CONSERVATION AND INCIDENTAL TAKE...

150
VOLUME I SECTION 9 June 17, 2003 FINAL MSHCP 9-1 SECTION 9.0 CONSERVATION AND INCIDENTAL TAKE ESTIMATES A Habitat Conservation Plan (HCP) is required to disclose impacts likely to result from the proposed Taking of species for which coverage is requested, and the HCP must also incorporate measures to minimize and mitigate the impacts of such Takings. This section presents overall impact and Take estimates associated with implementation of the MSHCP Plan. This section also summarizes measures incorporated in the MSHCP to minimize and mitigate the identified impacts, including conservation estimates. These measures are described in greater detail throughout the MSHCP Plan. For example, Section 3.0 of this document describes the MSHCP Conservation Area that will be assembled to offset the impacts of the proposed Taking. Section 5.0 of this document describes proposed management and monitoring efforts within the MSHCP Conservation Area. Section 6.0 discusses implementation measures incorporated in the Plan to minimize impacts and Section 7.0 incorporates measures to minimize impacts associated with specific Covered Activities. Taken together, these measures represent minimization of identified impacts to the maximum extent practicable as summarized at the end of this section ( Section 9.3). 9.1 OVERALL CONSERVATION AND IMPACT ESTIMATES OF VEGETATION COMMUNITIES This Section provides the overall conservation and impact estimates for Vegetation Communities with implementation of the MSHCP. Table 9-1 summarizes anticipated Conservation and loss of the Vegetation Communities within the Plan Area. In general, the MSHCP tends to protect more sensitive upland, wetland and forest Vegetation Communities that support a larger number of sensitive species in the Plan Area. Vegetation Communities may be considered within four broad categories: sensitive upland, wetland, forest and Agriculture. Sensitive upland communities include chaparral, coastal sage scrub, desert scrub, grassland and Riversidean alluvial fan sage scrub. Wetland communities include meadows and marshes, playas and vernal pools, riparian scrub/woodland/forest, cismontane alkali marsh and water. Forest communities include montane coniferous forest, and woodlands and forests. As shown in Table 9-1, implementation of the MSHCP generally would result in the greatest amount of protection for sensitive upland, wetland and forest communities because these Vegetation Communities generally tend to support a broader assemblage of sensitive species.

Transcript of CONSERVATION AND INCIDENTAL TAKE...

Page 1: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-1

SECTION 9.0

CONSERVATION AND INCIDENTAL TAKE ESTIMATES

A Habitat Conservation Plan (HCP) is required to disclose impacts likely to result from the proposed

Taking of species for which coverage is requested, and the HCP must also incorporate measures to

minimize and mitigate the impacts of such Takings. This section presents overall impact and Take

estimates associated with implementation of the MSHCP Plan. This section also summarizes

measures incorporated in the MSHCP to minimize and mitigate the identified impacts, including

conservation estimates. These measures are described in greater detail throughout the MSHCP Plan.

For example, Section 3.0 of this document describes the MSHCP Conservation Area that will be

assembled to offset the impacts of the proposed Taking. Section 5.0 of this document describes

proposed management and monitoring efforts within the MSHCP Conservation Area. Section 6.0

discusses implementation measures incorporated in the Plan to minimize impacts and Section 7.0

incorporates measures to minimize impacts associated with specific Covered Activities. Taken

together, these measures represent minimization of identified impacts to the maximum extent

practicable as summarized at the end of this section (Section 9.3).

9.1 OVERALL CONSERVATION AND IMPACT ESTIMATES OF

VEGETATION COMMUNITIES

This Section provides the overall conservation and impact estimates for Vegetation Communities

with implementation of the MSHCP. Table 9-1 summarizes anticipated Conservation and loss of the

Vegetation Communities within the Plan Area. In general, the MSHCP tends to protect more

sensitive upland, wetland and forest Vegetation Communities that support a larger number of

sensitive species in the Plan Area.

Vegetation Communities may be considered within four broad categories: sensitive upland, wetland,

forest and Agriculture. Sensitive upland communities include chaparral, coastal sage scrub, desert

scrub, grassland and Riversidean alluvial fan sage scrub. Wetland communities include meadows

and marshes, playas and vernal pools, riparian scrub/woodland/forest, cismontane alkali marsh and

water. Forest communities include montane coniferous forest, and woodlands and forests. As

shown in Table 9-1, implementation of the MSHCP generally would result in the greatest amount

of protection for sensitive upland, wetland and forest communities because these Vegetation

Communities generally tend to support a broader assemblage of sensitive species.

Page 2: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-2

TABLE 9-1

OVERALL VEGETATION COMMUNITY

CONSERVATION AND IMPACT ESTIMATES

Vegetation Community

Total Acres

in Plan Area*

Total Acres

Conserved

Percent of Total

Vegetation

Community Acres

Conserved in

Plan Area

Total Acres

Potentially

Affected*

Percent of Total

Vegetation

Community

Acres

Potentially

Affected in Plan

Area

Agriculture 169,480 20,020 12% 149,460 88%

Chaparral 434,950 272,280 63% 162,670 37%

Cismontane Alkali Marsh 1,260 40 3% 1,220 97%

Coastal Sage Scrub 156,450 81,720 52% 74,730 48%

Desert Scrubs 14,570 4,990 34% 9,580 66%

Grassland 154,140 42,820 28% 111,320 72%

Meadows and Marshes 1,020 510 50% 510 50%

Montane Coniferous Forest 29,910 20,500 69% 9,410 31%

Playas and Vernal Pools 7,910 6,750 85% 1,160 15%

Riparian Scrub, Woodland, Forest 15,030 11,190 74% 3,840 26%

Riversidean Alluvial Fan Sage Scrub 7,940 5,230 66% 2,710 34%

Unknown 1,350 1,240 92% 110 8%

Water 12,210 10,340 85% 1,870 15%

Woodlands and Forests 34,300 23,500 69% 10,800 31%

Developed or Disturbed Land 218,260 4,780 2% 213,480 98%

T O T A L S 1,258,780 505,910 752,870

* This includes the following acreages of each Vegetation Community on American Indian Lands that, while within the Plan Area, are not a part

of the Plan:

Agriculture: 1,110 Unknown: 10

Chaparral: 20,290 Water: 10

Cismontane Alkali Marsh: 1,110 Woodlands and Forests: 1,050

Coastal Sage Scrub: 3,760 Developed or Disturbed Land: 510

Desert Scrubs: 5,190

Grasslands: 7,260

Meadows and Marshes: 50

Montane Coniferous Forest: 10

Riparian Scrub, Woodland, Forest: 420

Riversidean Alluvial Fan Sage Scrub: 790

Anticipated impacts to coastal sage scrub, desert scrub, grassland, cismontane alkali marsh, and

Page 3: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-3

meadows and marshes under the MSHCP Plan would result in a substantial reduction of sensitive

Vegetation Communities within the Plan Area. Impacts to these Vegetation Communities would

also have substantial adverse effects on listed, sensitive, or special status species that occupy and

utilize these Vegetation Communities. For example, a substantial reduction of coastal sage scrub

Habitat would adversely affect listed and other sensitive species, such as the coastal California

gnatcatcher, through habitat modification. Inclusion of a large percentage of chaparral within the

MSHCP Conservation Area would reduce identified impacts to this community given the extensive

acreage and wide distribution of this Vegetation Community in the Plan Area and the relatively low

number of listed species preferring this Vegetation Community within the Plan Area. A majority of

the playas and vernal pools and riparian scrub/woodland/forest wetland communities would be

conserved. In general, inclusion of the majority of the forest communities as Conserved Habitat

within the MSHCP Conservation Area would minimize identified impacts to these communities.

Although not a sensitive Vegetation Community, impacts to agricultural land would cause a

substantial reduction of this community and would also adversely affect sensitive species that occupy

or utilize agricultural lands including raptors and burrowing mammals.

Anticipated impacts to Vegetation Communities may be contrasted with the anticipated Conservation

shown in Table 9-1. As described in this Plan, Conservation would occur within an appropriately

designed, managed and funded MSHCP Conservation Area consistent with overall and species-

specific conservation objectives.

9.2 COVERED SPECIES

This section provides the overall conservation and impact estimates for Covered Species under the

MSHCP Plan. In addition to describing the Conservation Strategy developed for each of the Covered

Species, maps and definitions are provided or referenced to facilitate review of the species

Conservation and impact summary contained in this section. Comprehensive analyses of the

Covered Species are located in the Species Accounts in Section B of the MSHCP Reference

Document, Volume II.

Page 4: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-4

' Conservation Strategy

The MSHCP will implement a Conservation Strategy for each of the Covered Species. The

Conservation Strategy for each species consists of four components: (1) a global biological goal, (2)

global biological objectives, (3) species-specific biological objectives, and (4) management and

monitoring activities (as referenced in global biological objective #11).

(1) Global Biological Goal

The following global biological goal applies to the Conservation of each of the MSHCP Covered

Species:

In the MSHCP Plan Area, Conserve Covered Species and their Habitats.

(2) Global Biological Objectives

The following global biological objectives shall be implemented for the benefit of the MSHCP

Covered Species in order to achieve the global biological goal:

1. The MSHCP Conservation Area shall be approximately 500,000 acres in size and shall be

comprised of approximately 347,000 acres of Public/Quasi-Public Lands and approximately

153,000 acres of Additional Reserve Lands. The MSHCP Conservation Area shall

incorporate the Cores and Linkages as well as habitat distributions generally as presented in

the MSHCP Conservation Area Description in Section A of the MSHCP Reference

Document, Volume II.

2. Upland habitat quality within the MSHCP Conservation Area shall be maintained and

managed generally in similar or better condition as at the time lands are conveyed to the

MSHCP Conservation Area.

3. Wetland habitat quality within the MSHCP Conservation Area shall be maintained and

managed generally in similar or better condition as at the time lands are conveyed to the

MSHCP Conservation Area.

Page 5: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-5

4. Best Management Practices (BMPs) shall be implemented in accordance with the guidelines

presented in Appendix C of this document. For Flood Control projects, the existing NPDES

general permit for storm water discharges associated with construction activities (Water

Quality Order 99-08-DWQ) and Section 1601 Streambed Alteration Agreement for flood

control facilities maintenance shall be implemented.

5. New land uses adjacent to the MSHCP Conservation Area shall implement the Guidelines

Pertaining to the Urban/Wildlands Interface presented in Section 6.1.4 of this document.

6. The Maintenance of Existing Habitat Conditions Prior to Reserve Assembly policies

presented in Section 6.1.5 of this document shall be implemented to ensure that habitat

quality within the Criteria Area generally remains in its existing condition prior to

conveyance of lands to the MSHCP Conservation Area.

7. The Protection of Species Associated with Riparian/Riverine Areas and Vernal Pools

policies presented in Section 6.1.2 of this document shall be implemented for the benefit of

the following species. Other species survey requirements associated with the MSHCP are

documented in Section 6.1.3 and 6.3.2 of this document. A complete summary of all

MSHCP species survey requirements is provided in Appendix E to this document.

Amphibians: arroyo toad

California red-legged frog

coast range newt

mountain yellow-legged frog

western spadefoot

Birds: American bittern

bald eagle

black-crowned night-heron

black swift

Cooper’s hawk

double-crested cormorant

downy woodpecker

least Bell’s vireo

Page 6: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-6

Lincoln’s sparrow

MacGillivray's warbler

Nashville warbler

osprey

peregrine falcon

purple martin

southwestern willow flycatcher

tree swallow

tricolored blackbird

western yellow-billed cuckoo

white-faced ibis

white-tailed kite

Wilson's warbler

yellow-breasted chat

yellow warbler

Fish: arroyo chub

Santa Ana sucker

Invertebrates: Riverside fairy shrimp

Santa Rosa Plateau fairy shrimp

vernal pool fairy shrimp

Plants: Brand’s phacelia

California black walnut

California muhly

California Orcutt grass

Coulter's goldfields

Coulter's matilija poppy

Davidson’s saltscale

Engelmann oak

Fish’s milkwort

graceful tarplant

lemon lily

Page 7: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-7

little mousetail

Mojave tarplant

mud nama

ocellated Humboldt lily

Orcutt’s brodiaea

Parish’s brittlescale

Parish's meadowfoam

prostrate navarretia

San Diego button-celery

San Jacinto Valley crownscale

San Miguel savory

Santa Ana River woolly-star

slender-horned spine flower

smooth tarplant

spreading navarretia

thread-leaved brodiaea

vernal barley

Wright's trichocoronis

Reptiles: western pond turtle

8. The Protection of Narrow Endemic Plant Species policies presented in Section 6.1.3 of this

document shall be implemented for the benefit of the following species. Other species

survey requirements associated with the MSHCP are documented in Section 6.1.3 and 6.3.2.

of this document A complete summary of all MSHCP species survey requirements is

provided in Appendix E to this document.

Brand’s phacelia

California Orcutt grass

Hammitt’s clay-cress

Johnston’s rock-cress

many-stemmed dudleya

Munz’s mariposa lily

Munz’s onion

Page 8: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-8

San Diego ambrosia

San Jacinto Mountains bedstraw

San Miguel savory (Santa Rosa Plateau, Steele Rock)

slender-horned spine flower

spreading navarretia

Wright’s trichocoronis

Yucaipa onion

9. The Additional Survey Needs and Procedures policies presented in Section 6.3.2 of this

document shall be implemented for the benefit of the following species. Other species

survey requirements associated with the MSHCP are documented in Section 6.1.3 and 6.3.2.

of this document A complete summary of all MSHCP species survey requirements is

provided in Appendix E to this document.

Amphibians: arroyo toad

California red-legged frog

mountain yellow-legged frog

Birds: burrowing owl

Mammals: Aguanga kangaroo rat

Los Angeles pocket mouse

San Bernardino kangaroo rat

Plants: Coulter’s goldfields

Davidson’s saltscale

heart-leaved pitcher sage

little mousetail

mud nama

Nevin’s barberry

Parish’s brittlescale

prostrate navarretia

round-leaved filaree

San Jacinto Valley crownscale

Page 9: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-9

smooth tarplant

thread-leaved brodiaea

Vail Lake ceanothus

10. Covered Activities within the Criteria Area and Allowable Uses within the MSHCP

Conservation Area shall be implemented in accordance with the siting, construction, design,

operations and maintenance guidelines included in Section 7.0 of this document.

11. Monitoring and management activities shall be undertaken for each of the MSHCP Covered

Species. Monitoring and management activities are described in Sections 5.2 and 5.3 of this

document.

(3) Species-Specific Biological Objectives

Species-specific biological objectives have been established for each of the Covered Species in the

MSHCP. Species-specific objectives are presented in each of the individual species accounts

contained in Section B of the MSHCP Reference Document, Volume II and in Table 9-2 presented

later in this section. The quantitative information presented in these accounts sets the overall

parameters for species Conservation and Reserve Assembly, but should not be regarded as absolute.

Some variation in the quantifications is anticipated as the Additional Reserve Lands are assembled

to provide for flexibility in Reserve Assembly and to enable responses to changing conditions on the

ground during the long-term Reserve Assembly process. Additionally, the species conservation

levels are preliminary and may be modified based on future data collection efforts and as jointly

agreed upon by the affected Permittees and the Wildlife Agencies.

In the individual species accounts, each species has been assigned a group designation - Group 1,

Group 2 or Group 3. These species groupings, which are based on the group definitions incorporated

in the Natural Communities Conservation Planning Act, have been assigned to assist development

of individual species objectives as well as monitoring and management requirements for the

MSHCP. The three group definitions are as follows:

Group 1 -- Take coverage is warranted based upon regional or landscape level considerations,

such as healthy population levels, widespread distribution throughout the MSHCP Plan Area,

Page 10: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-10

and life history characteristics that respond to habitat-scale conservation and management

actions.

Group 2 -- Take coverage is warranted based on regional or landscape level considerations with

the addition of site-specific conservation and management requirements that are clearly

identified in the MSHCP for species that are generally well-distributed, but that have Core

Areas that require Conservation.

Group 3 -- Take coverage is warranted based upon site specific considerations and the

identification of specific conservation and management conditions for species within a

narrowly defined Habitat or limited geographic area within the MSHCP Plan Area.

(4) Monitoring and Management Activities

Monitoring and management activities have been identified for each of the Covered Species as

presented in Sections 5.2 and 5.3 of this document.

' Species Accounts Maps

Maps have been prepared to accompany the species Conservation and Take summary presented in

this section. These maps contain the following information:

Figures 9-1, 9-2, and 9-3 -- Place Name Maps -These maps show the locations of place names

referenced in the individual species accounts. Three place names maps are provided: Geographic

Place Names, Geologic Features, and Rivers, Creeks and Water Bodies.

Figures 9-4, 9-5, 9-6, 9-7 and 9-8 -- Criteria Area Maps - The MSHCP Criteria Area generally

depicts the area from which Additional Reserve Lands will be assembled. The following maps have

been prepared to depict the relationship of the Criteria Area to various analysis factors referenced

in the species accounts (the data sources for the analysis factors shown on the maps are summarized

in Sections 2.1.1, 2.1.2 and 2.1.3):

Page 11: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and IncidentalTake Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-11

Page 12: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and IncidentalTake Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-12

Page 13: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and IncidentalTake Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-13

Page 14: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and IncidentalTake Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-14

Page 15: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and IncidentalTake Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-15

Page 16: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and IncidentalTake Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-16

Page 17: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and IncidentalTake Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-17

Page 18: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and IncidentalTake Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-18

Page 19: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-19

! Criteria Area with Bioregions

! Criteria Area with coastal sage scrub habitat quality

! Criteria Area with mapped wetland resources

! Criteria Area with sensitive soils

! Criteria Area with elevations

In addition to the figures noted above, two other maps will facilitate review of the species

Conservation and Take summary presented in this section. Numbered and lettered Cores and

Linkages, shown in Figure 3-2 (the Core and Linkage Map) and referenced in the individual species

accounts, depict existing and proposed Cores and Linkages within the MSHCP Conservation Area.

Numbered Area Plan Subunits, which are referenced in the individual species accounts when

defining units of measurement for some individual species objectives, are depicted in Figure 3-3 (the

Area Plan Subunits Map) and defined more specifically in Section 3.3 of this document.

' Definitions

Where specific or unique definitions have been developed for use in the MSHCP and may be

referenced in the species accounts, those definitions are provided following the Table of Contents

in this document. For other biological terms, refer to the following suggested references:

Lincoln, R.G. Boxshall, and P. Clark. 1998. A Dictionary of Ecology, Evolution and Systematics,

Second Edition, Cambridge University Press, 361. Pp.

Steen, E.G. 1971. Dictionary of Biology. Barnes & Noble Books, San Francisco, 640 pp.

' Species Conservation and Take Summary

Anticipated Conservation and Take of Covered Species are summarized in Table 9-2 and presented

in detail in Section B of the MSHCP Reference Document, Volume II. Table 9-2 includes the 146

species anticipated to be covered under the MSHCP Plan and is separated into nine columns: Species

Name (common/scientific), Group Designation, Rationale for Group Designation, Species

Objectives, Conservation Analysis Summary, Incidental Take, Survey Requirements, Monitoring,

and Management Activities Summary. In addition to providing the group designation, the rationale

Page 20: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-20

for the group designation is also provided for each of the Covered Species. The Species Objectives

and Conservation Analysis Summary columns explain the measures that will be taken to conserve

the Covered Species with implementation of the MSHCP Plan. The Incidental Take column

summarizes the anticipated Take of Covered Species with implementation of the Plan. The Survey

Requirements column identifies whether a survey must be conducted for a particular species and

references the section of the MSHCP Plan where survey requirements are more specifically defined.

The Monitoring column incorporates information from Table 5-8 in Section 5.3 of this document

including monitoring frequency for assessment of species distribution and reproduction. Finally, the

Management Activities column summarizes specific management activities that will be performed

for each species. The General Management measures referenced in this column are presented in

Section 5.2 of this document.

As described in Section 2.1.4, of the 146 Covered Species addressed in the MSHCP, 118 species are

considered to be adequately conserved. The remaining 28 Covered Species will be considered to be

adequately conserved when certain conservation requirements are met as identified in the species-

specific conservation objectives for those species. For 16 of the 28 species, particular species-

specific conservation objectives, which are identified in Table 9-3, must be satisfied to shift those

particular species to the list of Covered Species Adequately Conserved. For the remaining 12

species, a Memorandum of Understanding must be executed with the Forest Service that addresses

management for these species on Forest Service Land in order to shift these species to the list of

Covered Species Adequately Conserved. More complete information regarding these 28 species is

also included in Table 9-2, which summarizes anticipated Conservation and Take of the 146 Covered

Species as described above.

TABLE 9-3. REQUIREMENTS TO BE MET FOR 28 SPECIES

PRIOR TO INCLUDING THOSE SPECIES ON THE

LIST OF COVERED SPECIES ADEQUATELY CONSERVED 1

COMMON NAME/

SCIENTIFIC NAME REQUIREMENT

REPTILES

San Bernardino mountain kingsnake

Lampropeltis zonata parvirubra

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this

species on Forest Service Land.

San Diego mountain kingsnake

Lampropeltis zonata pulchra

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this

species on Forest Service Land.

Page 21: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

TABLE 9-3 (Continued)

9.0 Conservation and Incidental

Take Estimates

COMMON NAME/

SCIENTIFIC NAME REQUIREMENT

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-21

southern rubber boa

Charina bottae umbratica

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this

species on Forest Service Land.

southern sagebrush lizard

Sceloporus graciosus vandenburgianus

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this

species on Forest Service Land.

BIRDS

California spotted owl

Strix occidentalis occidentalis

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this species

on Forest Service Land.

grasshopper sparrow

Ammodramus savannarum

Species Specific Conservation Objective: Within the MSHCP Conservation Area, maintain occupancy

within 3 large Core Areas (100 percent) and at least 3 of the 4 smaller Core Areas (75 percent) in at

least 1 year out of any 5 consecutive year period. In order for this species to become a Covered

Species Adequately Conserved, the following conservation must be demonstrated: Include within the

MSHCP Conservation Area at least 8,000 acres in 7 Core Areas. Core areas may include the following:

1) Prado Basin, 2) Lake Skinner/Diamond Valley Lake/Johnson Ranch area, 3) Lake Mathews-Estelle

Mountain, 4) Badlands, 5) Box Springs, 6) Santa Rosa Plateau/Tenaja, 7) Kabian Park, 8) Steele Peak,

9) Sycamore Canyon, 10) Potrero, and 11) Mystic Lake/San Jacinto Wildlife Area. Three of the 7 Core

Areas will be large, consisting of a minimum of 2,000 acres of grassland habitat or

grassland-dominated habitat (<20 percent shrub cover). The other 4 Core Areas may be smaller but

will consist of at least 500 acres of contiguous grassland habitat or grassland-dominated habitat

(<20 percent shrub cover). Five of the 7 Core Areas will be demonstrated to support at least 20

grasshopper sparrow pairs with evidence of successful reproduction within the first 5 years after

permit issuance. Successful reproduction is defined as a nest which fledged at least one known young.

Lincoln’s sparrow (breeding)

Melospiza lincolnii

Species Specific Conservation Objective: Within the MSHCP Conservation Area, maintain occupancy

within 3 large Core Areas (100 percent) in at least 1 year out of any 5 consecutive-year period. In

order for this species to become a Covered Species Adequately Conserved, the following conservation

must be demonstrated: Include within the MSHCP Conservation Area at least 100 acres in 3 Core

Areas. Core Areas may include the following: (1) Tahquitz Valley; (2) Round Valley; (3) Garner Valley.

The three Core Areas will be large, consisting of a minimum of 50 acres of montane meadow, wet

montane meadow, and edges of montane riparian or riparian scrub. The Core Areas will be

demonstrated to support at least 20 Lincoln's sparrow pairs with evidence of successful reproduction

within the first 5 years after permit issuance. Successful reproduction is defined as a nest which

fledged at least one known young.

Williamson's sapsucker

Sphyrapicus thyroideus

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this species

on Forest Service Land.

Page 22: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

TABLE 9-3 (Continued)

9.0 Conservation and Incidental

Take Estimates

COMMON NAME/

SCIENTIFIC NAME REQUIREMENT

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-22

MAMMALS

San Bernardino flying squirrel

Glaucomys sabrinus californicus

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm occupation of 1000 ha (2470 acres) with a mean density of at least 2

individuals per hectare (2 individuals per 2.47 acres) in the San Jacinto mountains; and in the San

Bernardino Mountains confirm occupation of 100 ha.

PLANTS

beautiful hulsea

Hulsea vestita ssp. callicarpha

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm 16 localities (locality in this sense is not smaller than one quarter section)

with no fewer than 50 individuals each (unless a smaller population has been demonstrated to be

self-sustaining).

California bedstraw

Galium californicum ssp. primum

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this species

on Forest Service Land.

California muhly

Muhlenbergia californica

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)

containing at least 50 clumps (unless a smaller population has been demonstrated to be

self-sustaining).

chickweed oxytheca

Oxytheca caryophylloides

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)

managed with 1,000 individuals each (unless a smaller population has been demonstrated to be

self-sustaining).

Cleveland's bush monkeyflower

Mimulus clevelandii

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this species

on Forest Service Land.

cliff cinquefoil

Potentilla rimicola

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm five localities (locality in this sense is not smaller than one quarter section).

Coulter’s matilija poppy

Romneya coulteri

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm 30 localities (locality in this sense is not smaller than one quarter section).

Fish’s milkwort

Polygala cornuta var. fishiae

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)

with at least 50 individuals (ramets or genets) each (unless a smaller population has been demonstrated

to be self-sustaining).

Page 23: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

TABLE 9-3 (Continued)

9.0 Conservation and Incidental

Take Estimates

COMMON NAME/

SCIENTIFIC NAME REQUIREMENT

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-23

graceful tarplant

Holocarpha virgata ssp. elongata

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)

with 1,000 individuals each (unless a smaller population has been demonstrated to be self-sustaining).

lemon lily

Lilium parryi

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this species

on Forest Service Land.

Mojave tarplant

Deinandra mohavensis

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Include within the MSHCP

Conservation Area at least four localities (locality in this sense is not smaller than one quarter section)

occupying at least 100 acres.

ocellated Humboldt lily

Lilium humboldtii ssp. ocellatum

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this species

on Forest Service Land.

Parry’s spine flower

Chorizanthe parryi var. parryi

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)

with at least 1,000 individuals (unless a smaller population has been demonstrated to be

self-sustaining).

peninsular spine flower

Chorizanthe leptotheca

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)

with at least 1,000 individuals (unless a smaller population has been demonstrated to be

self-sustaining).

Plummer’s mariposa lily

Calochortus plummerae

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm six localities (locality in this sense is not smaller than one quarter section)

of at least 500 individuals each (unless a smaller population has been demonstrated to be

self-sustaining).

Rainbow manzanita

Arctostaphylos rainbowensis

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)

with more than 50 individuals each (unless a smaller population has been demonstrated to be

self-sustaining).

shaggy-haired alumroot

Heuchera hirsutissima

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this species

on Forest Service Land.

Page 24: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

TABLE 9-3 (Continued)

9.0 Conservation and Incidental

Take Estimates

COMMON NAME/

SCIENTIFIC NAME REQUIREMENT

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-24

small-flowered microseris

Microseris douglasii var. platycarpha

Species Specific Conservation Objective: In order for this species to become a Covered Species

Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP

Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)

with at least 1,000 individuals (unless a smaller population has been demonstrated to be

self-sustaining).

sticky-leaved dudleya

Dudleya viscida

In order for this species to become a Covered Species Adequately Conserved, a Memorandum of

Understanding must be executed with the Forest Service that addresses management for this species

on Forest Service Land.

Notes:

1 The species-specific conservation objectives listed in this table comprise only a portion of the objectives that must be satisfied for

each species. The objectives summarized in Table 9-2 and presented in detail in the species accounts of the MSHCP Reference

Docum ent, Volume II must also be fulfilled for each species.

9.3 MINIMIZATION AND MITIGATION MEASURES

Minimization and mitigation measures incorporated in the MSHCP Plan are presented in detail

throughout this document and the accompanying Reference Document - Volume II of the MSHCP.

This section summarizes and references those measures. Minimization and mitigation measures

have been incorporated in the MSHCP planning process and will be implemented during the long-

term MSHCP implementation process. The various points in the process during which minimization

and mitigation measures were and should be considered are listed below:

! during the alternatives development and conservation planning process;

! during the development of implementation procedures and strategies;

! during Reserve Assembly activities;

! during long-term management and monitoring activities.

As part of the alternatives development and conservation planning process, as discussed in detail

in Sections 2.0 and 3.4 of this document, a variety of alternatives and conservation planning

strategies were considered to minimize the likely effects on Covered Species of anticipated growth

in Western Riverside County. Of the four alternatives considered in detail, local stakeholders and

decision makers selected Alternative 1, the alternative addressing conservation needs for the greatest

number of species and the largest MSHCP Conservation Area. Also, as part of the conservation

Page 25: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-25

planning process, the circulation element required to accommodate projected growth was analyzed

in the context of conservation goals. Certain roads or road extensions were eliminated from the

circulation element or realigned in order to minimize impacts to Covered Species including the

following: Keller, Baxter, De Portola, Del Rio, Avenida la Cresta, Calle Contento, Murrieta Hot

Springs, Nicolas, Cactus Valley, Dunlap, Antelope Dawson, Newport, Estelle Mountain, Melanie,

Indian Truck Trail, Castile, Hixon, Gibble, Fairview, Orange, Reservoir, Pico, 9th, B Street, and 10th.

A Modified Reserve Design alternative was considered during the conservation planning process.

It was determined that this alternative did not provide for substantially greater Conservation of

Covered Species than would occur with the proposed Plan. This alternative was determined to be

infeasible as part of a screening process. The screening analysis is documented in the Alternatives

Screening Report included in the Appendix to the EIR/EIS for the MSHCP Plan and includes a

description of the Modified Reserve Design alternative as well as a discussion of the reasons why

the alternative was not carried forward for further analysis. While the Modified Reserve Design

alternative would not provide for Conservation of species in addition to the 146 anticipated to be

conserved under the MSHCP Plan, it would provide for a larger MSHCP Conservation Area and

broader Linkages. A substantial amount of the additional Conservation provided under this

alternative would be within areas designated for urban levels of Development and would thus

conflict with local land use plans.

A variety of implementation procedures and strategies are incorporated in the MSHCP to minimize

and mitigate impacts to Covered Species. These procedures and strategies are described in detail

in Sections 6.0 and 7.0 of this document and include elements such as the following - avoidance and

minimization; survey requirements for certain species and associated avoidance and minimization

requirements; criteria for siting, design, construction, operations and maintenance for Covered

Activities incorporating avoidance and minimization requirements; and measures to ensure that

indirect effects associated with land uses in proximity to the MSHCP Conservation Area are

minimized.

Likewise, a variety of measures are incorporated in the MSHCP Plan during the long-term Reserve

Assembly process to ensure that the MSHCP Conservation Area is assembled in a manner consistent

with MSHCP conservation goals and that the most appropriate lands are assembled for the MSHCP

Conservation Area. These measures include requirements for prioritization of acquisitions, use of

new information obtained as a result of surveys to focus acquisition efforts, guidelines to ensure that

Reserve Assembly occurs in general Rough Step with Take of Covered Species, and assurances of

adequate funding for Reserve Assembly.

Page 26: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental

Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-26

Comprehensive management and monitoring activities also will be undertaken during the life of the

MSHCP Permit as described in Section 5.0 of this document. The monitoring and management

plans are designed to address identified threats to Covered Species and to be consistent with MSHCP

conservation objectives that call for establishment of a functioning, self-sustaining MSHCP

Conservation Area.

Mitigation measures incorporated in the Plan to compensate for Take of Covered Species that cannot

be avoided or minimized, and to be undertaken by the Permittees include contribution of

approximately 103,000 acres to the MSHCP Conservation Area and adherence to the requirements

of the MSHCP. In addition, the Permittees will contribute to long-term management and monitoring

of the MSHCP Conservation Area. These contributions are described in greater detail in Section 8.0

of this document.

Page 27: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-27

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

INVERTEBRATES/CRUSTACEANS

Riverside fairy shrimp

(Streptocephalus

woottoni)

3 The Riverside fairy shrimp is narrowly distributed in the

Plan Area. It is known from five localities in deep vernal

pools. In the Plan Area vernal pools supporting Riverside

Fairy shrimp have identified on Murrieta stony clay loams,

Las Posas series, Wyman clay loam, and Willows soils.

Five known key populations occur within the Plan Area.

They are located on the Santa Rosa Plateau, Skunk

Hollow, Murrieta and Lake Elsinore back basin.

Preservation of this species must be analyzed based on

Core Areas. Riverside fairy shrimp requires specific

conditions, occurs in few locations, and uses a

well-defined Habitat that is narrowly distributed. This

species will require site specific considerations,

protection of essential Habitat on a landscape basis, and

species specific management conditions.

Objective 1: Include within the MSHCP Conservation Area at

least five Core Areas of occupied vernal pools (or

vernal pool complex) and their watersheds. Core

Areas include the Santa Rosa Plateau Ecological

Reserve (17,188 acres), Skunk Hollow (156 acres),

Murrieta (1,292 acres) and Lake Elsinore back basin

(3,180 acres).

Objective 2: Include within the MSHCP Conservation Area at

least 11,942 acres of landscape habitat area which

might contain suitable vernal pool habitat for

Riverside fairy shrimp (playa, basalt flows, and clay

soils). These areas may support other non-mapped

pools and depressions which may be suitable for

Riverside fairy shrimp.

Objective 3: Include within the MSHCP Conservation Area

additional areas within the Criteria Area identified as

important for the Riverside fairy shrimp. This

objective shall be met through implementation of

the Protection of Species Associated with Riparian/

Riverine Areas and Vernal Poolspolicy presented in

Section 6.1.2 of the MSHCP, Volume I. Wetland

mapping assembled as part of that policy shall be

reviewed as part of the project review process and,

if suitable Riverside fairy shrimp habitat, defined as

vernal pools, stock ponds, ephemeral ponds, or

other human-modified depressions, is identified on

the wetland maps and cannot be avoided, a

single-season dry or wet season survey for this

species shall be conducted by a qualified biologist

in accordance with accepted protocol. If survey

results are positive, 90 percent of the occupied

portions of the property that provide for long-term

Conservation value for the fairy shrimp shall be

conserved.

Conservation for the Riverside fairy shrimp

will be achieved by the inclusion of at least

11,942 acres of suitable Conserved

Habitat within five Core Areas which are

composed of large blocks of habitat within

the MSHCP Conservation Area. In

addition, other areas within the Criteria

Area identified as important for the

Riverside fairy shrimp will be conserved.

This objective shall be met through

implementation of the Protection of

Species Associated with Riparian/Riverine

Areas and Vernal Pools policy presented in

Section 6.1.2 of the MSHCP, Volume I.

Wetland mapping assembled as part of

that policy shall be reviewed as part of the

project review process and, if suitable

Habitat for this species is identified on the

wetland maps and cannot be avoided, a

single-season dry or wet season survey

for this species shall be conducted by a

qualified biologist in accordance with

accepted protocols. If survey results are

positive, 90 percent of the occupied

portions of the property that provide for

long-term Conservation value for the fairy

shrimp shall be conserved. Furthermore,

the Plan Area is contiguous with suitable

Habitat in Orange and San Diego counties.

Within the key population areas,

approximately 5,868 acres (33

percent) of potential vernal pool and

playa Habitat and suitable soils Habitat

land coverages would be located

outside the MSHCP Conservation

Area. Any Riverside fairy shrimp

present within this area would be

subject to Incidental Take under the

guidelines implemented as part of this

Plan.

Yes, see Section

6.1.2 (Protection

o f S p e c i e s

Associated with

Riparian/Riverine

Areas and Vernal

Pools).

8 General Management Measure 4. Each Reserve Manager

responsible for a Core Area containing Murrieta stony clay

loams, Las Posas series, Wyman clay loam, or Willows soils will

evaluate their Core Area for the presence of historic or vestigial

vernal pools. A program to enhance these areas will be

undertaken. Within the MSHCP Conservation Area, that pond

water seasonally will be identified and monitored for the

presence of fairy shrimp. Reserve Managers will ensure Habitat

support functions within the MSHCP Conservation Area by

maintaining and/or preserving watersheds of conserved known

or future vernal pools or depressions. Particular management

emphasis will be given to discing, illegal dumping and

maintaining hydrology.

Santa Rosa Plateau fairy

shrimp

(Linderiella santarosae)

3 The Santa Rosa Plateau fairy shrimp is narrowly

distributed in the Plan Area. It is restricted to cool-water

vernal pools which are formed on Southern Basalt Flows.

In the Plan Area, this species, and its microHabitat are

only known to occur on the Santa Rosa Plateau.

Objective 1: Include within the MSHCP Conservation Area at

least 32 acres of basalt flow vernal pools and a

majority of their watersheds within the Santa Rosa

Plateau Ecological Reserve.

Conservation for the Santa Rosa Plateau

fairy shrimp will be achieved by the

inclusion of at least 32 acres of suitable

basalt vernal pool Conserved Habitat

within 1 Core Area. In addition, at least

Within the key population areas, no

basalt flow vernal pool Habitat would

be located outside the MSHCP

Conservation Area, and approximately

252 acres (11 percent) of potential

Yes, see Section

6.1.2 (Protection

o f S p e c i e s

Associated with

Riparian/Riverine

8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and/or preserving watersheds

of conserved known and future basalt vernal pools. Particular

management emphasis will be given to maintaining hydrology.

Page 28: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-28

Because the Santa Rosa Plateau fairy shrimp requires

specific conditions, occurs in few locations, and is

confined to a well defined Habitat that is very narrowly

distributed, this species will require site specific

considerations, protection of preferred Habitat, and

species specific management conditions.

Objective 2: Include within the MSHCP Conservation Area at

least 2,134 acres of area on the basalt flow that

may contain unmapped vernal pool Habitat which

might support Santa Rosa Plateau fairy shrimp.

Objective 3: Include within the MSHCP Conservation Area

additional areas within the Criteria Area identified as

important for the Santa Rosa Plateau fairy shrimp.

This objective shall be met through implementation

of the Protection of Species Associated with

Riparian/Riverine Areas and Vernal Pools policy

presented in Section 6.1.2 of the MSHCP, Volume

I. Wetland mapping assembled as part of that

policy shall be reviewed as part of the project

review process and, if suitable Santa Rosa Plateau

fairy shrimp Habitat, defined as vernal pools, stock

ponds, ephemeral ponds, or other human-modified

depressions over Basaltic soils, is identified on the

wetland maps and cannot be avoided, a

single-season dry or wet season survey for this

species shall be conducted by a qualified biologist

in accordance with accepted protocols. If survey

results are positive, 90 percent of the occupied

portions of the property that provide for long-term

Conservation value for the fairy shrimp shall be

conserved.

2,134 acres of Basalt flow soils, which

may support suitable vernal pools within

the MSHCP Plan Area will be conserved.

This objective will be met through

implementation of the Protection of

Species Associated with Riparian/Riverine

Areas and Vernal Pools policy presented in

Section 6.1.2 of the MSHCP, Volume I.

Wetland mapping assembled as part of

that policy shall be reviewed as part of the

project review process and, if suitable

Habitat for this species is identified on the

wetland maps and cannot be avoided, a

single-season dry or wet season survey

for this species shall be conducted by a

qualified biologist in accordance with

accepted protocols. If survey results are

positive, 90 percent of the occupied

portions of the property that provide for

long-term Conservation value for the fairy

shrimp shall be conserved. Furthermore,

the MSHCP Plan Area is contiguous with

suitable Habitat in Orange, and San Diego

counties.

vernal pool supporting basalt flow

Habitats would be located outside the

MSHCP Conservation Area. The entire

known population would be included

within the MSHCP Conservation Area

and therefore, no Take of populations

is anticipated.

Areas and Vernal

Pools).

vernal pool fairy shrimp

(Branchinecta lynchi)

3 The vernal pool fairy shrimp is narrowly distributed at

relatively few locations within the MSHCP Plan Area in

suitable Habitat. It is present in vernal pools in three key

locations in the MSHCP Plan Area. Key locations are the

Santa Rosa Plateau Ecological Reserve, Skunk Hollow,

and Salt Creek in west Hemet. Conservation analysis for

this species must be considered based on Core Areas.

Because the vernal pool fairy shrimp requires specific

conditions, occurs in few locations, and uses a well

defined Habitat that is narrowly distributed, this species

will require site-specific considerations, protection of

essential Habitat on a landscape basis, and species

specific management conditions.

Objective 1: Include within the MSHCP Conservation Area at

least 476 acres of suitable Habitat by conserving

vernal pool and playa Habitat (does not include

watershed acreages) within the West Hemet portion

of Salt Creek, Santa Rosa Plateau Ecological

Reserve, and Skunk Hollow.

Objective 2: Include within the MSHCP Conservation Area at

least 2,647 acres of alkali playa (Willow, Traver and

Domino soils) in the floodplain of the San Jacinto

River and west Hemet portion of Salt Creek which

contains suitable Habitat for this species.

Objective 3: Include within the MSHCP Conservation Area at

least three Core Areas, which include the three

Conservation for the vernal pool fairy

shrimp will be achieved by the inclusion of

at least 3,123 acres of suitable Conserved

Habitat within three Core Areas which are

composed of large blocks of Habitat within

the MSHCP Conservation Area. In

addition, other areas within the Criteria

Area identified as important for the vernal

pool fairy shrimp will be conserved. This

objective shall be met through

implementation of the Protection of

Species Associated with Riparian/Riverine

Areas and Vernal Pools policy presented in

Section 6.1.2 of the MSHCP, Volume I.

Wetland mapping assembled as part of

About 67 acres (12 percent) of

potential vernal pool and playa Habitat

for the vernal pool fairy shrimp within

the three locations and 4,016 acres

(60 percent) of Willows, Traver, and

Domino soils within the flood plain of

the San Jacinto River and the west

Hemet portion of Salt Creek, would be

outside the MSHCP Conservation

Area. Any vernal pool fairy shrimp

present within this area would be

subject to Incidental Take under the

guidelines implemented as part of this

Plan.

Yes, see Section

6.1.2 (Protection

o f S p e c i e s

Associated with

Riparian/Riverine

Areas and Vernal

Pools).

8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and/or preserving watersheds

of conserved vernal pools or depressions. Particular

management emphasis will be given to farming, grazing,

alteration of hydrology and non-native Habitat creation.

Page 29: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-29

known occupied vernal pools (or vernal pool

complexes) and their watersheds in the West Hemet

portion of Salt Creek (4,043 acres), Santa Rosa

Plateau Ecological Reserve (17,188 acres), and

Skunk Hollow (156 acres).

Objective 4: Include within the MSHCP Conservation Area

additional areas within the Criteria Area identified as

important for the vernal pool fairy shrimp. This

objective shall be met through implementation of

the Protection of Species Associated with Riparian/

Riverine Areas and Vernal Pools policy presented in

Section 6.1.2 of the MSHCP, Volume I. Wetland

mapping assembled as part of that policy shall be

reviewed as part of the project review process and,

if suitable vernal pool fairy shrimp Habitat, defined

as vernal pools, stock ponds, ephemeral ponds, or

other human-modified depressions over willow

soils, is identified on the wetland maps and cannot

be avoided, a single-season dry or wet season

survey for this species shall be conducted by a

qualified biologist in accordance with accepted

protocol. If survey results are positive, 90 percent

of the occupied portions of the property that provide

for long-term Conservation value for the fairy

shrimp shall be conserved.

that policy shall be reviewed as part of the

project review process and, if suitable

Habitat for this species is identified on the

wetland maps and cannot be avoided, a

single-season dry or wet season survey

for this species shall be conducted by a

qualified biologist in accordance with

accepted protocols. If survey results are

positive, 90 percent of the occupied

portions of the property that provide for

long-term Conservation value for the fairy

shrimp shall be conserved. Furthermore,

the Plan Area is contiguous with suitable

Habitat in Orange, and San Diego

counties.

INVERTEBRATES/INSECTS

Dehli Sands flower-loving

fly

(Rhaphiomidas

terminatus abdominalis)

3 The Delhi Sands flower-loving fly is found at low numbers

and is narrowly distributed within the Plan Area. This

species is restricted by the distribution and availability of

open Habitats within the fine, sandy Delhi series soils.

USFWS has identified three main population areas are

known to currently or to have at one time existed in the

Plan Area. One is located in the northwestern corner of

the Plan Area, a second is located in the Jurupa Hills,

and the third is located in the Agua Mansa Industrial

Center area. Because the Delhi Sands flower-loving fly

requires a specific Habitat type, this species will require

site specific considerations, protection and enhancement

of this limited Habitat type, and species specific

management to maintain the Habitat and populations.

Conservation for this species within the Plan Area will occur

according to the process described in either Objective 1A,

Objective 1B or Objective 1C noted below. Under Objective 1A,

surveys for the Delhi Sands flower-loving fly will not be required

on a project-by-project bases. Under Objectives 1B and 1C,

project-by-project surveys in accordance with USFWS “Interim

General Survey Guidelines for the Delhi Sands flower-loving fly”

will be required. Any revisions to these Guidelines shall be

approved by the County in order for it to be applicable to the

requirements of the MSHCP.

Implementation of the Objectives below will provide for

Conservation of the Delhi Sands flower-loving fly. Initially, the

Local Permittees will utilize Objective 1B. However, During the life

Conservation for the Delhi sands

flower-loving fly will be achieved by the

inclusion of at least 50 acres of primary

Habitat and 170 acres of restorable Habitat

as Conserved Habitat within three Core

Areas within the MSHCP Conservation

Area, totaling approximately 220 acres.

This acreage may be updated based on

site-specific base mapping within three

years after permit issuance. The first

priority for Conservation will be within

Core Areas including the three known

point localities of the Delhi Sands

flower-loving fly. These locations include

Approximately 452 acres (90 percent)

of primary Habitat over Delhi soils and

791 acres (82 percent) of potentially

restorable Habitat for the Delhi sands

flower-loving fly would be outside the

MSHCP Conservation Area and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. One (25 percent) of the

5 precision code "1" records would be

outside the MSHCP Conservation

Area.

None 8 1** Reserve Managers will manage conserved lands to maintain

presence of Delhi fly at existing levels and provide opportunities

for colonization by Delhi fly within the 170 acres of restorable

lands to be conserved. Management considerations will include

measures to maintain ecological processes (i.e., sand

transport). As opportunities are available, Reserve Managers

will work with others involved in Delhi fly Conservation outside

the Plan Area to develop a scientifically acceptable program for

determining long-term evidence of successful reproduction.

Particular management measures for known and future

occurrences will include sand management (possibly

transporting soils mechanically within the MSHCP Conservation

Area to ensure that sand is maintained). The Core Areas will be

fenced and signed to prevent trespassing, possibly patrolled.

Page 30: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-30

of the Plan, the Local Permittees may elect to utilize Objective 1A,

1B or 1C. Fulfillment of the ultimate requirements of any single

one of the Objectives, 1A, 1B or 1C, in combination with the other

components of the MSHCP Conservation Strategy for this species

as described in the Introduction to Species Accounts, Volume II.B

of the MSHCP, is anticipated to provide for Conservation for the

Delhi Sands flower-loving fly.

Objective 1A: Include within the MSHCP Conservation Area,

Delhi soils in at least three Core Areas, totaling

220 acres of Additional Reserve Lands. Areas to

be conserved may include suitable dispersal

and/or movement habitat and interconnecting

linkages within the Core Areas themselves or be

contiguous to areas that have already been

conserved within and outside the Plan Area

including locations outside the MSHCP Criteria

Area or within San Bernardino County in the

situation noted below.

The first priority for conservation will be within

Core Areas including the three known occupied

areas that include the known localities of the

Delhi Sands flower-loving fly in the Plan Area.

These locations include one in the northwestern

corner of the Plan Area near Hamner Avenue and

SR-60 (Mira Loma), one in the Jurupa Hills, and

one in the Agua Mansa Industrial Center. If

conservation is not feasible in these areas, those

acres may be conserved in other locations

within the MSHCP Plan Area and outside the

Criteria Area or within San Bernardino County,

subject to approval by the Wildlife Agencies and

provided the other location has long-term

conservation value for the species. Long-term

conservation value will be measured by such

factors as occupation by the Delhi Sands flower-

loving fly on the lands to be conserved, presence

of Delhi soils, opportunities for connectivity to

other areas conserved for the species and other

appropriate factors. Conservation within Riverside

or San Bernardino County will be within Service

one in the northwestern corner of the Plan

Area near Hamner Avenue and SR-60, one

in the Jurupa Hills, and one in the vicinity

of the Agua Mansa Industrial Center. If

Conservation is infeasible in these areas,

other locations within the MSHCP Plan

Area and outside the Criteria Area, or

within San Bernardino County, may be

considered to achieve the acreage

Conservation requirement. If Conservation

occurs in these areas, it shall be

demonstrated that the conserved areas

will have long-term Conservation value for

the Delhi Sands flower-loving fly.

Long-term Conservation value will be

measured by such factors as occupation

by the fly on the lands to be conserved,

presence of Delhi soils, opportunities for

connectivity to other areas conserved for

the fly and other factors such as may be

determined by the Reserve Management

Oversight Committee. Also, the MSHCP

Conservation Area will include suitable

dispersal and/or movement Habitat and

interconnecting Linkages, including Delhi

soils and other open Habitats. These

Habitats will be conserved in between

Core Areas or areas that have already

been conserved for the Delhi Sands

flower-loving fly. Within the MSHCP

Conservation Area, Reserve Managers

shall document successful reproduction at

all three Core Areas within the MSHCP

Conservation Area, or other areas to be

conserved in accordance with Objective 1,

as measured by the presence/absence of

pupae cases or newly emerged (teneral)

individuals once a year for the first five

years after permit issuance and then as

determined by the Reserve Management

Oversight Committee as described in

Section 6.6 of the MSHCP, Volume I (but

These sites will be weeded and planted with native seed

collected locally.

Page 31: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-31

identified recovery units as set forth in the

Recovery Plan for the Delhi Sands flower-loving

fly.

Progress toward achieving this objective will be

measured and reported on an annual basis as

part of the annual reporting required in Section

6.11 of the Plan. Annual reporting with respect

to this Objective 1A will be in accordance with

the Rough Step analysis parameters described in

Section 6.7 of the Plan. For purposes of Reserve

Assembly accounting in accordance with the

Rough Step procedures, the baseline for analysis

will be Delhi Sands flower-loving fly suitable

habitat within the Criteria Area as depicted on

Figure 9-9. Suitable habitat for this species is

defined as Delhi soils co-occurring with coastal

sage scrub, grassland and alluvial fan sage scrub

(prime habitat) and Delhi soils co-occurring with

agriculture (restorable habitat). In accordance

with the requirements of Section 6.7 of the Plan,

if Objective 1A is selected by the Local

Permittees and the Rough Step rule is not met for

this species during any analysis period, the

Permittees must conserve appropriate lands

supporting suitable habitat to bring the Plan back

into the parameters of the rule prior to authorizing

additional loss of suitable habitat. The total

private lands acreage of suitable habitat within

the Criteria Area (“TA” in rough step rule) is 810

acres. The Additional Reserve Lands acreage

goal for suitable habitat “c” in rough step rule) is

220 acres. Loss of suitable habitat will be

measured only within the Criteria Area.

Conservation of suitable habitat will be measured

inside and outside the Criteria Area as long as the

Conservation meets the configuration parameters

of Objective 1A as stated in the first paragraph of

this Objective.

Objective 1B: With the exception of Cells 21, 22 and 55 within

Area Plan Subunit 3 of the Jurupa Area Plan

not less frequently than every 8 years).

Finally, the Plan Area is contiguous with

suitable Habitat in southern San

Bernardino County.

Page 32: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-32

discussed below, include within the MSHCP

Conservation Area locations within the Plan Area

determined to be occupied by the Delhi Sands

flower-loving fly based on the results of surveys

conducted in accordance with USFWS “Interim

General Survey Guidelines for the Delhi Sands

flower-loving fly.” Any revision to these

Guidelines shall be approved by the County in

order for it to be applicable to the requirements of

the MSHCP. Surveys shall be conducted for

future projects within the approximately 5,100

acres of mapped Delhi Soils within the Plan Area

(see Figure 9-10, Delhi Sands flower-loving fly

soils with Criteria Area).

It is understood that surveys would be conducted

within suitable habitat areas of the mapped Delhi

soils as determined by the surveying biologist.

For example, according to the MSHCP database

of the approximately 5,100 acres of mapped

Delhi soils within the Plan Area, approximately

2,500 acres (49%) are already developed

according to the MSHCP vegetation map and

would not be considered to be suitable habitat.

Once two years of surveys have been conducted,

no further surveys shall be required. If the

project site is determined to be occupied, 75

percent of the mapped Delhi Soils on site will be

conserved. However, if the surveying biologist

determines that distribution of habitat for the

Delhi Sands flower-loving on site is not

consistent with the extent of mapped Delhi Soils

on site, 75 percent of such habitat on site will be

conserved. The Service will be given 60 days to

review and comment on the surveying biologists

determination. If the Service disagrees with the

determination of the surveying biologist, the

applicable Local Permittee(s) and the Service will

meet and confer within 10 working days to

attempt to resolve the different determinations. If

it is determined that 75 percent conservation on

the occupied site is infeasible or the Service

Page 33: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-33

concurs that such conservation would not

contribute to the long-term conservation of the

species, conservation may occur within the

conservation areas identified in Objective 1A at a

ratio of three times (3:1) the mapped Delhi soils

or subject to Service concurrence, the habitat of

the species as identified by survey biologist on

the identified occupied site. At such time asthe

cumulative conservation according to the above

methodology results in the conservation of 220

acres, no further surveys or conservation will be

required. If surveys for future projects are

conducted in accordance with USFWS Interim

General Survey Guidelines within the mapped

Delhi Soils within the Plan Area, not already

conserved, and no new Delhi Sands flower-loving

flies within the Plan Area are detected, no

additional conservation within the Plan Area will

be required.

Within Cells 21, 22 and 55 of Area Plan Subunit

3 of the Jurupa Area Plan, surveys shall not be

required. Instead, 50 acres of Additional Reserve

Lands shall be acquired within the geographic

areas identified in Objective 1A and according to

the reserve configuration guidance included in

Objective 1A. Tracking of acreage conserved and

lost within these cells shall be in accordance with

the Rough Step analysis parameters described in

Objective 1A. For purposes of Cells 21, 22 and

25, the total private lands acreage of suitable

habitat within the Criteria Area (“TA” in Rough

Step rule) is 270 acres. The Additional Reserve

Lands acreage goal for suitable habitat (“C” in

Rough Step rule) is 50 acres. Loss of suitable

habitat will be measured only within the Criteria

Area. Conservation of suitable habitat will be

measured inside and outside the Criteria Area as

long as the Conservation meets the configuration

parameters of Objective 1A.

Page 34: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-34

Objective 1C: Include within the MSHCP Conservation Area at

least 50 acres of Additional Reserve Lands within

the Plan Area and a combination of: 1) 80

percent of areas identified as occupied by the

Delhi Sands flower-loving fly by existing data or

determined to be occupied during surveys

conducted in accordance with USFWS ”Interim

General Survey Guidelines for the Delhi Sands

flower-loving fly” and any County approved

revisions to these Guidelines; and 2) mitigation

offsite at a ratio of 2:1 of areas determined to be

occupied by existing data or protocol surveys.

Surveys shall be conducted for projects within

the approximately 5,100 acres of mapped Delhi

Soils within the Plan Area (see Figure 9-10, Delhi

Sands flower-loving fly soils with Criteria Area).

Once two years of surveys have been conducted,

no further surveys shall be required. The survey

area may be modified by mutual agreement of the

Wildlife Agencies and the Permittee with land use

authority over the proposed project area. If

project surveys or existing data show occupancy

of the site or a portion of the site by the Delhi

Sands flower-loving fly, take of the Delhi Sands

flower-loving fly on 20 percent of the occupied

habitat may occur. The remaining 80 percent of

the onsite habitat shall be avoided by the project

applicant and managed for conservation of the

species. Due to the critical condition of this

species, the Wildlife Agencies and the Permittees

shall focus conservation efforts in the

northwestern portion of the Plan Area in areas

known to be occupied by the Delhi Sands flower-

loving fly. Upon the completion of the acquisition

of 50 acres of Delhi Sands flower-loving fly

habitat in Riverside County by the Parties, the

survey and mitigation/avoidance requirements

shall revert to:

! Projects proposed on the approximately

5,100 acres of Delhi Soils within the Plan

Page 35: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-35

Area will conduct focused surveys using

USFWS “Interim General Survey

Guidelines for the Delhi Sands flower-

loving fly” and any County approved

revisions to these Guidelines to determine

occupancy by the Delhi Sands flower-

loving fly.

! When Delhi flies are present on the project

site, occupied habitat shall be mitigated at

a 2:1 ratio at a location consistent with

achieving long-term conservation value for

the species.

! If, prior to the conservation of the first 50

acres, a project has avoided 80 percent

of the occupied habitat on the project site,

the project proponent may request of the

Permittee a modification of their project to

allow the development of the 80 percent

avoidance area. If the Permittee, with the

concurrence of the Wildlife Agencies,

determines that the conservation of Delhi

Sands flower-loving fly habitat at an offsite

location would result in equal or greater

conservation value for the species than

the habitat in the 80 percent onsite

avoidance area and that the alternative

mitigation site is at a location consistent

with achieving long-term conservation

value for the species, then the Permittee

may authorize the loss of Delhi Sands

flower-loving fly habitat on the avoidance

area. The mitigation for this take shall be

at a 2:1 ratio with the take area being the

areas identified as the entire occupied

area (i.e., mitigation includes the occupied

habitat previously authorized for

development) when the 80 percent onsite

avoidance area was established.

Page 36: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-36

Objective 2: Within the MSHCP Conservation Area, Reserve

Managers shall document successful

reproduction at all three Core Areas or other

areas to be conserved in accordance with

Object ive 1, as measured by th e

presence/absence of pupae cases or newly

emerged (teneral) individuals once a year for the

first 5 years after permit issuance and then as

determined to be appropriate (but not less

frequently than every 8 years).

Quino checkerspot

butterfly

(Euphydryas editha quino)

3 The Quino checkerspot butterfly is narrowly distributed at

relatively few locations within the Plan Area in suitable

Habitat. Although they may occur in nearly any upland

Habitat that is relatively open, they are also restricted by

the distribution and availability of their host plants.

Because of wide-spread infestation of non-native exotic

weed species and Habitat type conversion, much of the

Habitat that was once open and suitable is now densely

vegetated and unsuitable. Patches of suitable Habitat

within larger Habitat matrices are unpredictably available

and distributed.

Spatially clustered Quino checkerspot butterfly

observations have been organized into occurrence

complexes for the purposes of Conservation analysis.

Occurrence complexes are known segments of

short-term population distributions presumed to be within

a larger distribution of metapopulations. There are 22

occurrence complexes within the Plan Area. Large and/or

strategically located occurrence complexes are

considered core populations. There are seven identified

Core population Areas.

The Lake Mathews/Estelle Mountain portion of the Lake

Mathews/Estelle Mountain/Harford Springs Core Area is

unoccupied; it was historically occupied, but Quino has

been extirpated. The other core populations occur in the

southwestern portion of the Riverside Basin in the south

and southeastern portions of the Plan Area from the

vicinity of Diamond Valley Lake trending to the south and

east into the Anza Valley.

Objective 1: Include within the MSHCP Conservation Area at

least 67,493 acres of Habitat mosaic (which may

include chaparral, coastal sage scrub, desert

scrubs, grasslands, peninsular juniper woodland

and scrub, playas and vernal pools, and

Riversidean alluvial fan sage scrub Habitats)

supporting the seven Core populations in the

southwest portion of the County, including 1) the

Lake Mathews/Estelle Mountain/ Harford Springs

Core Area (17,989 acres), 2) Warm Springs

Creek Core Area (3,517 acres), 3) Johnson

Ranch/Lake Skinner Core Area (8,068 acres), 4)

Oak Mountain Core Area (8,737 acres), 5) Wilson

Valley Core Area (9,303 acres), 6) Sage Core

Area (4,462 acres), and 7) Silverado/Tule Peak

Core Area (15,202 acres).

Objective 2: Include within the MSHCP Conservation Area the

12 known satellite (non-core) occurrence

complexes within the following six areas: French

Valley, Oak Mountain/Vail Lake, Anza Valley,

Sage/Wilson Valley, Brown Canyon/Cactus Valley

and Aguanga.

Objective 3: Within the MSHCP Conservation Area, maintain

landscape connectivity around the Lake

Mathews/Estelle Mountain/Harford Springs Core

Area and between and among the core and

satellite occurrence populations in the

southeastern portion of the Plan Area. In the

Lake Mathews Core Area, the MSHCP

Conservation for the Quino checkerspot

butterfly will be achieved by the inclusion

of at least 67,493 acres of Core Area

including suitable Conserved Habitat

mosaic within seven Core Areas and an

additional 12 satellite locations. These

areas are composed of large blocks of

Habitat within the MSHCP Conservation

Area. The Core Areas are provided with

numerous connections of Proposed and

Existing Cores. Potential dispersion

inhibitors, such as busy roads and

highways, will be modified by engineers to

accommodate movement of the species.

In addition, the MSHCP Plan will document

the distribution of Quino checkerspot on

an annual basis. The current population

size of the Quino checkerspot is unknown,

but the general distribution is, and a

relatively sizable database is present

within the UCR database. Furthermore,

the Plan Area is contiguous with suitable

Habitat in eastern San Diego County.

Approximately 41,668 acres (38%) of

potential Habitat mosaic within the

Core Area (15,511 acres [46%] in the

Lake Mathews/Estelle Mountain Core

Area; 1,305 acres [27%] in the Warm

Springs Core Area; 5,707 acres41%]

in the Johnson Ranch/Lake Skinner

Core Area; 4,291 acres [33%] acres in

the Oak Mountain Core Area; 102

acres (1%) in the Wilson Valley Core

Area; 8,999 acres [67%] of the Sage

Core Area, and; 5,728 acres [27%] of

the Silverado/Tule Peak Core Area) for

the Quino checkerspot would be

outside the MSHCP Conservation Area

and individuals within these areas will

be subject to incidental take consistent

with the Plan. Twenty-seven (32%) of

the 85 precision code "1" or "2"

records would be outside the MSHCP

Conservation Area. However of these,

three (11%) are mapped within

existing agriculture and one (4%) are

located in developed or disturbed

Habitat coverages.

None 1 Each Reserve Manager will evaluate the condition of the Quino

checkerspot Habitat within their Core Area and maintain an

adaptive program to maintain and/or enhance Quino checkerspot

Habitat to increase the value of the Habitat and viability of the

Quino checkerspot. This Adaptive Management program will

assess the efficacy of various methods such as fire to retain a

low vegetation layer or open aspect to the vegetation and

remove weedy annual species; using mechanical equipment to

attain Habitat openings within dense chaparral areas between

occupied areas to facilitate movement; or other measures which

might enhance unoccupied Habitat or preserve Habitat quality in

occupied areas. Reserve Managers will maintain landscape

connectivity around the Lake Mathews/Estelle Mountain/Harford

Springs Core Area and between and among the core and satellite

occurrence populations in the southeastern portion of the Plan

Area. In the Lake Mathews Core Area, the reserve configuration

will maintain landscape connectivity through native Habitat

between Lake Mathews, Olsen Canyon, Monument Peak,

Dawson Canyon, Estelle Mountain, Bull Canyon, Steele Valley,

Gavilan Hills, and Harford Springs areas. (In the southwestern

Riverside County area, reserve configuration will maintain

landscape connectivity through native Habitat between and

among the core population occurrences and the satellite

occurrences in Antelope Valley and Murrieta Hot Springs area,

east through the French Valley/Lake Skinner area, east to the

Sage and Santa Rosa Hills area, east and south through Wilson

Valley, Billy Goat Mountain, Aguanga, Tule Valley, and north to

Anza and the Cahuilla Indian Reservation.) Reserve Managers

will document distribution on an annual basis. Other

management activities will focus on non-native species, farming,

grazing, off-road vehicles and human collection.

Page 37: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-37

Quino checkerspot requires specific Habitat that is

narrowly distributed, is extremely vulnerable to Habitat

degradation and fragmentation, and will require site

specific management considerations.

Conservation Area configuration will maintain

landscape connectivity through native Habitat

between Lake Mathews, Olsen Canyon,

Monument Peak, Dawson Canyon, Estelle

Mountain, Bull Canyon, Steele Valley, Gavilan

Hills, and Harford Springs areas. In the

southwestern Riverside County area, the MSHCP

Conservation Area configuration will maintain

landscape connectivity through native Habitat

between and among the core population

occurrences and the satellite occurrences in

Antelope Valley and Murrieta Hot Springs area,

east through the French Valley/Lake Skinner area,

east to the Sage and Santa Rosa Hills area, east

and south through Wilson Valley, Billy Goat

Mountain, Aguanga, Tule Valley, and north to

Anza and the Cahuilla Indian Reservation.

The MSHCP Conservation Area configuration will

provide a connection between the Lake

Mathews/Estelle Mountain/Harford Springs Core

Area and the other Core Areas through the Steele

Peak/North Peak North Elsinore/Warm Springs,

Sedco Hills and Iodine Spring areas. Numerous

roads and highways cross this connection and

engineering design measures will be

implemented to accommodate dispersion of

butterflies throughout the Plan Area.

Objective 4: Within the MSHCP Conservation Area, Reserve

Managers will document the distribution of Quino

checkerspot on an annual basis.

FISH

arroyo chub

(Gila orcutti)

2 The arroyo chub is distributed within two watersheds, the

Santa Ana and Santa Margarita watersheds. It occurs in

several locations within these watersheds. Although the

preferred Habitat, open water and emergent vegetation in

lower gradient streams with sand or mud substrate, is

located in numerous areas within the Plan Area, only six

Objective 1: Include within the MSHCP Conservation Area,

4,580 acres of Habitat that provides potential

spawning and foraging opportunities for the

arroyo chub in the Santa Ana and Santa

Margarita watersheds.

Conservation for this species will be

achieved by inclusion of at least 4,580

acres of suitable Conserved Habitat

including the occupied Habitat (water and

freshwater marsh) and adjacent buffer and

streambank (includes a variety of Habitats)

About 520 acres (10 percent) of

potential Habitat for the arroyo chub

will be outside the Criteria Area and

Public/Quasi-Public designations and

individuals within these areas will be

subject to Incidental Take consistent

None 8 General Management Measure 4. Reserve Managers will

prepare an Adaptive Management plan for the arroyo chub. The

management plan will address threats to the chub from

degraded Habitat, including reduced water quality, loss of Habitat

and introduction of non-native species; identify areas of the

watershed that are necessary to successful spawning of the

Page 38: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-38

drainages currently support populations of the arroyo

chub. These locations comprise the Core Areas for the

species and include the Santa Margarita River, De Luz

Creek upstream of the De Luz Post Office, lower Sandia

Creek, Murrieta Creek near its mouth at the Santa

Margarita River, Cole Creek between the confluence of

Murrieta Creek and the edge of the Conservancy property,

and Temecula Creek upstream of Vail Lake. Within the

Santa Ana River, the species Core Area occurs from the

Riverside and San Bernardino county line downstream to

the Prado Dam (Swift 2001). Because it requires specific

well known Habitat conditions and occurs in few Core

Areas within a larger Habitat category, the arroyo chub

will require Conservation on a landscape level as well as

on site specific considerations for the known Core Areas

as a Group 2 species.

Objective 2: Include within the MSHCP Conservation Area, the

suitable Core Areas for the arroyo chub in the

Santa Ana watershed. Conserve the natural river

bottom and banks, including the adjacent upland

Habitat where available to provide shade and

suitable microclimate conditions (e.g., alluvial

terraces, riparian vegetation) of the Santa Ana

River from the Orange County and Riverside

County line to the upstream boundary of the Plan

Area.

Objective 3: Include within the MSHCP Conservation Area, the

suitable Core Areas and available adjacent Habitat

for the arroyo chub in the Santa Margarita

watershed. Conserve the natural river and or

creek bottom and banks up to an elevation of 400

meters in the reach of the Santa Margarita River

in the Plan Area, and in De Luz Creek and its

tributary downstream to the County line, in upper

Sandia Creek downstream to the County line, in

Murrieta Creek from Winchester Road to near its

confluence with the Santa Margarita River, in

Cole Creek between its confluence with Murrieta

Creek and the boundary of Conservancy property

and in Temecula Creek from Long (Smith)

Canyon just below the falls near the County line

downstream to a concrete drop structure at

Highway 79 (upstream of Vail Lake).

Objective 4: Within the MSHCP Conservation Area, the

Reserve Managers responsible for the areas

identified in the Santa Margarita watershed will

assess the range of chub movement in the

watershed and the need for connectivity and

identify measures to restore connectivity to be

implemented as feasible.

Objective 5: Within the MSCHP Conservation Area, the

Reserve Managers responsible for the areas

identified in Objectives 2 and 3 will assess

threats to the chub from degraded Habitat (e.g.,

within the MSHCP Conservation Area. All

of the known and potential locations,

refugia, and spawning areas are included

within the MSHCP Conservation Area. In

addition, Objectives 4 and 5 will provide

assessment of barriers and threats to the

arroyo chub by the Reserve Managers and

shall identify measures to be implemented

if feasible.

with the Plan. A total of 10 acres (3

percent) of the open water Habitat

within the Santa Ana River will be

outside the Criteria Area and

Public/Quasi-Public designations.

These open water areas are currently

unsuitable areas of isolated ponds that

are not connected to the Santa Ana

River but are located within the area

analyzed for Conservation of this

species. Other upland and adjacent

areas within the Santa Ana River

watershed that are not conserved

include adjacent Habitat within the

Green River Golf Club, an upland area

within the Silver Lakes areas and

upland area between Mission

Boulevard and Rancho Jurupa Park

where the adjacent Habitat area

narrows. None of the stream channel

reaches of the Santa Ana River are

outside of the MSHCP Conservation

Area. None of the open water or

emergent vegetation within the Santa

Margarita River and its arroyo chub

occupied tributaries is located outside

the Criteria Area and Public/Quasi-

Public designations. Other upland and

adjacent areas within the Santa

Margarita River watershed that are not

conserved include adjacent Habitat

within De Luz Creek which averages

narrower than the 600-foot area

analyzed for Conservation. This

drainage averages approximately 380

feet in width within the MSHCP

Conservation Area. De Luz Creek

drainage is conserved, however the

buffer of upland Habitat is narrower

than most of the other drainages

within which the arroyo chub occurs.

chub; and identify and implement Habitat Conservation

measures to protect these critical areas from degradation due to

flood control and water Conservation operations. The

management plan will also include monitoring to assess current

range of chub movement within the Santa Margarita River

watershed and assess the need for connectivity within the

portion of the watershed in the Plan Area and implement

measures to restore connectivity if needed. Reserve Managers

will enhance and/or create Habitat for the chub to appropriate

conditions for spawning, foraging and refugia in both the Santa

Ana River and Santa Margarita River watersheds. Reserve

Managers will identify and protect spawning sites and monitor

annually each of the Core Areas in order to obtain estimates of

recruitment success. Enhancement measures will include

removal of exotic species, the creation of stream meanders,

pool-riffle complexes and reestablishment of native riparian

vegetation. Existing flood control structures will be evaluated for

need and modified as possible and as the opportunity arises to

improve fish Habitat. Within the Santa Ana River, enhancement

measures will be concentrated in the area down stream of

Mission Boulevard to the Riverside/Orange county line to reduce

Habitat favorable to non-native species, thereby reducing

predatory and competitive pressure on the chub. Reserve

Managers will conduct or cooperate with Federal, state and local

agencies in a bullfrog and non-native fish species eradication

program within the Santa Ana River and Santa Margarita River

watersheds. Fishes to be eradicated include channel catfish,

carp, largemouth bass, green sunfish, bullhead, tilapia, and

mosquitofish. This program will include the development of fish

barriers at sources of non-native species (e.g., Prado ponds or

Evans Lake) and the active removal of non-native fish through

mechanical means (e.g., gill nets, trapping, etc.). Reserve

Managers responsible for the areas identified in the Santa

Margarita Margarita watershed will assess the range of arroyo

chub movement in the watershed and the need for connectivity

and identify measures to restore connectivity to be implemented

as feasible.

Page 39: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-39

reduced water quality, loss of Habitat, presence

of non-native predators and vegetation); identify

areas of the watershed that are necessary to

successful spawning of the chub, identify areas

for creation of stream meanders, pool riffle

complexes and reestablishment of native riparian

vegetation as appropriate and feasible and

identify and implement management measures to

address threats and protect critical areas.

None of the Core Areas, spawning

areas, dispersal, or refugia areas are

outside of the MSHCP Conservation

Area for either watershed. It should be

noted that wetland Habitats located

outside the MSHCP Conservation Area

would be subject to the Protection of

S p e c i e s A s s o c i a t e d w i t h

Riparian/Riverine Areas and Vernal

Pools policy presented in Section

6.1.2 of the MSHCP, Volume I.

The Incidental Take of the chub is

difficult to quantify because larva and

adults are quite small in body sizes,

finding a dead or impaired specimen is

unlikely, the species occurs in Habitat

that make detection difficult and

losses may be masked by fluctuations

in abundance and distribution during

the life of the permit.

Santa Ana sucker

(Catastomus santaanae)

3 The Santa Ana sucker is narrowly distributed at few

locations within the Plan Area. Although the preferred

Habitat, open water and emergent vegetation occurs in

numerous areas within the Plan Area, suckers are

concentrated within 5 to 10 miles of the Santa Ana River

(between the Riverside/San Bernardino County line and

Van Buren Boulevard) and disperse into more marginal

Habitats (between Van Buren and Prado Dam). There are

suckers present below Prado Dam, however this area is

probably a sink because the dam is a barrier to upstream

migration. The Santa Ana sucker has specific Habitat

requirements and conditions within the larger riverine

Habitat within which it occurs. Because it requires

specific Habitat conditions, occurs in few locations within

a larger Habitat category, and occurs in low densities, the

Santa Ana sucker will require Conservation on a

landscape level, with site specific considerations and

management at the known locations and thus has been

identified as a Group 3 species.

Objective 1: Include within the MSHCP Conservation Area

3,480 acres of the suitable Habitat for the Santa

Ana sucker including the Santa Ana River within

the natural river bottom and banks.

Objective 2: Include within the MSHCP Conservation Area the

Core Areas upstream of River Road, between

River Road and Prado Dam, and downstream of

Prado Dam; the known spawning areas at

Sunnyslope Creek and within the area just below

Mission Boulevard upstream to the Rialto Drain;

and refugia and dispersal areas including the

Market Street Seep, Mount Rubidoux Creek, Anza

Park Drain, Arroyo Tequesquite, Hidden Valley

Drain, and Evans Lake Drain.

Objective 3: Include within the MSHCP Conservation Area the

natural river bottom and banks of the Santa Ana

River from the Orange County and Riverside

County line to the upstream boundary of the Plan

Area, including the adjacent upland Habitat,

Conservation for this species will be

achieved by inclusion of at least 3,480

acres of suitable Conserved Habitat

including the occupied Habitat (water and

freshwater marsh) and adjacent buffer and

streambank (includes a variety of Habitats)

within the MSHCP Conservation Area. All

of the known and potential refugia and

spawning areas are included within the

MSHCP Conservation Area. In addition,

Objectives 4 and 5 will provide

assessment of barriers and threats to the

Santa Ana sucker by the Reserve

Managers and will identify measures to be

implemented if feasible.

The Incidental Take of the sucker is

difficult to quantify because larva and

adults are quite small in body sizes,

finding a dead or impaired specimen is

unlikely, the species occurs in Habitat

that make detection difficult and

losses may be masked by fluctuations

in abundance and distribution during

the life of the permit.

About 390 acres of potential Habitat

for the Santa Ana sucker, including the

preferred Habitat and the Habitat

adjacent to the channel, will be outside

t h e C r i t e r i a A r e a a n d

Public/Quasi-Public designations, or

about 10 percent of the total potential

Habitat. A total of 10 acres (3

percent) of the open water Habitat that

is potentially occupied by the Santa

Ana sucker will be outside the Criteria

None 8 General Management Measure 4. Reserve Managers will

conduct, or cooperate with Federal, state and local agencies in

a bullfrog and non-native fish species eradication program within

the Santa Ana River. Fishes to be eradicated include channel

catfish, carp, largemouth bass, green sunfish, bullhead, tilapia,

and mosquitofish. This program will include the development of

fish barriers at sources of non-native species (e.g., Prado ponds

or Evans Lake) and the active removal of non-native fish through

mechanical means (e.g., gillnets, trapping, etc.). Reserve

Managers will prepare a monitoring plan to assess extent of

sucker movement within the Santa Ana River. Within the

MSHCP Conservation Area, current migration barriers to the

sucker include Prado Dam and culverts immediately below River

Road Bridge. The management plan will assess the need for

population connectivity within the Santa Ana River and

implement measures to remove barriers. Reserve Managers will

conserve the natural river bottom and banks and adjacent

Habitats which provide shade and suitable microclimate

conditions (e.g., alluvial terraces, riparian vegetation) of the

Santa Ana River with a minimum of 0.5 mile upstream of the

confluence of each of the tributaries to the Santa Ana River

Page 40: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-40

where available, to provide shade and suitable

microclimate conditions (e.g., alluvial terraces,

riparian vegetation).

Objective 4: Within the MSHCP Conservation Area, the

Reserve Managers responsible for the areas

identified in Objectives 2 and 3 will assess

barriers to sucker movement and the need for

connectivity and identify measures to restore

connectivity to be implemented as feasible.

Objective 5: Within the MSHP Conservation Area, the Reserve

Managers responsible for the areas identified in

Objectives 2 and 3 will assess threats to the

sucker from degraded Habitat (e.g., reduced

water quality, loss of Habitat, presence of

non-native predators and vegetation); identify

areas of the watershed that are necessary to

successful sucker spawning, identify areas for

creation of stream meanders, pool riffle

complexes and reestablishment of native riparian

vegetation as appropriate and feasible and

identify and implement management measures to

address threats and protect critical areas.

Area and Public/Quas i-Public

designations. These open water areas

are currently unsuitable areas of

isolated ponds that are not connected

to the Santa Ana River but are located

within the area analyzed for

Conservation of this species. Other

upland and adjacent areas that are not

conserved include adjacent Habitat

within the Green River Golf Club, an

upland area within the Silver Lakes

areas and upland area between

Mission Boulevard and Rancho Jurupa

Park where the adjacent Habitat area

narrows. None of the stream channel

reaches of the Santa Ana River are

outside of the MSHCP Conservation

Area. None of the Core population

areas, spawning areas, dispersal, or

refugia areas are outside of the

MSHCP Conservation Area. It should

be noted that wetland Habitats located

outside the MSHCP Conservation Area

would be subject to the Protection of

S p e c i e s A s s o c i a t e d w i t h

Riparian/Riverine Areas and Vernal

Pools policy presented in Section

6.1.2 of the MSHCP, Volume I.

between the Riverside/San Bernardino County line and the

Riverside/Orange County line. Tributaries include Sunnyslope

Creek, Mount Rubidoux Creek, Arroyo Tequesquite, Anza Park

Drain, Evans Lake Drain, Temescal Creek and Aliso Creek.

Reserve Managers will maintain or improve existing water quality

and flow levels in the Santa Ana River by the use and

enforcement of current or better water quality standards and at

a minimum maintenance of existing flows. Permitted activities

must maintain current water quality standards and flows.

Reserve Managers will enhance and/or create Habitat for the

sucker to appropriate conditions for spawning, foraging and

refugia within the Santa Ana River and its tributaries as directed

in the management plan. Enhancement measures will include

control of exotic plant species, the creation of stream meanders,

pool-riffle complexes and reestablishment of native riparian

vegetation. Enhancement measures will be concentrated in the

area between Mission Boulevard and the Riverside/Orange

county line to reduce Habitat favorable to non native species,

thereby reducing predatory and competitive pressure on the

sucker. Reserve Managers will protect and manage the core

population areas upstream of River Road, between River Road

and Prado Dam, and downstream of Prado Dam, the known

spawning areas at Sunnyslope Creek and within the area just

below Mission Boulevard upstream to the Rialto Drain and

refugia and dispersal areas including the Market Street Seep,

Mount Rubidoux Creek, Anza Park Drain, Arroyo Tequesquite,

Hidden Valley Drain, and Evans Lake Drain. Reserve Managers

will identify and implement steps to reduce the turbidity that

currently affect the water quality below the Prado Dam by

conducting a sediment transport study on the Santa Ana River

in cooperation with other Federal, local and state agencies.

Reserve Managers responsible for the areas identified in

Objectives 2 and 3 of the Species Account will assess barriers

to sucker movement and the need for connectivity and identify

measures to restore connectivity to be implemented as feasible.

Reserve Managers will conduct, or cooperate with Federal, state

and local agencies in, a bullfrog and non-native fish species

eradication program within the Santa Ana River. Fishes to be

eradicated include channel catfish, carp, largemouth bass, green

sunfish, bullhead, tilapia, and mosquitofish. This program will

include the development of fish barriers at sources of non-native

Page 41: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-41

species (e.g., Prado ponds or Evans Lake) and the active

removal of non-native fish through mechanical means (e.g.,

gillnets, trapping, etc.).

AMPHIBIANS

arroyo toad

(Bufo californicus)

3 The arroyo toad has narrow Habitat requirements and

limited distribution within the Plan Area, typically being

restricted to the middle reaches of third order streams.

Currently, the known distribution of arroyo toads within

the Plan Area include Temecula Creek, Arroyo Seco

Creek, Tenaja Creek, Los Alamos Creek, San Jacinto

River, Bautista Creek, and Wilson Creek. These areas

have also been modeled as key populations and Habitat

for this species. Primary Habitat for this species includes

suitable riparian Habitat with secondary Habitats including

adjacent upland areas. Because the arroyo toad requires

very specific breeding Habitat conditions, only occurs

within a few locations, and uses a well-defined Habitat

that is narrowly distributed, this species will require site

specific considerations, protection of primary breeding

Habitat and adjacent upland areas, and species-specific

Conservation measures.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for arroyo

toad will be conducted as part of the project review

process for public and private projects within the

amphibian species survey area where suitable Habitat is

present (see Amphibian Species Survey Area Map, Figure

6-3 of the MSHCP, Volume I). Arroyo toad located as a

result of survey efforts shall be conserved in accordance

with procedures described within Section 6.3.2, MSHCP,

Volume 1.

Objective 1: Include within the MSHCP Conservation Area at

least 1,602 acres of suitable breeding Habitat

(riparian scrub, woodlands and forests, meadows

and marshes, and alluvial fan scrub Habitat).

Suitable breeding Habitat for the arroyo toad

includes low-gradient (usually less than 2

percent), sandy stream reaches that often

(although not necessarily annually) support

shallow pools with little current that persist for at

least three months during the spring and

summer.

Objective 2: Include within the MSHCP Conservation Area at

least nine Core Areas which include portions of

San Juan Creek (1,414 acres), Los Alamos Creek

(7,898 acres), San Jacinto River (3,096 acres),

Indian Creek (5,973 acres), Bautista Creek (3,148

acres), Wilson Creek (2,631 acres), Temecula

Creek (5,663 acres), Arroyo Seco (2,798 acres),

and Vail Lake (1,017 acres)(as discussed below).

Objective 3: Include within the MSHCP Conservation Area at

least 7,005 acres of necessary suitable upland

Habitat as defined within the species account,

adjacent to San Juan Creek, San Jacinto River,

Indian Creek, Bautista Creek, Wilson Creek,

Temecula Creek, Arroyo Seco, and Vail Lake,

including agricultural lands, woodlands and

forests, chaparral, coastal sage scrub, and

grasslands.

Objective 4: Surveys for arroyo toad will be conducted as part

of the project review process for public and

private projects within the amphibian species

survey area where suitable Habitat is present

(see Amphibian Species Survey Area Map, Figure

6-3 of the MSHCP, Volume I). Arroyo toad

Conservation for the arroyo toad will be

achieved by the inclusion of at least 8,607

acres of suitable Conserved breeding and

adjacent upland Habitat within nine Core

Areas which are composed of streams or

rivers with adjacent uplands within the

MSHCP Conservation Area. The Core

Areas are not necessarily connected to

one another, but potential Linkages exist.

In addition, surveys for arroyo toad will be

conducted as part of the project review

process for public and private projects

within the amphibian species survey area

where suitable Habitat is present (see

Amphibian Species Survey Area Map,

Figure 6-3 of the MSHCP, Volume I).

Arroyo toad locations identified as a result

of survey efforts will be conserved in

accordance with the procedures described

in Section 6.3.2 of the MSHCP, Volume I.

Within the MSHCP Conservation Area,

Reserve Managers will maintain or, if

feasible, restore ecological processes

within occupied Habitat and suitable new

areas, given existing constraints and

activities covered under the MSHCP. At a

minimum, these areas will include

portions of San Juan Creek, San Jacinto

River, Indian Creek, Bautista Creek, Wilson

Creek, Temecula Creek, Arroyo Seco, and

Vail Lake, which are important to the

arroyo toad. Within the MSHCP

Conservation Area, Reserve Managers will

maintain breeding populations at a

minimum of 80 percent of the conserved

breeding locations as measured by the

presence/absence of juveniles toads,

Approximately 296 acres (16 percent)

of occupied and modeled suitable

breeding Habitat and 2,321 (25

percent) of occupied and modeled

suitable upland Habitat adjacent to

breeding Habitat (2,617 acres total [23

percent]), would be located outside

the MSHCP Conservation Area, and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Outlying areas will be

subject to surveys and protection.

Because the location of these

occupied areas is yet unknown, the

following gaps are identified. Gaps in

modeled suitable Habitat coverage

occur within the San Jacinto and

Santa Margarita Watershed areas.

Gaps within the San Jacinto area

primarily occur on Forest Service and

Bureau of Land Management

in-holdings along Bautista Creek

(Sections 27, 26, 34, and 35 [T.5S.,

R.1W.] and Section 1 [T.6S., R.1E.])

and on forest in-holdings (Sections

17, 18, 19, ad 20 [T.5S., R.2E.] and

Section 13 [T.5S., R.1.E.]) and other

areas (Sections 10, 11, 14, and 15

[T.5S., R.1E.]) along the San Jacinto

River. Gaps within the Santa

Margarita Watershed area primarily

occur on forest service in-holdings

along Arroyo Seco Creek in the vicinity

of Crosley Homestead (Sections 25

and 36 [T.8S., R.1W.], Sections 1 and

2 [T.9S., R1W.], and Section 31

[T.8S., R.1E.]) and other areas along

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 1 to 5 General Management Measure 4. Reserve Managers will

maintain ecological processes within occupied Habitat and

suitable new areas within the MSHCP Conservation Area, given

existing constraints and activities covered under the MSHCP. At

a minimum, these areas will include portions of San Juan Creek,

San Jacinto River, Tenaja Creek, Los Alamos Creek, Indian

Creek, Bautista Creek, Wilson Creek, Temecula Creek, Arroyo

Seco, and Vail Lake, which are important to the arroyo toad. The

ecological processes and breeding populations will be

maintained as a result of management measures with regard to

alteration of hydrology and flood control, non-native plant

species, farming, mining, grazing, recreation, and predation.

Page 42: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-42

locations identified as a result of survey efforts

shall be conserved in accordance with the

procedures described in Section 6.3.2 of the

MSHCP, Volume I.

Objective 5: Within the MSHCP Conservation Area, Reserve

Managers shall maintain or, if feasible, restore

ecological processes within occupied Habitat and

suitable new areas within the Criteria Area, given

existing constraints and activities covered under

the MSHCP. At a minimum, these areas will

include portions of San Juan Creek, San Jacinto

River, Indian Creek, Bautista Creek, Wilson Creek,

Temecula Creek, Arroyo Seco, and Vail Lake,

which are important to the arroyo toad.

NOTE: Maintaining or, if feasible, restoring

ecological processes within the MSHCP

Conservation Area may include: allowing for

natural dynamic fluvial processes of flooding and

Habitat regeneration, and possibly fire, to

maintain healthy alluvial fan Habitat, and other

riparian Habitat; careful planning and design of

existing and future authorized used that may

affect natural processes such as flood control,

water Conservation, and sand and gravel mining;

controlling or removing known threats from

important arroyo toad creeks and rivers (i.e.,

portions of San Juan Creek, San Jacinto River,

Indian Creek, Bautista Creek, Wilson Creek,

Temecula Creek, Arroyo Seco, and Vail Lake),

including, but not limited to, eliminating

non-native fishes and bullfrogs; restoring natural

hydrologic processes; limiting livestock access to

streams, creeks, ponds, and pools; limiting

recreational use of certain areas; altering water

use; controlling farming and agricultural practices

within and adjacent to occupied Habitat or

upstream of occupied Habitat; controlling weed

abatement, discing, and pesticide/herbicide use

adjacent and upstream of occupied Habitat, and;

removing exotic vegetation.

tadpoles, or egg masses across any five

consecutive years. Furthermore, the Plan

Area is contiguous with suitable Habitat in

eastern Riverside, San Bernardino,

Orange, and San Diego counties.

Temecula Creek in the Aguanga Valley

(Sections 19, 28, 29, 33, and 34

[T.8S., R.1E.]) although the main

creek areas are included with

minimum 1,000-foot buffers.

Page 43: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-43

Objective 6: Within the MSHCP Conservation Area, maintain

breeding populations at a minimum of 80 percent

of the conserved breeding locations as measured

by the presence/absence of juveniles toads

(roughly 10 to 30 mm [Sweet 1993]), tadpoles,

or egg masses across any 5 consecutive years.

California red-legged frog

(Rana aurora draytonii)

3 The California red-legged frog has narrow Habitat

requirements and limited distribution within the Plan Area,

typically being restricted to the lowland streams,

wetlands, and pools where dense vegetation surrounds

relatively deep water with small (<300 km2) watersheds.

They also require adjacent upland areas to move between

suitable breeding sites. Currently, the known distribution

of red-legged frogs within the Plan Area is limited to the

Santa Rosa Plateau (Cole Creek). Suitable plateau and

drainage Habitat and connections to other suitable Habitat

in the southern Santa Ana Mountains has been delineated

for this species. Primary breeding Habitat for this species

includes suitable wetland Habitat with secondary Habitats

including adjacent upland areas. Because the red-legged

frog requires very specific breeding Habitat conditions,

only occurs within a single location, and uses a well

defined Habitat that is narrowly distributed, this species

will require site specific considerations, protection of

primary breeding Habitat and adjacent upland areas, and

species-specific Conservation measures.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for California

red-legged frog will be conducted as part of the project

review process for public and private projects within the

amphibian species survey area where suitable Habitat is

present (see Amphibian Species Survey Area Map, Figure

6-3 of the MSHCP, Volume I). California red-legged

frogs located as a result of survey efforts shall be

conserved in accordance with procedures described

within Section 6.3.2, MSHCP, Volume 1.

Objective 1: Include within the MSHCP Conservation Area at

least 766 acres of occupied and historic breeding

Habitat (riparian scrub, woodlands and forests,

open water, and playas and vernal pools).

Breeding Habitat for the red-legged frog includes

cool, deep pools, lowland streams, and other

wetlands where dense vegetation surrounds

relatively them. These areas generally have a

small (<300 km2) watershed.

Objective 2: Include within the MSHCP Conservation Area the

Core Areas in the Santa Rosa Plateau (9,028

acres) and the southern Santa Ana Mountains

(30,964 acres), and the intervening lands which

shall provide movement between the Core Areas.

The intervening lands are primarily situated

around Avenoloca Mesa, Redonda Mesa, slopes

and foothills of Squaw Mountain, and Alamos

Canyon.

Objective 3: Include within the MSHCP Conservation Area at

least 39,147 acres of upland Habitat adjacent to

occupied or suitable breeding Habitat. These

areas are situated around the Santa Rosa

Plateau, southern Santa Ana Mountains, and

intervening lands including Avenoloca Mesa,

Redonda Mesa, slopes and foothills of Squaw

Mountain, Alamos Canyon and environs. Upland

Habitats include woodlands and forests,

chaparral, coastal sage scrub, and grasslands.

Objective 4: Surveys for this species will be conducted as part

of the project review process for public and

private projects within the amphibian species

survey area where suitable Habitat is present

Conservation for the California red-legged

frog will be achieved by the inclusion of at

least 39,913 acres of suitable Conserved

primary breeding Habitat and Conserved

secondary upland Habitat within 2 Core

Areas which are composed of large blocks

of Habitat within the MSHCP Conservation

Area. The Core Areas are connected by a

large interstitial area which has small

drainages and large upland areas which

will need to be protected as they are

determined to be important to red-legged

frog. In addition, surveys for this species

will be conducted as part of the project

review process for public and private

projects within the amphibian species

survey area where suitable Habitat is

present (see Amphibian Species Survey

Area Map, Figure 6-1 of the MSHCP,

Volume I). Red-legged frog locations

identified as a result of survey efforts shall

be conserved in accordance with

procedures described within Section

6.3.2, MSHCP, Volume 1. Within the

MSHCP Conservation Area, Reserve

Managers shall maintain or, if feasible,

restore ecological processes within

occupied Habitat and suitable new areas.

At a minimum, these areas will include the

Santa Rosa Plateau, San Mateo

Wilderness area of the Cleveland National

Forest, Squaw Mountain, Avenacola Mesa

Redondo Mesa, Alamos Canyon, and

surrounding areas. Within the MSHCP

Conservation Area, Reserve Managers

Incidental Take of the California

red-legged frog is difficult to quantify

due to a relative lack of species

occurrence data. However, the

maximum level of Take of the

red-legged frog can be anticipated by

the loss of the number of acres of

Habitat that will become unsuitable for

this species, and individuals within

these areas will be subject to

Incidental Take consistent with the

Plan. Approximately 47 acres (6

percent) of probable suitable primary

breeding Habitat and 9,371 (19

percent) of suitable secondary upland

movement Habitat (9,418 acres total

[19 percent]), would be located

outside the MSHCP Conservation

Area.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 1** General Management Measure 4. Reserve Managers will

maintain ecological processes within occupied Habitat and

appropriate new areas within the MSHCP Conservation Area. At

a minimum, these areas will include the Santa Rosa Plateau, San

Mateo Wilderness area of the Cleveland National Forest, Squaw

Mountain, Avenacola Mesa Redondo Mesa, Alamos Canyon, and

surrounding areas. Reserve Managers will determine if

successful reproduction is occurring within the MSHCP

Conservation Area as measured by the presence/absence of

tadpoles, egg masses, or juvenile frogs once a year for the first

5 years after permit issuance and then as determined by the

Reserve Management Oversight Committee (but not less

frequently than every 8 years). The ecological processes and

breeding population(s) will be maintained as a result of

management measures with regard to alteration of hydrology

and flood control, non-native plant species, mining, human

collection, and predation.

Page 44: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-44

(see Amphibian Species Survey Area Map, Figure

6-3 of the MSHCP, Volume I). Red-legged frog

locations identified as a result of survey efforts

shall be conserved in accordance with

procedures described within Section 6.3.2,

MSHCP, Volume I.

Objective 5: Within the MSHCP Conservation Area, Reserve

Managers shall maintain or, if feasible, restore

ecological processes within occupied Habitat and

suitable new areas within the Criteria Area. At a

minimum, these areas will include the Santa

Rosa Plateau, San Mateo Wilderness area of the

Cleveland National Forest, Squaw Mountain,

Avenacola Mesa Redondo Mesa, Alamos

Canyon, and surrounding areas.

Objective 6: Within the MSHCP Conservation Area, determine

if successful reproduction is occurring as

measured by the presence/absence of tadpoles,

egg masses, or juvenile frogs once a year for the

first five years after permit issuance and then as

determined by the Reserve Management

Oversight Committee as described in Section 6.6,

MSHCP Volume I (but not less frequently than

every 8 years).

shall determine if successful reproduction

is occurring as measured by the

presence/ absence of tadpoles, egg

masses, or juvenile frogs once a year for

the first 5 years after permit issuance and

then as determined by the Reserve

Management Oversight Committee (but

not less frequently than every 8 years).

Furthermore, the Area Plan is contiguous

with suitable Habitat in Orange and San

Diego counties.

coast range newt

(Taricha tarosa tarosa)

3 The coast range newt has narrow Habitat requirements

and limited distribution within the Plan Area, typically

being restricted to "pools and runs" stream configurations

and adjacent upland Habitats within the Santa Ana

Mountains Bioregion. Currently, the known distribution of

coast range newt within the Plan Area is restricted to the

Santa Ana Mountains. Because the coast range newt

requires very specific breeding Habitat conditions, only

occurs within a few locations, and uses a well defined

Habitat that is narrowly distributed, this species will

require site specific considerations, protection of primary

breeding Habitat and adjacent upland areas, and

species-specific Conservation measures.

Objective 1: Include within the MSHCP Conservation Area at

least 8,441 acres of primary breeding Habitat

(playa and vernal pools, riparian scrub,

woodland, and forest, and water) within the Santa

Ana Mountains Bioregion. Within the greater

Habitat categories, coast range newt breeding

activities are limited to streams and creeks which

may form "pool and runs" hydrology.

Objective 2: Include within the MSHCP Conservation Area at

least 76,579 acres of the secondary Habitat

(chaparral, coastal sage scrub, grassland,

Riversidean alluvial scrub, and oak woodlands

and forests) within the Santa Ana Mountains

Conservation for the coast range newt will

be achieved by the inclusion of at least

8,441 acres of suitable primary Conserved

Habitat and 76,579 acres of secondary

upland Conserved Habitat within one Core

Area (Santa Ana Mountains Bioregion)

within the MSHCP Conservation Area. The

Core Area provides connections between

seasonally preferred Habitats. In addition,

the MSHCP Plan will maintain a 100-meter

buffer around breeding Habitat areas

identified above; maintain or, if feasible,

restore ecological processes within

occupied Habitat and suitable new areas

Incidental Take of the coast range

newt is difficult to quantify due to our

limited knowledge of the species

distribution within the Plan Area, and

the fact that losses may be masked by

fluctuations in abundance and

distribution during the life of the

permit. However, the maximum level

of Take of the coast range newt can

be anticipated by the loss of the

number of acres of Habitat that will

become unsuitable for this species

and individuals within these areas will

be subject to Incidental Take

None 8 1** General Management Measure 4. Reserve Managers will

maintain ecological processes within occupied Habitat and

appropriate new areas within the MSHCP Conservation Area. At

a minimum, these areas will include the Santa Rosa Plateau, San

Mateo Wilderness area of the Cleveland National Forest, Squaw

Mountain, Avenacola Mesa Redondo Mesa, Alamos Canyon, and

surrounding areas. Reserve Managers will determine if

successful reproduction is occurring within the MSHCP

Conservation Area as measured by the presence/absence of

tadpoles, egg masses, or juvenile frogs once a year for the first

5 years after permit issuance and then as determined by the

Reserve Management Oversight Committee (but not less

frequently than every 8 years). The ecological processes and

breeding population(s) will be maintained as a result of

Page 45: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-45

Bioregion. Secondary Habitat is limited to a 2 km

buffer around streams and creeks.

Objective 3: A 100-meter buffer, where possible, will be

established around emergent vegetation areas

identified in Objective 1 as they are incorporated

into the MSHCP Conservation Area for water

quality purposes.

Objective 4: Within the MSHCP Conservation Area, Reserve

Managers shall maintain or, if feasible, restore

ecological processes within occupied Habitat and

suitable new areas within the MSHCP

Conservation Area. At a minimum, these areas

will include creeks, streams, ponds, and other

wetland Habitat in the Cleveland National Forest

(Santa Ana Mountains Bioregion) and Santa Rosa

Plateau (includes portions of Cole Creek).

Objective 5: Within the MSHCP Conservation Area, maintain

occupancy of at least 75 percent of the occupied

coast range newt Habitat and determine if

successful reproduction is occurring within the

MSHCP Conservation Area as measured by the

presence/absence of larvae or egg masses once

a year for the first five years after permit issuance

and then as determined by the Reserve

Management Oversight Committee as described

in Section 6.6, MSHCP Volume I (but not less

frequently than every 8 years).

within the MSHCP Conservation Area;

minimally these areas will include creeks,

streams, ponds, and other wetland Habitat

in the Cleveland National Forest (Santa

Ana Mountains Bioregion) and Santa Rosa

Plateau (includes portions of Cole Creek);

and maintain occupancy of at least 75

percent of the occupied Coast range newt

Habitat and determine if successful

reproduction is occurring within the

MSHCP Conservation Area as measured

by the presence/absence of larvae or egg

masses once a year for the first five years

after permit issuance and then as

determined by the Reserve Management

Oversight Committee. The current

population size and distribution of the

coast range newt is unknown.

Furthermore, the Plan Area is contiguous

with suitable Habitat in Orange and San

Diego counties.

c o n s i st e n t w i t h t he P lan.

Approximately 4,011 acres (32

percent) of potential primary breeding

Habitat and 32,069 acres (30 percent)

of secondary upland Habitat for the

coast range newt would be outside the

MSHCP Conservation Area.

management measures with regard to alteration of hydrology

and flood control, non-native plant species, mining, human

collection, and predation.

mountain yellow-legged

frog

(Rana mucosa)

3 The mountain yellow-legged frog has narrow Habitat

requirements and limited distribution within the Plan Area,

typically being restricted to streams, creeks, and small

pools in the San Jacinto Mountains that contain

dependable, year-round quantities of cool water. Within

the Plan Area, yellow-legged frogs have been recently

observed (i.e., within the last 7 years) only in upper

reaches and tributaries of the North Fork of the San

Jacinto River. Specific locations include: Dark Canyon,

Hall Canyon, Fuller Mill Creek, and the North Fork above

Objective 1: Include within the MSHCP Conservation Area at

least 335 acres of primary breeding Habitat

above 370 meters (riparian scrub woodland and

forest) within the San Jacinto Mountains.

Primary breeding Habitat for the yellow-legged

frog includes aquatic Habitats with gently sloping

shore margins that receive some sunlight, and

clear cool water.

Objective 2: Include within the MSHCP Conservation Area the

Conservation for the mountain

yellow-legged frog will be achieved by the

inclusion of at least 335 acres of suitable

Conserved primary and 32,399 acres of

Conserved secondary Habitat within one

Core Area. In addition, surveys for this

species will be conducted as part of the

project review process for public and

private projects within the amphibian

species survey area where suitable Habitat

Approximately 138 acres (29 percent)

of suitable primary breeding Habitat

and 11,459 (26 percent) of potentially

suitable secondary Habitat (11,597

acres total [26 percent]), would be

located outside the MSHCP

Conservation Area and individuals

within these areas will be subject to

Incidental Take consistent with the

Plan.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 1** General Management Measure 4. Reserve Managers will

maintain ecological processes (with particularly emphasis on

removing non-native predatory fish and bullfrogs) within

occupied Habitat and suitable new areas within the MSHCP

Conservation Area. At a minimum, these areas will include

areas above 370 meters at the North Fork of the San Jacinto

River (including Dark Canyon), Fuller Mill Creek, and Hall Canyon

above Lake Fulmor. Reserve Managers will maintain successful

reproduction within the MSHCP Conservation Area as measured

by the presence/absence of tadpoles, egg masses, or juvenile

Page 46: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-46

Highway 74. Historically, yellow-legged frogs were also

observed in Strawberry Creek, Indian Creek, Black

Mountain Creek, and lower sections of the North Fork of

the San Jacinto River. Because the mountain yellow-

legged frog presently occurs at only a few locations in

very low numbers, requires specific breeding Habitat

conditions, and is narrowly distributed, this species will

require site-specific considerations, protection of primary

breeding Habitat and adjacent upland areas, and species-

specific Conservation measures.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for mountain

yellow-legged frog will be conducted as part of the project

review process for public and private projects within the

amphibian species survey area where suitable Habitat is

present (see Amphibian Species Survey Area Map, Figure

6-3 of the MSHCP, Volume I). Mountain yellow-legged

frog located as a result of survey efforts shall be

conserved in accordance with procedures described

within Section 6.3.2, MSHCP, Volume 1.

Core Areas above 370 meters at the North Fork of

the San Jacinto River (including Dark Canyon),

Hall Canyon, and Fuller Mill Creek and other

perennial water streams in the San Jacinto

Mountains.

Objective 3: Include within the MSHCP Conservation Area at

least 32,399 acres of the secondary wooded

Habitat above 370 meters (oak woodlands and

forests and and montane coniferous forest)

within the North Fork of the San Jacinto River

(including Dark Canyon), Hall Canyon, and Fuller

Mill Creek and other perennial water streams in

the San Jacinto Mountains.

Objective 4: Surveys for this species will be conducted as part

of the project review process for public and

private projects within the amphibian species

survey area where suitable Habitat is present

(see Amphibian Species Survey Area Map, Figure

6-3 of the MSHCP, Volume I). Mountain

yellow-legged frog localities identified as a result

of survey efforts shall be conserved in

accordance with procedures described within

Section 6.3.2, MSHCP, Volume 1.

Objective 5: Within the MSHCP Conservation Area, Reserve

Managers shall maintain or, if feasible, restore

ecological processes (with particular emphasis

on removing non-native predatory fish and

bullfrogs) within occupied Habitat and suitable

new areas within the Criteria Area. At a

minimum, these areas will include areas above

370 meters at the North Fork of the San Jacinto

River (including Dark Canyon), Fuller Mill Creek,

and Hall Canyon above Lake Fulmor.

Objective 6: Within the MSHCP Conservation Area, maintain

successful reproduction as measured by the

presence/absence of tadpoles, egg masses, or

juvenile frogs once a year for the first five years

is present (see Amphibian Species Survey

Area Map, Figure 6-3 of the MSHCP,

Volume I). Mountain yellow-legged frog

localities identified as a result of survey

efforts shall be conserved in accordance

with procedures described within Section

6.3.2, MSHCP, Volume 1. Within the

MSHCP Conservation Area, Reserve

Managers shall maintain or, if feasible,

restore ecological processes (with

particularly emphasis on removing

non-native predatory fish and bullfrogs)

within occupied Habitat and suitable new

areas. At a minimum, these areas will

include areas above 370 meters at the

North Fork of the San Jacinto River

(including Dark Canyon), Fuller Mill Creek,

and Hall Canyon above Lake Fulmor.

Within the MSHCP Conservation Area,

Reserve Managers shall maintain

successful reproduction as measured by

the presence/absence of tadpoles, egg

masses, or juvenile frogs once a year for

the first 5 years after permit issuance and

then as determined by the Reserve

Management Oversight Committee (but

not less frequently than every 8 years).

Furthermore, the Plan Area is contiguous

with suitable Habitat in eastern Riverside,

San Bernardino, and San Diego counties.

frogs once a year for the first 5 years after permit issuance and

then as determined by the Reserve Management Oversight

Committee (but not less frequently than every 8 years). The

ecological processes and breeding population(s) will be

maintained as a result of management measures with regard to

alteration of water quality and predation.

Page 47: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-47

after permit issuance and then as determined by

the Reserve Management Oversight Committee

as described in Section 6.6 (but not less

frequently than every 8 years).

western spadefoot

(Scaphiopus hammondii)

2 The western spadefoot population is patchily but widely

distributed throughout the Riverside Lowlands and San

Jacinto Foothills Bioregions. Primary Habitat for this

species includes suitable breeding Habitat below 1500

meters (i.e.,vernal pools or other standing water that is

free of exotic species) with secondary Habitats including

adjacent chaparral, sage scrub, grassland, and alluvial

scrub Habitats. It is assumed that this species will

respond to a landscape level of management with site-

specific requirements (e.g., vernal pools) if management

addresses the threats of increased roads (limit roads or

provide toad walls and culverts for safe dispersal), exotic

species (e.g., bass, sunfish, and bullfrogs), and

destruction of Habitat. Management of Habitat for a wide

variety of upland species such as the Stephens’ kangaroo

rat, Los Angeles pocket mouse, and a variety of vernal

pool-associated plants and invertebrates will benefit the

western spadefoot.

Objective 1: Include within the MSHCP Conservation Area

approximately 6,749 acres of primary Habitat for

the western spadefoot. Suitable primary Habitat

is limited to playas and vernal pools below 1,500

meters within chaparral, sage scrub, grassland,

and alluvial scrub Habitats.

Objective 2: Include within the MSHCP Conservation Area at

least six Core Areas at the Santa Rosa Plateau

(8,360 acres), San Jacinto River (7,680 acres),

Salt Creek (320 acres), Skunk Hollow (approx. 10

acres), and Hemet (approx. 100 acres) areas.

Conserve additional breeding Habitat in the form

of isolated pools, road ruts, or creeks at Lake

Skinner -Diamond Va l ley Lake, Lake

Mathews-Estelle Mountain, San Jacinto Wildlife

Area-Lake Perris, the Badlands, Potrero Valley,

the Banning Bench, Sage/Vail Lake, San Jacinto

Mountains, and Anza Valley.

Objective 3: Include within the MSHCP Conservation Area at

least 377,183 acres of suitable secondary Habitat

adjacent to protected primary Habitat. Suitable

secondary Habitat includes chaparral,

grasslands, sage scrub, and alluvial scrub

Habitats below 1,500 meters. These Habitats will

be preserved throughout the Plan Area in large

blocks representing all portions of the Plan Area.

The majority of Habitat Conservation will occur in

large core blocks throughout the Plan Area,

including Santa Rosa Plateau, Lake

Skinner-D iamond Val ley Lake, Lake

Mathews-Estelle Mountain, San Jacinto Wildlife

Area-Lake Perris, the Badlands, Potrero Valley,

the Banning Bench, Sage/Vail Lake,San Jacinto

Mountains, and Anza Valley. These areas are

anticipated to fulfill the remaining life history

Conservation for the western spadefoot

will be achieved by the inclusion of at least

6,749 acres of suitable primary Conserved

Habitat and 377,183 acres of suitable

secondary Habitat within the San Jacinto

Foothills and Riverside Lowlands

Bioregions below 1,500 meters within the

MSHCP Conservation Area. The Core

Areas are provided with numerous

connections of Proposed and Existing

Cores. In addition, the MSHCP Plan will

maintain (once every 8 years) successful

reproduction at 75 percent of the Core

Areas. The current population size of the

western spadefoot is unknown, but the

general distribution is, and a relatively

sizable database is present within the UCR

database. Furthermore, the Plan Area is

contiguous with suitable Habitat in eastern

Riverside, San Bernardino, Orange, and

San Diego counties.

Approximately 1,162 acres (15

percent) of potential primary Habitat

and 314,381 acres (45 percent) of

secondary Habitat for the western

spadefoot would be outside the

MSHCP Conservation Area and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Fifteen (48 percent) of

the 31 precision code "1" or "2"

records would be outside the MSHCP

Conservation Area. However of these,

2 (13 percent) are mapped within

existing agriculture and 5 (33 percent)

are located in developed or disturbed

Habitat coverages.

None 8 8 General Management Measure 4. Reserve Managers will

maintain or improve Habitat quality at all locales within the

MSHCP Conservation Area by preserving the watersheds and

hydrological processes within the vernal pools, temporary

ponds, and drainages that support the potential Habitat and by

selectively rehabilitating or revegetating all such areas that are

currently fragmented or otherwise degraded by, for instance,

infestations of exotic plants and animals. Each Reserve

Manager responsible for a Core Area identified in the Species

Account will evaluate the condition of the sites and vegetation

within the Core Areas and maintain a program to enhance and/or

create primary Habitats within the Core Areas. Reserve

Managers will maintain successful reproduction at a minimum

of 75% of the conserved breeding locations as measured by the

presence/absence of tadpoles, egg masses, or juvenile toads

once every 8 years. The hydrological processes and breeding

population(s) will be maintained as a result of management

measures with regard to alteration of hydrology, non-native plant

species, farming, mining, grazing, off-road vehicle use and

predation.

Page 48: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-48

requirements of the species including aestivating,

dispersing, and foraging Habitat.

Objective 4 : Within the MSHCP Conservation Area, maintain

successful reproduction at a minimum of 75

percent of the conserved breeding locations as

measured by the presence/absence of tadpoles,

egg masses, or juvenile toads once every 8

years.

REPTILES

Belding’s orange-throated

whiptail

(Cnemidophorus

hyperythrus beldingi)

1 The Belding's orange-throated whiptail population is

widespread throughout the Plan Area. The

orange-throated whiptail occurs in a wide variety of

Habitats but is more closely tied to coastal sage scrub

and chaparral Habitats with less than 90 percent

vegetative cover. The species is common in most areas

of the Plan Area within the central basin and foothills

areas. No specific management regimes are needed to

maintain adequate Habitat for this species, although

management of Habitat for species such as the Stephens'

kangaroo rat, San Bernardino kangaroo rat, and Los

Angeles pocket mouse may benefit the orange-throated

whiptail.

Objective 1: Include within the MSHCP Conservation Area at

least 226,313 acres of coastal sage scrub, desert

scrub, chaparral, Riversidean alluvial fan sage

scrub, and riparian scrub and woodlands within

the Riverside lowlands, San Jacinto Foothills, and

Santa Ana Mountains Bioregions below 1,040

meters. The majority of Habitat Conservation will

occur in large core blocks throughout the Plan

Area.

Objective 2: Include within the MSHCP Conservation Area at

least nine Core Areas including Santa Rosa

Plateau (8,360 acres), Lake Skinner-Diamond

Val ley Lake (29,070 acres) , Lake

Mathews-Estelle Mountain (31,180 acres), San

Jacinto Wildlife Area-Lake Perris (17,470 acres),

the Badlands (24,920 acres), Potrero Valley

(10,000 acres), the Banning Bench (9,610

acres), Sage/Vail Lake (50,000 acres), and Anza

Valley (4,290 acres) and numerous smaller

Proposed and Existing Noncontiguous Habitat

Blocks.

Conservation for the orange-throated

whiptail will be achieved by the inclusion

of at least 226,313 acres of suitable

Conserved Habitat within 9 Core Areas

which are composed of large blocks of

Habitat within the MSHCP Conservation

Area. The Core Areas are provided with

numerous connections of Proposed and

Existing Cores. In addition, the MSHCP

Plan will maintain (once every 8 years) the

continued use of 75 percent of the Core

Areas. The current population size of the

orange-throated whiptail is unknown, but

the general distribution is, and a relatively

sizable database is present within the UCR

database. Furthermore, the Plan Area is

contiguous with suitable Habitat in eastern

Riverside, San Bernardino, Orange, and

San Diego counties.

Approximately 155,483 acres (41

percent) of potential Habitat for the

orange-throated whiptail would be

outside the MSHCP Conservation Area

and individuals within these areas will

be subject to Incidental Take

c o n s i st e n t w i t h the P l a n .

Seventy-seven (55 percent) of the 140

precision code "1" or "2" records

would be outside the MSHCP

Conservation Area. However, of

these, 16 are mapped within existing

agriculture and 22 are located in

developed, disturbed land, or water

categories. The remaining 39 (51

percent) are in native Habitats.

None 8 General Management Measures 1, 3 and 4.

coastal western whiptail

(Cnemidophorus tigris

multiscutatus)

1 The coastal western whiptail population is widespread

throughout the Plan Area. The coastal western whiptail

occurs in a wide variety of Habitats including coastal sage

scrub, desert scrub, Riversidean alluvial fan scrub,

woodlands, grasslands, playas, and respective ecotones

between these Habitats. The species is common in most

areas of the Plan Area, including the fringes of urbanized

areas. Existing data suggests it may occur at all elevation

Objective 1: Include within the MSHCP Conservation Area at

least 142,117 acres of coastal sage scrub, desert

scrub, Riversidean alluvial fan scrub, woodlands,

grasslands, and playas. The majority of Habitat

Conservation will occur in large blocks within the

Plan Area.

Conservation for the western whiptail will

be achieved by the inclusion of at least

142,117 acres of suitable Conserved

Habitat within 13 Core Areas which are

composed of large blocks of Habitat within

the MSHCP Conservation Area. The Core

Areas are provided with numerous

connections of Proposed and Existing

Approximately 182,962 acres (56

percent) of potential Habitat for the

western whiptail would be outside the

MSHCP Conservation Area and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Thirty-six (67 percent)

of the 54 precision code "1" or "2"

None 8 General Management Measure 1.

Page 49: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-49

levels within the Plan Area. No specific management

regimes are needed to maintain this species, although

management of Habitat for species such as the California

gnatcatcher, Stephens' kangaroo rat, San Bernardino

kangaroo rat, and Los Angeles pocket mouse may benefit

the coastal western whiptail.

Objective 2: Include within the MSHCP Conservation Area at

least 13 Core Areas at the Santa Rosa Plateau

(8,360 acres), Lake Skinner-Diamond Valley Lake

(29,020 acres), Lake Mathews-Estelle Mountain

(31,180 acres), San Jacinto Wildlife Area-Lake

Perris (17,470 acres), the Badlands (24,920

acres), Potrero Valley (10,000 acres), the

Banning Bench (9,610 acres), Sage/Vail Lake

(50,000 acres), Anza Valley (4,290 acres), Agua

Tibia Wilderness (10,460 acres), Santa Ana

Mountain foothills (71,490 acres), Santa Ana

River (10,740 acres) , and Paloma

Valley/Hogbacks (5,050 acres).

Objective 3: Include within the MSHCP Conservation Area

Linkages between large Habitat areas, including

contiguous uplands from Estelle Mountain to

Wildomar, Gavilan Hills, San Jacinto River, Kolb

Creek/Arroyo Seco, Temecula Creek, Tucalota

Creek, Wilson Creek, Tule Creek, and San

Gorgonio Wash.

Cores. In addition, the MSHCP Plan will

maintain (once every 8 years) the

continued use of 75 percent of the Core

Areas. The current population size of the

western whiptail is unknown, but the

general distribution is, and a relatively

sizable database is present within the UCR

database. Furthermore, the Plan Area is

contiguous with suitable Habitat in eastern

Riverside, San Bernardino, Orange, and

San Diego counties.

records would be outside the MSHCP

Conservation Area. However of these,

16 (44 percent) are mapped within

existing agriculture, 6 (17 percent) are

located in developed or disturbed

Habitat coverages, and 14 (39

percent) are in chaparral, coastal sage

scrub, woodlands and forests, and

non-native grassland Habitats.

granite night lizard

(Xantusia henshawi

henshawi)

2 Granite night lizards occur in localized populations

distributed east of Interstate 215, but primarily within the

eastern portion of the Plan Area. Localized populations

are often found in flaking granite, rock outcrops, and

boulderfields, most commonly with chaparral, sage

scrub, mixed conifer forest, and oak woodland. Though

they primarily occupy these features, granite night lizards

have been documented in outlying Habitat. No specific

management regimes have been identified to maintain

adequate Habitat for this species. Because granite night

lizards occur in localized conditions and secretive and

difficult to detect, it will require some site specific

management or monitoring activities.

Objective 1: Include within the MSHCP Conservation Area at

least 297,143 acres of chaparral, sage scrub,

coniferous forest, and oak woodland in the

eastern portion of the Plan Area (east of Interstate

215). Acreage conserved will include Linkages

between conserved areas, and the rocky

outcrops, flaking granite, and boulderfields that

are a limiting Habitat feature for this species.

Objective 2: Include within the MSHCP Conservation Area at

least 9 Core Areas at the Lake Skinner-Diamond

Valley Lake (29,070 acres), San Jacinto Wildlife

Area-Lake Perris (17,470 acres), the Badlands

(24,920 acres), Potrero Valley (10,000 acres),

the Banning Bench (9,610 acres), Sage/Vail

Lake/Wilson Valley (50,000 acres), Agua Tibia

Mountains (10,460 acres), San Jacinto

Mountains (140,000 acres), and Anza Valley

(4,290 acres).

Conservation for the granite night lizard

will be achieved by the inclusion of at least

297,143 acres of suitable Conserved

Habitat within 9 Core Areas which are

composed of large blocks of Habitat

distributed throughout the MSHCP

Conservation Area and the species range

within the Plan Area. In addition, the

MSHCP Plan will maintain (once every 8

years) the continued use of 75 percent of

the Core Areas. Although the current

population size of the granite night lizard is

unknown, the general distribution is

known. Furthermore, the Plan Area is

contiguous with suitable Habitat in eastern

Riverside, San Bernardino, Orange, and

San Diego counties.

The Incidental Take of the granite night

lizard is difficult to quantify due to our

limited knowledge of the species

distribution within the Plan Area and

the fact that losses may be masked by

natural fluctuations in abundance and

distribution during the life of the

permit. However, the maximum level

of Take for this species can be

anticipated by the loss of the number

of acres of Habitat that will become

unsuitable for the species.

Approximately 197,038 acres (40

percent) of potential Habitat for the

granite night lizard would be outside

the MSHCP Conservation Area and

individuals within this Habitat will be

subject to Take consistent with the

Plan. Twenty-eight (74 percent) of the

47 precision code "1" or "2" records

None 8 Reserve Managers will manage the known and future

occurrences of this species with regard to Habitat destruction,

agriculture, predation and harassment by cats and dogs, brush

management and collecting.

Page 50: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-50

would be outside the MSHCP

Conservation Area. However of these,

5 (18 percent) are mapped within

existing developed or disturbed land

coverages. The remaining 23 (82

percent) are in natural Habitats.

granite spiny lizard

(Sceloporus orcutti)

1 The granite spiny lizard population is widespread

throughout the Plan Area. The granite spiny lizard occurs

in a wide variety of Habitats but is restricted to granite

outcrops and boulder fields. The species is common in

most areas of the Plan Area where granite outcrops and

boulder fields occur and is well distributed throughout,

occurring at all elevation levels. No specific management

regimes are needed to maintain adequate Habitat for this

species, although management of Habitat for a wide

variety of upland species such as the California

gnatcatcher, Stephens' kangaroo rat, forest species, Los

Angeles pocket mouse may benefit the granite spiny

lizard, where the managed species co-occur with granite

outcrops and boulder fields.

Objective 1: Include within the MSHCP Conservation Area

granite outcrops and boulder fields within at least

408,216 acres of chaparral, coastal sage scrub,

desert scrub, Riversidean alluvial fan sage scrub,

pinyon juniper scrub, montane coniferous forest,

and woodlands and forests in large blocks

throughout the Plan Area.

Objective 2: Include within the MSHCP Conservation Area at

least 12 Core Areas at the Santa Rosa Plateau

(8,360 acres), Lake Skinner-Diamond Valley Lake

(29,070 acres), Lake Mathews-Estelle Mountain

(31,180 acres), San Jacinto Wildlife Area-Lake

Perris (17,470 acres), the Badlands (24,920

acres), Potrero Valley (10,000 acres), the

Banning Bench (9,610 acres), Sage/Vail Lake

(50,000 acres), Aqua Tibia Mountains (10,460

acres), San Jacinto Mountains (140,000 acres),

Santa Ana Mountains (71,490 acres), and Anza

Valley (4,290 acres).

Conservation for the granite spiny lizard

will be achieved by the inclusion of at least

408,216 acres of suitable Conserved

Habitat within 12 Core Areas which are

composed of large blocks of Habitat within

the MSHCP Conservation Area. In

addition, the MSHCP Plan will maintain

(once every 8 years) the continued use of

75 percent of the Core Areas. The current

population size of the granite spiny lizard

is unknown, but the general distribution is,

and a relatively sizable database is present

within the UCR database. Furthermore,

the Plan Area is contiguous with suitable

Habitat in eastern Riverside, San

Bernardino, Orange, and San Diego

counties.

Approximately 237,637 acres (37

percent)of potential Habitat for the

granite spiny lizard would be outside

the MSHCP Conservation Area and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Seventy (68 percent) of

the 103 precision code "1" or "2"

records would be outside the MSHCP

Conservation Area. However of these,

13 (19 percent) are mapped within

existing agriculture and 18 (26

percent) are located in developed or

disturbed Habitat coverages. The

remaining 39 (56 percent) are in

natural Habitats.

None 8 General Management Measure 1.

northern red-diamond

rattlesnake

(Crotalus ruber ruber)

2 The northern red-diamond rattlesnake is widely distributed

throughout the Plan Area. Data collected for this species

shows a patchy distribution within the Plan Area without

clearly defined Core Areas. The red-diamond rattlesnake

is often found in areas with dense vegetation especially

chaparral and sage scrub up to 1,520 meters in elevation.

There are no definable Core Areas for this species. It is

anticipated that this species will respond to a landscape

level of management with site-specific requirements (e.g.,

hibernacula).

Objective 1: Include within the MSHCP Conservation Area at

least 338,672 acres of chaparral and sage scrub

within the Plan Area below 1,520 meters.

Acreage conserved include large core blocks

within the MSHCP Conservation Area

representing a wide range of elevations.

Objective 2: Include within the MSHCP Conservation Area at

least 10 Core Areas at the Santa Ana Mountains

(71,490 acres), Agua Tibia Mountains (10,460

acres), San Jacinto Mountains (140,000 acres),

Lake Skinner-Diamond Valley Lake (29,070

acres), Lake Mathews-Estelle Mountain (31,180

acres), San Jacinto Wildlife Area-Lake Perris

(17,470 acres), the Badlands (24,920 acres),

Conservation for the northern red-diamond

rattlesnake will be achieved by the

inclusion of at least 338,672 acres of

suitable Conserved Habitat within 12 Core

Areas which are composed of large blocks

of Habitat within the MSHCP Conservation

Area. The Core Areas are provided with

numerous connections of Proposed and

Existing Cores. In addition, the MSHCP

Plan will maintain (once every 8 years) the

continued use of 75 percent of the Core

Areas. The current population size of the

red-diamond rattlesnake is unknown, but

the general distribution is, and a relatively

sizable database is present within the UCR

The Incidental Take of northern

red-diamond rattlesnake is difficult to

quantify due to our limited knowledge

of the species distribution within the

Plan Area and the fact that losses may

be masked by fluctuations in

abundance and distribution during the

life of the permit. However, the

maximum level of Take of the northern

red-diamond rattlesnake can be

anticipated by the loss of the number

of acres of Habitat that will become

unsuitable for this species.

Approximately 214,769 acres (39

percent) of potential Habitat for the

None 8 Reserve Managers will manage the known and future

occurrences of this species with regard to off-road vehicle

activity, brush management activities, predation by domestic

animals and road kills.

Page 51: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-51

Potrero Valley (10,000 acres), the Banning Bench

(9,610 acres), Sage/Vail Lake (50,000 acres),

and Anza Valley (4,290 acres).

Objective 3: Include within the MSHCP Conservation Area

Linkages between Core Areas (including

hibernacula that are a limiting Habitat feature for

this species). Connections between the Core

Areas will be facilitated by upland and riparian

connections from Estelle Mountain to Wildomar,

Gavilan Hills, San Jacinto River, Kolb

Creek/Arroyo Seco, Temecula Creek, Tucalota

Creek, Wilson Creek, Tule Creek, and San

Gorgonio Wash.

database. Furthermore, the Plan Area is

contiguous with suitable Habitat in eastern

Riverside, San Bernardino, Orange, and

San Diego counties.

northern red-diamond rattlesnake

would be outside the MSHCP

Conservation Area and individuals

within these areas will be subject to

Incidental Take consistent with the

Plan. Thirty-two (62 percent) of the

52 precision code "1" or "2" records

would be outside the MSHCP

Conservation Area. However, of

these, 6 (19 percent) are mapped

within existing agricultural areas and 9

(28 percent) are mapped in

residential/urban/exotic/pond areas.

San Bernardino mountain

kingsnake

(Lampropeltis zonata

parvirubra)

2 The mountain kingsnake populations are narrowly defined

within the Plan Area. The San Diego Mountain kingsnake

is only known to occur within the Santa Ana Mountains,

Aqua-Tibia Mountains, and Desert Transition Bioregions

above 500 meters in elevation (Fisher and Case, 1997).

The San Bernardino mountain kingsnake is only known to

occur within the San Bernardino Mountains and San

Jacinto Mountains bioregions above 1,500 meters (Fisher

and Case, 1997). Both species are restricted to rock

outcrops, talus, and steep shady canyons within

coniferous and mixed coniferous, hardwood, or riparian

woodlands and other edge Habitats when associated with

coniferous Habitat. It is anticipated that these species'

will respond to a landscape level of management.

Because the San Diego and San Bernardino mountain

kingsnakes are largely restricted to US Forest Service

lands, coverage is dependent on management

commitments from the US Forest Service.

Objective 1: Include within the MSHCP Conservation Area at

least 22,159 acres of montane coniferous forest,

deciduous woodlands and forest, riparian scrub,

woodland, and forest between above 1500

meters in elevation within the San Jacinto

Mountains and San Bernardino Mountains

Bioregions for the San Bernardino mountain

kingsnake.

Conserved Habitat will include Linkages between

conserved areas.

Objective 2: Include within the MSHCP Conservation Area

suitable microHabitat (e.g., rock outcrops, talus,

and steep shady canyons) within coniferous and

mixed coniferous, hardwood, or riparian

woodlands.

Conservation for the San Bernardino

mountain kingsnake will be achieved by

the inclusion of at least 22,159 acres of

suitable Conserved Habitat within 2 Core

Areas which are composed of large blocks

of Habitat within the MSHCP Conservation

Area. In addition, the MSHCP Plan will

maintain (once every 8 years) the

continued use of 75 percent of the Core

Areas. Furthermore, the Plan Area is

contiguous with suitable Habitat in San

Bernardino County.

Approximately 7,571 acres (26

percent) of potential Habitat for the

San Bernardino mountain kingsnake

would be outside the MSHCP

Conservation Area and individuals

within these areas will be subject to

Incidental Take consistent with the

Plan.

None 8 Reserve Managers will manage the known and future

occurrences of this species with regard to logging and firewood

harvesting, removal of rock outcrops and ground debris and

human collection.

San Diego banded gecko

(Coleonyx variegatus

abbottii)

2 The San Diego banded gecko population is patchily but

widely distributed throughout the Riverside Lowlands and

San Jacinto Foothills Bioregions. The San Diego banded

gecko occurs in a wide variety of sage scrub and

chaparral Habitats, where suitable cover exists associated

with granitic outcrops and boulder fields where there is

also ground debris (i.e., yucca stalks). There are no

definable key or core populations for this species within

the Plan Area. Because it requires scattered to extensive

Objective 1: Include within the MSHCP Conservation Area at

least 147,066 acres of sage scrub and chaparral

below 1,520 meters in elevation in large core

blocks within the Riverside Lowlands and San

Jacinto Foothills Bioregions.

Objective 2: Include within the MSHCP Conservation Area at

least 7 Core Areas at the San Jacinto foothills

(149,750 acres), Lake Skinner-Diamond Valley

Conservation for the San Diego banded

gecko will be achieved by the inclusion of

at least 147,066 acres of suitable

Conserved Habitat within 7 Core Areas

which are composed of large blocks of

Habitat within the MSHCP Conservation

Area. The Core Areas are provided with

numerous connections of Proposed and

Existing Cores. In addition, the MSHCP

Approximately 125,771 acres (46

percent) of potential Habitat for the

San Diego banded gecko would be

outside the MSHCP Conservation Area

and individuals within these areas will

be subject to Incidental Take

consistent with the Plan. Six (40

percent) of the 15 precision code "1"

or "2" records would be outside the

None 8 Reserve Managers will manage the San Diego banded gecko

within Core Areas for this species with regard to illegal

collecting, Habitat destruction (including dirt road and trail

construction), artificial lighting, non-native predators,

introduction of exotic grasses, and off-road vehicle usage.

Page 52: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-52

exfoliated rocky outcrops with weathered, well-drained,

coarse to rocky sandy loam soil, and healthy, mature

sage scrub and chaparral Habitat with an open

understory, the San Diego banded gecko will require

site-specific considerations and management conditions.

Lake (29,070 acres), Lake Mathews-Estelle

Mountain (31,180 acres), San Jacinto Wildlife

Area-Lake Perris (17,470 acres), the Badlands

(24,920 acres), Santa Ana Mountains (71,490

acres), and Sage/Vail Lake (50,000 acres).

Connections between these blocks will be

facilitated by upland and riparian connections

from Estelle Mountain to Wildomar, Gavilan Hills,

San Jacinto River, Temecula Creek, and Tucalota

Creek.

Objective 3: Include within the MSHCP Conservation Area

suitable microHabitat (e.g., exfoliating granite

outcrops, boulderfields, ground debris, yucca

stems) within the general Habitats to maintain

areas for daily cover, hibernation and

reproduction purposes.

Plan will maintain (once every 8 years) the

continued use of 75 percent of the Core

Areas. The current population size and

distribution of the San Diego banded

gecko is unknown, however the Plan Area

is contiguous with suitable Habitat in

eastern Riverside, San Bernardino,

Orange, and San Diego counties.

MSHCP Conservation Area. However

of these, 1 (17 percent) are mapped

within existing agriculture and 1 (17

percent) are located in developed or

disturbed Habitat coverages.

San Diego horned lizard

(Phrynosoma coronatum

blainvillei)

1 The San Diego horned lizard population is widespread

throughout the Plan Area. The horned lizard occurs

primarily in scrub, chaparral, and grassland Habitats. The

species is common in most areas of the Plan Area except

where adjacent to urban situations. No specific

management regimes are needed to maintain this

species, although management of Habitat for species

such as the California gnatcatcher, Stephens' kangaroo

rat, San Bernardino kangaroo rat, and Los Angeles pocket

mouse may benefit the horned lizard.

Objective 1: Include within the MSHCP Conservation Area at

least 407,036 acres of scrub, chaparral, woodland

and grassland Habitat. The majority of Habitat

Conservation will occur in large blocks within the

Plan Area.

Objective 2: Include within the MSHCP Conservation Area at

least 13 Core Areas at the Santa Rosa Plateau

(8,360 acres), Lake Skinner-Diamond Valley Lake

(29,070 acres), Lake Mathews-Estelle Mountain

(31,180 acres), San Jacinto Wildlife Area-Lake

Perris (17,470 acres), the Badlands (24,920

acres), Potrero Valley (10,000 acres), the Banning

Bench (9,610 acres), Sage/Vail Lake (50,000

acres), Anza Valley (4,290 acres), Agua Tibia

Wilderness (10,460 acres), Paloma Valley/

Hogbacks (5,050 acres), Santa Ana Mountain

foothills (71,490 acres), and Santa Ana River

(10,740 acres).

Conservation for the San Diego horned

lizard will be achieved by the inclusion of

at least 407,036 acres of suitable

Conserved Habitat within 13 Core Areas

which are composed of large blocks of

Habitat within the MSHCP Conservation

Area. The Core Areas are provided with

numerous connections of Proposed and

Existing Cores. In addition, the MSHCP

Plan will maintain (once every 8 years) the

continued use of 75 percent of the Core

Areas. The current population size of the

horned lizard is unknown, but the general

distribution is, and a relatively sizable

database is present within the UCR

database. Furthermore, the Plan Area is

contiguous with suitable Habitat in eastern

Riverside, San Bernardino, Orange, and

San Diego counties.

Approximately 322,536 acres (44

percent) of potential Habitat for the

San Diego horned lizard would be

outside the MSHCP Conservation Area

and individuals within these areas will

be subject to Incidental Take

c o n s i st e n t w i th the P la n .

Seventy-eight (56 percent) of the 135

precision code "1" or "2" records

would be outside the MSHCP

Conservation Area. However of these,

9 (12 percent) are mapped within

existing agriculture and 20 (26

percent) are located in developed or

disturbed Habitat coverages.

Forty-nine (63 percent) are in

chaparral, coastal sage scrub,

woodlands and forests, and

non-native grassland Habitats.

None 8 General Management Measures 1, 3 and 4.

San Diego mountain

kingsnake

(Lampropeltis zonata

pulchra)

2 The mountain kingsnake populations are narrowly defined

within the Plan Area. The San Diego mountain kingsnake

is only known to occur within the Santa Ana Mountains,

Aqua-Tibia Mountains, and Desert Transition Bioregions

above 500 meters in elevation (Fisher and Case, 1997).

Objective 1: Include within the MSHCP Conservation Area at

least 7,708 acres of montane coniferous forest,

deciduous woodlands and forest, riparian scrub,

woodland, and forest above 500 meters in elevation

within the Santa Ana Mountains, Agua-Tibia

Conservation for the San Diego mountain

kingsnake will be achieved by the

inclusion of at least 7,708 acres of

suitable Conserved Habitat within 3 Core

Areas which are composed of large blocks

Approximately 2,723 acres (26

percent) of potential Habitat for the

San Diego mountain kingsnake would

be outside the MSHCP Conservation

Area and individuals within these

None 8 Reserve Managers will manage the known and future

occurrences of this species with regard to logging and firewood

harvesting, removal of rock outcrops and ground debris, and

human collection.

Page 53: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-53

The San Bernardino Mountain kingsnake is only known to

occur within the San Bernardino Mountains and San

Jacinto Mountains bioregions above 1,500 meters (Fisher

and Case, 1997). Both species are restricted to rock

outcrops, talus, and steep shady canyons within

coniferous and mixed coniferous, hardwood, or riparian

woodlands and other edge Habitats when associated with

coniferous Habitat. It is anticipated that these species'

will respond to a landscape level of management.

Because the San Diego and San Bernardino mountain

kingsnakes are largely restricted to US Forest Service

lands, coverage is dependent on management

commitments from the US Forest Service.

Mountains, and Desert Transition Bioregions for the

San Diego mountain kingsnake.

Conserved Habitat will include Linkages between

conserved areas.

Objective 2: Include within the MSHCP Conservation Area

suitable microHabitat (e.g., rock outcrops, talus,

and steep shady canyons) within coniferous and

mixed coniferous, hardwood, or riparian

woodlands.

of Habitat within the MSHCP Conservation

Area. In addition, the MSHCP Plan will

maintain (once every 8 years) the

continued use of 75 percent of the Core

Areas. Furthermore, the Plan Area is

contiguous with suitable Habitat in eastern

Riverside and San Diego counties.

areas will be subject to Incidental Take

consistent with the Plan.

southern rubber boa

(Charina bottae

umbratica)

2 The southern rubber boa population is narrowly defined

within the San Jacinto Mountains. The rubber boa is often

found in fallen debris, rock piles, and steep, rocky

montane areas within coniferous forests, woodlands,

chaparral, and grasslands above 1,540 meters in

elevation. It is assumed that this species will respond to

a landscape level of management with site-specific

requirements (i.e., fallen debris, rock piles) if

management addresses the threats of development,

firewood harvesting, poaching, off-road vehicle use, fern

harvesting, commercial timber harvesting, fire

management, and land exchanges.

Objective 1: Include within the MSHCP Conservation Area at

least 2,577 acres of chaparral, grassland, montane

coniferous forest, deciduous woodlands, and forest

above 1,540 meters in elevation within the Plan

Area. Conserved Habitat will include both Linkages

between conserved areas and the fallen debris and

rock piles that are a limiting Habitat feature for this

species. Habitat conserved for this species will be

limited to large blocks within the San Jacinto

Mountains.

Conservation for the southern rubber boa

will be achieved by the inclusion of at least

2,577 acres of suitable Conserved Habitat

within one Core Area (San Jacinto

Mountains) within the MSHCP

Conservation Area. The Core Area

provides connections between seasonally

preferred Habitats. In addition, the

MSHCP Plan will maintain (once every 8

years) the continued use of 75 percent of

the Core Areas. The current population

size and distribution of the southern

rubber boa is unknown. Furthermore, the

Plan Area is contiguous with suitable

Habitat in eastern Riverside, San

Bernardino, and San Diego counties.

Incidental Take of the southern rubber

boa is difficult to quantify due to our

limited knowledge of the species

distribution within the Plan Area and

the fact that losses may be masked by

fluctuations in abundance and

distribution during the life of the

permit. However, the maximum level

of Take of the southern rubber boa can

be anticipated by the loss of the

number of acres of Habitat that will

become unsuitable for this species,

and individuals within these areas will

be subject to Incidental Take

con s i s t en t w i t h the P lan.

Approximately 155 acres (5 percent)

of potential Habitat for the southern

rubber boa would be outside the

MSHCP Conservation Area.

None 8 Reserve Managers will manage this species in order to maintain

sufficient suitable microHabitat sites (i.e., fallen debris, rock

piles) within the general Habitats. Particular management

emphasis will be given with regard to fire and fire suppression,

logging and firewood harvesting, fern harvesting, commercial

timber harvesting and Habitat fragmentation.

southern sagebush lizard

(Sceloporus graciosus

vandenburgianus)

2 For purposes of this analysis, the southern sagebrush

lizard population is found within the San Jacinto and

Santa Rosa Mountains above 5,000 feet. The sagebrush

lizard occurs primarily in open montane areas with good

light and scattered low bushes. Habitats in which it is

found includes montane chaparral, sage brush, hardwood

and conifer forests and woodlands and juniper

Objective 1: Include within the MSHCP Conservation Area at

least 41,105 acres of chaparral, coastal sage scrub,

desert sage scrub, montane coniferous forest,

peninsular juniper woodland, and woodlands and

forest Habitats above 1,500 meters in elevation in

the San Jacinto and Santa Rosa Mountains

bioregions. Conserved Habitat will include both

Conservation for the southern sagebrush

lizard will be achieved by the inclusion of

at least 41,105 acres of suitable

Conserved Habitat within the San Jacinto

and Santa Rosa Mountains above 1,500

meters. In addition, the MSHCP Plan will

maintain (once every 8 years) the

Approximately 10,246 acres (20

percent) of potential Habitat for the

sagebrush lizard would be outside the

MSHCP Conservation Area and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Eleven (42 percent) of

None 8 Reserve Managers will manage this species in order to maintain

sufficient suitable microHabitat sites (i.e., fallen debris, rock

piles) within the general Habitats. Particular management

emphasis will be given with regard to fire and fire suppression,

off-road vehicle use, catastrophic fire, invasive species, human

collection, predation and harassment by cats and dogs, and

local isolation of populations.

Page 54: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-54

woodlands. It is anticipated that this species will respond

to a landscape level of management with site-specific

requirements (i.e., fallen debris and rock piles) if

management addresses the threats of catastrophic fire,

off-road vehicle usage, road construction, and Habitat

destruction.

Linkages between conserved areas and the fallen

debris and rock piles that are a limiting Habitat

feature for this species. Habitat conserved for this

species will be limited to large blocks within the San

Jacinto Mountains.

Objective 2: Include within the MSHCP Conservation Area

suitable microHabitat sites (e.g., fallen debris and

rock piles) within the general Habitats.

continued use of 75 percent of the Core

Areas. The current population size and

distribution of the sagebrush lizard is

unknown, but key Habitat areas are

known. Furthermore, the Plan Area is

contiguous with suitable Habitat in eastern

Riverside, San Bernardino, and San Diego

counties.

the 26 precision code "1" or "2"

records would be outside the MSHCP

Conservation Area.

western pond turtle

(Clemmys marmorata

pallida)

3 The western pond turtle has narrow Habitat requirements

and potentially limited distribution within the Plan Area,

typically being restricted to slow moving permanent or

intermittent streams, small ponds, small lakes, reservoirs,

and other long term water deposits, where abundant

cover is available. The pond turtle may also use adjacent

uplands up to 2 km from water bodies. Currently, the

species is known from throughout the Plan Area, but key

areas appear to be at the confluence of Temecula Creek

and Murrieta Creek, Santa Ana River, Santa Rosa Plateau,

and San Jacinto River. Because the pond turtle requires

very specific Habitat conditions and uses a well defined

Habitat that is narrowly distributed, this species will

require site specific considerations, protection of primary

Habitat and adjacent upland areas, and species-specific

Conservation measures.

Objective 1: Include within the MSHCP Conservation Area at

least 18,289 acres of suitable primary pond turtle

Habitat (open water, meadows and marshes, and

riparian scrub, woodland and forest). Conservation

areas will include slow moving permanent or

intermittent rivers and streams, small ponds,

wetlands, arroyos, vernal pools, small lakes,

abandoned gravel pits, permanent stock ponds,

sewage treatment lagoons, reservoirs, areas with

submerged rocks and roots, emergent basking

sites, partially submerged logs, emergent (matted)

vegetation, rocks and mudbanks.

Objective 2: Include within the MSHCP Conservation Area at

least eight Core Areas, including but not limited to,

Cajalco Creek (7,849 acres), San Mateo Creek

(18,375 acres), Santa Ana River (34,598 acres),

Chino Creek (2,446 acres), Temecula Creek

(17,784 acres), Murrieta Creek (23,084 acres),

Santa Rosa Plateau (17,187 acres), and San

Jacinto River (70,294 acres). Please note that the

acreages include all Habitats within the 2 kilometer

buffer area and river/creek system.

Objective 3: Include within the MSHCP Conservation Area

59,999 acres of upland Habitat including

grasslands, oak woodlands, chaparral, seasonal

flood plains, coastal sage scrub, and other Habitats

within about 2 km of water bodies within the

MSHCP Conservation Area lands adjacent to the

riparian woodland.

Conservation for the western pond turtle

will be achieved by the inclusion of at least

78,288 acres of suitable Conserved

wetland and upland Habitat within at least

eight Core Areas which are composed of

suitable occupied wetland areas and

surrounding upland buffers and other large

blocks of Habitat within the MSHCP

Conservation Area. The Core Areas are

provided with numerous connections of

Proposed and Existing Cores. In addition,

the MSHCP Plan will maintain continued

use at a minimum of 75 percent of the

conserved Core Areas as measured once

every three years. The current population

size of the western pond turtle is

unknown, but the general distribution is,

and the species is generally readily

detectable. Furthermore, the Plan Area is

contiguous with suitable Habitat in eastern

Riverside, San Bernardino, Orange, and

San Diego counties.

The Incidental Take of the western

pond turtle is difficult to quantify due

to our limited knowledge of its

distribution and abundance within the

Plan Area. The maximum level of

Incidental Take of western pond turtle

can be anticipated by the loss of the

number of acres of potential Habitat

that will become unsuitable for this

species. Approximately 5,331 acres

(22 percent) of suitable wetland

Habitat and 34,068 acres (36 percent)

of suitable adjacent upland Habitat will

be outside the MSHCP Conservation

Area and individuals within these

areas will be subject to Incidental Take

consistent with the Plan.

None 3 General Management Measure 4. Reserve Managers will

maintain ecological processes within occupied Habitat and

suitable new areas within the MSHCP Conservation Area. At a

minimum, these areas will include portions of Temecula Creek,

Santa Margarita River, Murrieta Creek, Santa Ana River, San

Jacinto River, and potentially others. Maintaining ecological

processes may include: allowing for natural dynamic fluvial

processes of flooding and Habitat regeneration within occupied

and potentially suitable streams and ponds; maintaining natural

hydrologic processes; limiting livestock access to streams,

creeks, ponds, and pools; limiting recreational use of certain

areas; altering water use; managing for urban-related predators;

and removing exotic vegetation and aquatic species. Reserve

Managers will ensure the continued use at a minimum of 75% of

the conserved Core Areas as measured once every 3 years.

Page 55: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-55

Objective 4: Include within the MSHCP Conservation Area

riparian/wetland and overland dispersal Habitat

along the Santa Margarita River, Temecula Creek,

Murrieta Creek, San Jacinto River, Temescal Wash,

Santa Ana River, San Timoteo Canyan Creek,

Sycamore Canyon Creek, Kolb Creek, Wilson Creek,

Cottonwood Creek, Tule Creek, San Gorgonio

Wash, Bautista Creek, Poppet Creek, portions of

Diamond Valley Lake, Vail Lake, Lake Elsinore, Lake

Mathews, Lake Perris, portions of Canyon Lake,

and numerous creeks, pools, and other water

bodies on Forest Service lands.

Objective 5: Within the MSHCP Conservation Area, maintain

continued use at a minimum of 75 percent of the

conserved Core Areas as measured once every 3

years.

BIRDS

American bittern

(Botaurus lentiginosus)

2 The American bittern is sparsely-distributed throughout

the MSHCP Plan Area within its suitable Habitat, however,

it is not predictably distributed within all suitable areas.

It is found in margins surrounding open water bodies, and

freshwater marshes where emergent vegetation is

present. There are several likely Core Areas for this

species based on past use by the American bittern or

presence of suitable Habitat, including Mystic Lake/San

Jacinto Wildlife Area, Santa Ana River/Prado Basin, and

Collier Marsh. The breeding locations (possibly at Mystic

Lake/San Jacinto Wildlife Area [Garrett and Dunn 1980]

and Santa Ana River/Prado Basin [L. Hays, pers. obs.])

which have been documented as active or possible are

located at specific sites that require Conservation.

Because it is well known for using emergent Habitat but

has specific breeding location requirements, it is

anticipated that this species will respond to a landscape

level of management with site specific requirements.

Objective 1: Include within the MSHCP Conservation Area at

least 410 acres of suitable nesting and foraging

Habitat for the American bittern consisting of

freshwater marsh.

Objective 2: Include within the MSHCP Conservation Area at

least 3 Core Areas including Mystic Lake/San

Jacinto Wildl ife Area (Subunit 4 of

RecheCanyon/Badlands Area Plan; 2,690 acres), a

possible nesting area, Santa Ana River/Prado Basin

(9,670 acres), a known nesting area, and Collier

Marsh (Proposed Linkage 2; 160 acres), a potential

nesting area, as well as other suitable Habitat

locations at Lake Skinner/Diamond Valley Lake

(Existing Core J; 24,370 acres), Lake Mathews

(Existing Core C; 15,610 acres), Vail Lake (Subunit

3 of Southwest Area Plan; 12,320 acres), Temescal

Wash (Subunit 3 of Temescal Canyon Area Plan;

4,010 acres), and Temecula Creek (Subunit 2 of

Southwest Area Plan; 850 acres).

Objective 3: A 100-meter buffer will be established around

emergent vegetation areas identified in Objective 2

Conservation for this species will be

achieved by inclusion of at least 410 acres

of suitable Conserved Habitat including

freshwater marsh and the three Core

Areas (including the two known or

possible nest sites within the Prado

Basin/Santa Ana River, Mystic Lake/San

Jacinto Wildlife Area, and Collier Marsh)

as well as the suitable locations at Lake

Skinner, Lake Mathews, Vail Lake,

Temescal Wash, and Temecula Creek.

The current population size of the

American bittern is unknown due to its

very secretive nature.

About 60 acres (approximately 13

percent) of potential Habitat for the

American bittern will be outside the

Criteria Area and Public/Quasi-Public

areas and individuals within these

areas will be subject to Incidental Take

consi s t en t w i t h th e P lan.

Not-conserved Habitat includes the

margins surrounding Hemet Lake and

Lake Riverside. Covered activities in

these areas will be subject to the

MSHCP Protection of Species

Associated with Riparian/Riverine

Areas and Vernal Pools policy included

in Section 6.1.2, Volume I of the

MSHCP which calls for avoidance and

minimization of impacts to

riparian/riverine areas and vernal

pools.

None 8 General Management Measure 4. Reserve Managers will

enhance and/or create additional Habitat and/or nesting areas in

the Santa Ana River/Prado Basin, San Jacinto Wildlife

Area/Mystic Lake, Collier Marsh, Temescal Wash, Temecula

Creek, Lake Mathews, Vail Lake, Lake Perris and Lake Skinner

areas. Reserve Managers will identify, protect, buffer from

disturbance with a 100-meter buffer, and monitor through time

existing and future-identified nesting and foraging Habitat in the

MSHCP Conservation Area. In order to assure the continued

presence of American Bittern at a minimum of 50% of the

locations in the MSHCP Conservation Area where the species

has been known to occur, Reserve Managers will demonstrate

presence/ absence at least once every 8 years. Reserve

Managers will ensure Habitat support functions within the

MSHCP Conservation Area by maintaining, preserving, and/or

enhancing hydrological processes on the Santa Ana River and

any other river systems important to maintain the integrity of

nesting sites in the MSHCP Conservation Area. Particular

management emphasis will be given to grazing, recreation and

hunting activities, as well as pesticide use.

Page 56: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-56

as they are incorporated into the MSHCP

Conservation Area.

Objective 4: Within the MSHCP Conservation Area, maintain

(once every 8 years) the continued use of 50

percent of the Core Areas.

bald eagle

(Haliaeetus

leucocephalus)

1 The bald eagle has a wide distribution throughout the

MSHCP Plan Area within its suitable Habitat. It occurs or

has occurred at every open water body within the Plan

Area. It uses suitable Habitat predictably and responds

well to available suitable Habitat. It occurs within the Plan

Area predominantly as a winter visitor with casual

occurrences in the summer of individuals that have

lingered at the wintering sites. It has attempted to breed

at Lake Elsinore and at Lake Skinner but has not done so

successfully.

Objective 1: Include within the MSHCP Conservation Area at

least 10,340 acres of open water Habitat at the

following seven open water bodies and one

drainage: Lake Mathews, Diamond Valley Lake,

Lake Skinner, Lake Elsinore, Vail lake, Lake Perris,

Mystic Lake and Santa Ana River. Include within

the MSHCP Conservation Area 5,520 acres of

suitable riparian Habitat within the Prado Basin and

Santa Ana River.

Objective 2: A 100-meter buffer will be established around open

water bodies identified in Objective 1 as they are

incorporated into the MSHCP Conservation Area.

Conservation for this species will be

achieved by inclusion of at least 15,860

acres of suitable Conserved Habitat

including open water bodies and riparian

Habitat within the Santa Ana River and

Prado Basin. The current population size

of the bald eagle is unknown because it is

primarily a winter and transient visitor.

However, a single pair has made repeated,

but unsuccessful, attempts to breed at

Lake Skinner in recent years.

The estimated Take of the bald eagle

is based on the acreage of potentially

suitable and/or occupied Habitat.

About 2,140 acres (12 percent) of

potential Habitat for the bald eagle will

be outside the Criteria Area and

Public/Quasi-Public designations and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Potential Habitat not

included within the MSHCP

Conservation Area includes the open

water Habitat at Hemet Lake and Lake

Riverside.

None 8 General Management Measure 4. Reserve Managers will

manage known and future occurrences of bald eagle for hunting

and recreational activities, as well as pesticide use. Reserve

Managers (including at Lake Perris) will identify, protect, buffer

from disturbance with a 100-meter buffer (buffering consistent

with the recreational activities at Lake Perris), and monitor

through time existing and future-identified nesting and foraging

Habitat in the MSHCP Conservation Area.

Bell’s sage sparrow

(Amphispiza belli belli)

2 The Bell's sage sparrow is widely but sparsely distributed

throughout the MSHCP Plan Area within suitable Habitat

in the Riverside lowlands, Santa Ana Mountains, Desert

Transition and San Jacinto Foothills Bioregions. It is

absent from higher elevation Bioregions. The Bell's sage

sparrow occurs within several areas that appear to be

Core Areas including Jurupa Mountains, Lake

Mathews-Estelle Mountain, Wasson Canyon, Santa Rosa

Plateau, Sedco Hills, Hogbacks, Lake Skinner/Diamond

Valley Lake, Vail Lake/Wilson Valley/Aguanga, Tule Valley,

Santa Rosa Hills, Lakeview Mountains, Lake Perris,

Badlands, and Box Springs Mountains. However, none of

these Core Areas contains large or dense populations of

the Bell's sage sparrow. The Bell's sage sparrow is a

year-round resident within the Plan Area. Because it is

well known for using coastal sage scrub and chaparral

Habitats, occurs widely but sparsely and well scattered

within these Habitats in the Riverside lowlands, San

Jacinto Foothills, Desert Transition, and Santa Ana

Mountains Bioregions, but has specific locations that are

Core Areas, it is anticipated that this species will respond

Objective 1: Include within the MSHCP Conservation Area at

least 245,750 acres of suitable Habitat for Bell's

sage sparrow including coastal sage scrub,

chaparral, and desert scrubs in Riverside lowland,

Santa Ana Mountains, Desert Transition, and San

Jacinto foothills Bioregions.

Objective 2: Include within the MSHCP Conservation Area at

least 12 of 14 Core Areas and interconnecting

Linkages for Bell's sage sparrow. Core areas will

include the Jurupa Mountains (Proposed

Noncontiguous Habitat Block 2; 1,230 acres), Lake

Mathews-Estelle Mountain (Existing Core C plus

Proposed Extension of Existing Core 2; 23,710

acres), Wasson Canyon (Subunit 5 of Elsinore Area

Plan; 2,320 acres), Sedco Hills (Proposed Linkage

8; 5,470 acres), Hogbacks (Proposed Core 2; 5,050

acres), Lake Skinner/Diamond Valley Lake (Existing

Core C plus Proposed Extension of Existing Cores

5, 6, 7; 29,060 acres), Vail Lake/Wilson

Valley/Aguanga (Proposed Core 7; 50,000 acres),

Conservation for this species will be

achieved by inclusion of at least 245,750

acres of suitable Conserved Habitat and

12 of 14 Core Areas within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, 34 recent and high precision

locations will be inside the Criteria Area or

Public/Quasi-Public Lands, all of which are

recorded for the suitable Habitat of Bell's

sage sparrow. Conservation also will be

provided for the Habitat Linkages between

Core Areas and areas important for

dispersal including the Jurupa Mountains,

which is also conserved as a Core Area,

Reche Canyon, and San Timoteo Creek

areas as well as other Linkages. The

current population size of the Bell's sage

sparrow is unknown. However the Habitat

requirements of the species and locations

that constitute key populations are well

documented.

The Incidental Take of the Bell's sage

sparrow is difficult to quantify due to

our limited knowledge of its

distribution and abundance within the

Plan Area. The maximum level of

Incidental Take of Bell's sage sparrow

can be anticipated by the loss of the

number of acres of Habitat that will

become unsuitable for this species.

About 177,440 acres of potential

Habitat for the Bell's sage sparrow will

be outside the Criteria Area and

Public/Quasi-Public designations, or

about 42 percent of the total potential

Habitat and individuals within these

areas are subject to Incidental Take

consistent with the Plan. Of this,

approximately 73,180 acres (17

percent) of potential Habitat are

located within Rural/Mountainous

designation areas, which may provide

None 8 Reserve Managers responsible for a Core Area will evaluate the

condition of the sage sparrow Habitat within the Core Area and

maintain a program to enhance and/or create suitable Habitat

within the Core Area to keep the coastal sage scrub vegetation

within 10% of the baseline value within the areas defined in

Objective 1 of the Species Account. Reserve Managers will

conserve Habitat Linkages between Core Areas and other areas

important for dispersal at the Jurupa Mountains, Reche Canyon,

and San Timoteo Creek. Particular management emphasis will

be given to alteration of the natural fire regime and predation by

domestic animals within the MSHCP Conservation Area.

Page 57: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-57

well to a landscape level of management with site specific

requirements.

Tule Valley, (Proposed Core 6; 4,290 acres),

Lakeview Mountains (Proposed Noncontiguous

Habitat Block 5; 7,150 acres), Lake Perris (Existing

Core H; 17,470 acres), Badlands (Proposed Core 3;

24,920 acres), and Box Springs Mountains (Existing

Noncontiguous Habitat Block A plus Proposed

Constrained Linkage 8; 2,920 acres).

Objective 3: Include within the MSHCP Conservation Area

Habitat Linkages between Core Areas and areas

important for dispersal including the Jurupa

Mountains, Reche Canyon, and San Timoteo Creek

areas.

some Habitat value, but will not be

managed for the benefit of covered

species and cannot be relied upon as

conserved Habitat for the Bell's sage

sparrow. These areas include the

Santa Rosa Plateau, Santa Rosa Hills,

and a portion of the Badlands.

Core Areas not conserved within

Criteria Area and Public/Quasi-Public

designations include the Santa Rosa

Plateau and Santa Rosa Hills. A total

of 64 recent and high precision point

locations of the Bell's sage sparrow

will be outside the Criteria Area and

Public/Quasi-Public designations. Of

these 64 point locations, 18 (18

percent) will be in the Rural/

Mountainous zone. Of the 46 (47

percent) points located outside the

MSHCP Conservation Area, 26 are

mapped in existing residential/urban/

exotic areas.

black-crowned night

heron (Nycticorax

nycticorax) (Breeding

Rookeries)

2 The black-crowned night heron is relatively well-

distributed throughout the MSHCP Plan Area within its

suitable Habitat; however, it is not predictably distributed

within all suitable areas. It occurs at almost all of the

open water bodies where emergent or riparian vegetation

is present and many of the playas and riparian drainages

that may provide foraging opportunities. There are several

Core Areas for this species, including Mystic Lake/San

Jacinto Wildlife Area, Prado Basin/Santa Ana River, and

Collier Marsh. The breeding locations, which have been

documented as active or historic, are located at specific

sites that require Conservation. Because it is well known

for using emergent Habitat, riparian areas for breeding,

and ponds and other aquatic Habitat for foraging, but has

specific locations that are used for breeding, it is

assumed that this species will respond to a landscape

level of management with site-specific requirements (e.g.,

breeding rookeries).

Objective 1: Include within the MSHCP Conservation Area at

least 16,560 acres of suitable nesting and foraging

Habitat for the black-crowned night heron including

freshwater marsh, playas and vernal pools, riparian

scrub, woodland, and forest, and cismontane alkali

marsh.

Objective 2: Include within the MSHCP Conservation Area at

least the 3 known and historic breeding locations in

the Prado Basin/Santa Ana River (9,670 acres),

Mystic Lake/San Jacinto Wildlife Area (Subunit 4 of

Reche Canyon/Badlands Area Plan; 2,690 acres),

and Collier Marsh areas (Proposed Linkage 2; 160

acres).

Objective 3: A 100-meter buffer will be established around the

Core Areas identified in Objective 2 as they are

incorporated into the MSHCP Conservation Area.

Conservation for this species will be

achieved by inclusion of at least 16,560

acres of suitable Conserved Habitat

including 9,840 acres of primary breeding

and foraging Habitat and 6,720 acres of

secondary foraging Habitat. Additionally,

the three core known or potential breeding

locations, Prado Basin/Santa Ana River,

Collier Marsh, and Mystic Lake/San

Jacinto Wildlife Area within large blocks of

Habitat are included in the MSHCP

Conservation Area. As these Core Areas

are incorporated into the MSHCP

Conservation Area, a 100-meter buffer will

be established around each Core Areas.

The current population size of the

black-crowned night-heron is unknown.

The Incidental Take of the

black-crowned night-heron is difficult

to quantify at this time owing to our

limited knowledge of the precise

location and extent of nesting sites

and the fact that losses may be

masked by fluctuations in abundance

and distribution during the life of the

permit. However, the level of Take of

black-crowned night-heron can be

anticipated by the loss of the number

of acres of Habitat that will be

impacted or become unsuitable for

this species. About 2,840 acres (22

percent) of potential primary breeding

and foraging Habitat for the

black-crowned night-heron will be

outside the Criteria Area and Public/

Quasi-Public Lands. Approximately

1,160 acres (14 percent) of potential

None 8 General Management Measure 4. Reserve Managers will

enhance and/or create additional nesting areas in the Santa Ana

River/Prado Basin, San Jacinto Wildlife Area/Mystic Lake, Collier

Marsh, Lake Mathews, Vail Lake, and Lake Skinner areas.

Reserve Managers will identify, protect, buffer from disturbance

with a 100-meter buffer, and monitor through time nest sites in

the reserve area. Reserve Managers will manage

future-identified nesting localities within the MSHCP

Conservation Area. Reserve Managers will ensure Habitat

support functions within the MSHCP Conservation Area by

maintaining hydrological process, specifically seasonal flows in

the Santa Ana River.

Page 58: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-58

secondary foraging Habitat for the

black-crowned night-heron will be

outside the Criteria Area and

Public/Quasi-Public Lands.

This comprises approximately 19

percent of the total potential Habitat.

No Take of nesting colonies will occur.

The estimate of Incidental Take is

consistent with the anticipated land

uses and the application of the

riparian/riverine area and vernal pool

avoidance and land use adjacency

policies/guidelines.

black swift

(Cypseloides niger) -

breeding

1 The black swift has been recorded in very low numbers

spread widely over the Plan Area. Almost all of the

observations are of migrating individuals except for the

vicinity of the known nesting location in the San Jacinto

Mountains. It will forage on the wing in every Habitat

available within the Plan Area. It has very specialized nest

site requirements that only occur in one or possibly two

locations within the Plan Area both of which are located

within the San Bernardino National Forest. For foraging

purposes, it can be managed on a landscape level.

The black swift is designated as a Forest Service

Sensitive Species. Forest Service Sensitive Species are

protected through the implementation of Forest plans and

the biological evaluation (BE) process, which considers

the potential effects of Forest Service activities on these

species.

Objective 1: Include within the MSHCP Conservation area at

least 34,020 acres of deciduous woodland and

forest and montane coniferous forest within the San

Bernardino Mountains and San Jacinto Mountains

Bioregions to provide breeding and foraging Habitat,

including the known nesting location of the black

swift at Tahquitz Creek within the San Jacinto

Wilderness Area and the potential nesting location

at the north fork of the San Jacinto River in the San

Jacinto Mountains.

Conservation for this species will be

achieved by inclusion of at least 34,020

acres of suitable Conserved Habitat,

including montane coniferous woodland

and deciduous woodland and forest

Habitats of the San Jacinto Mountains and

San Bernardino Bioregions. In addition,

the one known and one potential nest site

will be conserved in the MSHCP

Conservation Area. The current

population size of the black swift within

the Plan Area is unknown.

The Incidental Take of the black swift

is difficult to quantify due to our limited

knowledge of its distribution and

abundance within the Plan Area. The

maximum level of Incidental Take of

black swift can be anticipated by the

loss of the number of acres of Habitat.

Approximately 12,270 acres (27

percent) of potential Habitat for the

black swift will be outside the Criteria

Area and Public/Quasi-Public Land

designations and individuals within

this area will be subject to Incidental

Take consistent with the Plan. No

known nesting locations will be

subject to Take.

None 8 General Management Measure 4. Reserve managers will

manage the known and future nesting locations of this species

where proximate to existing or proposed recreational activities,

particularly trail systems.

burrowing owl

(Athene cunicularia

hypugaea)

3 The burrowing owl is narrowly distributed at relatively few

locations within the Plan Area in suitable Habitat.

Although the preferred Habitat, grassland and some forms

of agriculture land, is well distributed, the recent locations

of the burrowing owl are clumped in only a few locations.

Because this species requires specific soil and micro-

Habitat conditions, occurs in few locations within a broad

Habitat category, requires a relatively large home range to

support its life history requirements, occurs in relatively

low numbers, and is semi-colonial, the burrowing owl will

Objective 1: Include within the MSHCP Conservation Area at

least 27,470 acres of suitable primary Habitat for

the burrowing owl including grasslands.

Objective 2: Include within the MSHCP Conservation Area at

least 5 Core Areas and interconnecting Linkages.

Core areas may include the following: (1) Lake

Skinner/Diamond Valley Lake area (Existing Core C

plus Proposed Extension of Existing Cores 5, 6, 7;

29,060 acres); (2) playa west of Hemet (Proposed

Conservation for this species will be

achieved by inclusion of at least 27,470

acres of suitable primary Conserved

Habitat and 22,120 acres of suitable

secondary Conserved Habitat and 5 of 6

Core Areas within large blocks of Habitat

in the MSHCP Conservation Area. In

addition, 16 recent and high precision

locations will be inside the Criteria Area or

Public/Quasi-Public Lands. Conservation

The Incidental Take of the burrowing

owl is difficult to quantify due to our

limited knowledge of its distribution

within the Plan Area and the fact that

losses may be masked by fluctuations

in abundance and distribution during

the life of the permit. However, the

maximum level of Take of burrowing

owl can be anticipated by the loss of

the number of acres of Habitat that will

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 Reserve Managers will manage known and future occurrences

of this species with regard to Habitat loss and use of

rodenticides and pesticides. Reserve Managers will conduct

presence/absence surveys for burrowing owl where potential

Habitat occurs within the MSHCP Conservation Area prior to

conducting activities that may negatively affect the burrowing

owl. Surveys will be conducted within 30 days prior to

disturbance. Take of active nests will be avoided as described

in the BMP (Appendix C). Passive relocation (use of one way

doors and collapse of burrows) will occur when owls are present

Page 59: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-59

require site-specific considerations and management

conditions.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for burrowing

owl will be conducted as part of the project review

process for public and private projects within the

burrowing owl survey area where suitable Habitat is

present (see Burrowing Owl Survey Area Map, Figure 6-4

of the MSHCP, Volume I). Burrowing owls located as a

result of survey efforts shall be conserved in accordance

with procedures described within Section 6.3.2, MSHCP,

Volume 1.

Noncontiguous Habitat Block 7; 1,250 acres); (3)

San Jacinto Wildlife Area/Mystic Lake area including

Lake Perris area (Existing Core H; 17,470 acres);

(4) Lake Mathews (Existing Core C plus Proposed

Extension of Existing Cores 2; 23,710 acres); and

(5) along the Santa Ana River (9,670 acres). The

Core Areas should support a combined total

breeding population of approximately 120 burrowing

owls with no fewer than five pairs in any one Core

area.

Objective 3: Include within the MSHCP Conservation Area at

least 22,120 acres of suitable secondary Habitat for

the burrowing owl including playas and vernal

pools, and agriculture outside of the Core Areas

identified above. Areas where additional suitable

Habitat could be conserved include west of the

Jurupa Mountains, near Temescal Wash (i.e.,

vicinity of Alberhill), near Temecula Creek, within

the Lakeview Mountains, Banning, the Badlands,

Gavilan Hills, and Quail Valley.

Objective 4: Include within the MSHCP Conservation Area the

known nesting locations of the burrowing owl at

Lake Perris, Mystic Lake/San Jacinto Wildlife area,

Lake Skinner area, the area around Diamond Valley

Lake, playa west of Hemet, Lakeview Mountains,

Lake Mathews/Estelle Mountain Reserve and

Sycamore Canyon Regional Park.

Objective 5: Surveys for burrowing owl will be conducted as part

of the project review process for public and private

projects within the burrowing owl survey area

where suitable Habitat is present (see Burrowing

Owl Survey Area Map, Figure 6-4 of the MSHCP,

Volume I). The locations of this species determined

as a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.3.2, MSHCP, Volume I and the guidance

provided below:

also will be provided for the Habitat

Linkages between Core Areas and areas

important for dispersal as described

above. The current population size of the

burrowing owl is unknown; however, the

foraging and nesting Habitat requirements

are well defined. Surveys will be

conducted and locations of owls will be

conserved in accordance with procedures

described in Section 6.3.2, MSHCP,

Volume 1. The Conservation Strategy of

this species includes pre-construction

surveys of potential Habitat areas and

Conservation as appropriate until sufficient

Conservation is attained because it occurs

in grassland Habitats that are not relatively

abundant within the MSHCP Conservation

Area and the distribution of the species

within the Plan Area is not well known.

These surveys will provide the information

to determine whether the area is currently

being used by the species and will

supplement the known locations.

Translocation of burrowing owls may be

used if necessary to establish colonies in

currently unoccupied areas.

become unsuitable for this species.

About 82,490 acres (75 percent) of

the primary potential Habitat for the

burrowing owl will be outside of the

Criteria Area or Public/Quasi-Public

lands and individuals within these

areas are subject to Incidental Take

consistent with the Plan. About

101,400 acres (82 percent) of the

secondary potential Habitat for the

burrowing owl will be outside of the

Criteria Area or Public/Quasi-Public

Lands and individuals within these

areas are subject to Incidental Take

consistent with the Plan. A total of 22

point localities recorded within the

UCR database will be outside of the

MSHCP Conservation Area. Core

Areas not conserved include Valle

Vista. Smaller numbers of clustered

locations of burrowing owls that will

be outside the Criteria Area and

Public/Quasi-Public Lands, include

those locations at the area west of the

Jurupa Mountains, San Jacinto,

Rancho California area (Long Canyon

and De Portola Road), and March

ARB. Historically, there were a

number of locations concentrated

within the Moreno Valley area,

however due to the age of the location

and the development within the area,

the number currently within this area

is unknown and receives no

Conservation within the MSHCP

Conservation Area. Individual

locations that are outside the MSHCP

Conservation Area include locations at

Beaumont, Banning, and Murrieta.

outside the nesting season. Translocation sites for the

burrowing owl will be created in the reserve for the

establishment of new colonies. Translocation sites will be

identified, taking into consideration unoccupied Habitat areas,

presence of burrowing mammals, existing colonies and effects

to other Covered Species. The Wildlife Agencies will concur with

the site selection prior to translocation site development.

Page 60: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-60

Burrowing owl surveys shall be conducted utilizing

accepted protocols as follows. If burrowing owls

are detected on the project site then the action(s)

taken will be as follows:

If the site is within the Criteria Area, then at least 90

percent of the area with long-term Conservation

value will be included in the MSHCP Conservation

Area. Otherwise:

1) If the site contains, or is part of an area

supporting less than 35 acres of suitable

Habitat or the survey reveals that the site and

the surrounding area supports fewer than 3

pairs of burrowing owls, then the on-site

burrowing owls will be passively or actively

relocated following accepted protocols.

2) If the site (including adjacent areas) supports

three or more pairs of burrowing owls,

supports greater than 35 acres of suitable

Habitat and is non-contiguous with MSHCP

Conservation Area lands, at least 90 percent

of the area with long-term Conservation value

and burrowing owl pairs will be conserved

onsite.

The survey and Conservation requirements

stated in this objective will be eliminated when

it is demonstrated that Objectives 1 – 4 have

been met.

Objective 6: Pre-construction presence/absence surveys for

burrowing owl within the survey area where suitable

Habitat is present will be conducted for all Covered

Activities through the life of the permit. Surveys will

be conducted within 30 days prior to disturbance.

Take of active nests will be avoided. Passive

relocation (use of one way doors and collapse of

burrows) will occur when owls are present outside

the nesting season.

Page 61: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-61

Objective 7: Translocation sites for the burrowing owl will be

created in the MSHCP Conservation Area for the

establishment of new colonies. Translocation sites

will be identified, taking into consideration

unoccupied Habitat areas, presence of burrowing

mammals to provide suitable burrow sites, existing

colonies and effects to other Covered Species.

Reserve Managers will consult with the Wildlife

Agencies regarding site selection prior to

translocation site development.

cactus wren

(Campylorhynchus

brunneicapillus)

3 The cactus wren is narrowly distributed at relatively few

locations in suitable Habitat within the Plan Area.

Although the preferred Habitat, coastal sage scrub, desert

scrubs, and Riversidean alluvial fan sage scrub is well

distributed, the locations of the cactus wren are clumped

in few locations due to its specific Habitat requirements.

It requires patches of cactus-dominated sage scrub

Habitat in the Riverside Lowland and San Jacinto Foothill

Bioregions of the Plan Area. Because this species has

specific Habitat requirements (cactus patches), occurs in

few locations within a broader Habitat category, and

occurs in relatively low numbers within the Plan Area, the

cactus wren will require site-specific considerations, a

landscape level of management, and species-specific

Conservation measures as a Group 3 species.

Objective 1: Include within the MSHCP Conservation Area at

least 77,070 acres of suitable Habitat for the cactus

wren including desert scrub, Riversidean alluvial fan

sage scrub, and coastal sage scrub within Riverside

Lowland and San Jacinto Foothill Bioregions.

Objective 2: Include within the MSHCP Conservation Area at

least 11 Core Areas and interconnecting Linkages

including Chino Hills (Proposed Extension of

Existing Core 1; 270 acres), Badlands (Proposed

Core 3; 24,920 acres), Box Springs Mountains

(Existing Noncontiguous Habitat Block A plus

Proposed Constrained Linkages 7 and 8; 4,000

acres), Lake Mathews-Estelle Mountain area

(Existing Core C plus Proposed Extension of

Existing Core 2; 23,710 acres), Alberhill (Subunit 2

of Elsinore Area Plan; 3,460 acres), Motte-Rimrock

area MSHCP Conservation Area (Proposed

Noncontiguous Habitat Block 4; 1,150 acres), Lake

Perris/ Bernasconi Hills (Existing Core H; 17,470

acres), Lake Skinner (Existing Core C plus

Proposed Extension of Existing Cores 5, 6, 7;

29,060 acres), Vail Lake (Subunit 3 of Southwest

Area Plan; 12,320 acres), Wilson Valley (Subunit 2

of REMAP Area Plan; 33,540 acres), and Aguanga

(Subunit 4 of REMAP Area Plan; 2,660 acres).

Objective 3: Include within the MSHCP Conservation Area

micro-Habitat (i.e., cactus patches) in potential

nesting Habitat.

Conservation for this species will be

achieved by inclusion of at least 77,070

acres of suitable Conserved Habitat and

11 of 12 Core Areas within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, 14 recent and high precision

locations will be inside the Criteria Area or

Public/Quasi-Public Lands, all of which are

recorded for the suitable Habitat of the

cactus wren. Conservation also will be

provided for the Habitat Linkages between

Core Areas as identified above.

Additionally, the species-specific

Conservation measure for the cactus wren

consists of conserving the microHabitat

for this species which is composed of

cactus patches within the Core Areas

within the MSHCP Conservation Area. The

current population size of the cactus wren

is unknown but has been estimated at 100

to 110 pairs (McKernan 1998 pers.

comm.).

The Incidental Take of the cactus wren

is difficult to quantify due to our limited

knowledge of its distribution and

abundance within the Plan Area. The

maximum level of Incidental Take of

cactus wrens can be anticipated by

the loss of the number of acres of

potential Habitat that will become

unsuitable for this species. About

63,700 acres (45 percent) of potential

Habitat for the cactus wren will be

outside the Criteria Area and

Public/Quasi-Public designations, and

individuals within this Habitat will be

subject to Incidental Take consistent

with the plan. Of this, approximately

19,940 acres of potential Habitat (14

percent) are located wi th in

Rural/Mountainous designation areas.

While the Rural/Mountainous areas are

not included within the MSHCP

Conservation Area, will not be

managed for the benefit of wildlife, and

the existing zoning/ordinances for

these areas do not preclude

development and could allow

substantial fragmentation and/or

degradation of Habitat for proposed

covered species, the anticipated levels

of development of these areas may be

consistent with maintaining some

Habitat for the cactus wren. A total of

20 locations within the UCR database

None 8 Each Reserve Manager responsible for a Core Area identified in

the Species Account will evaluate the condition of cactus

patches within the Core Area and maintain a program to enhance

and/or create cactus patches, the preferred microHabitat, within

the Core Area to keep the areal extent of cactus patches within

10% of that present at the base line surveys. Within each Core

area, Reserve Managers will maintain occupancy of at least 80

percent of the cactus wren Habitat determined to be occupied

using existing information and baseline surveys. Baseline

surveys of the Core Areas will be conducted as necessary (i.e.,

where no existing information exists) to determine the number of

acres occupied by cactus wren within each core area. Particular

management emphasis will be given to fire and fire suppression

activities, grazing, farming, competition from non-native species,

and Habitat fragmentation and transition.

Page 62: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-62

of the cactus wren will be outside the

Criteria Area and Public/Quasi-Public

designations, 9 of which are located

within residential or developed areas

and may no longer be extant. The

Core Area within the Temecula Creek

area west of Vail Lake is not

considered conserved. Although a

Proposed Constrained Linkage is

located within this drainage, the

upland areas within which the cactus

wren might be present are not

conserved.

California horned lark

(Eremophila alpestris

actia)

2 The California horned lark is relatively widely-distributed

throughout the MSHCP Plan Area within its suitable

Habitat, however, it is not predictably distributed within all

suitable areas. It occurs in some of the sparsely

vegetated Habitats but has not been documented to be

uniformly distributed within all open Habitat areas. There

appear to be several Core Areas including Mystic

Lake/San Jacinto Wildlife Area, the grasslands within

Prado Basin, Wasson Canyon area, Moreno Valley/March

ARB, and Murrieta/Murrieta Hot Springs area. Because it

is well known for using open, sparsely vegetated Habitats

but has specific locations that appear to be Core Areas,

it responds well to a landscape level of management with

site specific requirements.

Objective 1: Include within the MSHCP Conservation Area at

least 153,750 acres of suitable foraging and nesting

Habitat for the California horned lark including playa

and vernal pool Habitats, agriculture (field

croplands), grassland, cismontane alkali marsh,

coastal sage scrub, and Riversidean alluvial fan

sage scrub. The scrub Habitats provide foraging

Habitat and nesting opportunities in areas where the

scrub is relatively sparse.

Objective 2: Include within the MSHCP Conservation Area at

least 3 Core Areas and a portion of a fourth Core

Area for the California horned lark including

grasslands around Prado Basin (including the

adjacent Santa Ana River area; 9,670 acres),

Wasson Canyon (Subunit 5 of Elsinore Area Plan;

2,320 acres), Mystic Lake/San Jacinto Wildlife Area

(Subunit 4 of Reche Canyon/Badlands Area Plan;

2,690 acres), and a portion of the Core Area in the

Murrieta/Murrieta Hot Springs area (Proposed Core

2; 5,050 acres). Other locations are conserved as

well, although they may not include Core Areas.

These other locations include Lake Elsinore

grasslands, Santa Rosa Plateau, and Wilson Valley.

Conservation for this species will be

achieved by the inclusion of at least

153,750 acres of suitable Conserved

Habitat and the Core Areas within the

Prado Basin, Wasson Canyon, and Mystic

Lake/San Jacinto Wildlife Area, as well as

a portion of the Core Area within the

Murrieta/Murrieta Hot Springs area

(Proposed Core 2). The current

population size of the California horned

lark is unknown however the foraging and

nesting Habitat requirements are well

defined. The species is moderately

predictable in its occurrence and may vary

in number within the area from a few to

many individuals. It occurs repeatedly in

a number of conserved locations.

About 284,800 acres (65 percent) of

potential Habitat for the California

horned lark will be outside the Criteria

Area and Publ ic/Quasi-Public

designations and individuals within

these areas will be subject to

Incidental Take consistent with the

Plan. One of the 5 Core Areas, the

Moreno Valley/March ARB area, will

be outside the MSHCP Conservation

Area. A portion of a Core Area within

the Murrieta/Murrieta Hot Springs area

will be outside the MSHCP

Conservation Area.

None 8 Reserve Managers will manage known and future occurrences

of this species for pesticide use and Habitat fragmentation and

destruction.

California spotted owl

(Strix occidentalis

occidentalis)

2 The California spotted owl has a sparse distribution within

the Santa Ana Mountains, San Bernardino Mountains and

San Jacinto Mountains Bioregions of the MSHCP Plan

Area within montane coniferous and oak-deciduous

Objective 1: Include within the MSHCP Conservation Area at

least 41,370 acres of suitable montane coniferous

forest and oak deciduous woodland and forest

Habitats within the Santa Ana Mountains (7,350

Conservation for this species will be

achieved by inclusion of at least 41,370

acres of suitable Conserved Habitat and

the known nesting localities within large

Approximately 16,000 acres (about 28

percent) of potential Habitat for the

California spotted owl will be outside

the Criteria Area or Public/Quasi-

None 8 Reserve Managers will mange micro Habitat (i.e., old-growth

forest) and integrate monitoring and management programs for

the California spotted owl and the San Bernardino Flying squirrel.

Reserve Managers will manage the known nesting locations and

Page 63: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-63

woodlands and forest Habitats. It is a Group 2 species

because its Conservation requires integration of Habitat

protection with site specific monitoring and management.

acres), San Bernardino Mountains (1,620 acres),

and San Jacinto Mountains (32,400 acres)

Bioregions for breeding, foraging, wintering use,

and dispersal movement for the California spotted

owl.

Objective 2: Include within the MSHCP Conservation Area the

nesting locations within the Santa Ana, San Jacinto

and San Bernardino mountains.

blocks of Habitat in the MSHCP

Conservation Area.

Public designations, and individuals

within these areas will be subject to

incidental take consistent with the

Plan. Approximately five locations

from the CDFG database appear to be

located outside of the Criteria Area or

Public/Quasi-Public designations. Only

one of these five locations outside of

the MSHCP Conservation Area has

been recorded as nesting (1988). No

other known nesting areas are outside

the Criteria Area or Public/Quasi-

Public designations. No take of

nesting locations is included within

this permit.

potential nesting Habitat (e.g., Habitat that consists of large

blocks of mature forest with large trees and snags for nesting,

dense, multi-layered canopy cover for roost seclusion, and a

permanent water source, consistent with the species' needs)

within the San Jacinto, San Bernardino, and Santa Ana

mountains. Particular management emphasis will be given to

fire and fire suppression activities, alteration of hydrology,

farming, mining, logging and firewood harvesting.

coastal California

gnatcatcher

(Polioptila californica

californica)

2 The coastal California gnatcatcher is distributed widely

within suitable Habitat in the Riverside lowlands and San

Jacinto Foothills Bioregions especially along the Interstate

15/215 corridor from the Santa Ana River to Temecula

and into the Vail Lake area. It is absent from the higher

elevations and desert areas. The Coastal California

gnatcatcher occurs in 16 Core Areas within the Plan Area

including Alessandro Hills, El Cerrito, Lake Mathews-

Estelle Mountain Reserve, Alberhill area, the proposed

North Peak Conservation Bank/Meadowbrook area,

Wasson Canyon, Railroad Canyon, Quail Valley, Sedco

Hills, Hogbacks, Murrieta Hot Springs, Lake Skinner, Buck

Road to Pourroy Road east of Murrieta Hot Springs, Vail

Lake/Wilson Valley including the eastern Temecula Creek

area, Rancho California east of Interstate 15 to De Portola

Road, and Norco Hills. The coastal California

gnatcatcher, as a year-round resident, has lower

dispersal capabilities than small passerine birds that are

long-distance migrants and thus relies on Habitat

Linkages for localized and regional movements. Because

the coastal California gnatcatcher is well known for using

coastal sage scrub within the lowland and foothill

Bioregions, occurs widely within its suitable Habitat, but

has specific locations that are Core Areas, it is included

as a Group 2 species to be managed at a Habitat level

with site specific requirements in Core Areas and

Linkages.

Objective 1: Include within the MSHCP Conservation Area at

least 77,070 acres of suitable Habitat including

coastal sage scrub, Riversidean alluvial fan scrub

and desert scrub in the Riverside Lowland and San

Jacinto Foothills Bioregions.

Objective 2: Include within the MSHCP Conservation Area at

least 13 of the Core Areas and interconnecting

Linkages within 9 Core and Linkage areas including

El Cerrito/Lake Mathews-Estelle Mountain Reserve

(Existing Core C plus Proposed Extension of

Existing Core 2; 23,710 acres), Alberhill area

(Subunit 2 of the Elsinore Area Plan; 3,460 acres),

the proposed North Peak Conservation

Bank/Meadowbrook area (Subunit 6 of the Elsinore

Area Plan; 1,080 acres), Wasson Canyon (Subunit

5 of the Elsinore Area Plan; 2,320 acres), Railroad

Canyon/Sedco Hills (Proposed Linkage 8; 5,470

acres), a portion of the Quail Valley area (Proposed

Linkage 7; 3,400 acres), Hogbacks/Murrieta Hot

Springs (Proposed Core 2 plus Existing Constrained

Linkage A; 5,350 acres), Lake Skinner/Buck Road

to Pourroy Road east of Murrieta Hot Springs

(Existing Core J plus Proposed Extension of Existing

Core 5, 6, and 7; 29,060 acres), Vail Lake/Wilson

Valley including the eastern Temecula Creek area

(Proposed Core 7; 50,000 acres). Due to mapping

Conservation for this species will be

achieved by inclusion of at least 77,070

acres of suitable Conserved Habitat and

13 Core Areas within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will document that the

MSHCP Conservation Area will maintain

(once every three years) the continued

use of and successful reproduction at 75

percent of the Core Areas. Successful

reproduction is defined as a nest which

fledged at least one known young.

The current number of locations of the

gnatcatcher in Riverside County is

estimated at 250 to 300 pairs. The

gnatcatcher is restricted to more lowland

areas and is not distributed evenly through

the preferred Habitat. It occurs in a

patchy distribution and thus the suitable

Habitat as well as the Core Areas and

connections of these Core Areas need to

be addressed as described in detail above.

Numerous small patches and small

numbers of gnatcatchers are conserved

as well and are likely to be important as

About 63,700 acres of potential

primary Habitat for the coastal

California gnatcatcher will be outside

the Criteria Area and Public/Quasi-

Public designations, or about 45

percent of the total potential primary

Habitat. Of this, approximately 19,940

acres (14 percent) of potential primary

H a b i t a t i s l oca t ed w i t h i n

Rural/Mountainous designation areas.

Based on the evaluation of Habitat

quality provided by PSBS and KTU+A

(1995), approximately 40,810 acres

(39 percent) of moderate, high and

very high quality Habitat will be

outside the MSHCP Conservation

Area. This includes 3,470 acres (19

percent) of the very high quality

Habitat, 20,680 acres (39 percent) of

the high quality Habitat, and 16,660

acres (49 percent) of the moderate

quality Habitat.

Core Areas not conserved within

Criteria Area and Public/Quasi-Public

designations include the Norco Hills

population (approximately 5 locations),

None 3 3 Each Reserve Manager responsible for a Core Area as identified

in the Species Account will evaluate the condition of the sage

scrub vegetation within the Core Area and maintain a program to

enhance and/or create sage scrub within the Core Area to keep

the percent cover of coastal sage scrub vegetation within 10%

of the baseline value within the areas defined in Objective 1 of

the Species Account. Reserve Managers will maintain

occupancy of at least 80 percent of the occupied gnatcatcher

Habitat, as determined using existing information and baseline

surveys, within each Core Area. Reserve Managers will maintain

(once every three years) continued use of and successful

reproduction at 75% of the Core Areas. Successful reproduction

is defined as a nest which fledged at least one known young.

Conduct baseline surveys as necessary (i.e., where no existing

information exists) to determine the number of acres occupied

by gnatcatchers within each Core Area. Particular management

emphasis will be given to fire and fire suppression activities,

farming, grazing, domestic animals, Habitat fragmentation and

transition, and competition with non-native species.

Page 64: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-64

configuration, some of the coastal California

gnatcatcher Core Areas have been combined in

order to provide the acreage of MSHCP

Conservation Area within the Core Area.

Objective 3: Within the MSHCP Conservation Area, maintain

(once every three years) continued use of and

successful reproduction at 75 percent of the Core

Areas. Successful reproduction is defined as a nest

which fledged at least one known young.

providing a source of dispersing birds.

These small populations, many of which

are documented above to be preserved

may be important to prevent further

isolation of remaining breeding groups.

Alessandro Hills (approximately eight

locations), a portion of the Quail Valley

area (approximately six locations), and

Rancho California east of Interstate 15

to De Portola Road (approximately 10

locations some of which may no

longer be extant due to recent

development in the area). Based on

the UCR database, a total of 27

locations (7 percent) will be in the

Rural/Mountainous zone and 130

locations (33 percent) are located

outside the MSCHP Conservation

Area. However, of the 130 points, 37

are mapped in existing residential/

urban/exotic areas.

Cooper’s hawk

(Accipiter cooperii)

2 The Cooper's hawk is widely distributed throughout the

MSHCP Plan Area within suitable Habitat. It occurs within

all Bioregions of the Plan Area. There are several areas

that appear to be Core Areas including the Prado

Basin/Santa Ana River, San Timoteo Canyon, Temescal

Wash, Wasson Canyon, Slater Canyon, Santa Rosa

Plateau West, Temecula Creek, Murrieta Creek, Tucalota

Creek, Vail Lake, Wilson Valley, San Bernardino National

Forest, and Cleveland National Forest. Because it is well

known for using riparian scrub, forest and woodland, oak

woodland and forest, and montane coniferous forest,

occurs in all Bioregions of the Plan Area, but has specific

locations that are Core Areas, it is a Group 2 species.

Objective 1: Include within the MSHCP Conservation Area at

least 54,580 acres of suitable Habitat including

riparian scrub, forest, and woodland, oak woodland

and forest, and montane coniferous forest.

Objective 2: Include within the MSHCP Conservation Area at

least 10 Core Areas at (1) the Prado Basin/Santa

Ana River (9,670 acres), (2) San Timoteo Canyon

(Subunit 3 of The Pass Area Plan; 2,290 acres), (3)

Temescal Wash (Subunit 3 of Temescal Canyon

Area Plan; 4,010 acres), (4) Wasson Canyon

(Subunit 5 of Elsinore Area Plan; 2,320 acres), (5)

Temecula Creek (Subunit 2 of Southwest Area Plan;

850 acres), (6) Murrieta Creek (Subunit 1 of

Southwest Area Plan; 2,060 acres), (7) Vail Lake

(Subunit 3 of Southwest Area Plan; 12,320 acres),

(8) Wilson Valley (Subunit 2 of REMAP Area Plan;

33,540), (9) San Bernardino National Forest

(Existing Core K;149,750 acres), (10) Cleveland

National Forest (Existing Core B; 71,490 acres).

Conservation for this species will be

achieved by inclusion of at least 54,580

acres of suitable Conserved Habitat and

10 Core Areas including the Prado

Basin/Santa Ana River, San Timoteo

Canyon, Temescal Wash, Wasson

Canyon, Temecula Creek, Murrieta Creek,

Vail Lake, Wilson Valley, San Bernardino

National Forest, and Cleveland National

Forest.

About 22,100 acres (29 percent) of

potential Habitat for the Cooper's hawk

will be outside the Criteria Area and

Public/Quasi-Public designations and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Of this, approximately

5,430 acres (7 percent) of potential

Habitat are located within Rural/

Mountainous designation areas. While

the Rural/Mountainous areas are not

included within the MSHCP

Conservation Area and will not be

managed for the benefit of wildlife, the

anticipated levels of development in

these areas will likely be consistent

with maintaining some Habitat for the

Cooper's hawk. A portion of the core

population within the Santa Rosa

Plateau is within the Rural/

Mountainous designation and is not

considered to be conserved. The

population at Slater Canyon is also

within the Rural/Mountainous

designation and is not considered to

be conserved. The core population

None 8 General Management Measure 4. Reserve Managers will

evaluate the condition of the riparian vegetation within the Core

Areas and maintain a program to enhance and/or create riparian

Habitat within the Core Areas. Reserve Managers will maintain

the hydrological processes within the drainages that support the

potential Habitat for this species and will selectively rehabilitate

or revegetate all such potential Habitat areas that are currently

fragmented or otherwise degraded by, for instance, infestations

of exotic plants and animals. Reserve Managers will manage

any nesting locations found in the future within the MSHCP

Conservation Area. Particular management emphasis will be

given to Habitat destruction and degradation, timber harvesting,

pesticide use and human disturbance at nest sites.

Page 65: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-65

area at Tucalota Creek is constrained

by existing development and although

Habitat is provided within the drainage

by conserved riparian scrub,

woodland and forest, the individuals

within this drainage are not considered

to be conserved.

double-crested cormorant

(Phalacrocorax auritus)

2 The double-crested cormorant has a wide distribution

throughout the MSHCP Plan Area within suitable Habitat.

It occurs at every open water body within the Plan Area

and thus uses Habitat predictably and responds well to

available suitable Habitat. It will use Habitat near open

water bodies containing trees for creating rookeries. The

only known nesting location in the Plan Area and any

nesting locations found in the future will require site

specific management.

Objective 1: Include within the MSHCP Conservation Area

16,100 acres of open water Habitat within seven

open water bodies and one drainage including Lake

Mathews, Diamond Valley Lake, Lake Skinner, Lake

Elsinore, Vail Lake, Lake Perris, Mystic Lake and

Prado Basin/Santa Ana River and the wetland

Habitats within Prado Basin/Santa Ana River.

Objective 2: Include within the MSHCP Conservation Area the

known double-crested cormorant rookery in the

Prado Basin/Santa Ana River.

Conservation for this species will be

achieved by inclusion of at least 16,100

acres of suitable Conserved Habitat (open

water and wetland Habitat within the

Prado Basin/Santa Ana River) and the

known rookery location in the Prado

Basin/Santa Ana River. The current

population size of the double-crested

cormorant is unknown, however it appears

to have regular use of specified areas and

a known breeding location that has been

regularly monitored in the past.

The estimated Take of the double-

crested cormorant is based on the

acreage of potentially suitable and/or

occupied Habitat. About 2,180 acres

of potential Habitat for the

double-crested cormorant will be

outside the Criteria Area and Public/

Quasi-Public Lands and individuals

located within these areas will be

subject to Incidental Take consistent

with the Plan. This comprises

approximately 12 percent of the total

potential Habitat. This includes the

open water bodies composed of

Hemet Lake, and Lake Riverside.

None 8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining, preserving, and/or enhancing

hydrological processes within the following: Lake Mathews,

Diamond Valley Lake, Lake Skinner, Lake Elsinore, Vail Lake,

Lake Perris, Mystic Lake and Prado Basin/Santa Ana River.

Reserve Managers will manage the known double-crested

cormorant rookery in the Santa Ana River drainage/Prado Basin,

as well as future rookeries. Particular management emphasis

will be given to pesticide use, flood control measures and

Habitat destruction, and human persecution.

downy woodpecker

(Picoides pubescens)

2 The downy woodpecker is sparsely distributed throughout

the MSHCP Plan Area within suitable Habitat. There are

several areas that appear to be Core Areas including

Prado Basin/Santa Ana River, Temescal Canyon, Alberhill

Creek, Temecula Creek, and the Vail Lake area. It also

occurs in other areas of the Plan Area including but not

limited to San Timoteo Creek, the Badlands, Potrero, the

mountain Bioregions, and Wilson Valley. Because it is

well known for using riparian scrub, forest and woodland,

and oak woodland and forest, occurs in all Bioregions of

the Plan Area with known Core Areas, a landscape level

of management with site specific requirements is

proposed.

Objective 1: Include within the MSHCP Conservation Area at

least 34,080 acres of suitable nesting and foraging

Habitat for the downy woodpecker including riparian

scrub, forest and woodland, and oak woodland and

forest.

Objective 2: Include within the MSHCP Conservation Area the 5

Core Areas and Linkages within the Prado

Basin/Santa Ana River (9,670 acres), Vail Lake

(Subunit 3 of the Southwest Area Plan; 12,320

acres), Temescal Wash (Subunit 3 of the Temescal

Canyon Area Plan; 4,010 acres), Alberhill Creek

(Subunit 2 of the Elsinore Area Plan; 3,460 acres),

and Temecula Creek (Subunit 2 of the Southwest

Area Plan; 850 acres).

Objective 3: Include within the MSHCP Conservation Area the

micro-Habitat (i.e., groups of large snags) in

potential nesting Habitat.

Conservation for this species will be

achieved by the inclusion of at least

34,080 acres of suitable Conserved

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will conserve the micro-

Habitat (i.e., groups of large snags) in

potential nesting Habitat. Five of the Core

Areas of the downy woodpecker are

conserved within large blocks of Habitat in

the MSHCP Conservation Area and

additional areas with few or no recorded

locations but that contain potential Habitat

are also conserved.

About 12,710 acres (about 27

percent) of potential Habitat for the

downy woodpecker will be outside the

Criteria Area or Public/Quasi-Public

designations, and individuals within

these areas will be subject to

Incidental Take consistent with the

Plan. None of the Core Areas will be

outside the MSHCP Conservation

Area. Of this, approximately 5,390

acres (12 percent) of potential Habitat

are located within Rural/Mountainous

designation areas. While the Rural/

Mountainous areas are not included

within the MSHCP Conservation Area

and will not be managed for the benefit

of wildlife, the anticipated levels of

development in these areas will likely

be consistent with maintaining some

Habitat for the downy woodpecker.

None 8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions by maintaining, preserving,

and/or enhancing hydrological process of Prado Basin/Santa

Ana River. Reserve Managers will manage known and future

identified nesting localities and protect micro-Habitat (i.e.,

groups of large snags) in potential nesting Habitat.

Page 66: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-66

ferruginous hawk

(Buteo regalis)

1 The ferruginous hawk has a widespread distribution

throughout the MSHCP Plan Area within suitable foraging

Habitat. It occurs within the Plan Area as a transient in

the spring and fall and may winter within the area. It does

not require specific conditions or locations for nesting

because it does not nest in the region. It is an

opportunistic predator that may forage anywhere within

open Habitats in the area.

Objective 1: Include with the MSHCP Conservation Area at least

144,120 acres of agriculture (field crops),

grassland, cismontane alkali marsh, playa and

vernal pool, Riversidean alluvial fan sage scrub,

coastal sage scrub, desert scrub, peninsular juniper

woodland and scrub, and riparian scrub, woodland,

and forest, including 2,690 acres at Mystic

Lake/San Jacinto Wildlife Area and 5,520 acres of

riparian Habitat at Prado Basin/Santa Ana River.

Conservation for this species will be

achieved by inclusion of at least 144,120

acres of suitable Conserved Habitat

including agriculture (field crops),

grassland, cismontane alkali marsh, playa

and vernal pool, Riversidean alluvial fan

sage scrub, coastal sage scrub, desert

scrub, peninsular juniper woodland and

scrub, and riparian scrub, woodland, and

forest. The main areas within which the

species has been observed, Prado

Basin/Santa Ana River and Mystic

Lake/San Jacinto Wildlife Area, will be

conserved in the MSHCP Conservation

Area. The current population size of the

ferruginous hawk is unknown, however

the foraging Habitat requirements are well

defined. The species is moderately

predictable in its occurrence and may vary

in number within the area from a few to

many individuals. It has occurred

repeatedly in a number of conserved

locations.

About 257,290 acres (64 percent) of

potential Habitat for the ferruginous

hawk will be outside the Criteria Area

and Public/Quasi-Public designations

and individuals occurring within these

areas will be subject to Incidental Take

consistent with the Plan.

None 8 General Management Measure 1.

golden eagle

(Aquila chrysaetos)

2 The golden eagle is widely distributed as a foraging

species throughout the MSHCP Plan Area within all

bioregions and in virtually all Habitats except dense

conifer woodlands at high elevations. There are several

golden eagle nest sites within the Plan Area as well. Nest

sites occur within a variety of Habitats, predominantly

chaparral, but are more closely associated with specific

topography and micro-Habitat features than Habitat type.

Nest site locations include Temecula Gorge, in the hills

east of Sun City, in the hills north of Aguanga west of

State Route 371, Elsinore Peak, Rawson Canyon, Double

Butte, Mesa de Burro on the Santa Rosa Plateau, on a

transmission line in San Timoteo Canyon (likely nest) and

possibly in the Box Springs Mountains and on Arlington

Mountain, although these last two locations may have

now been abandoned. These nest site locations will be

considered core areas that require Conservation.

Objective 1: Include within the MSHCP Conservation Area at

least 164,390 acres of suitable foraging Habitat for

the golden eagle including grasslands, playas and

vernal pools, desert scrubs, Riversidean alluvial fan

sage scrub, oak woodlands and forests, and coastal

sage scrub. Conserved Habitats will be distributed

throughout all bioregions of the Plan Area.

Objective 2: Include within the MSHCP Conservation Area and

buffer from disturbance the known nesting locations

at Temecula Gorge, in the hills north of Aguanga

west of State Route 371, at Elsinore Peak, at

Rawson Canyon, at Mesa de Burro on Santa Rosa

Plateau, and in San Timoteo Canyon (likely nest).

Buffering of the nest sites will include Conservation

of undeveloped Habitat in the MSHCP Conservation

Area within a one mile radius around each of the

Conservation for this species will be

achieved by inclusion of at least 164,390

acres of suitable Conserved Habitat, the

known nest sites at Temecula Gorge, in

the hills north of Aguanga west of State

Route 371, at Elsinore Peak, on Mesa de

Burro on the Santa Rosa Plateau, in San

Timoteo Canyon near El Casco (likely

nest), and in Rawson Canyon, and the 1

mile buffer protection around the nest

sites. The current population size of the

golden eagle is unknown however there

are recorded nesting locations. As

identified in Objective 3, the MSHCP

Conservation Area will maintain (once

every 8 years) the continued use of, and

successful reproduction at 75 percent of

About 191,770 acres (54 percent) of

potential Habitat for the golden eagle

will be outside the Criteria Area or

Public/Quasi-Public designations, and

will be subject to incidental take

consistent with the Plan. Of this,

approximately 43,740 acres (12

percent) of potential Habitat are

located within Rural/Mountainous

designation areas. While the

Rural/Mountainous areas are not

included within the MSHCP

Conservation Area and will not be

managed for the benefit of wildlife, the

anticipated levels of development in

these areas will likely be consistent

with maintaining some Habitat for

None 8 8 Reserve Managers will buffer from disturbance, and monitor and

manage through time known nesting locations at Temecula

Gorge, in the hills north of Aguanga west of State Route 371, at

Elsinore peak, Rawson Canyon. Buffering of the nest sites will

include Conservation of undeveloped Habitat in the Criteria Area

and reserve within a one mile radius around each of the nest site

locations and may include a variety of Habitats. Monitoring and

management will be used to demonstrate continued (once every

eight years) use and successful reproduction at 75% of the

known nesting localities (including any nesting locations

identified in the MSHCP Conservation Area in the future).

Page 67: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-67

nest site locations and may include a variety of

Habitats.

Objective 3: Maintain (once every 8 years) the continued use of,

and successful reproduction at 75 percent of the

known nesting localities (including any nesting

locations identified in the MSHCP Conservation Area

in the future). Successful reproduction is defined

as a nest which fledged at least one known young.

the known golden eagle known nesting

localities (including any nesting locations

identified in the MSHCP Conservation Area

in the future). Although the Sun City,

Arlington Mountain, Box Springs

Mountains (potential), and Double Butte

nesting locations are not included within

the MSHCP Conservation Area, they have

not been recently documented as being

active and no take of active nest sites will

be permitted.

foraging for the golden eagle. Four

point locations are located within the

Rural/Mountainous category. A total

of 28 point localities will be outside of

the MSHCP Conservation Area. The

nest site location at Double Butte is

not considered conserved and has not

been documented as being active. The

nest site location in the hills east of

S u n C i t y i s w i t h i n t h e

Rural/Mountainous designation. The

current status of the Sun City site is

not known. The CNDDB recorded it as

active in 1993. It was not mentioned

as being active during recent

discussions of nest sites (P. Bloom

2001 pers. comm.). The two known

or potential nest site locations in the

Box Springs Mountains and on

Arlington Mountain are no longer

active (LaPré 2002). No Take of

active nest sites will be permitted.

grasshopper sparrow

(Ammodramus

savannarum)

2 The grasshopper sparrow is widely, but sparsely,

distributed throughout the MSHCP Plan Area within

suitable Habitat in the Riverside Lowlands, Santa Ana

Mountains, and San Jacinto Foothills Bioregions. It is

absent from the higher elevation Bioregions and the

desert transition Bioregions. The grasshopper sparrow

has well known and restricted Habitat requirements. It is

sensitive to Edge Effects and requires relatively large

blocks of contiguous Habitat.

Grasshopper sparrow habitat requirements are well

known. Once conservation has been achieved, and

specific locations that support Core Areas are known, it

is anticipated that this species will respond well to a

landscape level of management with site-specific

requirements. It has therefore been included in Group 2.

Objective 1: Include within the MSHCP Conservation Area at

least 38,690 acres of suitable Habitat for the

grasshopper sparrow including grassland Habitat

within the Riverside Lowland, San Jacinto Foothills,

and Santa Ana Mountains Bioregions.

Objective 2: Within the MSHCP Conservation Area, maintain

occupancy within 3 large Core Areas (100 percent)

and at least 3 of the 4 smaller Core Areas (75

percent) in at least 1 year out of any 5 consecutive

year period. In order for this species to become a

Covered Species Adequately Conserved, the

following Conservation must be demonstrated:

Include within the MSHCP Conservation Area at

least 8,000 acres in 7 potential Core Areas. Core

areas may include the following: 1) Prado Basin, 2)

Lake Skinner/ Diamond Valley Lake/Johnson Ranch

Conservation for this species will be

achieved by inclusion of at least 38,690

acres of suitable Conserved Habitat. In

addition, implementation of Objective 2 for

this species will provide Conservation of at

least 7 Core Areas, 3 large (>2,000

acres) and 4 smaller (>500 acres),

consisting of contiguous grassland or

grassland- dominated Habitat and

maintenance of occupancy and successful

breeding within these Core Areas.

However, the Plan does not require

surveys or Habitat assessments for this

species to inform assemblage of the

MSHCP Conservation Area. It is possible

that the overall acreage goal of 153,000

new acres of Conservation could be

The Incidental Take of the grasshopper

sparrow is difficult to quantify due to

our limited knowledge of its

distribution and abundance within the

Plan Area. The maximum level of

Incidental Take of grasshopper

sparrow can be anticipated by the loss

of the number of acres of Habitat that

will become unsuitable for this

species. About 93,350 acres (71

percent) of Habitat for the grasshopper

sparrow will be outside the MSHCP

Conservation Area and individuals

within this Habitat will be subject to

Incidental Take consistent with the

Plan. A total of 110 acres, 4 percent ,

of the native grasslands will be outside

None 1 to 5 1** Reserve Managers will conduct surveys for grasshopper

sparrow on all conserved lands with suitable Habitat within 3

years after they are added to the MSHCP Conservation Area.

Results will be used to update the baseline distribution and

determine the number of occupied Core Areas as defined under

Objective 1 of the Species Account, and direct management

activities within the MSHCP Conservation Area. Reserve

Managers will maintain occupancy within 3 large Core Areas

(100%) and at least 3 of the 4 smaller Core Areas (75%) in at

least 1 year out of any 5 consecutive year period. Five of the 7

Core Areas will be demonstrated to support at least 20

grasshopper sparrow pairs with evidence of successful

reproduction within the first 5 years after permit issuance. Each

Reserve Manager responsible for a Core Area will evaluate the

condition of the grassland vegetation within the Core Area and

maintain a program to enhance, restore, and/or create

grassland, with an emphasis on native grasslands, within the

Page 68: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-68

The MSHCP Conservation Area configuration is expected

to provide long-term conservation of the species.

However, the grasshopper sparrow is a grassland species

and as much as 70% of the mapped grassland within the

Plan Area would be outside the MSHCP Conservation

Area. Because the grasshopper sparrow does not

tolerate fragmentation and most of the grassland in the

Plan Area will be lost, Incidental Take of this species is

not included in this permit until conservation of the

species in the Plan Area has been demonstrated by

reaching Objective 2.

area, 3) Lake Mathews-Estelle Mountain, 4)

Badlands, 5) Box Springs, 6) Santa Rosa

Plateau/Tenaja, 7) Kabian Park, 8) Steele Peak, 9)

Sycamore Canyon, 10) Potrero, and 11) Mystic

Lake/San Jacinto Wildlife Area. Three of the 7 Core

Areas will be large, consisting of a minimum of

2,000 acres of grassland Habitat or

grassland-dominated Habitat (<20 percent shrub

cover). The other 4 Core Areas may be smaller but

will consist of at least 500 acres of contiguous

grassland Habitat or grassland-dominated Habitat

(<20 percent shrub cover). Five of the 7 Core

Areas will be demonstrated to support at least 20

grasshopper sparrow pairs with evidence of

successful reproduction within the first 5 years after

permit issuance. Successful reproduction is

defined as a nest which fledged at least one known

young.

achieved without conserving the 7 Core

Areas of grassland Habitat, leaving the

species vulnerable to extirpation in the

Plan Area and failing to meet the

objectives of the Plan. Under those

circumstances the Incidental Take of the

species will not be covered if the species

were to be listed during the life of the Plan.

of the MSHCP Conservation Area.

Three locations within the location

d a t a b a s e a r e w i t h i n t h e

Rural/Mountainous category. Seven

point localities will be outside of the

MSHCP Conservation Area, two of

which are recorded for residential land

use and may no longer be extant.

Core Area to keep the percent cover of grassland within 10% of

the baseline value in the areas defined in Objective 1 of the

Species Account.

great blue heron

(Ardea herodias)

2 The great blue heron is expected to be relatively well-

distributed throughout the MSHCP Plan Area within its

suitable Habitat. It likely occurs at almost all of the open

water bodies where emergent or riparian vegetation is

present and many of the playas and riparian drainages

that may provide foraging opportunities as well as many

irrigation ditches, ponds and areas where suitable

foraging opportunities are present. There are no locations

that have been recorded within the UCR database, thus

the distribution of this species is based on anecdotal

observation and expert opinion. Several areas are likely

Core Areas for this species, including Mystic Lake/San

Jacinto Wildlife Area, Santa Ana River/Prado Basin, Lake

Skinner, and Collier Marsh. The breeding locations,

which have been documented as active or historic, are

located at specific sites that require Conservation.

Because it is well known for using emergent Habitat,

riparian areas for nesting, ponds and other aquatic

Habitat, but has specific locations that are used for

breeding, it is assumed that this species will respond to

a landscape level of management with site-specific

requirements (e.g., breeding rookeries).

Objective 1: Include within the MSHCP Conservation Area at

least 16,560 acres of suitable nesting and foraging

Habitat for the great blue heron including

freshwater marsh, playas and vernal pools, riparian

scrub, woodland, and forest, and cismontane alkali

marsh.

Objective 2: Include within the MSHCP Conservation Area at

least the 3 known breeding locations, in the Santa

Ana River/Prado Basin (9,670 acres), Lake Skinner

area (Existing Core J; 24,370 acres), and Collier

Marsh areas (Proposed Linkage 2; 160 acres).

Objective 3: A 100-meter buffer will be established around the

Core Areas identified in Objective 2 as they are

incorporated into the MSHCP Conservation Area.

Conservation for this species will be

achieved by inclusion of at least 16,560

acres of suitable Conserved Habitat

including 9,840 acres of primary breeding

and foraging Habitat and 6,720 acres of

secondary foraging Habitat. Additionally,

the three core known or potential breeding

locations, Prado Basin/Santa Ana River,

Collier Marsh, and Lake Skinner area

within large blocks of Habitat are included

in the MSHCP Conservation Area. As

these Core Areas are incorporated into the

MSHCP Conservation Area, a 100-meter

buffer will be established around each

Core Areas. The current population size of

the great blue heron is unknown.

Implementation of the MSHCP, including

the Conservation of existing or potentially

occupied Habitat, core populations, and

current and historic nesting locations, is

anticipated to maintain the status of the

species and its Habitat within the MSHCP

Conservation Area.

The Incidental Take of the great blue

heron is difficult to quantify at this time

owing to our limited knowledge of the

precise location and extent of nesting

sites and the fact that losses may be

masked by fluctuations in abundance

and distribution during the life of the

permit. However, the level of Take of

great blue heron can be anticipated by

the loss of the number of acres of

Habitat that will be impacted or

become unsuitable for this species.

About 2,840 acres (22 percent) of

potential primary breeding and

foraging Habitat for the great blue

heron will be outside the Criteria Area

and Public/Quasi-Public Lands and

individuals within these areas are

subject to Incidental Take consistent

with the Plan. Approximately 1,160

acres (14 percent) of potential

secondary foraging Habitat for the

great blue heron will be outside the

None 8 General Management Measure 4. Reserve Managers will

manage the 3 known and historic breeding locations (Santa Ana

River/Prado Basin, Lake Skinner, and Collier Marsh) for Habitat

conversion and pesticide use. Reserve Managers will identify,

protect, buffer from disturbance with a 100-meter buffer, and

monitor through time nest sites in the MSHCP Conservation

Area. Reserve Managers will manage future-identified nesting

localities within the MSHCP Conservation Area. Reserve

Managers will ensure Habitat support functions within the

MSHCP Conservation Area by maintaining hydrological process,

specifically seasonal flows in the Santa Ana River.

Page 69: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-69

Criteria Area and Public/Quasi-Public

Lands and individuals within these

areas are subject to Incidental Take

consistent with the Plan. No rookeries

are anticipated to be subject to

Incidental Take.

least Bell’s vireo

(Vireo bellii pusillus)

2 The least Bell’s vireo is relatively well distributed

throughout the MSHCP Plan Area within suitable Habitat

in the Riverside Lowland and San Jacinto Foothills

Bioregions. It has relatively narrow and well documented

Habitat requirements. It occurs in several areas that

appear to be Core Areas including the Prado Basin/Santa

Ana River, Temescal Wash (including Alberhill Creek),

Mockingbird Canyon, Murrieta Creek, Temecula Creek,

Lake Skinner (including Rawson Canyon), Vail Lake,

Wilson Creek, and San Timoteo Canyon. Because it is

well known for using riparian scrub, forest and woodland,

has been well documented for its Habitat requirements,

occurs within specified and known Bioregions, but has

specific locations that are Core Areas, it will require

Conservation on a landscape level with site specific

considerations for Core Areas.

Objective 1: Include within the MSHCP Conservation Area at

least 9,430 acres of suitable Habitat including

riparian forest, woodland and scrub Habitat within

the Riverside Lowlands and San Jacinto Foothills

Bioregions.

Objective 2: Include within the MSHCP Conservation Area at

least 8 Core Areas and interconnecting Linkages.

Core areas could include the following areas: 1) the

Prado Basin/Santa Ana River (9,670 acres); 2)

Temescal Wash including Alberhill Creek (includes

Subunit 3 of the Temescal Canyon Area Plan plus

Proposed Linkage 2 and Proposed Constrained

Linage 6; 4,290 acres); 3) Murrieta Creek (Subunit

1 of the Southwest Area Plan; 2,060 acres); 4)

Temecula Creek (Subunit 2 of the Southwest Area

Plan; 850 acres); 5) Lake Skinner/Diamond Valley

Lake area (including Rawson Canyon) (Existing

Core C, Proposed Extension of Existing Cores 5, 6,

7; 29,060 acres); 6) Vail Lake (Subunit 3 of the

Southwest Area Plan; 12,320 acres; 7) Wilson

Valley (Subunit 2 of the REMAP Area Plan; 33,540

acres) and 8) San Timoteo Canyon (Subunit 3 of

The Pass Area Plan; 2,290 acres). Each Core Area

will include at least 100 meters of undeveloped

landscape adjacent to the riparian woodland and

scrub Habitat where it occurs within the Criteria

Area.

Objective 3: Include within the MSHCP Conservation Area

additional areas within the Criteria Area identified as

important to the least Bell's vireo. This Objective

shall be met through implementation of the

Riparian/Riverine Areas and Vernal Pools policy

presented in Section 6.1.2 of the MSHCP, Volume

I. Wetland mapping assembled as part of that

Conservation for this species will be

achieved by the inclusion of at least 9,430

acres of suitable Conserved Habitat in the

MSHCP Conservation Area. Eight of the

Core Areas of the least Bell's vireo will be

conserved within large blocks of Habitat in

the MSHCP Conservation Area and

additional areas with few or no recorded

locations but that contain potential Habitat

are also conserved in accordance with the

wetland policy. The MSHCP has been

designed to preserve the very large

breeding population within the Prado

Basin/Santa Ana River area. Additionally,

the small patches of riparian Habitat and

the sites containing small numbers of

vireos are likely to be just as important as

the large population sites. These small

populations, documented above to be

largely preserved, are important to prevent

further isolation of remaining breeding

groups. Wetland mapping assembled as

part of the wetland policy shall be

reviewed as part of the project review

process and if riparian scrub and/or

woodland is identified on the wetland

maps and cannot be avoided, a focused

survey for least Bell's vireo shall be

conducted by a qualified biologist in

accordance with accepted protocols. If

survey results are positive, 90 percent of

the occupied portions of the property that

provide for long-term Conservation value

for the vireo shall be conserved in a

manner consistent with Conservation of

the vireo. For the Core Areas and the new

Approximately 2,780 acres of potential

Habitat for the least Bell's vireo will be

outside the Criteria Area and

Public/Quasi-Public designations, or

about 23 percent of the total potential

Habitat. It should be noted that

wetland Habitats located outside the

MSHCP Conservation Area, including

those present in the Mockingbird

Canyon area, will be subject to the

Riparian/Riverine Areas and Vernal

Pools policy presented in Section

6.1.2 of the MSHCP, Volume I.

However, the population of the least

Bell's vireo at Mockingbird Canyon is

not included in the MSHCP

Conservation Area. Of the 9 high

precision recent location points

located outside the MSHCP

Conservation Area, five are located

within suitable Habitat including

riparian scrub, southern willow scrub,

or open water/reservoir/pond and the

balance are located outside suitable

Habitat areas within existing

residential/ urban/exotic areas,

non-native grassland, or Riversidean

sage scrub.

Yes, see Section

6.1.2 (Protection

o f S p e c i e s

Associated with

Riparian/Riverine

Areas and Vernal

Pools)

3 3 General Management Measure 4. Reserve Managers will

ensure (once every 3 years) the continued use of, and

successful reproduction at, 75% of the known vireo occupied

Habitat (including any nesting locations identified in the MSHCP

Conservation Area in the future). Reserve Managers will manage

the known and future occurrences of this species with regard to

flood control measures, altered hydrology, competition with

non-native species, parasitism by brown-headed cowbird,

mining, grazing, and Habitat fragmentation. Reserve Managers

will buffer known and future nest sites from disturbance within

a 100-meter buffer. Reserve Managers will manage

future-identified nesting localities within the MSHCP

Conservation Area.

Page 70: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-70

policy shall be reviewed as part of the project

review process and if riparian scrub and/or

woodland is identified on the wetland maps and the

Habitat will not be avoided as part of the project, a

focused survey for least Bell's vireo shall be

conducted by a qualified biologist in accordance

with accepted protocol. If survey results are

positive, 90 percent of the occupied portions of the

property that provide for long-term Conservation

value for the vireo shall be conserved in a manner

consistent with Conservation of the vireo. This will

involve including 100 meters of undeveloped

landscape adjacent to the Habitat conserved.

Objective 4: Within the MSHCP Conservation Area, maintain

(once every 3 years) the continued use of, and

successful reproduction at 75 percent of the known

vireo occupied Habitat (including any nesting

locations identified in the MSHCP Conservation Area

in the future). Successful reproduction is defined

as a nest which fledged at least one known young.

areas to be conserved in accordance with

Objective 3, Conservation of suitable

Habitat will include 100 meters of

undeveloped landscape adjacent to the

Habitat conserved. Conservation of the

least Bell's vireo will provide for the

continued use of, and successful

reproduction at 75 percent of the known

vireo occupied Habitat (including any

nesting locations identified in the MSHCP

Conservation Area in the future).

The population viability analysis conducted

by the USFWS as part of the listing

package (USFWS 1998) indicated the least

Bell's vireo populations exceeded the

minimum viable population size with a less

than five percent probability of extinction

over a 100-year period. The results of

zero probability are due to the sizes and

growth rates of each population as well as

their interconnectedness through

dispersal.

Lincoln’s sparrow

(Melospiza lincolnii)-

breeding

1 The Lincoln's sparrow has a sparse and widespread

distribution throughout the MSHCP Plan Area within a

wide variety of Habitats. It occurs within the lowland and

foothills Bioregions of the Plan Area as a transient in the

spring and fall and may winter within the area. Although

there are few documented records of the species it has

been reported as common within the lowland and foothills

areas as a winter transient and migrant in a variety of

Habitats.

Because it is widespread as a wintering bird within the

Plan Area and population levels rangewide appear to be

stable, it is anticipated that this species will respond well

to a landscape level of management for its wintering

occurrence within the Plan Area.

Lincoln's sparrow is a rare breeder in the Plan Area within

the mountain Bioregions. There are approximately 1,050

Objective 1: Include within the MSHCP Conservation Area at

least 470 acres of suitable breeding Habitat

including montane riparian, riparian scrub and wet

meadow within the San Bernardino Mountains and

San Jacinto Mountains Bioregions.

Objective 2: Include within the MSHCP Conservation Area

190,390 acres of suitable wintering habitat

including chaparral, coastal sage scrub, grassland,

freshwater marsh, Peninsular juniper woodland,

riparian scrub, woodland, and forest, oak woodland

and forest, and Riversidean alluvial fan sage scrub

in Riverside Lowland and San Jacinto Foothills

Bioregions.

Objective 3: Within the MSHCP Conservation Area, maintain

occupancy within 3 large Core Areas (100 percent)

in at least 1 year out of 5 consecutive-year period.

Conservation for this species will be

achieved by inclusion of at least 470 acres

of suitable Conserved Habitat for breeding

and 190,390 acres of suitable Conserved

Habitat for wintering. Incidental Take of

nesting Lincoln's sparrow is not included

in this permit until Conservation of the

species in the Plan Area has been

demonstrated by reaching Objective 2.

The Incidental Take of the Lincoln's

sparrow is difficult to quantify due to

our limited knowledge of its

distribution and abundance within the

Plan Area. The maximum level of

Incidental Take of Lincoln's sparrow

can be anticipated by the loss of the

number of acres of Habitat that will

become unsuitable for this species.

About 580 acres (55 percent) of

potential breeding Habitat for the

Lincoln's sparrow will be outside the

Criteria Area and Public/Quasi-Public

lands, and individuals within this

Habitat will be subject to Incidental

Take consistent with the Plan upon

satisfaction of Objective 2 above. Of

this area, approximately 30 acres (3

None 8 General Management Measures 1 and 4.

Page 71: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-71

acres of montane riparian and wet meadow in the Plan

Area. Approximately, 470 of these would be included in

the MSHCP Conservation Area. Because Lincoln's

sparrow nesting habitat is very restricted in the Plan Area,

55 percent of it would be lost, and there is no information

about the relative use or importance of the conserved

habitat versus the unconserved Habitat, Incidental Take of

nesting Lincoln's sparrow is not included in this permit

until conservation of the species in the Plan Area has

been demonstrated by reaching Objective 2.

In order for this species to become a Covered

Species Adequately Conserved, the following

conservation must be demonstrated: Include within

the MSHCP Conservation Area at least 100 acres in

3 Core Areas. Core Areas may include the

following: (1) Tahquitz Valley; (2) Round Valley; (3)

Garner Valley. The three Core Areas will be large,

consisting of a minimum of 50 acres of montane

meadow, wet montane meadow, and edges of

montane riparian or riparian scrub. The Core Areas

will be demonstrated to support at least 20

Lincoln's sparrow pairs with evidence of successful

reproduction within the first 5 years after permit

issuance. Successful reproduction is defined as a

nest which fledged at least one known young.

p e r c e n t ) w i l l b e w i t h i n

Rural/Mountainous designation areas.

Although these areas will not be part

of the managed MSHCP Conservation

A r e a a n d t h e e x i s t i n g

zoning/ordinances for these areas do

not preclude development and could

allow substantial fragmentation and/or

degradation of Habitat for proposed

covered species, the anticipated levels

of development in these areas may be

consistent with the continued

presence of the Lincoln's sparrow,

although Lincoln's sparrow tends to be

of insular distribution for nesting and

thus may be sensitive to fragmentation

of its suitable breeding Habitat. Take

of nests of Lincoln's sparrow is not

covered by the MSHCP Plan. About

219,670 acres (54 percent) of

potential wintering Habitat for the

Lincoln's sparrow will be outside the

Criteria Area and Public/Quasi-Public

Lands and individuals within this

Habitat will be subject to Incidental

Take consistent with the Plan.

loggerhead shrike

(Lanius ludovicianus)

2 The loggerhead shrike is widely but patchily distributed

throughout lower elevations of the Plan Area within

suitable Habitat. Habitat requirements of the loggerhead

shrike are known to include open sparse vegetation for

foraging and trees and shrubs for nesting. Core areas

include the Prado Basin/Santa Ana River, Lake

Mathews-Estelle Mountain, Wasson Canyon, Wildomar,

Temecula Creek, Wilson Valley, Quail Valley, San Jacinto,

Lake Perris/Mystic Lake/San Jacinto Wildlife Area,

Moreno Valley, Badlands, and scattered within the larger

area of Homeland/Winchester/ Menifee area. Given these

well known Habitat requirements and specific locations

that are considered Core Areas, it is anticipated that this

species will respond to a landscape level of management

with site specific requirements.

Objective 1: Include within the MSHCP Conservation Area at

least 167,590 acres of suitable foraging and nesting

Habitat for the loggerhead shrike including

agriculture, grassland, cismontane alkali marsh,

playa and vernal pool, desert scrubs, Riversidean

alluvial fan sage scrub, coastal sage scrub,

peninsular juniper woodland and scrub, riparian

scrub, woodland and forest, and oak woodlands

and forest.

Objective 2: Include within the MSHCP Conservation Area at

least 8 of 12 breeding and foraging locations

constituting Core Areas including Prado Basin/Santa

Ana River (9,670 acres), Lake Mathews-Estelle

Mountain area (Existing Core C plus Proposed

Extended Existing Core 2; 23,710 acres), Wasson

Conservation for this species will be

achieved by inclusion of at least 167,590

acres of suitable Conserved Habitat and 8

Core Areas which are composed of large

blocks of Habitat within the MSHCP

Conservation Area. The Core Areas are

provided with connections of Proposed or

Existing Linkages or Constrained Linkages

which connect the Proposed and Existing

Cores. In addition, the MSHCP Plan will

maintain (once every 8 years) the

continued use of, and successful

reproduction within, 75 percent of the

Core Areas. Successful reproduction is

defined as producing fledglings from a

nesting attempt. The current population

The Incidental Take of the loggerhead

shrike is difficult to quantify due to our

limited knowledge of its distribution

and abundance within the Plan Area.

The maximum level of Incidental Take

of loggerhead shrike can be

anticipated by the loss of the number

of acres of Habitat that will become

unsuitable for this species. About

318,540 acres (66 percent) of Habitat

for the loggerhead shrike will be

outside the Criteria Area and

Public/Quasi-Public designations and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Four core population

None 8 8 Reserve Managers will manage Habitat Linkages and movement

corridors between Core Population Areas in order to allow for

dispersal and movement of loggerhead shrikes throughout the

Plan Area and to areas outside of the planning area. Reserve

Managers will manage known and future occurrences of this

species for Habitat conversion and fertilizer and pesticide use.

Reserve Managers will ensure (once every 8 years) the

continued use of, and successful reproduction at, 75% of the

Core Areas.

Page 72: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-72

Canyon (Subunit 5 of the Elsinore Area Plan; 2,320

acres), Temecula Creek (Subunit 2 of the

Southwest Area Plan; 850 acres), Wilson Valley

(Subunit 2 of the REMAP Area Plan; 33,540 acres),

Quail Valley (Proposed Linkage 7; 3,400 acres),

Lake Perris/Mystic Lake/San Jacinto Wildlife Area

(Existing Core H; 17,470 acres), and Badlands

(Proposed Core 3; 24,920 acres).

Objective 3: Within the MSHCP Conservation Area, maintain

(once every 8 years) the continued use of, and

successful reproduction within, 75 percent of the

Core Areas. Successful reproduction is defined as

a nest which fledged at least one known young.

size of the loggerhead shrike is unknown,

however a sizable data base is present

within the UCR database and the species

appears well represented throughout the

MSHCP Plan Area except in the desert and

high elevation areas. The literature

documents the usage of desert areas,

thus desert Habitat has been included

within the Conservation analysis, however

data point locations are likely lacking due

to low survey effort in desert areas. Some

concerns have been expressed regarding

the impact the fire ant may have on the

loggerhead shrike. Currently there is one

known location of the fire ant. The area is

currently under quarantine and efforts are

being made to control and eradicate the

ant. The location is outside the MSHCP

Conservation Area and will have no effect

on the Conservation analysis of the

loggerhead shrike.

areas not included within the MSHCP

Conservation Area include the

Wildomar area, the area around San

Jacinto except for a few small vernal

pool preserve areas, Moreno Valley,

and the scattered locations within the

Homeland/ Winchester/ Menifee area.

MacGillivray’s warbler

(Oporornis tolmiei)

1 The MacGillivray's warbler has a sparse and widespread

distribution throughout the MSHCP Plan Area within a

variety of shrubby and riparian Habitats. It occurs within

the lowland and foothill Bioregions of the Plan Area as a

transient in the spring and fall but does not winter within

these Bioregions. It has been documented within the

literature as occurring commonly within the lowland and

foothills area as a transient that may use densely

vegetated shrub and scrub Habitats. However, there are

few documented records of the species, probably

because it is relatively common and observations may not

be recorded. It breeds within the Plan Area within the

mountain Bioregions in scrub and forested Habitats.

Although it has few documented records, the literature

documents its occurrence within the mountain regions of

the Plan Area and that the populations have increased

significantly within the mountain regions of the Plan Area.

Objective 1: Include within the MSHCP Conservation Area at

least 418,780 acres of riparian scrub, forest, and

woodland, oak woodland and forest, montane

coniferous forest, coastal sage scrub, chaparral,

Riversidean alluvial fan sage scrub, and desert

scrub Habitats for breeding, dispersal, and transient

movements. The breeding and transient movement

areas have been combined in this analysis because

this species uses the same Habitats for both parts

of the life cycle and there may be some overlap

between breeding areas and migration areas.

Conservation for this species will be

achieved by inclusion of at least 418,780

acres of suitable Conserved Habitat

including riparian scrub, forest, and

woodland, oak woodland and forest,

montane coniferous forest, coastal sage

scrub, chaparral, Riversidean alluvial fan

sage scrub, and desert scrub Habitats for

breeding, dispersal, and transient

movements. The MSHCP Conservation

Area has been designed to preserve the

large blocks of areas that contain a variety

of potentially suitable Habitat for foraging

use during migration as well as very large

blocks that contain potentially suitable

nesting Habitat for the species.

About 240,570 acres (36 percent) of

potential Habitat for the MacGillivray's

warbler will be outside the Criteria

Area or Publi c /Quasi-Publ i c

designations, and individuals within

these areas will be subject to

Incidental Take consistent with the

Plan.

None 8 General Management Measures 1 and 4.

merlin

(Falco columbarius)

1 The merlin has a sparse and widespread distribution

throughout the MSHCP Plan Area within almost every

Habitat that occurs within the Plan Area. It occurs within

Objective 1: Include within the MSHCP Conservation Area at

least 193,840 acres of agriculture (field crops),

grassland, freshwater marsh, cismontane alkali

Conservation of this species will be

achieved by the inclusion of at least

193,840 acres of suitable Conserved

About 302,430 (61 percent) of

potential Habitat for the merlin will be

outside the Criteria Area and

None 8 General Management Measure 1.

Page 73: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-73

the Plan Area as a transient in the spring and fall and may

occasionally winter within the area. It does not require

specific conditions or locations for nesting because it

does not nest in the region. It is an opportunistic predator

that may forage anywhere in the area.

marsh, playa and vernal pool, desert scrubs,

Riversidean alluvial fan sage scrub, coastal sage

scrub, peninsular juniper woodland and scrub,

riparian scrub, woodland and forest, and oak

woodlands and forest Habitats.

Habitat including agriculture (field crops),

grassland, freshwater marsh, cismontane

alkali marsh, playa and vernal pool, desert

scrubs, Riversidean alluvial fan sage

scrub, coastal sage scrub, peninsular

juniper woodland and scrub, riparian

scrub, woodland and forest, and oak

woodlands and forest Habitats.

Additionally, although there are no Core

Areas for this species, several large

blocks of Habitat supporting the few

known foraging locations, and potential

foraging locations of the merlin will be

conserved in the MSHCP Conservation

Area, including the Prado Basin, Santa

Ana River, Lake Mathews-Estelle

Mountain, Wilson Creek, Mystic Lake/ San

Jacinto Wildlife Area, and Lake

Skinner/Diamond Valley Lake. These

Habitats and areas provide potential

foraging for the merlin during transient and

winter visits. The current population size

of the merlin is unknown and may vary

from year to year.

Public/Quasi-Public Lands and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. None of the major

areas, Prado Basin, Santa Ana River,

Mystic Lake/San Jacinto Wildlife Area,

Lake Skinner/Diamond Valley Lake

area, Wilson Valley, and Lake

Mathews-Estelle Mountain, where the

merlin has been observed in the past

are outside the MSHCP Conservation

Area.

mountain plover

(Charadrius montanus)

3 The mountain plover is narrowly distributed at relatively

few locations within the Plan Area in suitable Habitat. The

mountain plover uses playas and vernal pool, grassland,

and some agriculture Habitats during the winter in the

Plan Area. Although playa and vernal pool Habitat is well

identified for the Plan Area, it encompasses a relatively

small portion. The remaining Habitats, grassland and

agriculture land, are well distributed within the Plan Area

but the mountain plover uses only a small portion of what

is available. This species occurs within Core Areas that

it uses for its winter visits. It also requires specific

Habitat conditions within these Core Areas. Because the

mountain plover requires specific conditions, occurs in

few locations within a broad Habitat category, and uses

a well defined Habitat that is narrowly distributed, this

species will require site specific considerations,

protection of preferred Habitat, and species specific

Objective 1: Include within the MSHCP Conservation Area at

least 6,710 acres of suitable Habitat for the

mountain plover including playa and vernal pool

Habitat.

Objective 2: Include within the MSHCP Conservation Area at

least 4 Core Areas and interconnecting Linkages.

The Core Areas will consist of two "large" areas (at

least 2,500 acres of suitable Habitat: playa,

grassland, fallow agriculture) and two smaller areas

(at least 1,000 acres of suitable Habitat). Core

Areas shall include the following areas: San Jacinto

River floodplain (Proposed Core 5, Existing

Constrained Linkage C, Proposed Extension of

Existing Core 4, and Proposed Constrained Linkage

19; 7,320 acres), Mystic Lake/San Jacinto Wildlife

Area (Existing Core H; 17,470 acres), and the playa

Conservation for this species will be

achieved by inclusion of at least 6,710

acres of suitable Conserved Habitat and 4

Core Areas within large blocks of Habitat

in the MSHCP Conservation Area. The

Core Areas will consist of two large and

two small areas of at least 2,500 and

1,000 acres of suitable grassland,

agriculture, and playa Habitats,

respectively. An additional two potential

Core Areas also are included in the

MSHCP Conservation Area. The current

population size of the mountain plover is

unknown, due to its nomadic wintering

and transient movement habits and a

paucity of focused surveys for the

species. The Conservation Strategy for

The Incidental Take of the mountain

plover is difficult to quantify due to our

limited knowledge of its distribution

and abundance within the Plan Area.

The maximum level of Incidental Take

of mountain plover can be anticipated

by the loss of the number of acres of

Habitat that will become unsuitable for

this species. About 1,160 acres (15

percent) of potential wintering Habitat,

composed of playa and vernal pool

Habitat, for the mountain plover will be

outside the Criteria Area and

Public/Quasi-Public designations and

individuals within these areas are

subject to Incidental Take consistent

with the Plan. The Winchester area,

None 8 Reserve Managers will manage this species with regard to

farming, grazing, conversion of grassland Habitat and decline of

native herbivores.

Page 74: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-74

management conditions as a Group 3 species. west of Hemet (Proposed Noncontiguous Habitat

Block 7; 1,250 acres), and may include areas

adjacent to Lake Elsinore (Subunit 7 of Elsinore

Area Plan; 1,810 acres), Lake Skinner/Diamond

Valley Lake (Existing Core C plus Proposed

Extension of Existing Cores 5, 6, 7; 29,060 acres),

and Lake Matthews (Existing Core C plus Proposed

Extension of Existing Core 2; 23,710 acres).

the species depends on the preservation

to the extent possible of existing occupied

Habitat and the identification and

management of additional suitable Habitat

throughout the Plan Area using fire as a

management tool to create suitable Habitat

out of the agriculture lands within the

MSHCP Conservation Area.

historically a potential Core Area, is

outside of the MSHCP Conservation

Area, however this area may no longer

function as a Core Area.

mountain quail

(Oreortyx pictus)

1 The mountain quail has a reported wide distribution within

all of the mountain ranges west of the deserts and of the

northern interior of California. It predictably inhabits

suitable montane chaparral and brushy vegetation within

coniferous forests. This species has been recorded

within the U.S. Forest Service lands. It may occur

throughout a greater portion of suitable Habitat within the

MSHCP Plan Area, but no records exist in the MSHCP

database. Other sources conclude it is widely distributed

within suitable Habitat. Because it predictably uses

suitable brushy montane chaparral and occurs widely

throughout the Plan Area, it should respond well to a

landscape level of management.

Objective 1: Include within the MSHCP Conservation Area at

least 234,940 acres of suitable Habitat including

chaparral, oak woodland, and montane coniferous

woodland within large blocks in the Desert

Transition (27,000 acres), San Bernardino

Mountains (8,490 acres), San Jacinto Mountains

(126,160 acres) and Santa Ana Mountains (73,290

acres) Bioregions.

Conservation for this species will be

achieved by inclusion of at least 234,940

acres of suitable Conserved Habitat

including chaparral, oak deciduous

woodland and forest, and coniferous

forest within the Bioregions of the Desert

Transition, San Bernardino Mountains, San

Jacinto Mountains, and Santa Ana

Mountains. In addition, large blocks of

Habitat containing montane chaparral,

deciduous and coniferous woodland

Habitat with Habitat Linkages provided to

connect these large blocks of breeding

Habitat to lower elevation areas for

wintering use are in the MSHCP

Conservation Area.

About 93,800 acres (29 percent) of

potential Habitat for the mountain quail

will be outside the Criteria Area and

Public/Quasi-Public designations and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Additionally,

approximately 32,730 acres of

potential Habitat (10 percent) are

designated Rural/Mountainous and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan.

None 8 General Management Measure 1.

Nashville warbler

(Vermivora ruficapilla)

2 The Nashville warbler has been recorded in the literature

and within the UCR database in the San Bernardino

National Forest within the Plan Area as a likely breeding

bird. It is widely distributed but uncommon during

migration periods. Core breeding season areas are few

and important to Conservation of the species. In the Plan

Area, two core breeding season areas have been

identified, Lake Fulmor and Pine Cove. Additional

observations within the Plan Area primarily occur in

lowland Bioregions and probably represent spring or fall

transients. Because the Nashville warbler uses a variety

of Habitats within montane Bioregions for breeding

(including chaparral, riparian, deciduous woodland, and

coniferous woodland), occurs in a variety of Habitats for

migrant movements in all Bioregions (including brush and

scrub Habitats, desert scrub, and wooded Habitats), and

has specific locations that are identified as core breeding

season areas, it is included in Group 2.

Objective 1: Include within the MSHCP Conservation Area at

least 209,490 acres of suitable breeding Habitat

including chaparral, montane coniferous forest,

riparian scrub, woodland, and forest, and oak

woodlands in montane Bioregions.

Objective 2: Include within the MSHCP Conservation Area at

least three Core Areas. Core Areas will include the

known breeding locations at Lake Fulmor and Pine

Cove (represented by MSHCP Conservation Areas

within the San Bernardino National Forest; 149,750

acres) and one additional breeding area identified

within the MSHCP Conservation Area.

Objective 3: Include within the MSHCP Conservation Area at

least 209,290 acres of suitable dispersal or

migration Habitat and interconnecting Linkages,

including chaparral, coastal sage scrub, desert

Conservation for this species will be

achieved by inclusion of at least 418,780

acres of suitable Conserved Habitat for

breeding and dispersal/migratory

movements. In addition, three Core

Areas, including Pine Cove and Lake

Fulmor plus one additional location within

the Forest Service or MSHCP

Conservation Area, will be conserved

within the MSHCP Conservation Area. The

MSHCP has been designed to preserve

the large blocks of areas that contain a

variety of potentially suitable Habitats for

foraging use during migration as well as

blocks of currently unknown sizes that

contain potentially suitable nesting Habitat

for the species.

About 240,570 acres (about 36

percent) of potential breeding and

dispersal/migration Habitat for the

Nashville warbler will be outside the

Criteria Area or Public/Quasi-Public

designations, and individuals within

these areas will be subject to

Incidental Take consistent with the

Plan. The area outside the MSHCP

Conservation Area includes 71,100

acres of breeding Habitat within the

mountain Bioregions and 169,470

acres of dispersal/ migration Habitat.

Of this, approximately 91,510 acres

(14 percent) of potential Habitat are

located within Rural/Mountainous

designation areas. While the

Rural/Mountainous areas are not

None 8 General Management Measure 4. Reserve Managers will

manage the known and future nesting locations of this species

for loss of Habitat due to modification by humans.

Page 75: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-75

scrubs, Riversidean alluvial fan sage scrub, and oak

woodland and forest for dispersal during migration.

These Habitats will be conserved in all Bioregions of

the Plan Area but do not include the acreage

included in Objective 1.

included wi th in the MSHCP

Conservation Area and will not be

managed for the benefit of wildlife, the

anticipated levels of development in

these areas will likely be consistent

with maintaining some Habitat for the

Nashville warbler. Two point locations

will be in the Rural/Mountainous zone.

Two high precision recent points are

located outside the MSHCP

Conservation Area and are located in

non-native grassland observed during

migration due to the lowland location.

The known nest location areas are not

outside the MSHCP Conservation

Area.

northern goshawk

(Accipiter gentilis)

2 The northern goshawk has been observed in two nest

locations within the MSHCP Plan Area. There is an

additional potential nest site within Tahquitz Valley and it

has generally been documented as occurring as a

breeding bird between an elevation of 2,000 to 2,700

meters (Garrett and Dunn 1981). It may occur as a

transient migrant almost anywhere else within the Plan

Area, has been found in semi-wooded areas in the

lowlands, and has been recorded as a migrant within the

vicinity of Hemet. The northern goshawk is widely

distributed outside of the Plan Area within North America,

but not in southern California. Due to its requirements for

a large territory as a large predatory bird, it would not be

expected to have a large population as a nesting species

within the Plan Area and within its preferred Habitat. It is

well studied and documented for using mature forest

lands. This species is considered to be a Group 2

species because its Conservation requires integration of

Habitat and site specific requirements.

Objective 1: Include within the MSHCP Conservation Area at

least 34,020 acres of suitable nesting and wintering

Habitat including oak woodland and forest and

montane coniferous Habitat within the San

Bernardino Mountains and San Jacinto Mountains

Bioregions. These Bioregions provide the suitable

nesting elevation of 2,000 to 2,700 meters as well

as lower elevation Habitat for wintering.

Objective 2: Within the MSHCP Conservation Area, protect and

buffer from disturbance the 2 known nest sites

(Lake Fulmor and San Jacinto Wilderness area), the

possible nest site within Tahquitz Valley and any

additional nesting locations. Protection is the

Conservation of at least 1.6 square kilometers of

suitable nesting Habitat within the MSHCP

Conservation Area around each known nest.

Buffering of the nest sites will include limiting

human activities within a 250 meter radius around

each of the nest site locations during the breeding

season.

Objective 3: Within the MSHCP Conservation Area, maintain

(once every three years), the continued use of, and

successful reproduction at a minimum of 75

percent of the known nesting localities. Successful

Conservation for this species will be

achieved by inclusion of at least 34,020

acres of suitable Conserved Habitat

including oak woodland and forest and

montane coniferous forest within the San

Jacinto Mountains and San Bernardino

Mountains Bioregions. In addition the

known nest site locations at Fulmor

Lake/Lawlor Lodge, in the vicinity of the

San Jacinto Wilderness area in the San

Jacinto Mountains, and the potential nest

site location at Tahquitz Valley are within

the MSHCP Conservation Area.

About 12,270 acres (27 percent) of

potential Habitat for the northern

goshawk will be outside the Criteria

Area and Public/Quasi-Public and

individuals within this Habitat will be

subject to Incidental Take consistent

with the Plan. No nest sites are

known outs ide the MSHCP

Conservation Area; however no

systematic surveys have been

conducted to locate nest sites for this

species outside the MSHCP

Conservation Area. No Take of active

nest sites will be permitted.

None 3 3 Reserve Managers will manage this species in order to

demonstrate continued (once every three years) use and

successful reproduction at a minimum of 75% of the known

nesting localities (including any nesting locations identified in the

MSHCP Conservation Area in the future). Reserve Managers will

protect and buffer from disturbance the known nest sites and

any additional nesting locations found in the MSHCP

Conservation Area. Buffering of the nest sites will include

limiting human activities within a 250 meter radius around each

of the nest site locations during the breeding season. Protection

is the Conservation at least 1.6 square kilometers of suitable

nesting Habitat around each known nest. Reserve Managers will

manage this species with regard to falconry and logging.

Page 76: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-76

reproduction is defined as a nest which fledged at

least one known young.

northern harrier

(Circus cyaneus)

3 The northern harrier occurs in a widely scattered

distribution predominantly throughout the lowland and

foothills Bioregions but may occur sparsely within

suitable Habitat in the mountain Bioregions and rarely as

a wintering bird within the Desert Transition Bioregion

within the Plan Area. Although there are a few known

breeding locations (Mystic Lake/San Jacinto Wildlife Area,

Lake Skinner area, Chino Hills, Lake Mathews-Estelle

Mountain, Lake Elsinore grasslands/Collier Marsh, Vail

Lake/Wilson Valley/east Temecula Creek, and Garner

Valley), most of the recorded northern harrier

occurrences are of wintering birds. This species has

specific Habitat requirements for breeding (primary

Habitats: cismontane alkali marsh, freshwater marsh,

playas and vernal pools, and grassland) but uses a wider

array of Habitat for foraging and wintering (secondary

Habitats: agriculture land, Riversidean alluvial fan sage

scrub, and coastal sage scrub). Although not

documented within the CNDDB and UCR databases, the

Prado Basin/Santa Ana River contains substantial

amounts of suitable Habitat and seems a likely future or

undocumented breeding location.

Objective 1: Include within the MSHCP Conservation Area at

least 50,020 acres of suitable primary breeding and

foraging Habitat for the northern harrier including

grasslands, freshwater marsh, playa and vernal

pool, and cismontane alkali marsh.

Objective 2: Include within the MSHCP Conservation Area the

known and historic breeding locations at 1) Mystic

Lake/San Jacinto Wildlife Area (Existing Core H;

17,470 acres), 2) the Lake Skinner/Diamond Valley

Lake area (Existing Core C plus Proposed Extension

of Existing Cores 5, 6, 7; 29,060 acres), 3) Chino

Hills (Proposed Extension of Existing Core 1; 270

acres), 4) Lake Mathews-Estelle Mountain (Existing

Core C plus Proposed Extension of Existing Core 2;

23,710 acres), 5) Lake Elsinore grasslands/Collier

Marsh (Subunit 7 of Elsinore Area Plan; 1,810

acres), 6) Vail Lake/Wilson Valley/east Temecula

Creek (Proposed Core 7; 50,000 acres), and 7)

Garner Valley (represented by suitable Conserved

Habitat within the San Jacinto Mountains Bioregion;

1,850 acres excluding 490 acres of range

allotment). Include within the MSHCP Conservation

Area an additional 17,560 acres of suitable breeding

Habitat at Potrero (represented by Subunit 1 of The

Pass Area Plan) and the Prado Basin/Santa Ana

River.

Objective 3: Include within the MSHCP Conservation Area at

least 104,140 acres of suitable secondary foraging

and wintering Habitat including agriculture land,

Riversidean alluvial fan sage scrub, and coastal

sage scrub.

Objective 4: Include within the MSHCP Conservation Area and

buffer from disturbance the known nesting locations

at the localities listed in Objective 2. Buffering of

the nest sites will include Conservation of Habitat

within a 250 meter radius around each of the nest

site locations and may include a variety of Habitats.

Conservation for this species will be

achieved by inclusion of at least 50,020

acres of suitable primary Conserved

Habitat and 104,140 acres of suitable

secondary Conserved Habitat and 7 Core

Areas and 2 potential Core Areas within

large blocks of Habitat in the MSHCP

Conservation Area. The MSHCP

Conservation Area will maintain (once

every 5 years) the continued use of, and

successful reproduction at 75 percent of

the known nesting areas (including any

nesting locations identified in the MSHCP

Conservation Area in the future) and will

conserve within the MSHCP Conservation

Area and buffer from disturbance the

known nesting locations within the core

breeding areas listed above. Buffering of

the nest sites will include Conservation of

Habitat within a 250 meter radius around

each of the nest site locations and may

include a variety of Habitats. The current

population size of the northern harrier is

unknown and most locations are

observations of wintering/migrating birds.

However, historic breeding locations

occur within the Mystic Lake/San Jacinto

Wildlife Area, Lake Skinner, Lake Elsinore

g rass l a nd/Co l l i e r Marsh , Lake

Mathews-Estelle Mountain, Chino Hills,

and Vail Lake/Wilson Valley/eastern

Temecula Creek, and Garner Valley areas

which are within conserved areas.

The Incidental Take of the northern

harrier is difficult to quantify at this

time owing to our limited knowledge of

the precise location and extent of

nesting sites and the fact that losses

may be masked by fluctuations in

abundance and distribution during the

life of the permit. However, the level

of Take of the northern harrier can be

anticipated by the loss of the number

of acres of Habitat that will become

unsuitable for this species.

About 284,860 acres (65 percent) of

potential Habitat for the northern

harrier will be outside the Criteria Area

and Public/Quasi-Public designations,

and individuals within this Habitat will

be subject to Incidental Take

consistent with the Plan. Of the

primary Habitats, 105,380 acres will

be outside the MSHCP Conservation

Area, or about 68 percent of the

potential primary Habitat, most of

which is grassland Habitat. Of the

secondary Habitats, about 179,480

acres will be outside the MSHCP

Conservation Area, or about 63

percent of the potential secondary

Habitats, most of which is agriculture

Habitat. It should also be noted that

wetland Habitats located outside the

MSHCP Conservation Area will be

subject to the Protection of Species

Associated with Riparian/Riverine

Areas and Vernal Pools policy

presented in Section 6.1.2 of the

MSHCP, Volume I. Based on recent

breeding location information, a

breeding location is recorded for

None 5 5 Reserve Managers will manage this species in order to maintain

(once every 5 years) the continued use of, and successful

reproduction at, 75% of the known nesting areas (including any

nesting locations identified in the MSHCP Conservation Area in

the future). Reserve Managers will conserve and buffer from

disturbance the known nesting locations listed in Objective 2 of

the Species Account. Buffering will include the Conservation of

Habitat within a 250 meter radius around each of the nest site

locations and may include a variety of Habitats. Particular

management emphasis will be given to Habitat loss and

conversion, fire and fire abatement measures during the early

stages of the breeding cycle.

Page 77: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-77

Objective 5: Within the MSHCP Conservation Area, maintain

(once every 5 years) the continued use of, and

successful reproduction at 75 percent of the known

nesting areas (including any nesting locations

identified in the MSHCP Conservation Area in the

future). Successful reproduction is defined as a

nest which fledged at least one known young.

Garner Valley. A total of 490 acres of

this Core breeding Area is located

within the Garner Range Allotment and

is considered to not be conserved

although it is within the San

Bernardino National Forest. No Take

of active nest sites will be permitted.

A total of 36 point localities will be

outside of the MSHCP Conservation

Area, 10 of which are recorded for

developed areas.

Other areas not conserved where the

northern harrier has been documented

to occur but that have not been

documented for breeding locations

include parts of the Temecula/Murrieta

Hot Springs area, San Jacinto, Moreno

Valley, Hemet, Santa Rosa Plateau

outside of the Santa Rosa Plateau

Nature Reserve, and Beaumont.

osprey

(Pandion haliaetus)

2 The osprey is relatively widely distributed throughout the

MSHCP Plan Area within suitable Habitat. It occurs at

almost every open water body within the Plan Area.

There are several areas that appear to be Core Areas

including the Santa Ana River, Lake Mathews, Lake

Elsinore, Canyon Lake, Vail Lake, Lake Skinner, Lake

Perris, Mystic Lake, and Lake Hemet. Although it has not

been documented to nest within the Plan Area, there is

suitable Habitat for nesting and nesting locations will be

important to conserve.

Objective 1: Include within the MSHCP Conservation Area at

least 10,340 acres of open water Habitat at the

following seven locations: Lake Mathews, Diamond

Valley Lake, Lake Skinner, Lake Elsinore, Vail Lake,

Lake Perris, and Mystic Lake/San Jacinto Wildlife

Area.

Objective 2: Include within the MSHCP Conservation Area at

least 5,520 acres of suitable riparian and open

water Habitat within the Prado Basin and Santa Ana

River.

Objective 3: A 100-meter buffer will be established around open

water bodies identified in Objective 1 as they are

incorporated into the MSHCP Conservation Area.

Conservation for this species will be

achieved by inclusion of at least 15,860

acres of suitable Conserved Habitat,

including open water and riparian Habitat

in the Prado Basin/Santa Ana River, and

the establishment of a 100-meter buffer

around the open water bodies as they are

incorporated into the MSHCP Conservation

Area. The current population size of the

osprey is unknown, and it has not been

confirmed as to whether or not it is a

breeding bird in the MSHCP Plan Area.

About 2,140 acres (12 percent) of

potential Habitat for the osprey will be

outside the Criteria Area and

Public/Quasi-Public designations and

individuals in this Habitat will be

subject to Incidental Take consistent

with the Plan. Potential Core

population Areas not included within

the MSHCP Conservation Area include

Canyon Lake and Lake Hemet. No

Take of active nest sites will be

permitted.

None 8 General Management Measure 4. Reserve Managers will

manage any nesting locations known or identified in the MSHCP

Conservation Area in the future. Reserve Managers (including at

Lake Perris) will identify, protect, buffer from disturbance with a

100-meter buffer (buffering consistent with the recreational

activities at Lake Perris), and monitor through time existing and

future-identified nesting and foraging Habitat in the MSHCP

Conservation Area. Management emphasis will be given to

logging and firewood harvesting and pesticide use.

peregrine falcon

(Falco peregrinus)

1 The peregrine falcon has a wide but sparse distribution

throughout the MSHCP Plan Area within its suitable

Habitat. Although is nest site is located on the County

Building in downtown Riverside, it is predominantly a fall

transient with occasional wintering and rare spring

Objective 1: Include within the MSHCP Conservation Area at

least 10,340 acres of open water Habitat at the

following seven open water bodies and one

drainage: Lake Mathews, Diamond Valley Lake,

Lake Skinner, Lake Elsinore, Vail Lake, Lake Perris,

Conservation for this species will be

achieved by inclusion of at least 10,340

acres of suitable Conserved Habitat

including open water at Lake Mathews,

Diamond Valley Lake, Lake Skinner, Lake

Approximately 2,140 acres (12

percent) of potential Habitat for the

peregrine falcon will be outside the

Criteria Area and Public/Quasi-Public

land designations and individuals

None 8 General Management Measure 4. Reserve Managers will

manage the known and future occurrences of this species with

regard to pesticide use. Reserve Managers will identify, protect,

buffer from disturbance with a 100-meter buffer, and monitor

through time the open water bodies identified in Objective 1 of

Page 78: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-78

transient movements. It occurs or has occurred at

almost every open water body within the Plan Area and

occurs within the Prado Basin on a regular basis.

Mystic Lake/San Jacinto Wildlife Area, and Prado

Basin/Santa Ana River and the 5,520 acres of

suitable riparian Habitat within the Prado

Basin/Santa Ana River.

Objective 2: A 100-meter buffer will be established around open

water bodies identified in Objective 1 as they are

incorporated into the MSHCP Conservation Area.

Elsinore, Vail lake, Lake Perris, Mystic

Lake/San Jacinto Wildlife Area, and Prado

Basin/Santa Ana River and 5,520 acres of

suitable Conserved Habitat including

riparian Habitat within the Prado Basin/

Santa Ana River. The current population

size of the peregrine falcon is unknown

because it is a casual visitor to the area.

There is one nest site currently known for

the County Building in downtown

Riverside and although this nest site is

outside the MSHCP Conservation Area, no

Take of raptor nests is authorized. The

species appears to respond to elevated

waterfowl populations within reservoirs

during migration and winter periods.

Therefore, local densities will be expected

to fluctuate.

within these areas will be subject to

Incidental Take consistent with the

Plan. Although the one known nest

site is located outside of the MSHCP

Conservation Area, no Take of raptor

nest sites is authorized by the Plan.

the Species Account.

prairie falcon

(Falco mexicanus) -

breeding

1 The prairie falcon has a wide but sparse distribution over

many Habitat types within the Plan Area. There is one

clumped distribution within the Mystic Lake/San Jacinto

Wildlife area. No nest sites are known for the area

although one could be present within the Vail Lake area

and one may have been historically present possibly

within the Lakeview Mountains area.

Objective 1: Include within the MSHCP Conservation Area at

least 141,510 acres of suitable open and scrub

Habitats including grassland, playa and vernal pool,

Riversidean alluvial fan sage scrub, coastal sage

scrub, and desert scrubs. Conservation will occur

in large blocks throughout the Plan Area, including

at a minimum: Mystic Lake/San Jacinto Wildlife

Area (2,690 acres), Lakeview Mountains (7,150

acres), and Vail Lake (12,320 acres).

Conservation of this species will be

achieved by inclusion of at least 141,510

acres of suitable Conserved Habitat

including grassland, playa and vernal pool,

Riversidean alluvial fan sage scrub,

coastal sage scrub, and desert scrubs. In

addition, several large blocks of Habitat

supporting the current known and

potential foraging and potential or historic

nesting locations of the prairie falcon will

be conserved in the MSHCP Conservation

Area, including the Vail Lake, Lakeview

Mountains, and Mystic Lake/San Jacinto

Wildlife Area. Although it occurs

repeatedly in a number of conserved

locations, the current population size of

the prairie falcon in the Plan Area is

unknown.

Approximately 182,490 acres (56

percent) of potential Habitat for the

prairie falcon will be outside the

MSHCP Conservation Area and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan.

None 8 Reserve Managers will manage cliff faces capable of supporting

nesting prairie falcons.

Page 79: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-79

purple martin

(Progne subis)

3 The purple martin has been recorded in very low numbers

spread widely over the Plan Area. Almost all of the

observations are of migrating individuals except for the

vicinity of the known nesting locations and potential

nesting locations. It will forage on the wing in a variety of

Habitats during migration, however, it has very

specialized nest site requirements that are not clearly

defined. It is typically found in association with water,

either within a drainage or open water body. Potential

nesting areas occur in riparian, oak woodland, and

montane coniferous Habitats, however, only two nest

sites are documented within Habitats that are widespread

within the Plan Area. The two recorded nest sites within

the Plan Area including Dripping Springs (near Vail Lake)

and Thomas Mountain (south of Hemet Lake). There is

one historic nest site at Hemet Lake for which the current

status is unknown. A possible nest site may be present

within the Cleveland National Forest near the western

boundary of the Plan Area. Because the purple martin

requires specific and undefined conditions for its nesting

location which apparently occur rarely within a broadly

distributed variety of Habitats, the purple martin will

require Conservation on a landscape level to provide

general foraging and nesting Habitat, site specific

considerations to conserve nest site locations, and

species specific management conditions.

Objective 1: Include within the MSHCP Conservation Area

45,020 acres of suitable nesting and foraging

Habitat for the purple martin including riparian

scrub, forest, and woodland, deciduous woodland

and forest, and montane coniferous forest.

Objective 2: Include within the MSHCP Conservation Area the 2

Core Areas including Dripping Springs (represented

by Vail Lake Subunit 3 of Southwest Area Plan;

12,320 acres) and Thomas Mountain (represented

by the San Bernardino National Forest; 149,750

acres).

Objective 3: Include within the MSHCP Conservation Area

micro-Habitat (i.e., groups of large snags) in

potential nesting Habitat.

Conservation for this species will be

achieved by inclusion of at least 45,020

acres of suitable Conserved Habitat in the

MSHCP Conservation Area. Additionally

162,070 acres of Core Areas including the

two documented nest sites and the one

potential nest site within large blocks of

Habitat will be included in the MSCHP

Conservation Area. Implementation of

Objective 3 for this species will conserve

the micro-Habitat (i.e., groups of large

snags) in potential nesting Habitat of the

purple martin.

About 17,810 acres (about 28

percent)of potential Habitat for the

purple martin will be outside the

Criteria Area and Public/Quasi-Public

designations, and individuals within

these areas will be subject to

Incidental Take consistent with the

Plan. Of this, approximately 4,840

acres (8 percent) will be within

Rural/Mountainous designation areas.

Although these areas will not be part

of the managed MSHCP Conservation

Area the anticipated levels of

development in these areas will likely

be consistent with the continued

presence of the purple martin. The

historic breeding location of the purple

martin at Hemet Lake is not included

within the MSHCP Conservation Area,

however this site may no longer be

viable and may not be active.

None 8 General Management Measure 4. Reserve Managers will

manage the two known nest sites for house sparrows or

European starlings competing for the nest cavities. If

competition is occurring, removal of house sparrows or

European starlings may be required. Reserve Managers will

augment nesting areas with potential artificial nest sites using

gourds, if possible. Management actions may include closing

roads near a nest site, fencing hiking trails, or fencing potential

access points during the breeding season of the purple martin.

Reserve Managers will manage known and future identified

nesting localities and protect micro-Habitat (i.e., groups of large

snags) in potential nesting Habitat.

sharp-shinned hawk

(Accipiter striatus)

1 The sharp-shinned hawk has a widespread distribution

throughout the MSHCP Plan Area within suitable foraging

Habitat. It occurs within the Plan Area as a transient in

the spring and fall and may winter within the area. It has

not been recorded as breeding within the Plan Area

although Habitat is available for that purpose and it has

been recorded in the mountainous areas during the

summer. It is an opportunistic predator that may forage

anywhere within suitable Habitats in the area and has

been recorded throughout the entire Plan Area.

Objective 1: Include within the MSHCP Conservation Area at

least 20,500 acres of montane coniferous forest for

breeding areas (none have been documented) and

398,280 acres of riparian scrub, woodland, and

forest, oak woodland and forest, chaparral, coastal

sage scrub, desert scrub, and Riversidean alluvial

fan sage scrub for foraging during wintering and

transient movements.

Conservation for this species will be

achieved by inclusion of at least 418,780

acres of suitable Conserved Habitat

including montane coniferous forest for

potential breeding areas and riparian

scrub, woodland, and forest Habitat, oak

woodland and forest, chaparral, coastal

sage scrub, desert scrub, and Riversidean

alluvial fan sage scrub for foraging. The

MSHCP Conservation Area includes

preservation of large blocks of areas that

contain a variety of potentially suitable

Habitat for foraging use during winter and

migration as well as very large blocks that

contain potentially suitable nesting Habitat.

About 240,570 acres (about 36

percent) of potential Habitat for the

sharp-shinned hawk will be outside

t h e C r i t e r i a A r e a a n d

Public/Quasi-Public designations, and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Of this, approximately

91,510 acres of potential Habitat (14

percen t) are located wi th in

Rural/Mountainous designation areas.

While the Rural/ Mountainous areas

are not included within the MSHCP

Conservation Area and will not be

managed for the benefit of wildlife, the

anticipated levels of development

None 8 General Management Measure 1.

Page 80: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-80

areas will likely be consistent with

maintaining some Habitat for the

sharp-shinned hawk.

Southern California

rufous-crowned sparrow

(Aimophila ruficeps

canescens)

2 The Southern California rufous-crowned sparrow is widely

distributed throughout the MSHCP Plan Area within

suitable Habitat in the Riverside Lowlands, Santa Ana

Mountains, and San Jacinto Foothills Bioregions. It is

absent from higher elevation Bioregions and the Desert

Transition Bioregion. The Southern California rufous-

crowned sparrow occurs within several Core Areas

including Lake Mathews-Estelle Mountain, Gavilan

Plateau, Box Springs Mountains, Lake Perris, Badlands,

west of Lake Elsinore, Wasson Canyon, Santa Rosa

Plateau, Lake Skinner, De Portola Road east of Bachelor

Mountain, Wilson Valley, and the Hogbacks. The

Southern California rufous-crowned sparrow is a

year-round resident but may make movements to lower

elevations for the winter. Because rufous-crowned

sparrow Habitat requirements are well known, the species

occurs widely within these Habitats in the Riverside

lowlands, San Jacinto Foothills, and Santa Ana Mountains

Bioregions, and specific Core Areas exist for the species,

it is anticipated that Southern California rufous-crowned

sparrow will respond well to a landscape level of

management with site specific requirements.

Objective 1: Include within the MSHCP Conservation Area at

least 82,640 acres of suitable primary Habitat for

the Southern California rufous-crowned sparrow

including coastal sage scrub, Riversidean alluvial

fan sage scrub, and desert scrubs in Riverside

Lowland, Santa Ana Mountains, and San Jacinto

Foothills Bioregions.

Objective 2: Include within the MSHCP Conservation Area at

least 9 Core Areas and interconnecting Linkages.

Core areas will include: Lake Mathews-Estelle

Mountain (Existing Core C plus Proposed Extension

of Existing Core 2; 23,710 acres), Box Springs

Mountains (Existing Noncontiguous Habitat Block A

plus Proposed Constrained Linkage 8; 2,920 acres),

Lake Perris (Existing Core H; 17,470 acres), the

Badlands (Proposed Core 3; 24,920 acres), west of

Lake Elsinore (represented by Existing Core B;

71,490 acres), Wasson Canyon (Subunit 5 of

Elsinore Area Plan; 2,320 acres), Lake Skinner

(including Diamond Valley Lake; Existing Core C

plus Proposed Extension of Existing Cores 5, 6, 7;

29,060 acres), Wilson Valley (Subunit 2 of REMAP

Area Plan; 33,540 acres), and the Hogbacks

(Proposed Core 2; 5,050 acres).

Objective 3: Include within the MSHCP Conservation Area at

least 174,620 acres of suitable secondary Habitats

for the Southern California rufous-crowned sparrow

including chaparral and grasslands in Riverside

Lowland, Santa Ana Mountains, and San Jacinto

Foothills Bioregions.

Conservation for this species will be

achieved by inclusion of at least 82,640

acres of suitable primary Conserved

Habitat and 174,620 acres of suitable

secondary Conserved Habitat and 9 of 12

Core Areas within large blocks of Habitat

in the MSHCP Conservation Area. In

addition, 50 recent and high precision

locations will be inside the Criteria Area or

Public/Quasi-Public lands, all of which are

recorded for the suitable Habitat of the

southern California rufous-crowned

sparrow. Conservation also will be

provided for the Habitat Linkages between

Core Areas and areas important for

dispersal. The current population size of

the southern California rufous-crowned

sparrow is unknown, however the species

is well documented as to the Habitat that

it uses and locations that constitute Core

Areas.

The Incidental Take of the Southern

California rufous-crowned sparrow is

difficult to quantify due to our limited

knowledge of its distribution and

abundance within the Plan Area. The

maximum level of Incidental Take of

Southern California rufous-crowned

sparrows can be anticipated by the

loss of the number of acres of

potential Habitat that will become

unsuitable for this species. About

70,980 acres of potential primary

Habitat for the Southern California

rufous-crowned sparrow will be

outside the Criteria Area and

Public/Quasi-Public designations, or

about 46 percent of the total potential

primary Habitat. Approximately

175,010 acres of secondary Habitat

for the Southern Cal i forn ia

rufous-crowned sparrow will be

outside the MSHCP Conservation

Area, about 50 percent of the potential

secondary Habitat. Individuals within

these areas are subject to Incidental

Take consistent with the Plan. Of this,

approximately 26,200 acres (17

percent) of potential primary Habitat

and 58,680 acres (17 percent) of

potential secondary Habitat are located

within Rural/Mountainous designation

areas. Core Areas not conserved

within Criteria Area and Public/

Quasi-Public designations include the

Gavilan Plateau, Santa Rosa Plateau,

and De Portola Road east of Bachelor

Mountain. A total of 33 (22 percent)

of the recent and high precision

locations will be in the Rural/

None 8 Each Reserve Manager responsible for a Core Area will conduct

baseline surveys as necessary (i.e., where no existing

information exists) to determine the number of acres occupied

by rufous-crowned sparrows within the Core Area. Each

Reserve Manager responsible for a Core Area will evaluate the

condition of the sage scrub vegetation within the Core Area and

maintain a program to enhance and/or create sage scrub within

the Core Area to keep the coastal sage scrub vegetation within

10% of the acreage defined in Objective 1 of the Species

Account. Reserve Managers will maintain occupancy of at least

80 percent of the occupied rufous-crowned sparrow Habitat, as

determined using existing information and baseline surveys,

within each Core Area. Additional management measures will

address predation and harassment by domestic cats and dogs

and competition from non-native species.

Page 81: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-81

Mountainous zone and 66 (44

percent) are outside the MSHCP

Conservation Area. Of the 66 points

located outside the MSHCP

Conservation Area, 32 are mapped in

existing residential/urban/exotic areas

and may no longer be extant.

southwestern willow

flycatcher

(Empidonax traillii

extimus)

3 The southwestern willow flycatcher is narrowly

distributed at few locations within the Plan Area.

Although the preferred Habitat, riparian woodland and

select other forests, is well distributed within all

Bioregions and spread over the entire Plan Area, few

current locations for the willow flycatcher have been

documented. The southwestern willow flycatcher has

specific Habitat requirements and conditions within the

larger Habitat category within which it occurs. Because

it requires specific Habitat conditions, occurs in few

locations within a larger Habitat category, and occurs in

low densities, the southwestern willow flycatcher will

require Conservation on a landscape level, site specific

considerations for the known locations, and species

specific management conditions as a Group 3 species.

Objective 1: Include within the MSHCP Conservation Area at

least 10,580 acres of suitable Habitat for the

southwestern willow flycatcher including montane

riparian forest, riparian scrub, arundo/riparian

forest, riparian forest, southern cottonwood/willow

riparian, southern sycamore/alder riparian

woodland, and southern willow scrub.

Objective 2: Include within the MSHCP Conservation Area at

least 6 Core Areas and interconnecting Linkages.

Core areas shall include the following areas: 1)

Prado Basin/Santa Ana River, including Chino

Creek, the Santa Ana River both up- and

downstream of the Prado Dam, and the seven 2001

territories (9,670 acres); 2) Temescal Wash

including Alberhill Creek (estimated as Subunit 3

plus Proposed Constrained Linkage 6 and Proposed

Linkage 2; 4,290 acres); 3) Murrieta Creek

(Proposed Constrained Linkage 13; 1,400 acres); 4)

Temecula Creek (Proposed Constrained Linkages

14 and 24; 830 acres); 5) San Timoteo Canyon

(Proposed Linkages 5, 12 and Proposed Linkage

22; 2,140 acres); 6) Vail Lake (Subunit 3 of

Southwest Area Plan; 12,320 acres). Each Core

Area will include at least 100 meters of

undeveloped landscape adjacent to the riparian

woodland and scrub Habitat and contain

unfragmented Habitat and landscape Linkages to

other Core Areas.

Objective 3: Include within the MSHCP Conservation Area

additional areas within the Criteria Area identified as

important to the southwestern willow flycatcher.

This Objective shall be met through implementation

Conservation for this species will be

achieved by inclusion of at least 10,580

acres of suitable Conserved Habitat and 6

Core Areas and the additional current

known locations within large blocks of

Habitat in the MSHCP Conservation Area.

The MSHCP Conservation Area will

maintain (once every 3 years) the

continued use of, and successful

reproduction at 75 percent of the known

southwestern willow flycatcher occupied

Core Areas (including any nesting

locations identified in the MSHCP

Conservation Area in the future).

Implementation of Objective 3 will provide

the Conservation of additional areas within

the Criteria Area that are identified as

important to the southwestern willow

flycatcher through wetland mapping

assembled as part of the Protection of

Species Associated with Riparian/Riverine

Areas and Vernal Pools Policy (Section

6.1.2). This objective provides for

Conservation of 100 percent of the

occupied portions of the property that

provide for long-term Conservation value

for the flycatcher. The survey

requirements within this objective will be

waived upon demonstrating that at least

two Core Areas contain at least 10

successful flycatcher breeding pairs and

at least four additional Core Areas each

support breeding populations of at least 5

pairs of flycatchers.

About 3,220 acres (about 23 percent)

of suitable southwestern willow

flycatcher Habitat will be outside the

Criteria Area and Public/Quasi-Public

Lands and individuals within these

areas may be subject to Incidental

Take. However, implementation of the

Protection of Species Associated with

Riparian/Riverine Areas and Vernal

Pools (Section 6.1.2) and adjacency

policies, avoidance of clearing of

suitable Habitat in the breeding season

and protection and management of 90

percent of the area with Conservation

value of any site where the species is

found will minimize Take of the

species. A total of 5 of 17 high

precision points are located outside

the MSHCP Conservation Area, all of

which are located outside suitable

Habitat areas within existing

residential/urban/ exotic areas,

non-native grassland, or open water.

None of the Core Areas for the species

and none of the current known

locations are outside of the MSCHP

Conservation Area.

Yes, see Section

6.1.2 (Protection

o f S p e c i e s

Associated with

Riparian/Riverine

Areas and Vernal

Pools).

3 3 General Management Measure 4. Reserve Managers will

manage this species in order to maintain (once every 3 years)

the continued use of, and successful reproduction at, 75% of the

known southwestern willow flycatcher occupied Core Areas

(including any nesting locations identified in the MSHCP

Conservation Area in the future). Reserve Managers will develop

a species-specific management plan or general management

plan element that clearly identifies Conservation measures to

ensure, to the extent possible, that the species has sufficient

suitable Habitat and that the species is not impacted by such

environmental perturbations as fire, environmental contaminants,

fragmentation-induced phenomena such as mesopredator

release, and the direct and indirect impacts associated with

cattle grazing and the presence of non-native plants and

animals. Reserve Managers will manage the riparian Habitats

within the current documented locations of the southwestern

willow flycatcher at the Prado Basin, Santa Ana River, Temecula

Creek, Vail Lake, Box Springs Mountain, Alberhill Creek, Santa

Rosa Plateau Nature Reserve, Lake Skinner, Bautista Creek, and

Potrero Creek. Reserve Managers will maintain or improve the

potential flycatcher Habitat (including potential Core and satellite

Areas and Habitat Linkages) in and along Temescal Wash,

Wasson Canyon, Murrieta Creek, Wilson Valley, Bautista Creek,

Tucalota Creek, and San Timoteo Canyon. Management

emphasis will be given to maintaining or improving hydrological

processes within the drainages that support the potential Habitat

and by selectively restoring, rehabilitating or revegetating all

such areas that are currently fragmented or otherwise degraded

by, for instance, infestations of exotic plants and animals.

Reserve Managers will also manage this species for cowbird

parasitism. Reserve Managers will buffer known and future nest

sites from disturbance within a 100-meter buffer.

Page 82: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-82

of the Protection of Species Associated with

Riparian/Riverine Areas and Vernal Pools Policy

presented in Section 6.1.2 of the MSHCP, Volume

I. Wetland mapping assembled as part of that

policy shall be reviewed as part of the project

review process and if suitable southwestern willow

flycatcher Habitat, defined as cottonwood or willow

riparian Habitat adjacent to flowing water or

saturated soils, is identified on the wetland maps

and cannot be avoided, a focused survey for

southwestern willow flycatcher shall be conducted

by a qualified biologist in accordance with accepted

protocol. If survey results are positive, 100 percent

of the occupied portions of the property that provide

for long-term Conservation value for the flycatcher

shall be conserved in a manner consistent with

Conservation of the flycatcher. This will involve

including 100 meters of undeveloped landscape

adjacent to the Habitat conserved. The survey

requirements within this objective will be waived

upon demonstrating that at least two Core Areas

contain at least 10 successful flycatcher breeding

pairs and at least four additional Core Areas each

support breeding populations of at least 5 pairs of

flycatchers.

Objective 4: Within the MSHCP Conservation Area, maintain

(once every 3 years) the continued use of, and

successful reproduction at 75 percent of the known

southwestern willow flycatcher occupied Core

Areas (including any nesting locations identified in

the MSHCP Conservation Area in the future).

Successful reproduction is defined as a nest which

fledged at least one known young.

Page 83: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-83

Swainson’s hawk

(Buteo swainsoni)

1 The Swainson's hawk has a sparse and widespread

distribution throughout the MSHCP Plan Area within

almost every Habitat that occurs within the Plan Area. It

occurs within the Plan Area as a transient in the spring

and fall and may occasionally winter within the area. It

does not require specific conditions or locations for

nesting because it does not nest in the region. It is an

opportunistic predator that may forage anywhere in the

area.

Objective 1: Include within the MSHCP Conservation Area at

least 141,960 acres of grassland, cismontane alkali

marsh, playa and vernal pool, Riversidean alluvial

fan sage scrub, coastal sage scrub, agriculture

(field crops) and forested areas containing potential

perch and roost sites including peninsular juniper

woodland and scrub, and riparian scrub, woodland

and forest Habitats.

Conservation for this species will be

achieved by inclusion of at least 141,960

acres of suitable Conserved Habitat

including grassland, cismontane alkali

marsh, playa and vernal pool, Riversidean

alluvial fan sage scrub, coastal sage

scrub, agriculture (field crops), peninsular

juniper woodland and scrub, and riparian

scrub, woodland and forest. The current

population size of the Swainson's hawk is

unknown, however the foraging Habitat

requirements are well defined. The

species is not predictable in its

occurrence and may vary in number

within the area from a few to many

individuals but only uses the Habitats

within the Plan Area during transient

migratory movements.

About 257,220 acres of potential

Habitat for the Swainson's hawk will

be outside the Criteria Area and

Public/Quasi-Public designations, or

about 64 percent of the total potential

Habitat and individuals occurring

within these areas will be subject to

Incidental Take consistent with the

Plan.

None 8 General Management Measure 1.

tree swallow

(Tachycineta bicolor)

2 The tree swallow is widely but sparsely distributed

throughout the MSHCP Plan Area within suitable Habitat.

Breeding locations have been documented at Prado Basin

and along the Santa Ana River. Additionally, Core Areas

may be present at Wasson Canyon, Temecula Creek,

Lake Skinner, Vail Lake, and Wilson Valley, based on

repeated observations of tree swallows in these areas.

The species has also been reported at Lake Mathews,

Alberhill Creek, Lake Elsinore, Murrieta Creek, Lake Perris,

and Santa Rosa Plateau. Because Habitat characteristics

for this species are well known including open water for

foraging and riparian scrub and water-associated

woodland and forest for nesting, and the species occurs

in all Bioregions of the Plan Area, but has specific

locations that are Core Areas, it is anticipated that tree

swallows will respond well to a landscape level with site

specific requirements.

Objective 1: Include within the MSHCP Conservation Area

44,420 acres of suitable nesting and foraging

Habitat for the tree swallow including open water,

riparian scrub, woodland and forest, and oak

woodland and forest Habitats in all Bioregions of the

Plan Area.

Objective 2: Include within the MSHCP Conservation Area the 6

known Core Areas including the breeding

populations in the Prado Basin/Santa Ana River

(9,670 acres) and other Core Areas at Wasson

Canyon (Subunit 5 of Elsinore Area Plan; 2,320

acres), Temecula Creek (Subunit 2 of Southwest

Area Plan; 850 acres), Lake Skinner (Existing Core

J plus Proposed Extension of Existing Cores 5, 6, 7;

29,060 acres), Vail Lake (Subunit 3 of Southwest

Area Plan; 12,320 acres), and Wilson Valley

(Subunit 2 of REMAP Area Plan; 33,540 acres).

Include additional areas that may contain breeding

populations including Lake Mathews, Lake Perris,

and Lake Elsinore, and drainages and woodland

Conservation for this species will be

achieved by the inclusion of at least

44,420 acres of suitable Conserved

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will conserve the

micro-Habitat (i.e., groups of large snags)

in potential nesting Habitat. The six Core

Areas of the tree swallow are conserved

within large blocks of Habitat in the

MSHCP Conservation Area and additional

areas where the tree swallow has been

observed and that contain potential Habitat

are also conserved.

The Incidental Take of the tree

swallow is difficult to quantify due to

our limited knowledge of its

distribution and abundance within the

Plan Area. The maximum level of

Incidental Take of tree swallows can

be anticipated by the loss of the

number of acres of potential Habitat

that will become unsuitable for this

species. About 14,580 acres (25

percent) of potential Habitat for the

tree swallow will be outside the

Criteria Area and Public/Quasi-Public

Lands, and individuals within these

areas will be subject to Incidental Take

consistent with the Plan. None of the

Core Areas will be outside the MSHCP

Conservation Area. Of this,

approximately 5,430 acres (9 percent)

of potential Habitat are located within

Rural/Mountainous designation areas.

None 8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and/or preserving

hydrological process on the Santa Ana River and any other

hydrologic system important to maintain the integrity of nesting

sites in the MSHCP Conservation Area. Reserve Managers will

enhance and/or create additional Habitat and/or nesting areas in

the areas identified in Objective 3 and at Lake Elsinore, Diamond

Valley Lake, Lake Mathews, and Lake Perris. Reserve Managers

will manage nesting Habitat on the Santa Ana River and in other

Core breeding Areas by managing for snags and older tree

stands of oak and cottonwood. Reserve Managers will assure

the continued presence of nesting tree swallows at a minimum

of 70% of the locations in the MSHCP Conservation Area where

the species has been known to occur. Presence/ absence must

be demonstrated at least once every seven years.

Page 84: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-84

areas within the Cleveland National Forest and San

Bernardino National Forest.

Objective 3: Include within the MSHCP Conservation Area

micro-Habitat (i.e., groups of large snags) in

potential nesting Habitat.

While the Rural/Mountainous areas are

not included within the MSHCP

Conservation Area, will not be

managed for the benefit of wildlife, and

the existing zoning/ordinances for

these areas do not preclude

development and could allow

substantial fragmentation and/or

degradation of Habitat for proposed

covered species, the anticipated levels

of development in these areas may be

consistent with maintaining some

Habitat for the tree swallow. It should

also be noted that wetland Habitats

located outside the MSHCP

Conservation Area would be subject to

the Protection of Species Associated

with Riparian/Riverine Areas and

Vernal Pools policy presented in

Section 6.1.2 of the MSHCP, Volume

I.

tricolored blackbird

(Agelaius tricolor) -

colony

3 The tricolored blackbird occurs in a widely scattered

distribution throughout the lowland and foothills

Bioregions of the Plan Area. A few current or historic

breeding locations have been documented. It has specific

Habitat requirements, including patches of dense

emergent vegetation as primary Habitat for breeding. It

also requires a variety of open Habitats as secondary

Habitat and is occasionally known to nest in riparian

woodland areas. This species occurs in several Core

Areas, including the floodplain of the San Jacinto River,

Mystic Lake/San Jacinto Wildlife Area, Collier Marsh,

Alberhill, Vail Lake/Wilson Valley/eastern Temecula Creek,

and Lake Hemet, which are either currently used or have

been used in the past by tricolored blackbird breeding

colonies. Although the tricolored blackbird is not

documented to occur in the Santa Ana River and Prado

Basin in the CNDDB and UCR databases, these areas

contain substantial amounts of suitable Habitat and seem

likely future or undocumented breeding locations.

Objective 1: Include within the MSHCP Conservation Area at

least 420 acres of suitable primary Habitat for the

tricolored blackbird including freshwater marsh and

cismontane alkali marsh Habitats within the

Riverside Lowlands and Foothills Bioregions.

Objective 2: Include within the MSHCP Conservation Area the 5

Core Areas, including San Jacinto River floodplain

(Proposed Core 5, Existing Constrained Linkage C,

Proposed Extension of Existing Core 4, and

Proposed Constrained Linkage 19; 7,320 acres),

Mystic Lake/San Jacinto Wildlife Area (Existing Core

H; 17,470 acres), Collier Marsh and Lake Elsinore

grasslands (Subunit 3 of Elsinore Area Plan; 1,810

acres), Alberhill (Subunit 2 of Elsinore Area Plan;

3,460 acres), and Vail Lake/Wilson Valley/eastern

Temecula Creek (Proposed Core 7; 50,000 acres).

Conservation for this species will be

achieved by inclusion of at least 420 acres

of suitable primary Conserved Habitat and

66,510 acre of suitable secondary

Conserved Habitat and 5 Core Areas

within large blocks of Habitat in the

MSHCP Conservation Area. The MSHCP

Conservation Area will maintain (once

every 5 years) the continued use of, and

successful reproduction within at least

one of the identified Core Areas and will

conserve within the MSHCP Conservation

Area and establish a 100-meter buffer

around any known nesting locations.

Implementation of Objective 6 will ensure

Habitat support functions within the

MSHCP Conservation Area by maintaining,

preserving, and/or, if feasible, restoring

hydrological processes and Habitat

The Incidental Take of the tricolored

blackbird is difficult to quantify due to

our limited knowledge of its

distribution and abundance within the

Plan Area. The maximum level of

Incidental Take of tricolored blackbirds

can be anticipated by the loss of the

number of acres of potential Habitat

that will become unsuitable for this

species. About 193,240 acres of

potential Habitat for the tricolored

blackbird will be outside the Criteria

Area and Public/Quasi-Public

designations, or about 74 percent of

the total potential Habitat and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Of the primary Habitats,

60 acres will be outside the MSHCP

None 5 5 General Management Measures 4 and 6. Reserve Managers

will manage this species in order to maintain (once every 5

years) the continued use of, and successful reproduction within

at least one of the identified Core Areas. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and preserving hydrological

processes and Habitat suitable for tricolored blackbird breeding

within the San Jacinto River floodplain, Mystic Lake/San Jacinto

Wildlife Area, Collier Marsh, Alberhill, and Vail Lake/Wilson

Valley/eastern Temecula Creek. Reserve Managers will manage

known and future occurrences of this species. Reserve

Managers will conserve, protect and buffer with a 100-meter

distance around any known nesting locations. Particular

management emphasis will be given to Habitat loss, predation,

poisoning, human disturbance and pesticide use.

Page 85: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-85

Because the tricolored blackbird requires specific Habitat

conditions, occurs in few locations within a broad Habitat

category, and uses a well defined Habitat that is narrowly

distributed for its primary Habitat, this species will require

site specific considerations, protection of preferred

Habitat on a landscape basis, and species-specific

Conservation measures.

Objective 3: Include within the MSHCP Conservation Area at

least 66,510 acres of secondary Habitat for the

tricolored blackbird including playa and vernal pool,

grasslands, agriculture land, and riparian scrub,

woodland, and forest within the Riverside Lowlands

and Foothills Bioregions.

Objective 4: Within the MSHCP Conservation Area, maintain

(once every 5 years) the continued use of, and

successful reproduction within at least one of the

identified Core Areas. Successful reproduction is

defined as a nest which fledged at least one known

young.

Objective 5: Within the MSHCP Conservation Area, ensure

Habitat support functions by maintaining,

preserving, and/or if feasible, restoring hydrological

processes and Habitat suitable for tricolored

blackbird breeding within the San Jacinto River

floodplain, Mystic Lake/San Jacinto Wildlife Area,

Collier Marsh, Alberhill, and Vail Lake/Wilson

Valley/eastern Temecula Creek Core Areas.

Objective 6: Include within the MSHCP Conservation Area and

establish a 100-meter buffer around any known

nesting locations.

suitable for tricolored blackbird breeding

within the San Jacinto River floodplain,

Mystic Lake/San Jacinto Wildlife Area,

Collier Marsh, Alberhill, and Vail

Lake/Wilson Valley/eastern Temecula

Creek Core Areas. The current population

size of the tricolored blackbird is unknown,

however the historic and recent breeding

locations are conserved within the MSHCP

Conservation Area.

Conservation Area, or about 13

percent of the potential primary

Habitat. Of the secondary Habitats,

about 193,180 acres will be outside

the MSHCP Conservation Area, or

about 74 percent of the potential

secondary Habitats. It should also be

noted that wetland Habitats located

outside the MSHCP Conservation Area

will be subject to the Protection of

Species Associated with Riparian/

Riverine Areas and Vernal Pools policy

presented in Section 6.1.2 of the

MSHCP, Volume I. Based on the

information from CNDDB, a breeding

location is recorded for Lake Hemet.

This potential breeding colony site is

outside of the MSHCP Conservation

Area but within the area subject to

protection by the MSHCP Protection of

Species Associated with Riparian/

Riverine Areas and Vernal Pools

policy. A total of 14 of 16 point

localities will be located outside the

MSCHP Conservation Area, however

these point locations were recorded in

foraging Habitats such as field crops,

chaparral, sage scrub, and residential

which are Habitats not suitable for

breeding.

turkey vulture

(Cathartes aura) -

breeding

3 The turkey vulture is generally widely distributed

throughout the Plan Area. There are fewer observations

within the mountainous Bioregions, however this could be

due to lack of survey effort or reporting in these areas.

There are concentrations of observation locations within

the southwestern portion of the Plan Area from Lake

Elsinore to the Santa Rosa Plateau, east to Wilson Valley

and Lake Skinner. The focus of this planning effort is on

the nesting of the turkey vulture. There are two recorded

nest sites within the Plan Area: Bernasconi Hills near Lake

Perris and Rawson Canyon near Lake Skinner. Turkey

Objective 1: Include within the MSHCP Conservation Area at

least 457,160 acres of suitable foraging Habitat for

the turkey vulture including montane coniferous

forest, oak woodlands and forests, coastal sage

scrub, chaparral, desert scrubs, Riversidean alluvial

fan sage scrub, grassland, and playa and vernal

pool.

Objective 2: Include within the MSHCP Conservation Area, areas

where the turkey vulture has been observed and

that may function as important foraging locations,

Conservation for this species will be

achieved by inclusion of at least 457,160

acres of suitable Conserved Habitat and

140,810 acres of Core Areas within large

blocks of Habitat in the MSHCP

Conservation Area. The two known

nesting locations will be conserved within

large blocks of Habitat within the MSHCP

Conservation Area and the nest locations

will be buffered from disturbance.

Additional cliff areas for potential nesting

The Incidental Take of the turkey

vulture is difficult to quantify due to

our limited knowledge of its

distribution and abundance within the

Plan Area. The maximum level of

Incidental Take of turkey vultures can

be anticipated by the loss of the

number of acres of Habitat that will

become unsuitable for this species.

About 342,360 acres (43 percent) of

potential Habitat for the turkey vulture

None 8 3 Maintain (once every 3 years) the continued use of, and

successful reproduction at, the two known nesting locations,

and at any nesting locations identified in the MSHCP

Conservation Area in the future. Reserve Managers will ensure

buffering of the nest sites, which will include restricting human

activities within a 1/2-mile radius around each of the nesting

locations during the breeding season (e.g., fencing hiking trails

or fencing potential access points). For Lake Perris, buffering

will be consistent with the recreational activities at Lake Perris.

Reserve Managers will ensure the Conservation of cliff areas in

the Criteria Area that are capable of supporting nesting turkey

Page 86: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-86

vultures have strict nest-site requirements and few

potential sites are located within the Plan Area. Because

the turkey vulture requires specific conditions for its

nesting location which may occur within a broad variety

of Habitats at few locations within the Plan Area, the

turkey vulture will require site-specific and species

specific considerations and management requirements.

including Lake Mathews-Estelle Mountain (Existing

Core C plus Proposed Extension of Existing Core 2;

23,710 acres), Sedco Hills (Proposed Linkage 8;

5,470 acres), Lake Skinner/ Diamond Valley Lake

area (Existing Core C plus Proposed Extension of

Existing Cores 5, 6, and 7 and Existing Constrained

Linkage A; 29,370 acres), Wilson Valley/Sage

(Subunit 2 of REMAP Area Plan; 33,540 acres),

Badlands (Proposed Core 3; 24,920 acres), and

Prado Basin/Santa Ana River (9,670 acres), and a

portion of Santa Rosa Plateau (Existing Core F plus

Proposed Linkages 9 and 10, and Proposed

Constrained Linkages 9 through 12; 14,130 acres).

Objective 3: Include within the MSHCP Conservation Area,

protect, and buffer from disturbance the 2 known

nesting locations of the turkey vulture including the

site within the Bernasconi Hills (historic) and the

site within Rawson Canyon (currently active).

Protection is the Conservation of undeveloped

Habitats in the MSHCP Conservation Area within a

1 mile radius of each nesting location. Buffering of

the two known nest sites will include restricting

human activities, within the MSHCP Conservation

Area, within a 1/2 mile radius around each of the

nesting locations during the breeding season (e.g.,

fencing hiking trails or fencing potential access

points).

Objective 4: Within the MSHCP Conservation Area, maintain

(once every 3 years) the continued use of, and

successful reproduction at the two known nesting

locations, and at nesting locations identified in the

MSHCP Conservation Area in the future.

Successful reproduction is defined as a nest which

fledged at least one known young.

Objective 5: Include within the MSHCP Conservation Area cliff

areas that are capable of supporting nesting turkey

vultures.

also will be included within the MSHCP

Conservation area. In addition, Objective

4 will maintain (once every 3 years) the

continued use of, and successful

reproduction at the two known nesting

locations, and at any nesting locations

identified in the MSHCP Conservation Area

in the future.

will be outside the Criteria Area and

Public/Quasi-Public designations and

individuals within this Habitat will be

subject to Incidental Take consistent

with the Plan. A total of 53 point

localities will be outside of the MSHCP

Conservation Area and 19 point

locations are within the Rural/

Mountainous category. Many of these

72 point localities are likely of winter

migrants, which are not the focus of

the MSHCP plan. Both of the nesting

locations are within conserved areas.

Some of the foraging area within

which there are a concentration of

point locations will not be conserved

within the Santa Rosa Plateau.

vultures. Particular management emphasis will be given to

preventing human disturbance, canid predation, and pesticide

use.

Page 87: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-87

western yellow-billed

cuckoo

(Coccyzus americanus

occidentalis)

3 The western yellow-billed cuckoo occurs as a breeding

bird in only one known location within the Plan Area. It

has been recently documented in two other locations but

breeding is not confirmed. Although the preferred Habitat,

riparian scrub and forest, is well distributed at scattered

locations within the Plan Area in the lowland Bioregions,

the western yellow-billed cuckoo apparently no longer

inhabits much of this Habitat. The western yellow-billed

cuckoo has specific narrow Habitat requirements and

conditions within the larger Habitat category within which

it occurs. Because it requires specific conditions

(including broad tracts of suitable riparian Habitat),

occurs in few locations within a large Habitat category,

and occurs in low densities, the western yellow-billed

cuckoo will require Conservation on a landscape level to

preserve the suitable Habitat, site specific considerations

for the known locations, and species specific

management conditions.

Objective 1: Include within the MSHCP Conservation Area at

least 8,970 acres of suitable Habitat for the western

yellow-billed cuckoo including southern

cottonwood/willow riparian, riparian scrub, riparian

forest, and southern willow scrub.

Objective 2: Include within the MSHCP Conservation Area at

least five Core Areas and interconnecting Linkages.

Core areas shall include the following areas: 1)

Prado Basin/Santa Ana River, including Chino

Creek, Mill Creek, and the Santa Ana River both up-

and downstream of the Prado Dam (9,670 acres);

2) Temescal Wash including Alberhill Creek

(estimated as subunit 3 of Temescal Canyon Area

Plan plus Proposed Constrained Linkage 6 and

Proposed Linkage 2; 4,290 acres); 3) Murrieta

Creek (Proposed Constrained Linkage 13; 1,400

acres); 4) Temecula Creek (Proposed Constrained

Linkages 14 and 24; 830 acres); 5) San Timoteo

Canyon (Proposed Linkages 5, 12 and Proposed

Linkage 22; 2,140 acres). Each Core Area will

include at least 100 meters of undeveloped

landscape adjacent to the riparian woodland and

scrub Habitat and contain unfragmented Habitat and

landscape Linkages to other Core Areas. The Core

Areas must support a population of 20 pairs of

cuckoos combined total.

Objective 3: Within the MSHCP Conservation Area, maintain or,

if feasible, improve the riparian Habitats within the

recent documented locations of the western

yellow-billed cuckoo at the Prado Basin, Santa Ana

River, North Peak Conservation Bank and Poorman

Reservoir. Additionally, maintain or, if feasible,

improve the potential yellow-billed cuckoo Habitat

(including potential core and other areas) and

potential Habitat Linkages within the riparian areas

along the Santa Ana River both upstream and

downstream from Prado Dam, Temescal Wash

including Alberhill Creek, Wasson Canyon, Murrieta

Creek, Temecula Creek, Vail Lake, Wilson Valley,

Bautista Creek, Tucalota Creek, Lake Skinner,

Conservation for this species will be

achieved by inclusion of at least 8,970

acres of suitable Conserved Habitat and at

least 5 Core Areas and the additional

current known locations within large

blocks of Habitat in the MSHCP

Conservation Area. The MSHCP

Conservation Area will maintain (once

every 3 years) the continued use of, and

successful reproduction at 75 percent of

the known western yellow-billed cuckoo

occupied Core Areas (including any

nesting locations identified in the MSHCP

Conservation Area in the future).

Implementation of Objective 4 will provide

the Conservation of additional areas within

the Criteria Area that are identified as

important to the western yellow-billed

cuckoo through wetland mapping

assembled as part of the Riparian/Riverine

Areas and Vernal Pools Policy. This

objective provides for Conservation of 100

percent of the occupied portions of the

property that provide for long-term

Conservation value for the western

yellow-billed cuckoo. In addition,

implementation of Objective 3 for this

species will maintain or, if feasible,

improve the riparian Habitats within the

recent documented locations and potential

Habitat and potential Habitat Linkages

within riparian areas by preserving the

hydrological processes within the

drainages that support the potential

Habitat and, if feasible, by selectively

restoring, rehabilitating or revegetating all

such areas that are currently fragmented

or otherwise degraded.

The MSHCP has been designed to

preserve the areas with the known Core

Areas of the species, including the Prado

Approximately 2,580 acres (about 22

percent) of suitable yellow-billed

cuckoo Habitat will be outside the

Criteria Area and Public/Quasi Public

Lands and individuals within these

areas may be subject to Incidental

Take. None of the Core Areas for this

species are outside the Criteria Area

and Public/Quasi Public Lands.

Additionally, implementation of the

Riparian/Riverine Areas and Vernal

Pools and adjacency policies,

maintenance and improvement of

Habitat, and protection and

management of 100 percent of the

area with Conservation value of any

site where the species is found will

minimize Take of the species.

Yes, see Section

6.1.2 (Protection

o f S p e c i e s

Associated with

Riparian/ Riverine

Areas and Vernal

Pools).

3 3 General Management Measure 4. Reserve Managers will

implement a species-specific management plan or general

management plan element that clearly identifies Conservation

measures to ensure, to the extent possible, that the species has

sufficient suitable Habitat and that the species is not impacted by

such environmental perturbations as fire, environmental

contaminants, fragmentation-induced phenomena such as

mesopredator release, and the direct and indirect impacts

associated with cattle grazing and the presence of non-native

plants and animals. Each Reserve Manager responsible for a

Core Area as identified in the Species Account will evaluate the

condition of the riparian vegetation within the Core Area and

maintain a program to enhance and/or create riparian Habitat

within the Core Area. The maintenance or improvement of

Habitat at all locales will be accomplished by preserving the

hydrological processes within the drainages that support the

potential Habitat and by selectively enhancing, rehabilitating or

revegetating all such areas that are currently fragmented or

otherwise degraded by, for instance, infestations of exotic plants

and animals. Reserve Managers will ensure (once every 3

years) the continued use of, and successful reproduction at,

75% of the known western yellow-billed cuckoo occupied Core

Areas (including any nesting locations identified in the MSHCP

Conservation Area in the future). Reserve Managers will buffer

known and future nest sites from disturbance within a 100-meter

buffer.

Page 88: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-88

Potrero Creek, and San Timoteo Canyon. The

maintenance or improvement of Habitat at all

locales will be accomplished by preserving the

hydrological processes within the drainages that

support the potential Habitat and, if feasible, by

selectively restoring, rehabilitating or revegetating

all such areas that are currently fragmented or

otherwise degraded by, for instance, infestations of

exotic plants and animals. Each Reserve Manager

responsible for a Core Area identified above will

evaluate the condition of the riparian vegetation

within the Core Area and implement a program to

maintain or, if feasible, restore, and/or create

riparian Habitat within the Core Area. The

Riparian/Riverine Areas and Vernal Pools policy

(Section 6.1.2) and Guidelines Pertaining to Urban/

Wildlands Interface (Section 6.1.4) will be

implemented within the MSHCP Conservation Area.

Objective 4: Include within the MSHCP Conservation Area

additional areas within the Criteria Area identified as

important to the western yellow-billed cuckoo. This

Objective shall be met through implementation of

the Riparian/Riverine Areas and Vernal Pools Policy

presented in Section 6.1.2 of the MSHCP, Volume

I. Wetland mapping assembled as part of that

policy shall be reviewed as part of the project

review process and if suitable western yellow-billed

cuckoo Habitat, defined as cottonwood or willow

riparian Habitat adjacent to flowing water or

saturated soils, is identified on the wetland maps

and cannot be avoided, a focused survey for

western yellow-billed cuckoo shall be conducted by

a qualified biologist in accordance with accepted

protocols. If survey results are positive, 100

percent of the occupied portions of the property that

provide for long-term Conservation value for the

cuckoo shall be conserved in a manner consistent

with Conservation of the cuckoo. This will involve

including 100 meters of undeveloped landscape

adjacent to the Habitat conserved.

Basin/Santa Ana River. The Prado Basin

is an important Core Area for the western

yellow-billed cuckoo. Additionally, some

of the smaller recently occupied riparian

Habitat patches, and the larger riparian

Habitat blocks that apparently have not

been recently occupied, may provide

management and restoration opportunities

that are no longer available within portions

of the core population areas. The

Conservation Strategy for this species

includes: (1) pre-construction surveys of

potential Habitat areas that cannot be

avoided, (2) assessments of the current

and future utility of Habitat areas, and (3)

the means to secure or otherwise

conserve additional Habitat areas to

expand the MSHCP Conservation Area

until the continuing preservation of the

yellow-billed cuckoo and its Habitat results

in the Conservation of the species that is

currently on the verge of extirpation within

the Plan Area and a large majority of

California as a whole.

Page 89: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-89

Objective 5: Within the MSHCP Conservation Area, maintain

(once every 3 years) the continued use of, and

successful reproduction at 75 percent of the known

western yellow-billed cuckoo occupied Core Areas

(including any nesting locations identified in the

MSHCP Conservation Area in the future).

Successful reproduction is defined as a nest which

fledged at least one known young.

white-faced ibis

(Plegadis chihi)

2 The white-faced ibis is sparsely distributed throughout the

Riverside Lowlands Bioregions of the MSHCP Plan Area

within its suitable Habitat. It occurs at some of the areas

of freshwater marsh Habitat but is only documented for

breeding at two locations: Prado Basin and Mystic

Lake/San Jacinto Wildlife Area. There appear to be

several Core Areas in addition to the two breeding areas

including a section of the Santa Ana River, Collier Marsh,

and San Jacinto Valley. The breeding locations are few

and there are not likely to be more that have not been

discovered. These breeding locations require

Conservation. The species uses a wide variety of

Habitats for foraging during winter and transient visits

including agricultural land, grassland, and areas at the

edges of drainages. It is very opportunistic and flexible

for foraging requirements.

Objective 1: Include within the MSHCP Conservation Area at

least 340 acres of suitable primary breeding Habitat

including freshwater marsh Habitat within the

Riverside Lowlands Bioregion.

Objective 2: Include within the MSHCP Conservation Area at

least the two known breeding locations and foraging

areas at the Prado Basin/Santa Ana River (9,670

acres) and Mystic Lake/San Jacinto Wildlife Area

(Subunit 4 of Reche Canyon/Badlands Area Plan;

2,690 acres), and the core foraging areas at Collier

Marsh (Proposed Linkage 2; 160 acres) and San

Jacinto Valley (Subunit 1 of Lakeview/Nuevo Area

Plan; 3,650 acres).

Objective 3: Include within the MSHCP Conservation Area at

least 57,620 acres of suitable secondary foraging

Habitat including playas and vernal pools,

agriculture (field crops), grassland, cismontane

alkali marsh, and riparian scrub, woodland and

forest within the Riverside lowlands Bioregion.

Conservation for this species will be

achieved by inclusion of at least 340 acres

of suitable Conserved Habitat composed

of the nesting Habitat (freshwater marsh)

and 57,620 acres of suitable Conserved

Habitat composed of the foraging Habitat

(playas and vernal pool, agriculture,

grassland, cismontane alkali marsh, and

riparian scrub, woodland, and forest). In

addition, the two core breeding areas as

well as the core foraging area at Collier

Marsh, along the Santa Ana River, and

within San Jacinto Valley are included in

the MSHCP Conservation Area. The

current population size of the white-faced

ibis is unknown due to its nomadic and

transient nature.

About 60 acres (about 15 percent) of

potential primary nesting Habitat for

the white-faced ibis will be outside the

Criteria Area and Public/Quasi-Public

designations, and individuals within

these areas will be subject to

Incidental Take consistent with the

Plan. About 186,500 acres of

potential secondary foraging Habitat

for the white-faced ibis will be outside

t h e C r i t e r i a A r e a a n d

Public/Quasi-Public designations, or

about 76 percent of the total potential

Habitat. Of this, there is no primary

nesting Habitat within Rural/

Mountainous designations and a

limited amount of secondary foraging

Habitat (6,290 acres or 3 percent).

The Rural/Mountainous designation

areas are not within areas used by the

white-faced ibis. It should be noted

that the Riparian/Riverine Areas and

Vernal Pools policy presented in

Section 6.1.2 of the MSHCP, Volume

I, will apply to wetland Habitat areas

outside the MSHCP Conservation

Area.

None 8 General Management Measure 4. Reserve Managers will

manage this species with regard to flood control, Habitat

fragmentation, human disturbance and pesticide use.

white-tailed kite

(Elanus leucurus)

2 The white-tailed kite is widely distributed throughout the

MSHCP Plan Area within suitable Habitat in the Riverside

Lowlands, Santa Ana Mountains, and San Jacinto

Foothills Bioregions. It is absent from the higher elevation

Bioregions and the desert transition bioregion. There are

Objective 1: Include within the MSHCP Conservation Area at

least 19,880 acres of suitable breeding Habitat

including riparian scrub, woodland, and forest,

peninsular juniper woodland and scrub, and oak

woodland and forest within the Riverside Lowlands,

Conservation for this species will be

achieved by inclusion of at least 301,770

acres of suitable Conserved Habitat

including 281,890 acres of foraging and

19,880 acres of breeding Habitat. Ten of

About 400,190 acres (57 percent) of

potential breeding and foraging Habitat

for the white-tailed kite will be outside

t h e C r i t e r i a A r e a a n d

Public/Quasi-Public designations and

None 8 3 General Management Measure 4. Reserve Managers will

manage, protect, and buffer from disturbance, the known winter

roost area along San Timoteo Creek and any winter roost

locations identified in the MSHCP Conservation Area in the

future. Buffering of the winter roost area will include

Page 90: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-90

several Core Areas including the Prado Basin/Santa Ana

River, Lake Mathews-Estelle Mountain, Temescal Wash,

Wasson Canyon, Murrieta Creek, Santa Rosa Plateau,

Temecula Creek, Vail Lake, Wilson Valley, Lake Skinner,

and Lake Perris/Mystic Lake. Concentrations of winter

roosting white-tailed kites occur along San Timoteo Creek

and in the Murrieta Hot Springs area of French Valley.

White-tailed kites typically use riparian scrub, forest and

woodland, and oak woodland and forest for breeding and

use a wide variety of more open grassland/agricultural

land and scrub lands for foraging.

Santa Ana Mountains, and San Jacinto Foothills

Bioregions.

Objective 2: Include within the MSHCP Conservation Area at

least 10 core breeding areas including 1) the Prado

Basin/ Santa Ana River (9,670 acres), 2) Lake

Mathews-Estelle Mountain (Existing Core C; 15,610

acres), 3) Temescal Wash (Subunit 3 of Temescal

Canyon Area Plan plus Proposed Constrained

Linkage 6 and Proposed Linkage 2; 4,290 acres), 4)

Wasson Canyon (Subunit 5 of Elsinore Area Plan;

2,320 acres), 5) Murrieta Creek (Subunit 1 of

Southwest Area Plan; 2,060 acres), 6) Temecula

Creek (Subunit 2 of Southwest Area Plan; 850

acres), 7) Vail Lake (Subunit 3 of Southwest Area

Plan; 12,320 acres), 8) Wilson Valley (Subunit 2 of

Southwest Area Plan; 33,540 acres), 9) Lake

Skinner including the Diamond Valley Lake area

(Existing Core C plus Proposed Extension of

Existing Core 5, 6, 7; 29,060 acres), and 10) Lake

Perris/Mystic Lake (Existing Core H; 17,470 acres).

Objective 3: Include within the MSHCP Conservation Area at

least 281,890 acres of suitable foraging Habitat

including agriculture, grasslands, cismontane alkali

marsh, playas and vernal pools, freshwater marsh,

Riversidean alluvial fan sage scrub, coastal sage

scrub, and chaparral within the Riverside Lowlands,

Santa Ana Mountains, and San Jacinto Foothills

Bioregions.

Objective 4: Include within the MSHCP Conservation Area,

protect, and buffer from disturbance, the known

winter roost area along San Timoteo Creek and any

winter roost locations identified in the MSHCP

Conservation Area in the future. Buffering of the

winter roost area will include Conservation of

undeveloped Habitat within a 250 meter radius

within the MSHCP Conservation Area around the

roost site and may include a variety of Habitats.

the Core Areas of the white-tailed kite will

be conserved and one of the winter roost

areas will be conserved in large blocks of

Habitat within the MSHCP Conservation

Area. The winter roost areas will be

provided protection and buffered from

disturbance which wi l l inc lude

Conservation of undeveloped Habitat

within a 250 meter radius around the roost

site. The continued use of, and

successful reproduction at 75 percent of

the Core breeding Areas (including any

Core breeding Areas identified in the

MSHCP Conservation Area in the future)

will be maintained and documented once

every 3 years. Successful reproduction is

defined as a nest which fledged at least

one known young. The current population

size of the white-tailed kite is unknown,

however a sizable data base is present

within the UCR database and the species

appears well represented throughout the

MSHCP Plan Area within the Riverside

Lowland, Santa Ana Mountains, and San

Jacinto Foothills Bioregions.

individuals within these areas are

subject to Incidental Take consistent

with the Plan. Of this, approximately

96,620 acres (14 percent) of potential

Hab i t a t a re l ocated with in

Rural/Mountainous designation areas.

A total of 9,730 acres of potential

breeding Habitat (33 percent) is

outside of the MSHCP Conservation

Area. A total of 390,460 acres, 58

percent, of the potential foraging

Habitat is outside of the MSHCP

Conservation Area. While the

Rural/Mountainous areas are not

included within the MSHCP

Conservation Area and will not be

managed for the benefit of wildlife, the

anticipated levels of development in

these areas may be consistent with

maintaining some Habitat for the

white-tailed kite. A total of 39 point

localities will be outside of the MSHCP

Conservation Area. However, these

locations, if within a wetland area, will

continue to receive protection by the

Riparian/Riverine Areas and Vernal

Pools Policy (Section 6.1.2). No Take

of active nest sites will be permitted.

Most of the Core breeding Area in the

Santa Rosa Plateau area is within the

Rural/Mountainous designation and

will not be conserved. The Core

winter roost Area of the white-tailed

kite in the Murrieta Hot Springs area of

French Valley will not be conserved.

Conservation of undeveloped Habitat within a 250 meter radius

within the MSHCP Conservation Area around the roost site and

may include a variety of Habitats. Reserve Managers will ensure

(once every 3 years) the continued use of, and successful

reproduction at, 75% of the Core breeding Areas (including any

Core breeding Areas identified in the MSHCP Conservation Area

in the future). Reserve Managers will manage this species with

regard to Habitat loss and urbanization, Habitat degradation

especially the loss of nest trees and foraging Habitat, clean

farming techniques, competition for nest sites with other raptors

and corvids.

Page 91: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-91

Objective 5: Within the MSHCP Conservation Area, maintain

(once every 3 years) the continued use of, and

successful reproduction at 75 percent of the Core

breeding Areas (including any Core breeding Areas

identified in the MSHCP Conservation Area in the

future). Successful reproduction is defined as a

nest which fledged at least one known young.

Williamson’s sapsucker

(Sphyrapicus thyroideus)

2 The species has declined rangewide, presumably from

loss of large snags for nesting. Very little is known about

its status, abundance, and distribution in the MSHCP Plan

Area; there are only 5 known data points. Its

Conservation is largely dependent on activities within the

San Bernardino National Forest and the Mt. San Jacinto

State Park and private inholdings on these lands. Habitat

for the Williamson's sapsucker includes montane

coniferous forest dominated by lodgepole pines and firs,

and oak woodlands and forests in the San Bernardino and

San Jacinto mountains. Because the Habitat types that

the Williamson's sapsucker uses for breeding and

foraging are known but it requires specific micro-Habitat

for nesting sites (snags), it has been placed as a Group

2 species.

Objective 1: Include within the MSHCP Conservation Area at

least 34,020 acres of suitable breeding, wintering,

and dispersal Habitat for the Williamson's sapsucker

including oak woodland and forest and montane

coniferous forest within the San Bernardino

Mountains and San Jacinto Mountains Bioregions.

Objective 2: Include within the MSHCP Conservation Area

micro-Habitat (i.e., groups of large snags) in

potential nesting Habitat.

Conservation for this species will be

achieved by inclusion of at least 34,020

acres of suitable Conserved Habitat and

will include the preferred microHabitat

composed of groups of snags. The

current population size of this species is

not known and data on point localities is

very low.

About 12,270 acres (27 percent) of

potential Habitat for the Williamson's

sapsucker will be outside the Criteria

Area o r Publ ic/Quasi-Publ i c

designations, and individuals within

this Habitat will be subject to

Incidental Take consistent with the

Plan. Of this, approximately 890 acres

(2 percent) of potential Habitat are

located within Rural/Mountainous

designation areas. This does not

represent a significant contribution to

the Conservation of the Williamson's

sapsucker and the areas are located

outside of the important breeding

Habitat for the species.

None 8 Reserve Managers will manage known and future occurrences

of this species with regard to prevent Habitat degradation and

loss of snags, and timber harvesting.

Wilson’s warbler

(Wilsonia pusilla)

1 The Wilson's warbler has a sparse and widespread

distribution within almost every Habitat that occurs within

the MSHCP Plan Area. Although few documented

records exist for the Wilson's warbler within the Plan

Area, the literature suggests that the species forages

within the lowland and foothills Bioregions of the Plan

Area in almost every Habitat as a transient in the spring

and fall and breeds within the mountain Bioregions in

shrub and scrub Habitat, wet and montane meadow, and

edges of riparian and forested Habitats. The Wilson's

warbler has not been reported to winter within the Plan

Area. Because the Wilson's warbler is opportunistic and

widespread during migration and its breeding Habitat

requirements are well known, it is classified as a Group 1

species.

Objective 1: Include within the MSHCP Conservation Area at

least 198,850 acres of suitable montane meadow,

riparian scrub, oak woodland and forest, coastal

sage scrub, chaparral, and Riversidean alluvial fan

sage scrub within the San Bernardino Mountains,

San Jacinto Mountains, and Santa Ana Mountains

Bioregions.

Objective 2: Include within the MSHCP Conservation Area at

least 192,140 acres of suitable dispersal and

migration Habitat and interconnecting Linkages

within the MSHCP Conservation Area for transient

migration movements including grassland,

Riversidean alluvial fan sage scrub, coastal sage

scrub, desert scrubs, chaparral, peninsular juniper

woodland and scrub, riparian scrub, woodland, and

forest, and oak woodland and forest.

Conservation for this species will be

achieved by inclusion of at least 198,850

acres of suitable Conserved Habitat

including the breeding Habitat composed

of montane meadow, chaparral, coastal

sage scrub, Riversidean alluvial fan sage

scrub, riparian scrub, woodland, and

forest, and oak woodlands and forest. In

addition, at least 192,140 acres of suitable

Conserved Habitat including the

transient/migration Habitat are included in

the MSHCP Conservation Area. The

MSHCP Conservation Area has been

designed to preserve the large blocks of

areas that contain a variety of potentially

suitable Habitats for foraging use during

migration as well as very large blocks that

contain potentially suitable nesting Habitat

for the species.

The Incidental Take of the Wilson's

warbler is difficult to quantify due to

our limited knowledge of its

distribution and abundance within the

Plan Area. The maximum level of

Incidental Take of Wilson's warblers

can be anticipated by the loss of the

number of acres of potential Habitat

that will become unsuitable for this

species. About 71,030 acres (26

percent) of potential breeding Habitat

for the Wilson's warbler will be outside

t h e C r i t e r i a A r e a a n d

P u b l ic / Q u a s i- P u b l i c L a n d s

designations and individuals within

these areas will be subject to

Incidental Take consistent with the

Plan. Of this, approximately 39,460

acres (15 percent) will be within

None 8 General Management Measures 1 and 4.

Page 92: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-92

Rural/Mountainous designation areas.

About 219,680 acres (53 percent)

potent ial t ransient migratory

movement Habitat for the Wilson's

warbler will be outside the Criteria

Area and Public/ Quasi-Public Lands

designations. Of this, approximately

58,800 acres (14 percent) will be

within Rural/Mountainous designation

areas. Although these areas will not be

part of the managed MSHCP

Conservation Area, the anticipated

levels of development in these areas

may be consistent with the continued

presence of the Wilson's warbler.

yellow-breasted chat

(Icteria virens)

2 The yellow-breasted chat is sparsely and widely

distributed throughout the MSHCP Plan Area within

suitable Habitat. There appear to be several Core Areas

including the Prado Basin/Santa Ana River, Temescal

Wash including the Alberhill Creek tributary, Temecula

Creek, Vail Lake area, San Timoteo Creek, and Canyon

Lake. Because this species is associated with riparian

woodland and riparian scrub Habitats, occurs in a wide

but sparse distribution in the lowland and foothills areas

of the Plan Area within suitable Habitat, but has specific

locations that are Core Areas, this species will be

managed at a landscape level with site specific

requirements.

Objective 1: Include within the MSHCP Conservation Area at

least 9,430 acres of suitable Habitat for the

yellow-breasted chat including riparian woodland

and riparian scrub Habitat within the Riverside

Lowlands and San Jacinto Foothills Bioregions.

Objective 2: Include within the MSHCP Conservation Area at

least 5 Core Areas including the Prado Basin/Santa

Ana River (9,670 acres), Temescal Wash including

Alberhill Creek (estimated as Subunit 3 of Temescal

Canyon Area Plan plus Proposed Constrained

Linkage 6 and Proposed Linkage 2 at 4,290 acres),

Temecula Creek (Subunit 2 of Southwest Area Plan;

850 acres), Vail Lake (Subunit 3 of Southwest Area

Plan; 12,320 acres), and San Timoteo Creek

(Subunit 3 of The Pass Area Plan; 2,290 acres) and

maintain adequate Habitat Linkages between Core

Areas and smaller drainages and tributaries.

Objective 3: Within the MSHCP Conservation Area, maintain

(once every 5 years) the continued use of, and

successful reproduction at 75 percent of the Core

Areas (including any Core Areas identified in the

MSHCP Conservation Area in the future).

Successful reproduction is defined as a nest which

fledged at least one known young.

Conservation for this species will be

achieved by the inclusion of at least 9,430

acres of suitable Conserved Habitat and

five Core Areas which total 29,420 acres.

The MSHCP has been designed to

preserve the important Core Area

representing the larger known populations

at Prado Basin/Santa Ana River as well as

four other Core Areas. In addition, the

MSHCP Plan will maintain (once every 5

years) the continued use of, and

successful reproduction at 75 percent of

the Core Areas (including any Core Areas

identified in the MSHCP Conservation Area

in the future). Successful reproduction is

defined as a nest which fledged at least

one known young. Preservation of sites

conta in ing smaller numbers of

yellow-breasted chats are likely to be just

as important as the large population sites.

These small populations, documented

above to be largely preserved are

important to prevent further isolation of

remaining breeding groups. Additionally,

some of these smaller riparian Habitat

patches may provide restoration

About 2,780 acres (23 percent) of

p o t e n t i a l H a b i t a t f o r t h e

yellow-breasted chat will be outside

t h e C r i t e r i a A r e a a n d

Public/Quasi-Public designations, and

individuals within these areas may be

subject to Incidental Take. A total of

one of six Core Areas, the population

located at Canyon Lake, will not be

conserved within the MSHCP

Conservation Area.

None 5 5 General Management Measure 4. Reserve Managers will

maintain ecological processes within occupied Habitat and

appropriate new areas within the MSHCP Conservation Area.

Each Reserve Manager responsible for a Core Area identified in

the Species Account will evaluate the condition of the riparian

vegetation within the Core Areas and maintain a program to

enhance and/or create riparian Habitat and implement exotic

species control programs within the Core Areas. Reserve

Managers will ensure (once every 5 years) the continued use of,

and successful reproduction at, 75% of the Core Areas

(including any Core Areas identified in the MSHCP Conservation

Area in the future). This species will also be managed for

possible brown-headed cowbird parasitism.

Page 93: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-93

opportunities that are no longer available

within some of the larger riparian systems.

yellow warbler

(Dendroica petechia

brewsteri)

2 The yellow warbler is relatively well distributed throughout

the MSHCP Plan Area within suitable Habitat. There

appear to be several Core Areas including the Prado

Basin/Santa Ana River, Temescal Canyon and its

tributaries, Wasson Canyon, Temecula Creek, Murrieta

Creek, Vail Lake area, Wilson Creek, San Timoteo Creek,

Santa Rosa Plateau, and drainages and woodland areas

within the San Bernardino National Forest. Because

Habitat characteristics of the yellow warbler are well

known to include riparian scrub and forest and woodland

and the yellow warbler occurs in all Bioregions of the Plan

Area, but has specific locations that are core areas, the

yellow warbler is classified as a Group 2 species and will

be managed on a landscape level with site specific

requirements.

Objective 1: Include within the MSHCP Conservation Area at

least 34,080 acres of suitable nesting and foraging

Habitat for the yellow warbler including riparian

scrub, woodland, and forest and oak woodland and

forest.

Objective 2: Include within the MSHCP Conservation Area at

least 9 Core Areas including Prado Basin/Santa

Ana River (9,670 acres), Temescal Canyon

including tributaries such as Alberhill Creek

(estimated as Subunit 3 of Temescal Canyon Area

Plan plus Proposed Constrained Linkage 6 and

Proposed Linkage 2; 4,290 acres), Wasson

Canyon (Subunit 5 of Elsinore Area Plan; 2,320

acres) Temecula Creek (Subunit 2 of Southwest

Area Plan; 850 acres), Murrieta Creek (Subunit 1 of

Southwest Area Plan; 2,060 acres), Vail Lake

(Subunit 3 of Southwest Area Plan; 12,320 acres),

Wilson Creek (Subunit 2 of REMAP Area Plan;

33,540 acres), San Timoteo Creek (Subunit 3 of

The Pass Area Plan; 2,290 acres), and drainages

and woodland areas within the San Bernardino

National Forest (13,720 acres).

Objective 3: Within the MSHCP Conservation Area, maintain

(once every 5 years) the continued use of, and

successful reproduction at 75 percent of the Core

Areas (including any Core Areas identified in the

MSHCP Conservation Area in the future).

Successful reproduction is defined as a nest which

fledged at least one known young.

Conservation for this species will be

achieved by inclusion of at least 34,080

acres of suitable Conserved Habitat. Nine

of the ten Core populations will be

conserved in the MSHCP Conservation

Area. Conservation of the small patches

of riparian Habitat and the sites containing

small numbers of yellow warblers may

contribute to the populations within the

Plan Area. These small populations,

documented above to be largely preserved

are important to prevent further isolation of

remaining Core breeding groups. In

addition, Objective 3 for this species will

maintain (once every 5 years) the

continued use of, and successful

reproduction at 75 percent of the Core

Areas (including any Core Areas identified

in the MSHCP Conservation Area in the

future). Successful reproduction is

defined as a nest which fledged at least

one known young.

The Incidental Take of the yellow

warbler is difficult to quantify due to

our limited knowledge of its

distribution and abundance within the

Plan Area. The maximum level of

Incidental Take of yellow warblers can

be anticipated by the loss of the

number of acres of potential Habitat

that will become unsuitable for this

species. About 12,710 acres (27

percent) of potential Habitat for the

yellow warbler will be outside the

Criteria Area or Public/Quasi-Public

designations, and individuals within

these areas will be subject to

Incidental Take consistent with the

Plan. Of this, approximately 5,390

acres (12 percent) of potential Habitat

will be located within areas designated

as Rural/Mountainous. While the

Rural/Mountainous areas are not

included wi th in the MSHCP

Conservation Area, will not be

managed for the benefit of wildlife, and

the existing zoning/ordinances for

these areas do not preclude

development and could allow

substantial fragmentation and/or

degradation of Habitat for proposed

covered species, the anticipated levels

of development in these areas may be

consistent with maintaining some

Habitat for the yellow warbler. The

Core Area within the Santa Rosa

Plateau will be outside the MSHCP

Conservation Area and individuals

within this area will be subject to

Incidental Take consistent with the

Plan.

None 5 5 General Management Measure 4. Reserve Managers will

maintain the riparian Habitats within the Core population Areas.

The maintenance of Habitat will be accomplished by preserving

the hydrological processes within the drainages that support the

potential Habitat and by selectively rehabilitating or revegetating

all such areas that are currently fragmented or otherwise

degraded by, for instance, infestations of exotic plants and

animals (including brown-headed cowbirds). Each Reserve

Manager responsible for a Core Area identified in the Species

Account will evaluate the condition of the riparian vegetation

within the Core Area and maintain a program to enhance and/or

create riparian Habitat within the Core Area. Reserve Managers

will ensure (once every 5 years) the continued use of, and

successful reproduction at, 75% of the Core Areas (including

any Core Areas identified in the MSHCP Conservation Area in the

future).

Page 94: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-94

MAMMALS

Aguanga kangaroo rat

(Dipodomys merriami

collinus)

3 The Aguanga kangaroo rat has a narrow distribution

within the Plan Area, with known localities including

Temecula Creek in the Aguanga area and Wilson Creek in

the Sage area. The Aguanga kangaroo rat typically is

found in Riversidean alluvial fan sage scrub, but may

occur in Riversidean sage scrub, chaparral and grassland

in uplands and tributaries in proximity to Riversidean

alluvial fan sage scrub Habitats. Conservation of

Riversidean alluvial fan and upland sage scrub in

Temecula and Wilson creeks is essential for Conservation

of this species in the Plan Area. Monitoring and adaptive

management to maintain and enhance Habitat in these

areas also will be important for this species because of

the small amount of remaining Habitat. The Aguanga

kangaroo rat is a Group 3 species because of its narrow

distribution in the Plan Area and the need for population

monitoring and adaptive management.

The Aguanga kangaroo rat is on the Additional Survey

Needs and Procedures (Section 6.3.2) list and surveys

for the species will be conducted as part of the project

review process for all public and private projects within

the mammal species survey area where suitable Habitat

is present (see Mammal Species Survey Area Map,

Figure 6-5 of the MSHCP, Volume 1). Aguanga

kangaroo rat localities found as a result of survey efforts

shall be conserved in accordance with the procedures

described within Section 6.3.2, MSHCP, Volume 1.

Objective 1: Include within the MSHCP Conservation Area 5,484

acres (81 percent) of occupied or suitable Habitat

within the historic floodplains of Temecula Creek

and Wilson Creek, and their tributaries.

Objective 2: Surveys for Aguanga kangaroo rat will be

conducted as part of the project review process for

public and private projects within the mammal

species survey area where suitable Habitat is

present (see Mammal Species Survey Area Map,

Figure 6-5 of the MSHCP, Volume 1). Aguanga

kangaroo rats located as a result of survey efforts

shall be conserved in accordance with the

procedures described within Section 6.3.2 of the

MSHCP, Volume 1.

Objective 3: Within the 5,484 acres of occupied and suitable

Habitat in the MSHCP Conservation Area, ensure

that at least 75 percent (4,113 acres) of the total is

occupied and that at least 20 percent of the

occupied Habitat (approximately 823 acres)

supports a medium or higher population density (5

to 15 individuals per hectare; based on McKernan

1997 studies of the San Bernardino kangaroo rat) of

the species as measured across any 8-year period

(i.e., the approximate length of the weather cycle).

Objective 4: Within the MSHCP Conservation Area, Reserve

Managers shall maintain or, if feasible, restore

ecological processes within the historic floodplains

of Temecula Creek and Wilson Creek, their

tributaries, and other localities within the Criteria

Area where the Aguanga kangaroo rat is detected in

the future, given existing constraints and activities

covered under the Plan. Maintenance and/or

restoration of ecological processes within the

MSHCP Conservation Area may include: 1) allowing

for natural dynamic fluvial processes of flooding,

scouring and Habitat regeneration, and possibly fire,

to maintain healthy alluvial fan sage scrub Habitat;

2) careful planning and design of existing and future

The MSHCP Conservation Area will

include at least 5,484 acres (81 percent)

of suitable Habitat. Most of this Habitat

will be in the Wilson Creek and Temecula

Creek drainages. Although the total

acreage of suitable Habitat conserved is

not large, it does comprise 81 percent of

identified suitable Habitat in the Plan Area

and includes the two known occupied

areas. With implementation of the

MSHCP, populations of the Aguanga

kangaroo rat should remain viable in the

Plan Area.

Approximately 1,324 acres (19

percent) of suitable Habitat for the

Aguanga kangaroo rat would be

outside the MSHCP Conservation

Area. No currently known populations

of the Aguanga kangaroo rat would be

subject to Incidental Take.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures).

8 Within the 5,484 acres of occupied and suitable Habitat in the

MSHCP Conservation Area, Reserve Managers will ensure that

at least 75 percent of the total is occupied and that at least 20

percent of the occupied Habitat (approximately 823 acres)

supports a medium or higher population density (5 to 15

individuals per hectare; based on McKernan 1997 studies of the

San Bernardino kangaroo rat) of the species as measured across

any 8-year period (i.e., the approximate length of the weather

cycle). Reserve Managers will maintain or, if feasible, restore

ecological processes within the historic flood plains of Temecula

Creek and Wilson Creek, their tributaries, and other localities

within the Criteria Area where the Aguanga kangaroo rat is

detected in the future, given existing constraints and activities

covered under the Plan. Reserve Managers will maintain or, if

feasible, restore ecological processes which shall include 1)

allowing for natural dynamic fluvial processes of flooding,

scouring and Habitat regeneration, and possibly fire, to maintain

healthy alluvial sage scrub Habitat, 2) careful planning and

design of existing and future authorized uses that may affect

natural processes such as flood control, water Conservation,

and sand and gravel mining, 3) control of other uses and

disturbances such as farming and discing for weed abatement,

heavy grazing, off-road vehicles, and vandalism, and 4) control

of invasive exotic species. Management activities will also

address grazing.

Page 95: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-95

authorized uses that may affect natural processes

such as flood control, water Conservation, and

sand and gravel mining; 3) control of other uses

and disturbances such as farming and discing for

weed abatement, heavy grazing, off-road vehicles,

and vandalism; and 4) control of invasive exotic

species.

bobcat

(Lynx rufus)

2 The bobcat is widespread throughout the Plan Area. This

species requires large expanses of relatively undisturbed

brushy and rocky Habitats near springs or other perennial

water sources. In addition to needing large Habitat

blocks, a key factor for Conservation of the bobcat in the

Plan Area is the provision of adequate dispersal and

movement Habitat, especially at potential bottleneck

areas. Wildlife crossings of major roadways will need to

be designed to accommodate bobcats. Use of key

movement areas will need to be monitored to ensure that

bobcats are safely using these areas.

Objective 1: Include within the MSHCP Conservation Area

469,063 acres (57 percent) of suitable Habitat in the

Plan Area. Key Conservation areas comprising large

contiguous Habitat blocks include the Santa Rosa

Plateau-Santa Ana Mountains, Agua Tibia

Wilderness-Palomar Mountains, Vail Lake-Wilson

Val ley-Aguanga, Anza-Cahui l la va l leys,

Badlands-San Jacinto Wildlife Area-Lake Perris, San

Jacinto Mountains, Lake Mathews-Estelle Mountain,

Lake Skinner-Diamond Valley Lake, and Santa Ana

River-Prado Basin.

Objective 2: Include within the MSHCP Conservation Area Habitat

Linkages and movement corridors between large

Core Areas that allow dispersal and movement of

bobcats throughout the Plan Area and to areas

outside of the Plan Area. Key Habitat connections

and corridors include the following:

! Santa Ana Mountains to Chino Hills via Fresno

Canyon-Green River

! Santa Ana Mountains to Lake Mathews-Estelle

Mountain via Indian Canyon and Horsethief

Canyon

! Santa Ana Mountains to Agua Tibia

Wilderness-Palomar Mountains via Pechanga

Creek or future wildlife overpass over

Interstate15 north of Rainbow (possibly in San

Diego County)

! Along length of Santa Ana River between

Rubidoux-North Riverside and Prado Basin

! Lake Skinner-Diamond Valley Lake to Sage-San

Jacinto Mountains via Tucalota Creek and

adjacent uplands in Reserve or Rural/

Mountainous designation areas

Conservation for the bobcat will be

achieved by inclusion of at least 469,000

acres of suitable Conserved Habitat.

Although the current population of the

bobcat in the Plan Area is unknown, it is

assumed to be widespread in suitable

Habitat. Currently its distribution in the

Plan Area is likely more constrained by

limited Habitat connections than from too

little Habitat. Large connected Habitat

blocks in the MSHCP Conservation Area

will provide for movement areas that are

adequate to support the life history needs

of the bobcat, including foraging,

reproduction, and dispersal activities.

The main Habitat areas for bobcats in the

MSHCP Conservation Area include the

Santa Ana Mountains-Santa Rosa Plateau,

the Agua Tibia Wilderness-Palomar

Mountains, the San Jacinto Mountains and

foothills, Lake Mathews-Estelle Mountain,

Lake Skinner-Diamond Valley Lake, the

Badlands, Santa Ana River-Prado Basin,

and the foothills of the San Bernardino

Mountains.

About 347,000 acres (43 percent) of

suitable Habitat for the bobcat would

be outside the MSHCP Conservation

Area. Lands outside the MSHCP

Conservation Area tend to be in areas

that currently are more fragmented by

urban and agricultural development

and thus less suitable for long-term

Conservation of the bobcat.

None 8 Reserve Managers will maintain or improve functionality of

dispersal routes. Reserve Managers will evaluate existing

undercrossings in key areas for their adequacy and will improve

as necessary to convey bobcats. Key crossings that will be

evaluated include, but are not limited to, the following: the

crossing of State Highway 91 that connects the Santa Ana

Mountains with the Chino Hills via Fresno Canyon-Green River,

the crossings of Interstate 15 that connect the Santa Ana

Mountains with Lake Mathews-Estelle Mountain via Indian

Canyon and Horsethief Canyon, the crossing(s) of Interstate 15

that connect the Santa Ana Mountains with the Agua Tibia

Wilderness-Palomar Mountains via Pechanga Creek or the

possible "Rainbow" overpass, and undercrossings of State

Highway 60 in the Badlands.

Page 96: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-96

! Along Badlands to San Jacinto Wildlife

Area-Lake Perris and San Jacinto Mountains

! Badlands to San Bernardino Mountains through

Cherry Valley

! San Jacinto Mountains to San Bernardino

Mountains via Banning Canyon and San

Gorgonio Wash

Objective 3: Within the MSHCP Conservation Area, maintain or

improve functionality of dispersal routes. Existing

undercrossings in key areas will be evaluated for

their adequacy and improved as necessary to

convey bobcats. Key crossings that will be

evaluated include, but are not limited to, the

following:

! The crossing of State Highway 91 that connects

the Santa Ana Mountains with the Chino Hills

via Fresno Canyon-Green River.

! The crossings of Interstate 15 that connect the

San ta Ana Mounta ins w i th Lake

Mathews-Estelle Mountain via Indian Canyon

and Horsethief Canyon.

! The crossing(s) of Interstate 15 that connect

the Santa Ana Mountains with the Agua Tibia

Wilderness-Palomar Mountains via Pechanga

Creek or the possible "Rainbow" overpass.

! Undercrossings of State Highway 60 in the

Badlands.

brush rabbit

(Sylvilagus bachmani)

1 The brush rabbit occurs throughout the Plan Area in

suitable Habitat, including chaparral, coastal sage scrub

(Diegan coastal sage scrub, Riversidean sage scrub, and

alluvial fan sage scrub), riparian and woodland Habitats,

coniferous forest, and agricultural areas (grove/orchard,

and field crops). They occur at all elevations up to 6,000

feet. Geographical areas with apparent concentrations of

observations include Sage, Anza Valley, Santa Rosa

Plateau, and the foothills of the San Jacinto Mountains.

The brush rabbit population size in the Plan Area is

unknown. Although relatively little is known of this

species in the Plan Area, with a large enough MSHCP

Conservation Area, specific management regimes will not

Objective 1: Include within the MSHCP Conservation Area

382,115 acres (63 percent) of suitable Habitat in the

Plan Area. Conservation in the primary core Habitat

areas includes the Existing Core A (10,740 acres),

Existing Core B (71,490 acres contiguous with

Cleveland National Forest in Orange County),

Existing Core C (15,610 acres), Existing Core F

(8,360 acres), Existing Core G (4,490 acres),

Existing Core H (17,470 acres), Existing Core I

(9,610 acres contiguous with San Bernardino

National Forest in San Bernardino County), Existing

Core J (24,370 acres), Existing Core K (149,750

acres), Existing Core L (24,750 acres contiguous

Conservation for the brush rabbit will be

achieved by inclusion of approximately

382,000 acres of suitable Conserved

Habitat in the MSHCP Conservation Area.

In addition, large Habitat blocks

throughout the Plan Area with

interconnecting Linkages will be

conserved, including the Santa Ana

River-Prado Basin, Santa Rosa

Plateau-Santa Ana Mountains, Agua Tibia

Wilderness-Palomar Mountains, San

Jacinto Mountains and foothills, Lake

Skinner-Diamond Valley Lake, Sage-Vail

Approximately 223,195 acres (37

percent) of suitable Habitat for the

brush rabbit will not be conserved.

Suitable Habitat outside the MSHCP

Conservation Area tends to be in areas

that are more fragmented by urban

and agricultural development and less

su i table fo r the long- te rm

Conservation of the brush rabbit.

None 8 General Management Measure 1.

Page 97: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-97

be necessary. All that appears to be necessary for

Conservation of the brush rabbit are large Habitat areas,

adequate vegetative cover, and suitable dispersal and/or

movement Linkages.

with Cleveland National Forest in San Diego County),

Existing Core M (10,460 acres contiguous with

Cleveland National Forest in San Diego County),

Proposed Core 1 (7,470 acres), Proposed Core 2

(5,050 acres), Proposed Core 3 (24,920 acres),

Proposed Core 4 (11,890 acres), Proposed Core 5

(3,220 acres), Proposed Core 6 (4,290 acres), and

Proposed Core 7 (50,000 acres).

Objective 2: Include within the MSHCP Conservation Area 44,000

acres of dispersal and/or movement Linkages

between large blocks of conserved Habitat.

Lake-Wilson Valley, and the Anza and Tule

valleys. The Santa Ana River-Prado Basin

and Santa Rosa Plateau-Santa Ana

Mountains may be functionally isolated

from the other Habitat areas by the

Riverside Freeway (State Highway 91) and

Interstate 15, but they are large enough

Habitat areas (including portions in Orange

and San Diego counties) to sustain viable

populations. The other Habitat blocks are

reasonably well connected and rabbits

should be able to disperse throughout

these areas.

coyote

(Canis latrans)

1 The coyote population is common and widespread

throughout the Plan Area. It occurs in all areas of the

Plan Area except the most highly urbanized areas. The

coyote is also highly tolerant of human activities and

coexists well with humans unless trapped, hunted or

otherwise harassed (e.g., disturbance of breeding dens).

The coyote is considered to be a Group 1 species

because of its broad distribution and the ability to manage

for this species on a landscape level.

Objective 1: Include within the MSHCP Conservation Area

489,500 acres (50 percent) of suitable Habitat in the

Plan Area.

Objective 2: Include within the MSHCP Conservation Area Habitat

Linkages between large Habitat blocks. Key Habitat

Linkages that likely will be used by coyotes to move

between large Habitat blocks include:

! Santa Ana River

! Badlands/San Timoteo Creek

! Indian Canyon and Horsethief Canyon crossings

of I-15

! Cole Canyon-Murrieta Creek

! Warm Springs Creek

! French Valley tributary to Warm Springs Creek

! Generally continuous upland Habitat from Lake

Mathews to Wildomar

! Gavilan Hills

! San Jacinto River

! Temecula Creek-Santa Margarita River

! Kolb Creek/Arroyo Seco

! Tucalota Creek

! Wilson Creek

! Tule Creek

! San Gorgonio Wash

Conservation for the coyote will be

achieved by inclusion of 489,500 acres of

suitable Conserved Habitat and

Conservation of key Habitat Linkages. The

Plan Area also is contiguous with coyote

Habitat in eastern Riverside, San

Bernardino, Orange and San Diego

counties.

Coyotes will be subject to Incidental

Take on lands outside the MSHCP

Conse r va t ion A rea t o t a l i ng

approximately 495,000 acres (50

percent) of suitable Habitat. Of this

unconserved Habitat, about 148,000

acres are existing agricultural land that

may continue to provide some Habitat

value in the future. Also, of the

495,000 acres authorized for

Incidental Take, approximately

111,000 acres are in the Rural/

Mountainous designated areas.

Although increased negative

interactions between coyotes and

humans are anticipated in the

Rural/Mountainous areas (e.g.,vehicle

collisions, disturbance of dens, and

possibly animal control actions where

coyotes become pests or are

perceived as a danger to public health

and safety), coyotes likely will still use

these areas.

None 8 General Management Measure 1.

Page 98: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-98

Dulzura kangaroo rat

(Dipodomys simulans)

1 The Dulzura kangaroo rat occurs throughout the Plan Area

in coastal sage scrub (including Diegan and Riversidean

upland sage scrubs and alluvial fan sage scrub), sage

scrub/grassland ecotones, chaparral, and desert scrubs

at all elevations up to 2,600 feet. This species is

considered to be fairly common in suitable Habitat. No

specific management regimes are needed to maintain an

adequate amount of Habitat for this species, although

management of Habitat for species such as the Stephens'

kangaroo rat, San Bernardino kangaroo rat, Los Angeles

pocket mouse and California gnatcatcher may benefit the

Dulzura kangaroo rat.

Objective 1: Include within the MSHCP Conservation Area

198,200 acres (58 percent) of suitable Habitat in the

Plan Area. The majority of Conservation will occur

in the following existing and proposed Core Areas:

Existing Core C (15,610 acres), Existing Core F

(8,360 acres), Existing Core G (4,490 acres),

Existing Core H (17,470 acres), Existing Core I

(9,610 acres), Existing Core J (24,370 acres),

Existing Core M (10,460 acres), Proposed Core 1

(7,470 acres), Proposed Core 2 (5,050 acres),

Proposed Extension of Existing Core 2 (8,100

acres), Proposed Core 3 (24,920 acres), Proposed

Core 4 (11,890 acres), Proposed Core 5 (3,220

acres), and Proposed Core 7 (50,000 acres).

Objective 2: Include within the MSHCP Conservation Area

approximately 21,000 acres of dispersal and/or

movement Linkages between Core Habitat blocks,

including the following: Proposed Linkage 3 (5,540

acres), Proposed Linkage 8 (5,470 acres), Proposed

Linkage 10 (1,520 acres), Proposed Linkage 11

(1,670 acres), Proposed Linkage 13 (1,920 acres),

Proposed Linkage 14 (4,320 acres), and Proposed

Linkages 17 and 18 (610 acres).

The MSHCP Conservation Area will

include at least 198,200 acres (58

percent) of suitable Habitat. With

implementation of the MSHCP,

populations of the Dulzura kangaroo rat

should remain viable in the Plan Area.

Approximately 146,632 acres (42

percent) of suitable Habitat for the

Dulzura kangaroo rat would be outside

the MSHCP Conservation Area.

None 8 General Management Measure 1.

long-tailed weasel

(Mustela frenata)

2 The long-tailed weasel occurs throughout the Plan Area

in virtually all types of Habitat, including agricultural and

disturbed areas. It may occur wherever there is sufficient

prey. However, the weasel population levels in the Plan

Area are unknown and additional study is needed to

identify possible Core Areas and basic life history

requirements of the species. Baseline study and

monitoring of weasels in the MSHCP Conservation Area,

therefore, will be key factors for Conservation of this

species.

Objective 1: Include within the MSHCP Conservation Area at least

474,500 acres (49 percent) of suitable Habitat in the

Plan Area. Conservation in the primary Core Habitat

Areas includes the Existing Core A (10,740 acres),

Existing Core B (71,490 acres contiguous with

Cleveland National Forest in Orange County),

Existing Core C (15,610 acres), Existing Core F

(8,360 acres), Existing Core G (4,490 acres),

Existing Core H (17,470 acres), Existing Core I

(9,610 acres contiguous with San Bernardino

National Forest in San Bernardino County), Existing

Core J (24,370 acres), Existing Core K (149,750

acres), Existing Core L (24,750 acres contiguous

with Cleveland National Forest in San Diego County),

Existing Core M (10,460 acres contiguous with

Cleveland National Forest in San Diego County),

Proposed Core 1 (7,470 acres), Proposed Core 2

(5,050 acres), Proposed Core 3 (24,920 acres),

Proposed Core 4 (11,890 acres), Proposed Core 5

Conservation for this species will be

achieved by inclusion of at least 474,500

acres (49 percent) of the suitable

Conserved Habitat and Conservation of

Linkages between large Habitat Areas.

Approximately 490,675 acres (51

percent) of suitable Habitat for the

long-tailed weasel will not be

conserved.

None 8 Reserve Managers will maintain (once every 8 years) the

continued use of long-tailed weasel at a minimum of 75 percent

of the localities in the MSHCP Conservation Area where the

species has been known to occur.

Page 99: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-99

(3,220 acres), Proposed Core 6 (4,290 acres), and

Proposed Core 7 (50,000 acres).

Objective 2: Include within MSHCP Conservation Area

approximately 52,400 acres of dispersal and/or

movement Linkages between Core Habitat blocks.

Given the mobility of the long-tailed weasel and its

use of drainages and agricultural areas, it potentially

could use all the identified unconstrained and

constrained Linkages in the MSHCP Conservation

Area.

Objective 3: Within the MSHCP Conservation Area, maintain

(once every 8 years) the continued use of long-tailed

weasel at a minimum of 75 percent of the localities

where the species has been known to occur.

Los Angeles pocket

mouse (Perognathus

longimembris brevinasus)

3 The Los Angeles pocket mouse generally is widely

distributed in the eastern two-thirds of the Plan Area, but

recent known localities are sparsely scattered throughout

this area. This species appears to be limited to sparsely

vegetated Habitat areas in patches of fine sandy soils

associated with washes or of aeolian (windblown ) origin,

such as dunes. The current status of populations in the

Plan Area is unknown, but some biologists believe that

the Los Angeles pocket mouse is in serious decline in the

region because it is seldom trapped and much of its

suitable Habitat has been lost to agriculture and urban

development. Conservation of sage scrub and grassland

Habitats on sandy soils, population monitoring and

adaptive management will be important for this species.

The Los Angeles pocket mouse is considered a Group 3

species because of its scattered distribution in the Plan

Area, association with specific micro-Habitats, a lack of

information about existing populations, and the need for

population monitoring and adaptive management.

The Los Angeles pocket mouse is on the Additional

Survey Needs and Procedures (Section 6.3.2) list and

surveys for the species will be conducted as part of the

project review process for public and private projects

within the mammal species survey area where suitable

Habitat is present (see Mammal Species Survey Area

Map, Figure 6-5 of the MSHCP, Volume I). Los Angeles

Objective 1: Include within the MSHCP Conservation Area, at

least 14,000 acres of suitable Habitat for the Los

Angeles pocket mouse (e.g., sandy to loamy-sand

soils occurring in non-native grassland, Riversidean

sage scrub, Riversidean alluvial fan sage scrub,

desert scrub, playa and vernal pool, chaparral, or

redshank chaparral Habitat), with at least 2,000

acres within each of seven (7) Core Areas within

the MSHCP Conservation Area. Based on existing

population distribution information, probable Core

Areas include the following: 1) San Jacinto Wildlife

Area-Lake Perris Reserve, 2) the Badlands, 3) San

Jacinto River and Bautista Creek, 4) Anza Valley, 5)

Lake Skinner-Domenigoni Reserve, 6) Potrero

Valley, and 7) Temecula Creek.

Objective 2: Include within the MSHCP Conservation Area at

least 10,000 acres of suitable Habitat for the Los

Angeles pocket mouse outside of the probable Core

Areas identified above, but within the Criteria Area.

Criteria Area locations where additional Habitat likely

will be conserved include the Santa Ana River

(northeast of Highway 60 and possibly in some

areas downstream), Wilson Creek, Vail Lake, Warm

Springs Creek, San Timoteo Creek, and San

Gorgonio Wash.

Conservation of the Los Angeles pocket

mouse will be achieved by inclusion of

approximately 32,581 acres (62 percent)

of suitable Conserved Habitat in the

MSHCP Conservation Area. Although the

size and extent of existing populations of

the Los Angeles pocket mouse in the Plan

Area is unknown, based on distribution

records, the probable key population areas

are reasonably well understood. Several

of these key areas would be in the MSHCP

Conservation Area, including San Jacinto

Wildlife Area-Lake Perris, Lake

Skinner-Diamond Valley Lake, Potrero

Valley, and Silverado Ranch Conservation

Bank in the Anza Valley. Additional

important known Habitat areas that would

be conserved include the San Jacinto

River in the Hemet-Valle Vista area and

San Jacinto Wildlife Area, Bautista Creek,

Temecula Creek between Aguanga and

Vail Lake, portions of the Badlands, and

Reche Canyon. With perhaps the

exception of populations in the

Temecula-Murrieta area, it seems unlikely

that additional key populations would not

be conserved. Most of the areas outside

The Incidental Take of the Los Angeles

pocket mouse is difficult to quantify for

the following reasons: 1) their use of

burrows for diurnal resting sites; 2)

finding a dead or impaired specimen is

unlikely; 3) losses may be masked by

seasonal or annual fluctuations in

numbers; and 4) limited knowledge of

its distribution within the Plan Area.

However, the maximum level of Take

of the Los Angeles pocket mouse

could be anticipated by the loss of the

number of acres of Habitat that will

become unsuitable for this species.

Approximately 19,508 acres (37

percent) of suitable Habitat is outside

the MSHCP Conservation Area.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures).

1 to 8 Reserve Managers will ensure that each of the 7 Core Areas

shall support a stable or increasing population that occupies at

least 30 percent of the suitable Habitat (at least 4,200 acres) as

measured over any 8-consecutive year period (i.e., the

approximate length of the weather cycle). Particular

management emphasis will be given to flood control, farming,

mining, and invasive non-native plant species.

Page 100: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-100

pocket mouse localities found as a result of survey efforts

shall be conserved in accordance with the procedures

described within Section 6.3.2, MSHCP, Volume 1.

Objective 3: Surveys for Los Angeles pocket mouse will be

conducted as part of the project review process for

public and private projects within the mammal

species survey area where suitable Habitat is

present (see Mammal Species Survey Area Map,

Figure 6-5 of the MSHCP, Volume I). Los Angeles

pocket mice located as a result of survey efforts

shall be conserved in accordance with the

procedures described in Section 6.3.2 of the

MSHCP, Volume 1.

Survey and site-specific Conservation efforts will

continue until there is a minimum of seven Core

Areas with at least 2,000 acres of suitable Habitat

within each core area, for a total of 14,000 acres of

suitable Habitat.

Objective 4: Within the MSHCP Conservation Area, Reserve

Managers shall demonstrate that each of the seven

Core Areas supports a stable or increasing

population that occupies at least 30 percent of the

suitable Habitat (at least 4,200 acres) as measured

over any 8-consecutive year period (i.e., the

approximate length of the weather cycle).

of the MSHCP Conservation Area that

potentially support pocket mouse

populations or suitable Habitat tend to be

already fragmented and would have poor

suitability for long-term Conservation.

mountain lion

(Puma concolor)

2 The mountain lion is known from the Santa Ana

Mountains, San Bernardino Mountains, San Jacinto

Mountains, Santa Rosa Mountains and brushy foothills

and riparian areas that may serve as Habitat connections

between core mountainous areas. The mountain lion also

has been seen in the 1990s in "lowland" areas such as

Lake Mathews-Estelle Mountain, Lake Skinner-Diamond

Valley Lake, the Badlands and the San Jacinto Wildlife

Area. Maintaining this species throughout the Plan Area

will require Conservation of specific core and Linkage

Habitats and implementation of specific monitoring and

management actions. This species requires large

expanses of relatively undisturbed brushy and rocky

Habitats where its main prey--the mule deer--also occurs.

In addition to needing large Habitat blocks, a key factor for

Conservation of the mountain lion in the Plan Area is the

provision of adequate dispersal and movement Habitat,

especially at potential bottleneck areas. Wildlife crossings

of major roadways will need to be designed to

Objective 1: Include within the MSHCP Conservation Area

319,843 acres (71 percent) of suitable Habitat in the

Plan Area. The majority of Habitat Conservation will

occur in large blocks throughout the Plan Area,

including the Santa Rosa Plateau-Santa Ana

Mountains (79,850 acres), Agua Tibia

Wilderness-Palomar Mountains (35,210 acres),

Badlands-San Jacinto Mountains-Santa Rosa

Mountains (174,670 acres), and San Bernardino

Mountains (9,610 acres). Additional areas likely to

be used by the mountain lion include Lake

Mathews-Estelle Mountain (31,200 acres), Lake

Skinner-Diamond Valley Lake (27,600 acres), and

Vail Lake-Sage-Wilson Valley (61,900 acres).

Objective 2: Include within the MSHCP Conservation Area Habitat

Linkages and movement corridors between large

Habitat blocks that allow dispersal and movement of

mountain lions throughout the Plan Area and to

Conservation for the mountain lion will be

achieved by inclusion of at least 320,000

acres (71 percent) of the suitable

Conserved Habitat and Conservation of

Linkages between large Habitat areas.

Implementation of the MSHCP would

provide large Habitat blocks and ensure

that movement areas are adequate to

support the life history needs of the

mountain lion, including foraging,

reproduction, and dispersal activities. The

main Habitat areas for mountain lions in

the MSHCP Conservation Area include the

Santa Rosa Plateau-Santa Ana Mountains,

Agua Tibia Wi lderness-Palomar

Mountains, Badlands-San Jacinto

Mountains-Santa Rosa Mountains, and

San Bernardino Mountains. Additional

MSHCP Conservation Areas likely to be

About 132,000 acres (29 percent) of

suitable Habitat would be outside the

MSHCP Conservation Area and

individuals within these areas will be

subject to Incidental Take consistent

with the Plan. Of this, approximately

52,000 acres (11 percent) are in

Rural/ Mountainous designation areas.

The Habitat outside of the MSHCP

Conservation Area tends to be in areas

that currently are more fragmented by

urban and agricultural development,

and thus, less suitable for

Conservation of the mountain lion.

None 8 Reserve Managers will maintain or improve functionality of

dispersal routes. Reserve Managers will evaluate existing

undercrossings in key areas for their adequacy and will improve

as necessary to convey mountain lions. Key crossings that will

be evaluated include, but are not limited to, the following: the

crossing of State Highway 91 that connects the Santa Ana

Mountains with the Chino Hills via Fresno Canyon-Green River,

the crossings of Interstate 15 that connect the Santa Ana

Mountains with Lake Mathews-Estelle Mountain via Indian

Canyon and Horsethief Canyon, the crossing(s) of Interstate 15

that connect the Santa Ana Mountains with the Agua Tibia

Wilderness-Palomar Mountains via Pechanga Creek or the

possible "Rainbow" overpass, and undercrossings of State

Highway 60 in the Badlands.

Page 101: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-101

accommodate mountain lions. areas outside of the Plan Area. Conserved Habitat

connections and corridors will include the following:

! Santa Ana Mountains to Chino Hills via Fresno

Canyon-Green River

! Santa Ana Mountains to Lake Mathews-Estelle

Mountain via Indian Canyon and Horsethief

Canyon

! Santa Ana Mountains to Agua Tibia

Wilderness-Palomar Mountains via Pechanga

Creek or future wildlife overpass over I-15 north

of Rainbow (possibly in San Diego County)

! Lake Skinner-Diamond Valley Lake to

Sage-Wilson Valley-San Jacinto Mountains via

Tucalota Creek and adjacent uplands in the

MSHCP Conservation Area

! Badlands to San Jacinto Mountains and Santa

Rosa Mountains

! San Jacinto Mountains to San Bernardino

Mountains via San Gorgonio Wash

Objective 3: Within the MSHCP Conservation Area, maintain or

improve functionality of dispersal routes. Existing

undercrossings in key areas will be evaluated for

their adequacy to convey mountain lions. Key

crossings that will be evaluated include, but are not

limited to, the following:

! The crossing of State Highway 91 that connects

the Santa Ana Mountains with the Chino Hills

via Fresno Canyon-Green River.

! The crossings of Interstate 15 that connect the

Santa Ana Moun ta ins wi th Lake

Mathews-Estelle Mountain via Indian Canyon

and Horsethief Canyon.

! The crossing(s) of Interstate 15 that connect

the Santa Ana Mountains with the Agua Tibia

Wilderness-Palomar Mountains via Pechanga

Creek or the possible "Rainbow" overpass.

! Undercrossings of State Highway 60 in the

Badlands.

used by the mountain lion include Lake

Mathews-Estelle Mountain, Lake

Skinner-Diamond Valley Lake, and Vail

Lake-Sage-Wilson Valley.

Page 102: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-102

northwestern San Diego

pocket mouse

(Chaetodipus fallax fallax)

1 The northwestern San Diego pocket mouse occurs

throughout the Plan Area in coastal sage scrub (including

Diegan and Riversidean upland sage scrubs and alluvial

fan sage scrub), sage scrub/grassland ecotones,

chaparral, and desert scrubs at all elevations up to 6,000

feet. This species is considered to be fairly common in

suitable Habitat. No specific management regimes are

needed to maintain an adequate amount of Habitat for this

species, although management of Habitat for species

such as the Stephens' kangaroo rat, San Bernardino

kangaroo rat, Los Angeles pocket mouse and California

gnatcatcher may benefit the northwestern San Diego

pocket mouse.

Objective 1: Include within the MSHCP Conservation Area

407,645 acres (56 percent) of suitable Habitat in the

Plan Area. Conservation in the primary Core Habitat

areas includes Existing Core C (15,610 acres),

Existing Core G (4,490 acres), Existing Core H

(17,470 acres), Existing Core F (8,360 acres),

Existing Core I (9,610 acres), Existing Core J

(24,370 acres), Existing Core M (10,460 acres),

Proposed Extended Existing Core 2 (8,100 acres),

Proposed Extension of Existing Core 6 (1,180

acres), Proposed Extension of Existing Core 7

(3,220 acres), Proposed Core 1 (7,470 acres),

Proposed Core 2 (5,050 acres), Proposed Core 3

(24,920 acres), Proposed Core 4 (11,890 acres),

Proposed Core 5 (3,220 acres), and Proposed Core

7 (50,000 acres).

Objective 2: Include within the MSHCP Conservation Area

approximately 18,000 acres of suitable dispersal

and/or movement Linkages between Habitat blocks,

including contiguous uplands from Estelle Mountain

to Wildomar, Gavilan Hills, San Jacinto River, Kolb

Creek/Arroyo Seco, Temecula Creek, Tucalota

Creek, Wilson Creek, Tule Creek, and San Gorgonio

Wash.

The MSHCP Conservation Area will

include at least 407,645 acres (56

percent) of suitable Habitat. Much of this

Habitat will be in large Core Areas and

Habitat Linkages that are suitable for

occupation by the San Diego pocket

mouse in four major Habitat complexes:

the Santa Ana Mountain Foothills - Santa

Rosa Plateau complex, the Lake

Mathews/Estelle Mountain - Steele Peak -

Kabian Park-Sedco Hills complex, the

Badlands-San Jacinto Mounta in

Foothills-Agua Tibia Wilderness complex,

and the Banning Bench complex.

Populations of the pocket mouse should

remain viable in these four areas.

Approximately 323,457 acres (44

percent) of suitable Habitat for the

northwestern San Diego pocket mouse

would be outside the MSHCP

Conservation Area.

None 8 General Management Measure 1.

San Bernardino flying

squirrel

(Glaucomys sabrinus

californicus)

3 Habitat for the San Bernardino flying squirrel in the Plan

Area only occurs in the San Jacinto Mountains, primarily

on U.S. Forest Service (USFS) lands in the San

Bernardino National Forest (SBNF) and the Mt. San

Jacinto Wilderness State Park. Suitable Habitat also is

present on private inholdings within the SBNF in the San

Jacinto Mountains. The status (e.g., abundance,

distribution, reproduction) of this species is not well

understood within the Plan Area. Therefore, Habitat

assessments, population baseline information, long-term

monitoring studies, and adaptive management are

necessary. The San Bernardino flying squirrel is a Group

3 species because it has a narrow distribution in the Plan

Area and requires site specific monitoring.

Objective 1: Include within the MSHCP Conservation Area at least

19,476 acres (67 percent) of suitable montane

coniferous forest and deciduous woodland and

forest Habitats within the San Jacinto Mountains

Bioregion for breeding, foraging, wintering, and

dispersal movement.

Objective 2: Within the MSHCP Conservation Area, confirm

occupation of 1000 ha (2470 acres) with a mean

density of at least 2 individuals per hectare (2

individuals per 2.47 acres) in the San Jacinto

mountains; and in the San Bernardino Mountains

confirm occupation of 100 ha.

Conservation of the San Bernardino flying

squirrel will be achieved by inclusion of

approximately 19,476 acres (67 percent)

of suitable Conserved Habitat in the San

Jacinto Mountains Bioregion of the

MSHCP Conservation Area.

About 9,404 acres (33 percent) of

suitable Habitat in the San Jacinto

Mountains Bioregion is on private

ownerships outside of the MSHCP

Conservation Area. This suitable

Habitat is on private lands in the areas

of Pine Cove, Idyllwild, Mountain

Center, Hemet Lake and various other

private inholdings within the forest.

Any proposed Incidental Take of

Habitat on USFS or State Park lands

would be consistent with approved

activities for those lands.

None 8 Within the MSHCP Conservation Area, confirm occupation of

1,000 ha (2,470 acres) with a mean density of at least 2

individuals per hectare (2 individuals per 2.47 acres) in the San

Jacinto Mountains; and in the San Bernardino Mountains confirm

occupation of 100 ha.

Page 103: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-103

Conservation of the San Bernardino flying squirrel in the

San Jacinto Mountains is largely dependent on activities

on Forest Service lands, but activities in the State Park

and private ownerships within the SBNF also will be

important to Conservation of the species. As a Forest

Service Sensitive Species, the flying squirrel is protected

through implementation of Forest plans and the biological

evaluation (BE) process, which assesses the potential

effects of Forest Service activities on the species.

Due to absence of information regarding abundance,

distance and life history requirements, Incidental Take of

this species is not included in this permit until

Conservation of the species in the Plan Area has been

demonstrated by achieving Objective 2.

San Bernardino kangaroo

rat

(Dipodomys merriami

parvus )

3 The San Bernardino kangaroo rat has a narrow

distribution within the Plan Area, being primarily restricted

to 1) the San Jacinto River from about Highway 79 (Lamb

Canyon Road/Sanderson Avenue) in the north to the

boundary with Forest Service land to the east, and 2)

Bautista Creek from about Bautista Dam to the north and

the Hixon Flat trailhead to the south. The precise status

of smaller remnant populations in Reche Canyon and the

northern portion of the Jurupa Mountains in the

Bloomington area is unknown, but the persistence of

remaining occurrences in these areas is likely tenuous

given the rate of ongoing Habitat destruction and

fragmentation. The San Bernardino kangaroo rat typically

is found in Riversidean alluvial fan sage scrub, but may

occur at lower densities in Riversidean upland sage

scrub, chaparral and grassland in uplands and tributaries

in proximity to Riversidean alluvial fan sage scrub

Habitats. Conservation of Riversidean alluvial fan and

upland sage scrub in the San Jacinto River and Bautista

Creek is essential for Conservation of this species in the

Plan Area. Monitoring and adaptive management to

maintain and enhance Habitat in these areas also will be

important for this species because of the small amount of

Objective 1: Include within the MSHCP Conservation Area 4,440

acres of occupied or suitable Habitat within the

historic flood plains of the San Jacinto River and

Bautista Creek and their tributaries.

Objective 2: Surveys for San Bernardino kangaroo rat will be

conducted as part of the project review process for

public and private projects within the mammal

species survey area where suitable Habitat is

present (see Mammal Species Survey Area Map,

Figure 6-5 of the MSHCP, Volume I). San

Bernardino kangaroo rats located as a result of

survey efforts shall be conserved in accordance

with the procedures described within Section 6.3.2

of the MSHCP, Volume 1.

Objective 3: Within the 4,440 acres of suitable Habitat in the

MSHCP Conservation Area, ensure that at least 75

percent of the total (3,330 acres) is occupied and

that at least 20 percent of the occupied Habitat

(approximately 666 acres) supports a medium or

higher population density (> 5 to 15 individuals per

hectare; McKernan 1997) of the species as

Conservation of the San Bernardino

kangaroo rat will be achieved by inclusion

of approximately 3,748 acres (68 percent)

of suitable Conserved Habitat in the

MSHCP Conservation Area. Virtually 100

percent of the known and high potential

San Bernardino kangaroo rat occupied

Habitat in the San Jacinto River and

Bautista Creek is within the MSHCP

Conservation Area.

The Incidental Take of the San

Bernardino kangaroo rat is difficult to

quantify for the following reasons: 1)

their use of burrows for diurnal resting

sites; 2) finding a dead or impaired

specimen is unlikely; and 3) losses

may be masked by seasonal or annual

fluctuations in numbers. For these

reasons, the level of Take of the San

Bernardino kangaroo rat is typically

estimated as the amount of permanent

and/or temporary disturbance to its

Habitat. Based on existing

information, no known and relatively

little high potential San Bernardino

kangaroo rat Habitat is outside the

MSHCP Conservation Area. However,

approximately 1,785 acres (32

percent) of suitable Habitat is outside

the MSHCP Conservation Area. This

suitable Habitat, which may be subject

to Incidental Take, is in areas where

the status of the species is unknown.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 Within the 4,440 acres of occupied and suitable Habitat in the

MSHCP Conservation Area, Reserve Managers will ensure that

at least 75 percent of the total (3,330 acres) is occupied and that

at least 20 percent of the occupied Habitat (approximately 666

acres) supports a medium or higher population density (>5 to

15 individuals per hectare; based on McKernan 1997 studies of

the San Bernardino kangaroo rat) of the species as measured

across any 8-year period (i.e., the approximate length of the

weather cycle). Reserve Managers will maintain or, if feasible,

restore ecological processes within the historic flood plains of

the San Jacinto River and Bautista Creek, their tributaries, and

other localities within the Criteria Area where the San Bernardino

kangaroo rat is detected in the future, given existing constraints

and activities covered under the Plan. Maintenance or, if

feasible, restoration of ecological processes shall include 1)

allowing for natural dynamic fluvial processes of flooding,

scouring and Habitat regeneration, and possibly fire, to maintain

healthy alluvial sage scrub Habitat, 2) careful planning and

design of existing and future authorized uses that may affect

natural processes such as flood control, water Conservation,

and sand and gravel mining, 3) control of other uses and

disturbances such as farming and discing for weed abatement,

heavy grazing, off-road vehicles, and vandalism, and 4) control

Page 104: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-104

remaining Habitat. The San Bernardino kangaroo rat is a

Group 3 species because of its narrow distribution in the

Plan Area and the need for population monitoring and

adaptive management.

The San Bernardino kangaroo rat is on the Additional

Survey Needs and Procedures (Section 6.3.2) list and

surveys for the species will be conducted as part of the

project review process for public and private projects

within the mammal species survey area where suitable

Habitat is present (see Mammal Species Survey Area

Map, Figure 6-5 of the MSHCP, Volume I). San

Bernardino kangaroo rat localities found as a result of

survey efforts shall be conserved in accordance with the

procedures described within Section 6.3.2, MSHCP,

Volume I.

measured across any 8-year period (i.e., the

approximate length of the weather cycle).

Objective 4: Within the MSHCP Conservation Area, Reserve

Managers shall maintain or, if feasible, restore

ecological processes within the historic flood plains

of the San Jacinto River and Bautista Creek, their

tributaries, and other locations within the Criteria

Area where the San Bernardino kangaroo rat is

detected in the future, given existing constraints

and activities covered under the Plan. Maintenance

and/or restoration of ecological processes may

include: 1) allowing for natural dynamic fluvial

processes of flooding, scouring and Habitat

regeneration, and possibly fire, to maintain healthy

alluvial fan sage scrub Habitat, 2) careful planning

and design of existing and future authorized uses

that may affect natural processes such as flood

control, water Conservation, and sand and gravel

mining, 3) control of other uses and disturbances

such as farming and discing for weed abatement,

heavy grazing, off-road vehicles, and vandalism,

and 4) control of invasive exotic species.

Surveys will be conducted in these

areas in accordance with the

procedures described within Section

6.3.2 of the MSHCP, Volume 1.

of invasive exotic species and domestic animals.

San Diego black-tailed

jackrabbit

(Lepus californicus

bennettii)

1 The San Diego black-tailed jackrabbit occurs throughout

the Plan Area in open Habitats, primarily including

grasslands, Riversidean sage scrub, Riversidean alluvial

fan sage scrub, Great Basin sagebrush, desert scrub, and

juniper and oak woodlands. Although widespread in the

Plan Area, the jackrabbit can be characterized as ranging

from relatively uncommon to locally common. Identifying

Core Areas is difficult because this species exhibits

natural fluctuations in population sizes and distributions

in relation to reproduction and shifting distributions and

densities of food resources. With a large enough MSHCP

Conservation Area however, specific management

regimes will not be necessary for this species because it

occurs in a variety of Habitats ranging from undisturbed

to highly disturbed.

Objective 1: Include within the MSHCP Conservation Area

142,116 acres (44 percent) of suitable Habitat in

the Plan Area comprised of grassland, coastal sage

scrub, Riversidean alluvial fan sage scrub, desert

scrub, juniper woodland and scrub, and playas and

vernal pools. Conservation in the primary Core

Habitat Areas includes Existing Core A (10,740

acres), Existing Core C (15,610 acres), Existing

Core D (2,510 acres), Existing Core G (4,490

acres), Existing Core H (17,470 acres), Existing

Core F (8,360 acres), Existing Core J (24,370

acres), Proposed Extension of Existing Core 2

(8,100 acres), Proposed Extension of Existing Core

6 (1,180 acres), Proposed Extension of Existing

Core 7 (3,220 acres), Proposed Core 1 (7,470

acres), Proposed Core 2 (5,050 acres), Proposed

Conservation of the San Diego black-tailed

jackrabbit will be achieved by inclusion of

approximately 142,116 acres (44 percent)

of suitable Conserved Habitat in the

MSHCP Conservation Area. The MSCHP

Conservation Area includes large Habitat

areas and adequate Habitat Linkages that

will allow for the natural fluctuations in

population densities and distribution of the

jackrabbit, including the Santa Rosa

Plateau, Lake Skinner-Diamond Valley

Lake, Vail Lake-Sage-Wilson Valley, the

Badlands-San Jacinto River, Lakeview

Mountains, Sedco Hills-Kabian Park, and

Anza-Cahuilla valleys.

Approximately 183,412 acres (56

percent) of suitable Habitat for the

jackrabbit would be outside the

MSHCP Conservation Area.

None 8 General Management Measure 1.

Page 105: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-105

Core 3 (24,920 acres), Proposed Core 4 (11,890

acres), Proposed Core 5 (3,220 acres), Proposed

Core 6 (4,290 acres), Proposed Core 7 (50,000

acres), Non-contiguous Habitat Block 2 (1,230

acres), and Non-contiguous Habitat Block 5 (7,150

acres).

Objective 2: Include within the MSHCP Conservation Area

approximately 27,700 acres of Habitat Linkages

between Core Areas, including contiguous uplands

from Estelle Mountain to Wildomar, Temescal

Wash, Gavilan Hills, San Jacinto River from the

National Forest to Canyon Lake, Santa Ana River,

Murrieta Creek, Temecula Creek, Tucalota Creek,

Wilson Creek, Tule Creek, San Timoteo Creek, and

San Gorgonio Wash.

San Diego desert woodrat

(Neotoma lepida

intermedia)

1 The San Diego desert woodrat is found throughout the

Plan Area in sage scrub and chaparral wherever there are

rock outcrops, boulders, cactus patches and dense

undergrowth. The largest contiguous populations

probably are in Lake Mathews-Estelle Mountain, Kabian

area, the Badlands, San Jacinto Wildlife Area-Lake Perris,

Lake Skinner-Diamond Valley Lake, Vail Lake-Sage, and

on the Santa Rosa Plateau. As long as adequate

microHabitats are conserved, this species will remain

viable in the Plan Area. No specific management regimes

are anticipated for maintaining an adequate amount of

Habitat for this species.

Objective 1: Include within the MSHCP Conservation Area

364,828 acres (62 percent) of suitable Habitat in

the Plan Area comprised of chaparral, coastal sage

scrub, Riversidean alluvial fan sage scrub, desert

scrub, and juniper woodland and scrub.

Conservation in the primary Core Habitat Areas

includes Existing Core C (15,610 acres), Existing

Core G (4,490 acres), Existing Core H (17,470

acres), Existing Core F (8,360 acres), Existing Core

J (24,370 acres), Proposed Extension of Existing

Core 2 (8,100 acres), Proposed Extension of

Existing Core 6 (1,180 acres), Proposed Extension

of Existing Core 7 (3,220 acres), Proposed Core 1

(7,470 acres), Proposed Core 2 (5,050 acres),

Proposed Core 3 (24,920 acres), Proposed Core 4

(11,890 acres), Proposed Core 5 (3,220 acres),

Proposed Core 6 (4,290 acres), Proposed Core 7

(50,000 acres), and Non-contiguous Habitat Block

5 (7,150 acres).

Conservation for the San Diego desert

woodrat will be achieved by inclusion of at

least 364,828 acres (62 percent) of

suitable Conserved Habitat in the MSHCP

Conservation Area. Included in the

MSHCP Conservation Area are large

Habitat blocks and Linkages that are

suitable for occupation by the San Diego

desert woodrat in the four major Habitat

complexes : the Santa Ana Mountain

Foothills-Santa Rosa Plateau complex, the

Lake Mathews-Estelle Mountain-Steele

Peak-Kabian Park-Sedco Hills complex,

the Badlands-San Jacinto Mountain

Foothills-Agua Tibia Wilderness complex,

and the Banning Bench complex (see

summary of Core Areas in Objective 1).

Populations of the desert woodrat should

remain viable in these four areas.

Approximately 218,955 acres (38

percent) of suitable Habitat for the

desert woodrat would be outside the

MSHCP Conservation Area.

None 8 General Management Measure 1.

Stephens’ kangaroo rat

(Dipodomys stephensi)

2 The Stephens' kangaroo rat is relatively widespread

throughout the Plan Area, but the main blocks of occupied

Habitat are concentrated in several Core Areas that must

be conserved. The Stephens' kangaroo rat also requires

Objective 1: Include within the MSHCP Conservation Area a

minimum of 15,000 acres of occupied Habitat (as

defined in the Habitat Conservation Plan for the

Stephens' Kangaroo Rat in Western Riverside

The total estimated Conservation of

occupied and suitable Habitat in the

MSHCP Conserv at ion Area is

approximately 22,400 acres. Approval

Within the existing Stephens' kangaroo

rat HCP area it was estimated that

approximately 15,000 acres of the

estimated 30,000 acres would be

None 1 to 8 Within the minimum 15,000 acres of occupied Habitat in the

MSHCP Conservation Area, maintain at least 30 percent of the

occupied Habitat (approximately 4,500 acres) at a population

density of medium or higher (i.e., at least 5-10 individuals per

Page 106: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-106

species-specific monitoring and management to ensure

its long-term viability in the Plan Area, including tracking

population densities and maintaining sparse, open

grassland Habitats.

The Long term SKR HCP provides Take Authorization for

SKR within its boundaries. The MSHCP will provide Take

Authorization for SKR outside the boundaries of the SKR

HCP, but within the Plan Area boundaries. As set forth in

Section 16.2 of the Implementing Agreement (Section 5.0

of the MSHCP, Volume I), the core reserves established

by the SKR HCP will be managed as part of the MSHCP

Conservation Area consistent with the SKR HCP.

County, March 1996), as measured across any

consecutive 8-year period (i.e., the approximate

length of the weather cycle), in a minimum of six

Core Areas within the existing boundary of the

Habitat Conservation Plan for the Stephens'

Kangaroo Rat in Western Riverside County. This

objective is consistent with the requirements of the

Stephens' kangaroo rat HCP. Core Areas, as

identified in the HCP, include Lake Mathews-Estelle

Mountain, Motte-Rimrock Reserve, Lake

Skinner-Domenigoni Valley, San Jacinto Wildlife

Area-Lake Perris, Sycamore Canyon-March Air

Force (Reserve) Base, Steele Peak, and Potrero

ACEC.

Objective 2: Include within the MSHCP Conservation Area at

least 3,000 acres of occupied Habitat, as

measured across any consecutive 8-year period,

in a minimum of two Core Areas outside the

existing boundary of the Habitat Conservation Plan

for the Stephens' Kangaroo Rat in Western

Riverside County. One of the Core Areas will be

the Potrero Valley area (as distinct from the

Potrero ACEC Core Areas listed in Objective 1) and

the other will be in the Anza and Cahuilla valleys.

Objective 3: Within the minimum 15,000 acres of occupied

Habitat in the MSHCP Conservation Area, maintain

at least 30 percent of the occupied Habitat

(approximately 4,500 acres) at a population

density of medium or higher (i.e., at least 5-10

individuals per hectare; O'Farrell and Uptain 1989)

across all Core Areas. No single Core Area will

account for more than 30 percent of the total

medium (or higher) population density area.

and implementation of the Stephens'

kangaroo rat HCP in 1996 was based on

the determination that the HCP would

conserve the kangaroo rat within the

Western Riverside County area covered by

the Plan. Expansion of the MSHCP

Conservation Area under the MSHCP

would increase the amount of Conserved

Habitat by at least 3,200 acres in the two

new Core Areas and by several thousand

acres in smaller scattered patches

throughout the MSHCP Conservation Area.

taken over the 30-year life of the

permit (RCHCA 1996). However, this

assumption was conservative relative

to the MSHCP because it did not take

into consideration several factors,

including:

• inherent protection of occupied

Habitat on other public lands

outside of Core Areas, on

undevelopable lands, and lands

occupied by other listed species;

• occupied Habitat on lands used

for dryland farming that are likely

to remain in the HCP area; and

• additional Conservation through

the multispecies planning effort.

Within the broader scope of the

MSHCP, compared to the Stephens'

kangaroo rat HCP area, estimating

Take of occupied Stephens' kangaroo

rat Habitat outside of the MSHCP

Conservation Area is difficult because

current mapping of occupied Habitat

generally is not available. Based on

existing data for known occupied and

p o t e n t i a l / p r o ba b l e H a b i t a t ,

approximately 12,940 acres are

outside of the MSHCP Conservation

Area and individuals within these

areas will be subject to Incidental Take

consistent with the Plan. However, it

is highly unlikely that any given project

would impact more than a few 10s to

a few hundred acres at a time. In the

recent past, one of the largest Takes

of occupied Habitat outside the

existing Stephens' kangaroo rat HCP

Plan Area was about 135 acres of

occupied Habitat in the Norco Hills,

hectare; O'Farrell and Uptain 1989) across all Core Areas. No

single Core Area will account for more than 30 percent of the

total medium (or higher) population density area.

Page 107: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-107

but this area comprised much of what

remained in the vicinity that probably

supported 1,000+ acres as recently

as 1989. Small projects in some of

the non-Core Areas listed above may

result in smaller impacts that may

cumulatively total several hundred to a

few thousand acres in the foreseeable

future. Other areas outside of the

MSHCP Conservation Area and Rural/

Mountainous areas where some Take

is likely to occur in the future include

east Riverside (e.g., Alessandro Hills),

Moreno Valley, Woodcrest, Mead

Valley, Perris, Sun City, Norco Hills,

Wildomar, Menifee, Murrieta,

Temecula, Hemet, San Jacinto, and

Banning/ Beaumont. Under the

Rural/Mountainous designation, areas

where previously the risk to occupied

Habitat potentially would have been

high, the amount of Take also will be

substantially lower.

PLANTS

beautiful hulsea

(Hulsea vestita ssp.

callicarpha)

2 Beautiful hulsea is designated as a Group 2 species

because of its restriction to the Agua Tibia and San

Jacinto Mountains and San Jacinto Foothills Bioregions,

primarily within USFS lands. Within the Plan Area,

beautiful hulsea is restricted to chaparral and lower

montane coniferous forests at elevations of 915 m to

3,050 m within the Agua Tibia and San Jacinto Mountains

and San Jacinto Foothills Bioregions. This perennial plant

grows on granitic soils, rock or gravelly soils in chaparral

and in open areas of montane conifer forest.

The University of California, Riverside, (UCR) GIS

database and the Rancho Santa Ana Botanic Gardens,

Pomona and UCR herbaria include 44 records at 32

locations, 25 of which are located on Forest Service

lands. However, 34 of the 44 records are dated 1970 or

earlier. Based on these records, beautiful hulsea occurs

Objective 1: Include within the MSHCP Conservation Area at

least 106,440 acres of suitable Habitat (chaparral

and montane coniferous forest between 915 and

3,050 m in the Agua Tibia and San Jacinto

Mountains and Foothills Bioregions).

Objective 2: Include within the MSHCP Conservation Area at

least 12 of the known occurrences at Lake Fulmor,

Pine Cove, Idyllwild, Mountain Center, Pine

Meadow and Lake Hemet.

Objective 3: Within the MSHCP Conservation Area, confirm 16

localities (locality in this sense is not smaller than

one quarter section) with no fewer than 50

individuals each (unless a smaller population has

been demonstrated to be self-sustaining).

Conservation for this species will be

achieved by inclusion of at least 106,440

acres of suitable Conserved Habitat and

25 known localities within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring.

Approximately 36,060 acres (25

percent) of potential Habitat for

beautiful hulsea will not be conserved.

According to the UCR database and

herbarium records, 19 of the mapped

locations are located on private lands

and will not be conserved. Of these

19 mapped locations, however, 18 are

dated 1970 or earlier.

None 8 Reserve Managers will avoid or minimize adverse effects to

existing and new locations of beautiful hulsea populations to the

maximum extent practicable.

Page 108: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-108

in the vicinity of Lake Fulmor, Pine Cove, Idyllwild,

Mountain Center, Pine Meadow and Hemet Lake in the

San Jacinto Mountains; and on Cahuilla Mountain. Reiser

(1996) reports this species from North Mountain, east of

Hemet, along the summit fire road. CNDDB does not

contain any occurrence data for this species.

The beautiful hulsea is restricted to the western slopes of

the San Jacinto Mountains and the northern slopes of the

Agua Tibia Mountains and the MSHCP Conservation Area

configuration is expected to provide long-term

Conservation of the species. However, because the

majority of the existing records are dated prior to 1970,

Incidental Take of this species is not included in this

permit until Conservation of the species in the Plan Area

has been demonstrated by reaching Objective 3.

Brand’s phacelia

(Phacelia stellaris)

3 Brand's phacelia is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements, and management

requirements for flood plain processes. There are only

two known occurrences within the Plan Area. This

species was collected at Fairmont Park in 1925 and was

recently observed in the Santa Ana Wilderness Area. This

species appears to be restricted to sandy benches along

the Santa Ana River.

This is a species on the Narrow Endemic Plant List

(Section 6.1.3) and surveys for Brand's phacelia will be

conducted as part of the project review process for public

and private projects within the Narrow Endemic Plant

Species survey area where suitable Habitat is present

(see Narrow Endemic Plant Species Survey Area Map,

Figure 6-1 of the MSHCP, Volume I). Brand's phacelia

located as a result of survey efforts shall be conserved in

accordance with procedures described within Section

6.1.3, MSHCP, Volume I.

Objective 1: Include within the MSHCP Conservation Area at

least 6,100 acres of suitable Habitat (meadows/

marshes and playa/vernal pools between 0 and

500 m within the Riverside Lowlands Bioregion).

Objective 2: Include within the MSHCP Conservation Area at

least the two known localities (one historic and one

extant) of this species along the Santa Ana River at

Fairmont Park and in the Santa Ana Wilderness

Area.

Objective 3: Surveys for Brand's phacelia will be conducted as

part of the project review process for public and

private projects within the Narrow Endemic Plant

Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species

Survey Area Map, Figure 6-1 of the MSHCP,

Volume I). Brand's phacelia located as a result of

survey efforts shall be conserved in accordance

with procedures described within Section 6.1.3,

MSHCP, Volume I.

Conservation for this species will be

achieved by inclusion of at least 6,100

acres of suitable Conserved Habitat and

two known occurrences along the Santa

Ana River (one historic occurrence at

Fairmont Park and one extant occurrence

along a horse trail in the Santa Ana

Wilderness Area along the Santa Ana

River) in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring.

Approximately 11,800 acres of

potential Habitat for Brand's phacelia

would not be included in the MSHCP

Conservation Area. Neither the

historic location nor the one extant

location would be located outside the

MSHCP Conservation Area.

Yes, see Section

6.1.3 (Protection

o f N a r r o w

Endemic Plant

Species).

8 Reserve Managers will manage this species for off-road vehicle

use and trampling.

Page 109: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-109

California beardtongue

(Penstemon californicus)

2 California beardtongue is designated as a Group 2

species because it is restricted to the Desert Transition,

San Jacinto Foothills, San Jacinto Mountains, and Santa

Ana Mountains, primarily within USFS lands. Within the

Plan Area, California beardtongue is restricted to

chaparral, coniferous forest, and pinyon-juniper woodland

Habitats at elevations of 1,000 m to 2,100 m within the

Desert Transition, San Jacinto Foothills, San Jacinto

Mountains, and Santa Ana Mountains Bioregions.

Specifically, the plant occurs on rocky or clay soils, in

openings within chaparral adjacent to meadow Habitat,

openings within chaparral on ridgetops and in the ecotone

between chaparral and lower montane coniferous forest.

The University of California, Riverside (UCR), GIS

database has seven occurrences for this species, the

UCR herbarium has two records for this species and the

California Natural Diversity Database (CNNDB) has nine

mapped occurrences within the San Jacinto Mountains,

including Garner Valley, Pyramid Peak, Kenworthy Ranger

Station and Blackburn Canyon; and two outlier locations:

Cactus Valley and north of Sage.

California beardtongue is designated as a Forest Service

Sensitive Species. Forest Service Sensitive Plants are

protected through the implementation of Forest plans and

the biological evaluation (BE) process, which considers

the potential effects of Forest Service activities on these

species.

Objective 1: Include within the MSHCP Conservation Area at

least 118,110 acres of suitable Habitat (chaparral

and montane coniferous forest between 1,000 and

2,100 m within the Desert Transition, San Jacinto

Mountains and Foothills and Santa Ana Mountain

Bioregions).

Objective 2: Include within the MSHCP Conservation Area at

least 15 occurrences in Aguanga, Blackburn

Canyon and the San Jacinto Mountains (including

Garner Valley, Pyramid Peak, and Kenworthy

Ranger Station).

Conservation for this species will be

achieved by inclusion of at least 118,110

acres of suitable Conserved Habitat and

15 known localities in the San Jacinto

Mountains within large blocks of Habitat in

the MSHCP Conservation Area.

Approximately 52,100 acres (31

percent) of potential Habitat for

California beardtongue will not be

conserved. According to the UCR

herbarium and UCR database, three of

the mapped locations, including one

locality in the San Jacinto Mountains

and the two outliers in Cactus Valley

and north of Sage will not be

conserved. According to the CNDDB,

one of the mapped locations is within

a private in-holding in the San Jacinto

Mountains approximately two miles

north of the intersection of Highway

74 and Highway 371 and will not be

conserved.

None 8 Reserve Managers will avoid or minimize adverse effects to

California beardtongue to the maximum extent practicable.

Reserve Managers will manage grazing activities in proximity to

known and future occurrences.

California bedstraw

(Galium californicum ssp.

primum)

2 California bedstraw is designated as a Group 2 species

because it is restricted to the San Jacinto Mountains,

primarily within USFS lands and because it has specific

Habitat requirements. Within the Plan Area, California

bedstraw is restricted to the ecotone of chaparral and

lower montane coniferous forest and in the lower edge of

the pine belt at elevations of 1,350 m to 1,700 m within

the San Jacinto Mountains Bioregion on USFS lands.

Objective 1: Include within the MSHCP Conservation Area at

least 41,420 acres of suitable Habitat (chaparral

and montane coniferous forest between 1,350 and

1,700 m within the San Jacinto Mountains

Bioregion).

Objective 2: Include within the MSHCP Conservation Area at

least four of the known occurrences of this species

Conservation for this species will be

achieved by inclusion of at least 41,420

acres of suitable Conserved Habitat and

four known localities in the San Jacinto

Mountains between Pine Cove and

Idyllwild within large blocks of Habitat in

the MSHCP Conservation Area.

Approximately 9,180 acres (18

percent) of potential Habitat for

California bedstraw will not be

conserved and will be subject to

impacts consistent with the Plan.

Within the UCR database, two of the

mapped locations are located outside

of the MSHCP Conservation Area

None 8 Reserve Managers will avoid or minimize adverse effects to

California bedstraw populations to the maximum extent

practicable. Reserve Managers will manage this species for

genetic swamping by Galium nuttallii.

Page 110: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-110

California bedstraw is designated as a Forest Service

Sensitive Plant. Forest Service Sensitive Plants are

protected through the implementation of Forest plans and

the biological evaluation (BE) process, which considers

the potential effects of Forest Service activities on these

species.

in the vicinity of Alvin Meadows between Pine

Cove and Idyllwild in the San Jacinto Mountains.

within San Timoteo Canyon west of

Beaumont and within the vicinity of the

Diamond Valley Lake. According to

the CNDDB, one of the mapped

location within the San Jacinto

Mountains is located within a private

in-holding and will not be conserved.

California black walnut

(Juglans californica var.

californica)

2 California black walnut is designated as a Group 2

species because of its specialized Habitat requirements

and limited distribution within the Plan Area. California

black walnut is restricted to woodlands and forests below

900 m. Scattered individual trees exist on the Santa Rosa

Plateau and east of Pedley along Cimonite Avenue and

west of Rubidoux, immediately north of the Highway 60.

These are introduced occurrences (Steve Boyd, pers.

comm.). Other records include occurrences in the Santa

Ana Mountains (south of Corona and west of El Cerrito),

at Lake Skinner and near Steele Peak. Seven of the

known occurrences will be conserved in the Santa Ana

Mountains, at Lake Skinner and in the vicinity of Pedley.

Objective 1: Include within the MSHCP Conservation Area at

least 6,100 acres of suitable Habitat (riparian scrub

forests and woodland/forest and (non-riparian)

woodlands below 900 m within the Santa Ana

Mountains Bioregion).

Objective 2: Include within the MSHCP Conservation Area at

least seven known occurrences of this species

within the Santa Ana Mountains, at Lake Skinner,

at the Santa Rosa Plateau and one east of Pedley.

Conservation for this species will be

achieved by inclusion of at least 6,100

acres of suitable Conserved Habitat and

seven known localities within large blocks

of Habitat in the MSHCP Conservation

Area.

Approximately 3,830 acres (39

percent) of potential Habitat for

California black walnut will be outside

of the MSHCP Conservation Area. Of

this, approximately 3,260 acres (33

percent of total potential Habitat) will

be within Rural Mountainous

designation areas. Although these

areas will not be part of the managed

MSHCP Conservation Area, the levels

of development anticipated in these

areas may be consistent with

maintaining California black walnut in

these areas. Seven of the known

occurrences (near Steele Mountain

and scattered occurrences near

Pedley) will not be conserved in the

MSHCP Conservation Area.

None 8 Reserve Managers will avoid or minimize adverse effects to

California black walnut to the maximum extent practicable.

Reserve managers will manage known and future occurrences

of this species for grazing activities.

California muhly

(Muhlenbergia

californica)

2 California muhly is designated as a Group 2 species

because of its wide distribution within specific Habitat

associations. The species is known from Sage, Aguanga,

Estelle Mountain, Gavilan Hills, Gavilan Plateau, Prado

Dam, La Paz Canyon, Temescal Canyon, and Sitton Peak.

The CNDDB does not contain any mapped locations for

this species in the Plan Area but does contain several

written records. The UCR database does not include any

occurrences in the Plan Area but does contain one

mapped locality to the east of the Plan Area.

The distribution of California muhly is patchy and poorly

understood and the existing records are not believed to be

Objective 1: Include within the MSHCP Conservation Area at

least 368,200 acres of suitable Habitat (coastal

sage scrub, chaparral, meadow/marsh and

montane coniferous forest between 100 and 2,000

m within all Bioregions).

Objective 2: Include within the MSHCP Conservation Area the

known locations at Sage, Aguanga, Estelle

Mountain, Prado Dam, Temescal Canyon, and

Sitton Peak.

Objective 3: Within the MSHCP Conservation Area, confirm 10

localities (locality in this sense is not smaller than

one quarter section) containing at least 50 clumps

Conservation for this species will be

achieved by inclusion of at least 368,200

acres of suitable Conserved Habitat and

ten known localities within large blocks of

Habitat (at Sage, Aguanga, Estelle

Mountain, Gavilan Hills, Gavilan Plateau,

near Prado Dam, Temescal Canyon, and

the Santa Ana Mountains) in the MSHCP

Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 221,350 acres of

potential Habitat will not be included in

the MSHCP Conservation Area. This

species occurs at Sage, Aguanga,

Estelle Mountain, Gavilan Hills, Gavilan

Plateau, near Prado Dam, La Paz

Canyon, Temescal Canyon, and Sitton

Peak in the Santa Ana Mountains (U.S.

Fish and Wildlife Service, Unpublished

Data). Some or all of the occurrences

at these localities may be conserved

within the MSHCP Conservation Area.

None 8 General Management Measures 1 and 4.

Page 111: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-111

indicative of the distribution of this species. Incidental

Take of this species is not included in this permit until

Conservation of the species in the Plan Area has been

demonstrated by reaching Objective 3.

(unless a smaller population has been

demonstrated to be self-sustaining).

California Orcutt grass

(Orcuttia californica)

3 California Orcutt grass is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for floodplain processes. This species is

primarily restricted to the southern basaltic claypan vernal

pools at the Santa Rosa Plateau, and alkaline vernal pools

at Skunk Hollow and at Salt Creek west of Hemet.

This is a species on the Narrow Endemic Plant List

(Section 6.1.3) and surveys for California Orcutt grass

will be conducted as part of the project review process

for public and private projects within the Narrow Endemic

Plant Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species Survey Area

Map, Figure 6-1 of the MSHCP, Volume I). California

Orcutt grass located as a result of survey efforts shall be

conserved in accordance with procedures described

within Section 6.1.3, MSHCP, Volume I.

Objective 1: Include within the MSHCP Conservation Area at

least 6,680 acres of suitable Habitat (playas and

vernal pools within the Riverside Lowlands

Bioregion of the MSHCP Conservation Area).

Objective 2: Include within the MSHCP Conservation Area at

least three of the known locations of California

Orcutt grass at the Santa Rosa Plateau, at Skunk

Hollow and in the upper Salt Creek drainage west

of Hemet.

Objective 3: Surveys for the California Orcutt grass will be

conducted as part of the project review process for

public and private projects within the Narrow

Endemic Plant Species survey area where suitable

Habitat is present (see Narrow Endemic Plant

Species Survey Area Map, Figure 6-1, of the

MSHCP, Volume I). California Orcutt grass located

as a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.1.3 of the MSHCP, Volume I.

Objective 4: Include within the MSHCP Conservation Area the

watershed of the vernal pool complex on the Santa

Rosa Plateau and the vernal pool occurrences at

Skunk Hollow and Upper Salt Creek in order to

maintain hydrologic conditions.

Conservation for this species will be

achieved by inclusion of at least 6,680

acres of suitable Conserved Habitat and

three localities (Santa Rosa Plateau, upper

Salt Creek west of Hemet and Skunk

Hollow) in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring. Implementation of

Objective 4 for this species will maintain

hydrologic processes upon which this

species depends.

Approximately 1,130 acres (14

percent) of potential Habitat (playas

and vernal pools) for California Orcutt

grass will be outside the MSHCP

Conservation Area. It is important to

note that 940 acres (12 percent) of the

potential Habitat occurring outside of

the MSHCP Conservation Area is

located within the Narrow Endemic

Plant Species survey area. The

unverified occurrence of this species

west of the Santa Rosa Plateau may or

may not be conserved.

Yes, see Section

6.1.3 (Protection

o f N a r r o w

Endemic Plant

Species)

8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and enhancing the floodplain

and hydrologic processes of Upper Salt Creek west of Hemet,

Skunk Hollow, and the Santa Rosa Plateau including intermittent

flooding and periodic pooling. Particular management emphasis

will be given to preventing alteration of hydrology and floodplain

dynamics, weed abatement/fire and fire suppression practices,

grazing, off-road vehicle use and competition from alien plant

species.

chickweed oxytheca

(Oxytheca

caryophylloides)

2 Chickweed oxytheca is designated as a Group 2 species.

It is restricted to the San Jacinto Mountains, primarily

within USFS lands. Within the Plan Area chickweed

oxytheca is restricted to montane coniferous forest

(yellow pine forest) on sandy soils at elevations between

1,200 m and 2,600 m. The University of California,

Riverside, (UCR) GIS database and the Rancho Santa Ana

Botanic Gardens, Pomona and UCR herbaria include eight

occurrences in the San Jacinto Mountains dating back to

1924. The most recent occurrence is dated 1999.

Objective 1: Include within the MSHCP Conservation Area at

least 18,660 acres of suitable Habitat (montane

coniferous forest between 1,200 and 2,600 m

within the San Jacinto Mountains and Foothills

Bioregion).

Objective 2: Include within the MSHCP Conservation Area at

least five of the known locations within the San

Jacinto Mountains.

Conservation for this species will be

achieved by inclusion of at least 18,660

acres of suitable Conserved Habitat and

four known localities within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring.

Approximately 9,200 acres (33

percent) of potential Habitat for

chickweed oxytheca will not be

conserved. According to the UCR

database and herbarium records, four

of the mapped locations are located on

private lands or within road right-of-

way and will not be conserved. Of

these four mapped locations,

however, three are dated 1924 and the

None 8 Reserve Managers will avoid or minimize adverse effects to this

species to the maximum extent practicable. Reserve Managers

will manage this species in areas where timber logging and

recreation occur.

Page 112: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-112

The MSHCP Conservation Area configuration is expected

to provide long-term Conservation of the species.

However, due to the age of the records, Incidental Take of

this species is not included in this permit until

Conservation of the species in the Plan Area has been

demonstrated by reaching Objective 3.

Objective 3: Within the MSHCP Conservation Area, confirm 10

localities (locality in this sense is not smaller than

one quarter section) managed with 1,000

individuals each (unless a smaller population has

been demonstrated to be self-sustaining).

third dates from 1978.

Cleveland’s bush

monkeyflower

(Mimulus clevelandii)

2 Cleveland’s bush monkeyflower is designated as a Group

2 species because it is restricted to the Santa Ana and

Agua Tibia mountains, primarily within USFS Lands.

Within the Plan Area, Cleveland’s bush monkeyflower is

restricted to chaparral and lower montane coniferous

forests at elevations above 914 meters within the Santa

Ana and Agua Tibia Mountains. This species has one

population (consisting of several occurrences) on

Santiago Peak in the Santa Ana Mountains and is present

at several localities within the Agua Tibia Mountains.

Most of the known occurrences are within the Cleveland

National Forest. Overall, approximately 10,870 acres

(93%) of potential Habitat in the Plan Area are within

existing Public/Quasi-Public Lands.

Objective 1: Include within the MSHCP Conservation Area at

least 10,870 acres of suitable Habitat (chaparral,

montane coniferous forest and woodland/forest

above 914 m within the Santa Ana Mountains and

Agua Tibia Mountain Bioregions).

Objective 2: Include within the MSHCP Conservation Area the

two known localities of this species on Santiago

Peak in the Santa Ana Mountains and on the

northern slopes of the Agua Tibia Mountains.

Conservation for this species will be

achieved by inclusion of at least 10,870

acres of suitable Conserved Habitat and

two core localities (Santa Ana Mountains

and Agua Tibia Mountains) within large

blocks of Habitat in the MSHCP

Conservation Area.

Approximately 790 acres of potential

Habitat for Cleveland's bush

monkeyflower will not be conserved in

the MSHCP Conservation Area. One

of the records (in the foothills of the

Agua Tibia Mountains) will not be

conserved.

None 8 Reserve Managers will avoid or minimize adverse effects to

Cleveland bush monkey flower populations to the maximum

extent practicable. Reserve Managers will manage this species

in ridgeline and mountaintop areas where trails, roads and

transmitting equipment are existing or proposed.

cliff cinquefoil

(Potentilla rimicola)

2 Cliff cinquefoil is designated as a Group 2 species

because it is restricted to the San Jacinto Mountains,

primarily within USFS lands. Within the Plan Area, cliff

cinquefoil is restricted to openings in upper-montane

coniferous forest and subalpine coniferous forest at

elevations between 2,390 m and 3,030 m within the San

Jacinto Mountains Bioregion. Cliff cinquefoil is a

perennial plant which grows in granitic crevices within

upper montane and subalpine coniferous forest.

The UCR database does not contain any occurrences for

this species in the Plan Area. The CNDDB contains two

occurrences in the Plan Area: in Dark Canyon and near

Deer Spring in the San Jacinto Mountains.

The cliff cinquefoil is restricted to the San Jacinto

Mountains and the MSHCP Conservation Area

configuration is expected to provide long-term

Conservation of the species. However, due to the paucity

of occurrence data, Incidental Take of this species is not

included in this permit until Conservation of the species

Objective 1: Include within the MSHCP Conservation Area at

least 1,500 acres of suitable Habitat (montane

coniferous forest between 2,390 and 3,030 m

within the San Jacinto Mountains Bioregion).

Objective 2: Include within the MSHCP Conservation Area the

two known localities of this species in Dark

Canyon and near Deer Spring.

Objective 3: Within the MSHCP Conservation Area, confirm five

localities (locality in this sense is not smaller than

one quarter section).

Conservation for this species will be

achieved by inclusion of at least 1,500

acres of suitable Conserved Habitat and

two known localities within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring.

Approximately 10 acres (less than 1

percent) of potential Habitat for cliff

cinquefoil will not be conserved. None

of the known occurrences will be

located outside of the MSHCP

Conservation Area.

None 8 Reserve Managers will avoid or minimize adverse effects to cliff

cinquefoil to the maximum extent practicable. Reserve

Managers will manage this species where rock-climbing

activities are allowed or proposed.

Page 113: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-113

in the Plan Area has been demonstrated by reaching

Objective 3.

This species is designated as a Forest Service Sensitive

Species which can be managed at the site specific level.

Forest Service Sensitive Species are protected through

the implementation of Forest Plans and the biological

evaluation (BE) process, which considers the potential

effects of Forest Service activities on these species.

Coulter’s goldfields

(Lasthenia glabrata ssp.

coulteri)

3 Coulter’s goldfields is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for floodplain processes. This species is

primarily restricted to the alkali floodplains of the San

Jacinto River, Mystic Lake and Salt Creek in association

with Willows, Domino and Traver soils. Coulter’s

goldfields occurs as three core locations within the Plan

Area. The largest and most significant populations are

within the San Jacinto Wildlife Area and southern shores

of Mystic Lake. This represents the largest remaining

concentration of this species throughout its known range.

Although currently suppressed by discing and dryland

farming, the middle segment of the San Jacinto River

represents a Core Area. A third Core Area is located on

the alkali flats between Alberhill and Lake Elsinore. One

population is known to occur on Salt Creek. Small, or

historic populations, have also been reported from Anza,

the vicinity of Murrieta and Temecula, the lake bed of

Lake Elsinore, and at Woodcrest near Mockingbird

Canyon. The current status of many of these smaller

populations is unknown.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for Coulter’s

goldfields will be conducted as part of the project review

process for public and private projects within the Criteria

Area where suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the MSHCP,

Volume I). Coulter’s goldfields located as a result of

survey efforts shall be conserved in accordance with

Objective 1: Include within the MSHCP Conservation Area at

least 6,900 acres of suitable habitat (grassland and

playas and vernal pools within the San Jacinto

River, Mystic Lake and Salt Creek portions of the

MSHCP Conservation Area).

Objective 2: Include within the MSHCP Conservation Area at

least 20 of the known occurrences of this species,

including the three Core Areas: the San Jacinto

Wildlife Area and the southern shores of Mystic

Lake, the middle segment of the San Jacinto River

and a portion of the Alberhill locality.

Objective 3: Surveys for Coulter's goldfields will be conducted

for public and private projects within the Criteria

Area where suitable habitat is present (see Criteria

Area Species Survey Area Map, Figure 6-2 of the

MSHCP, Volume I). Coulter's goldfields located as

a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.3.2 of the MSHCP, Volume I.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along the San Jacinto River consistent

with Objective 1. Floodplain processes will be

maintained along the river in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change. A potential future flood control project

along the San Jacinto River designed and

constructed consistent with the criteria for the San

Conservation for this species will be

achieved by inclusion of at least 6,900

acres of suitable Conserved Habitat and

three core localities (the San Jacinto

Wildlife Area and the southern shores of

Mystic Lake; along the middle segment of

the San Jacinto River; and a portion of the

Core Area at Alberhill) within large blocks

of Habitat in the MSHCP Conservation

Area. In addition, implementation of

Objective 3 for this species will provide

new data to guide Reserve Assembly,

m an a g e m e n t a n d m o n it o r in g .

Implementation of Objectives 4 and 5 for

this species will maintain alluvial

processes (floodplain hydrology and

flooding) upon which this species

depends.

Approximately 1,370 acres (17

percent) of potential Habitat for

Coulter's goldfields will be outside the

MSHCP Conserva t ion Area .

Twenty-five of the 80 occurrences

included in the UCR database,

herbarium records and CNDDB will be

outside the MSHCP Conservation

Area. However, the current status of

many of these small or historic

populations (reported from Anza, the

vicinity of Murrieta and Temecula, and

at Woodcrest near Mockingbird

Canyon) is unknown.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and enhancing the floodplain

processes of the San Jacinto River, upper Salt Creek and the

alkali wetlands near Nichols Road, including intermittent flooding

and periodic pooling. Particular management emphasis will be

given to preventing alteration of hydrology and floodplain

dynamics, weed abatement/fire and fire suppression activities,

off-road vehicle use, trampling and competition from non-native

plant species.

Page 114: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-114

procedures described within Section 6.3.2, MSHCP,

Volume 1.

Jacinto River project presented in Section 7.0 of

the MSHCP, Volume I and with the Area Plan

Subunit guidelines for Subunit 1 of the

Lakeview/Nuevo Area Plan and Subunit 4 of the

Mead Valley Area Plan will be considered to be

consistent with this objective.

Objective 5: Include within the MSHCP Conservation Area the

floodplain along Salt Creek generally in its existing

condition from Warren Road to Newport Road and

the vernal pools in Upper Salt Creek west of

Hemet. Floodplain processes will be maintained

within the linkage in order to provide for the

distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change.

Coulter’s matilija poppy

(Romneya coulteri)

1 Coulter’s matilija poppy is designated as a Group 1

species because it has a wide distribution throughout the

Plan Area within suitable Habitat. Coulter’s matilija poppy

is known from the confluence of Leach and Dickey

Canyons; Alberhill (Mountain Avenue and canyons near

Alberhill); Fresno Canyon and Wardlow Canyon west of

Corona; and the Gavilan Plateau; Temescal Canyon near

Glen Eden and Hagador Canyon; and Horsethief Canyon.

Coulter’s matilija poppy occurs in dry washes and

canyons below 1,200 m in open, mildly disturbed sage

scrub, chaparral and along rocky drainages.

The University of California, Riverside (UCR) database has

35 occurrence points for this species, the majority of

which occur in the Santa Ana Mountains and east to

Temescal Canyon. The herbaria at UCR and the Rancho

Santa Ana Botanic Gardens contain eight records of this

species, scattered from the Santa Ana Mountains east to

the Gavilan Plateau.

The Coulter’s matilija poppy is restricted to the eastern

slopes and foothills of the Santa Ana Mountains. Most of

the records for this species are outside of the proposed

MSHCP Conservation Area. However, the existing records

are not believed to be indicative of the distribution of this

species and the MSHCP Conservation Area configuration

is expected to provide long-term Conservation of the

Objective 1: Include within the MSHCP Conservation Area

65,350 acres of chaparral and 5,300 acres of

coastal sage scrub below 1,200 feet on Forest

Service and Public/Quasi-Public Lands within the

Santa Ana Mountains Bioregion.

Objective 2: Within the MSHCP Conservation Area, confirm 30

localities (locality in this sense is not smaller than

one quarter section).

Conservation for this species will be

achieved by inclusion of at least 70,650

acres of suitable Conserved Habitat and

25 known localities within large blocks of

Habitat in the MSHCP Conservation Area.

About 26,730 acres of potential

Habitat for the Coulter's matilija poppy

will be outside the MSHCP

Conservation Area. Twenty-eight of

the 43 known occurrences are located

outside the MSHCP Conservation

Area, primarily in the vicinity of

Woodcrest, on the Gavilan Plateau, the

foothills of the Santa Ana Mountains.

None 8 General Management Measure 1.

Page 115: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-115

species. Incidental Take of this species is not included in

this permit until Conservation of the species in the Plan

Area has been demonstrated by reaching Objective 2.

Davidson’s saltscale

(Atriplex serenana var.

davidsonii)

3 Davidson’s saltscale is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for floodplain processes. This species is

primarily restricted to the alkali floodplains of the San

Jacinto River, Mystic Lake and Salt Creek in association

with Willows, Domino and Traver soils. Populations are

known from the Upper Salt Creek drainage area west of

Hemet and along the San Jacinto River floodplain from

Mystic Lake south to the Ramona Expressway where it

occurs in small, patchy populations. The Salt Creek

populations appear to represent the largest remaining

concentrations of this species known to exist. This

species may also occur in the vicinity of the Nichols Road

wetlands at Alberhill and Murrieta Hot Springs.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list surveys for Davidson’s

saltscale will be conducted as part of the project review

process for public and private projects within the Criteria

Area where suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the MSHCP,

Volume I). Davidson’s saltscale located as a result of

survey efforts shall be conserved in accordance with

procedures described within Section 6.3.2, MSHCP,

Volume 1.

Objective 1: Include within the MSHCP Conservation Area at

least 6,900 acres of suitable habitat (grassland and

playas and vernal pools within the San Jacinto

River, Mystic Lake and Salt Creek portions of the

MSHCP Conservation Area).

Objective 2: Include within the MSHCP Conservation Area the

three known localities of Davidson's saltscale at

Salt Creek, the San Jacinto River and the San

Jacinto Wildlife Area.

Objective 3: Surveys for the Davidson's saltscale will be

conducted as part of the project review process for

public and private projects within the Criteria Area

where suitable habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the

MSHCP, Volume I). Davidson's saltscale located

as a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.3.2 of the MSHCP, Volume 1.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along the San Jacinto River consistent

with Objective 1. Floodplain processes will be

maintained along the river in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change. A potential future flood control project

along the San Jacinto River designed and

constructed consistent with the criteria for the San

Jacinto River project presented in Section 7.0 of

the MSHCP, Volume I and with the Area Plan

Subunit guidelines for Subunit 1 of the

Lakeview/Nuevo Area Plan and Subunit 4 of the

Mead Valley Area Plan will be considered to be

consistent with this objective.

Objective 5: Include within the MSHCP Conservation Area the

floodplain along Salt Creek generally in its existing

condition from Warren Road to Newport Road and

Conservation for this species will be

achieved by inclusion of at least 6,900

acres of suitable Conserved Habitat and

three core localities (Salt Creek west of

Hemet, the San Jacinto Wildlife Area and

along the middle segment of the San

Jacinto River) and two potential locations

(Nichols Road wetlands and near Murrieta

Hot Springs) within large blocks of Habitat

in the MSHCP Conservation Area.

Moreover, the configuration of the Criteria

Area and Public/Quasi-Public Lands

provides for maintenance of floodplain

processes along Salt Creek and the San

Jacinto River as described above. In

addition, implementation of Objective 3 for

this species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 1,370 acres (17

percent) of potential Habitat for

Davidson's saltscale will not be

conserved within the MSHCP

Conservation Area.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 General Management Measure 4. Reserve Managers will ensure

Habitat support functions within the MSHCP Conservation Area

by maintaining and enhancing the floodplain processes of the

San Jacinto River, Salt Creek and Mystic Lake, including

intermittent flooding and periodic pooling. Particular

management emphasis will be given to preventing alteration of

hydrology and floodplain dynamics, farming, fire and fire

suppression activities, off-road vehicle use, grazing and

competition from non-native plant species.

Page 116: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-116

the vernal pools in Upper Salt Creek west of

Hemet. Floodplain processes will be maintained

within the linkage in order to provide for the

distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change.

Engelmann oak

(Quercus engelmanii)

2 Engelmann oak is designated as a Group 2 species

because of its specialized Habitat requirements and

limited distribution within the Plan Area. Engelmann oak

is restricted to southern oak woodlands and riparian/oak

woodlands. Although 75 occurrences of Engelmann oak

have been recorded within western Riverside County, the

majority of stands in the Plan Area occur in a twelve-by-

twelve-mile area around the Santa Rosa Plateau in the

foothills of the Santa Ana Mountains. Engelmann oaks

are found on the Plateau in both the open or savannah

phase and the riparian phase.

Objective 1: Include within the MSHCP Conservation Area at

least 19,070 acres of suitable Habitat (woodlands

and forests, including riparian, where they occur

below 1,325 m within the Santa Ana, Riverside

Lowlands and San Jacinto Foothills Bioregions).

Objective 2: Include within the MSHCP Conservation Area at

least 33 known occurrences of this species,

including the core locations at the Santa Rosa

Plateau and in the Santa Ana Mountains.

Objective 3: Within the MSHCP Conservation Area, maintain

recruitment at a minimum of 80 percent of the

conserved populations as measured by the

presence/absence of seedlings and/or saplings

across any consecutive five years.

Conservation for this species will be

achieved by inclusion of at least 19,070

acres of suitable Conserved Habitat and

33 known localities within large blocks of

Habitat and Linkages in the MSHCP

Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 9,300 acres (33

percent) of the potential Habitat will

not be included in the MSHCP

Conservation Area. Of this,

approximately 4,490 acres will be in

Rural/Mountains designation areas.

Forty-three occurrences will be

located outside of the MSHCP

Conservation Area; 29 of those 43

occurrences are located in the

Rural/Mountainous area.

None 8 1 to 5 Reserve Managers will avoid or minimize adverse effects to

Engelmann's oak to the maximum extent practicable. Reserve

Managers will manage known and future occurrences of this

species in order to maintain recruitment at a minimum of 80% of

the conserved populations as measured by the

presence/absence of seedlings and/or saplings across any

consecutive five years. Individual seedlings and/or saplings will

be followed in order to assemble demographic data.

Fish’s milkwort

(Polygala cornuta var.

fishiae)

2 Fish’s milkwort is designated as a Group 2 species. Fish’s

milkwort is associated with shaded areas within

cismontane oak woodlands and riparian woodlands,

although it also occurs in xeric and mesic chaparral

Habitat at elevations between 100 m and 1,100 m in the

Santa Ana and Agua Tibia Mountains. The known and

historic occurrences in the Plan Area are restricted to the

Tenaja/Santa Rosa Plateau area and the lower national

forest of the Santa Ana Mountains (San Mateo Canyon,

Santa Rosa Plateau, Temecula Canyon, Cole Canyon and

the Santa Margarita Ecological Reserve). Fish’s milkwort

has been recorded just outside the southern boundary of

Riverside County along the southern flank of the Agua

Tibia Mountains indicating that this species may also be

found along the northern slopes of the Agua Tibia

Mountains.

Objective 1: Include within the MSHCP Conservation Area at

least 123,580 acres of suitable Habitat (chaparral,

riparian scrub and woodland/forest between 100

and 1,100 m in the Santa Ana Mountains and Agua

Tibia Mountains Bioregions).

Objective 2: Include within the MSHCP Conservation Area at

least three of the known localities (Santa Rosa

Plateau, Santa Margarita Ecological Preserve, and

San Mateo Canyon).

Objective 3: Within the MSHCP Conservation Area, confirm 10

localities (locality in this sense is not smaller than

one quarter section) with at least 50 individuals

(ramets or genets) each (unless a smaller

population has been demonstrated to be

self-sustaining).

Conservation for this species will be

achieved by inclusion of at least 123,580

acres of suitable Conserved Habitat and at

least three known localities within large

blocks of Habitat at San Mateo Canyon in

the Santa Ana Mountains, the Santa Rosa

Plateau and the Santa Margarita Ecological

Preserve in the MSHCP Conservation

Area. In addition, implementation of

Objective 3 for this species will provide

new data to guide Reserve Assembly,

management and monitoring.

Approximately 75,210 acres will not

be included in the MSHCP

Conservation Area. Of nine mapped

localities, four (two at Temecula

Canyon and Cole Canyon west of

Murrieta , and two at Main Street

Canyon just south of Corona) are

located outside the MSHCP

Conservation Area. Currently

unknown occurrences outside the

MSHCP Conservation Area will be

subject to Take in accordance with

Section 6.1.4.

None 8 Reserve Managers will avoid or minimize adverse effects to this

species to the maximum extent practicable.

Page 117: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-117

Fish’s milkwort is restricted to the eastern slopes of the

Santa Ana Mountains and possibly the northern slopes of

the Agua Tibia Mountains. Although the MSHCP

Conservation Area configuration is expected to provide

long-term Conservation of the species, the distribution of

the species is not entirely understood. Incidental Take of

this species is not included in this permit until

Conservation of the species in the Plan Area has been

demonstrated by reaching Objective 3.

graceful tarplant

(Holocarpha virgata ssp.

elongata)

2 Graceful tarplant is designated as a Group 2 species

because although this species has a fairly scattered

distribution, the known occurrences are concentrated

within the Santa Ana Mountains and Foothills, primarily

within USFS Lands. Within the Plan Area, graceful

tarplant is restricted to coastal scrub, chaparral,

cismontane woodland, lower montane coniferous forest

and valley and foothill grasslands at elevations below 600

m within Western Riverside County.

Graceful tarplant is a Forest Service Sensitive Species

found in the Cleveland National Forest. Forest Service

Sensitive Plants are protected through the implementation

of Forest Plans and the biological evaluation (BE)

process, which considers the potential effects of Forest

Service activities on these species.

The MSHCP Conservation Area configuration is expected

to provide long-term Conservation of the species.

However, due to the age of the records (dating from 1959

to 1994), Incidental Take of this species is not included in

this permit until Conservation of the species in the Plan

Area has been demonstrated by reaching Objective 3.

Objective 1: Include within the MSHCP Conservation Area at

least 129,910 acres of suitable Habitat (chaparral,

coastal sage scrub, grassland, meadows and

marshes below 600 m).

Objective 2: Include within the MSHCP Conservation Area at

least eight of the known locations, including four

occurrences located on Santa Rosa Plateau and

four occurrences in the San Mateo Canyon

Wilderness Area.

Objective 3: Within the MSHCP Conservation Area, confirm 10

localities (locality in this sense is not smaller than

one quarter section) with 1,000 individuals each

(unless a smaller population has been

demonstrated to be self-sustaining).

Conservation for this species will be

achieved by inclusion of at least 129,910

acres of suitable Conserved Habitat and

eight known localities (on the Santa Rosa

Plateau and in the San Mateo Canyon

Wilderness Area of the Santa Ana

Mountains) within large blocks of Habitat

in the MSHCP Conservation Area. In

addition, implementation of Objective 3 for

this species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 156,180 acres (54

percent) of potential Habitat for

graceful tarplant will not be conserved.

One of the mapped locations is located

southwest of Cherry Street in

Temecula, outside of the MSHCP

Conservation Area. This locality dates

from 1967 and is likely extirpated.

None 8 Reserve Managers will avoid or minimize adverse effects to

graceful tarplant to the maximum extent practicable.

Hall‘s monardella

(Monardella macrantha

ssp. hallii)

2 Hall’s monardella is designated as a Group 2 species

because although this species has a fairly scattered

distribution (Santa Ana Mountains, San Jacinto

Mountains, San Bernardino Mountains and the Agua Tibia

Mountains), the known occurrences are concentrated

within the USFS lands. Within the Plan Area, Hall’s

monardella is restricted to chaparral, lower montane

coniferous forest, woodlands and forest, and valley and

Objective 1: Include within the MSHCP Conservation Area at

least 224,860 acres of suitable Habitat (chaparral,

grasslands, montane coniferous forest and

woodland forest within the Santa Ana Mountain,

San Jacinto Mountains, San Bernardino Mountains

and Agua Tibia Mountain Bioregions).

Conservation for this species will be

achieved by inclusion of at least 224,860

acres of suitable Conserved Habitat and

five known localities (two in the San

Jacinto Mountains, two in the Agua Tibia

Mountains and one in the Santa Ana

Mountains) within large blocks of Habitat

in the MSHCP Conservation Area.

Approximately 83,530 acres (27

percent) of potential Habitat for Hall’s

monardella will not be included within

the Criteria Area or existing

Public/Quasi-Public Lands. None of

the known occurrences for this

species will be outside the MSHCP

Conservation Area.

None 8 Reserve Managers will avoid or minimize adverse effects to

Hall's monardella populations to the maximum extent practicable.

Reserve Managers will manage known and future occurrences

of this species where recreational and fire-suppression activities

are allowed or planned.

Page 118: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-118

foothill grasslands. This is a species which is found

primarily on USFS lands at Cahuilla Mountain and a

locality south west of Pine Cove in the San Jacinto

Mountains, the north slope of the Agua Tibia Mountains,

and Santiago Peak in the Santa Ana Mountains.

This species is designated as a Forest Service Sensitive

Species. Forest Service Sensitive Species are protected

through the implementation of Forest Plans and the

biological evaluation (BE) process, which considers the

potential effects of Forest Service activities on these

species.

Objective 2: Include within the MSHCP Conservation Area at

least the five known locations of this species:

Cahuilla Mountain and an occurrence southwest of

Pine Cove in the San Jacinto Mountains, two

occurrences on the north slope of the Agua Tibia

Mountains and Santiago Peak in the Santa Ana

Mountains.

Hammitt's clay-cress

(Sibaropsis hammittii)

3 Hammitt's clay-cress is designated as a Group 3 species

because of its limited geographic distribution and special

habitat requirements. Within the Plan Area, Hammitt's

clay-cress is only known from the Elsinore Peak area of

the Santa Ana Mountains in grasslands. Suitable habitat

consists of coastal sage scrub, chaparral, and peninsular

juniper woodland on clay soils between 300 and 1,000 m

in the Santa Ana Mountains and Riverside Lowlands

bioregions. Suitable habitat for this species is found on

Public/Quasi-Public (Forest Service) and private lands.

This is a species on the Narrow Endemic Plant List

(Section 6.1.3) and surveys for Hammitt's clay-cress will

be conducted as part of the project review process for

public and private projects within the Narrow Endemic

Plant Species survey area where suitable habitat is

present (see Narrow Endemic Plant Species Survey Area

Map, Figure 6-1 of the MSHCP, Volume I). Hammitt's

clay-cress located as a result of survey efforts shall be

conserved in accordance with procedures described

within Section 6.1.3, MSHCP, Volume 1.

Objective 1: Include within the MSHCP Conservation Area at

least 21,260 acres of suitable habitat (grassland,

coastal sage scrub, chaparral and peninsular

juniper woodland between 300 and 1,000 m in the

Riverside Lowlands and Santa Ana Mountains

bioregions). This will include at least 2,070 acres

of clay soils: Altamont (190 acres), Auld (250

acres), Bosanko (600 acres), Claypit (100 acres)

and Porterville (930 acres) soils underlying the

suitable habitat.

Objective 2: Include within the MSHCP Conservation Area the

Core Area for this species, including at least the

one known locality near Elsinore Peak and suitable

habitat adjacent to these occurrences.

Objective 3: Surveys for Hammitt's clay-cress will be

conducted as part of the project review process for

public and private projects within the Narrow

Endemic Plant Species survey area where suitable

habitat is present (see Narrow Endemic Plant

Species Survey Area Map, Figure 6-1 of the

MSHCP, Volume I). Hammitt's clay-cress located

as a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.1.3, MSHCP, Volume I.

Conservation for this species will be

achieved by inclusion of at least 21,260

acres of suitable Conserved Habitat and

five known occurrences near Elsinore

Peak within large blocks of Habitat in the

MSHCP Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 15,825 acres (42%) of

suitable Habitat will not be conserved.

It is important to note, however, that

this suitable Habitat is included within

the Narrow Endemic Plant Species

survey area and Conservation of this

suitable Habitat will be addressed in

accordance with the procedures

presented in the Narrow Endemic

Plant Species policy described in

Section 6.1.3 of the MSHCP, Volume

I.

Yes, see Section

6.1.3 (Protection

o f N a r r o w

Endemic Plant

Species).

8 Reserve Managers will manage this species with regard to

alteration of the natural fire regime, trampling, off-road vehicle

use, and non-native plant species.

Page 119: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-119

heart-leaved pitcher sage

(Lepechinia cardiophylla)

2 Heart-leaved pitcher sage is designated as a Group 2

species because of its restriction to the Santa Ana

Mountains, primarily (potentially all) within USFS lands.

Within the Plan Area, heart-leaved pitcher sage is

restricted to chaparral and woodlands and forests at

elevations between 550 m and 1,370 m within the Santa

Ana Mountains. All populations occur within USFS lands

except four occurrences, which are suspect and should

be verified.

This is a species which is found in a number of locations

in the Santa Ana Mountains, including Sierra Peak, Indian

Truck Trail, Bald Peak, Trabuco Peak, Horsethief Trail,

Pleasants Peak and the ridge between Ladd Canyon and

East Fork Canyon. All of the undisputed occurrences are

located on USFS lands.

Heart-leaved pitcher sage is designated a Forest Service

Sensitive Species. Forest Service Sensitive Species are

protected through the implementation of Forest Plans and

the biological evaluation (BE) process, which considers

the potential effects of Forest Service activities on these

species.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for heart-

leaved pitcher sage will be conducted as part of the

project review process for public and private projects

within the Criteria Area where suitable Habitat is present

(see Criteria Area species Survey Area Map, Figure 6-2 of

the MSHCP, Volume I). Heart-leaved pitcher sage located

as a result of survey efforts shall be conserved in

accordance with procedures described within Section

6.3.2, MSHCP, Volume 1.

Objective 1: Include within the MSHCP Conservation Area at

least 56,950 acres of suitable Habitat (chaparral,

woodlands and forests between 550 m and 1,370

m within the Santa Ana Mountains Bioregion).

Objective 2: Include within the MSHCP Conservation Area at

least six known populations in the Santa Ana

Mountains (within the vicinity of Sierra Peak, Indian

Truck Trail, Bald Peak, Trabuco Peak, Horsethief

Trail, Pleasants Peak, and the ridge between Ladd

Canyon and East Fork Canyon).

Objective 3: Surveys for the heart-leaved pitcher sage will be

conducted as part of the project review process for

public and private projects within the Criteria Area

where suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the

MSHCP, Volume I). Heart-leaved pitcher sage

located as a result of survey efforts shall be

conserved in accordance with procedures

described within Section 6.3.2 of the MSHCP,

Volume 1.

Conservation for this species will be

achieved by inclusion of at least 56,950

acres of suitable Conserved Habitat and

six known localities (in the Santa Ana

Mountains of the Cleveland National

Forest) within large blocks of Habitat in the

MSHCP Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 14,560 acres (20

percent) of potential Habitat for heart-

leaved pitcher sage will not be

included within the Criteria Area or

existing Public/Quasi-Public Lands.

Four populations of heart-leaved

pitcher sage recorded outside of the

Santa Ana Mountains (Cleveland

National Forest) and outside of the

MSHCP Conservation Area are

suspect and should be verified.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 Reserve Managers will avoid or minimize adverse effects to

heart-leaved pitcher sage to the maximum extent practicable.

Reserve Managers will manage known and future occurrences

of this species where transmission lines and fire-suppression

activities are allowed or planned.

intermediate mariposa lily

(Calochortus weedii var.

intermedius)

2 Intermediate mariposa lily is designated as a Group 2

species because of its scattered but restricted distribution

within particular Habitat associations. Within the Plan

Area, this species is known from Vail Lake and the hills

west of Crown Valley. Intermediate mariposa lily is also

known from Sierra Peak, along the border between

Orange County and Riverside County, although this

Objective 1: Include within the MSHCP Conservation Area at

least 195,730 acres of suitable Habitat (chaparral

and coastal sage scrub between 120 and 850 m).

Objective 2: Include within the MSHCP Conservation Area at

least two of the known localities (hills west of

Crown Valley and Vail Lake) and possibly a third

Conservation for this species will be

achieved by inclusion of at least 195,730

acres of suitable Conserved Habitat and at

least two known localities within large

blocks of Habitat at Vail Lake and Crown

Valley in the MSHCP Conservation Area.

Approximately 147,550 (43 percent) of

potential Habitat will not be included in

the MSHCP Conservation Area. All of

the known occurrences of this species

will be conserved.

None 8 Reserve Managers will avoid or minimize adverse effects to

intermediate mariposa lily to the maximum extent practicable.

Reserve Managers will manage known and future occurrences

of this species where fire, fire-suppression or road construction

activities are allowed or proposed.

Page 120: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-120

occurrence may not lie within the boundaries of the Plan

Area. This species occurs on dry, rocky open slopes and

rock outcrops in coastal scrub and chaparral at elevations

from 120 m to 850 m.

This species is designated as a Forest Service Sensitive

Species. Forest Service Sensitive Plants are protected

through the implementation of Forest plans and the

biological evaluation (BE) process, which considers the

potential effects of Forest Service activities on this

species.

locality (Sierra Peak area of the Santa Ana

Mountains) of the species.

Jaeger’s milk-vetch

(Astragalus pachypus var.

jaegeri)

2 Jaeger's milk-vetch is designated as a Group 2 species

because of its several Core Areas. Although the species

has a fairly scattered distribution (Vail Lake near Kolb

Creek, on the south side of Aguanga Valley, in the vicinity

of Sage, Temecula Canyon, in the vicinity of Castile

Canyon, in a canyon west of Portrero Creek, and at the

base of Agua Tibia Mountain), Jaeger's milk-vetch

appears to be concentrated in the vicinity of Sage, Vail

Lake near Kolb Creek, and the base of Agua Tibia

Mountains. Jaeger's milk-vetch is endemic to northern

San Diego and southern Riverside counties.

Jaeger's milk-vetch occurs on dry ridges and valleys and

open sandy or rocky slopes in coastal scrub, chaparral,

valley and foothill grassland and cismontane woodland

Habitats at elevations of 365 to 915 m (CNDDB 2000;

CNPS 2001). Most areas of known written descriptions

of the species are being conserved either within the

Criteria Area or existing Public/Quasi-Public Lands

including the Core Areas: Sage, Vail Lake near Kolb

Creek, and the base of Agua Tibia Mountains.

This species is designated as a Forest Service Sensitive

Species which can be managed at the site specific level.

Forest Service Sensitive Species are protected through

the implementation of Forest Plans and the biological

evaluation (BE) process, which considers the potential

effects of Forest Service activities on these species.

Objective 1: Include within the MSHCP Conservation Area

249,440 acres of suitable Habitat (chaparral,

grassland, coastal sage scrub and woodland/forest

between 365 and 915 m in the appropriate

Bioregions).

Objective 2: Include within the MSHCP Conservation Area the

seven known localities (18 occurrences) of this

species at Aguanga Valley, San Jacinto Mountains,

Potrero Creek, Sage, Temecula Canyon, and the

Core location at Vail Lake and the base of the Agua

Tibia Mountains.

Conservation for this species will be

achieved by inclusion of at least 249,440

acres of suitable Conserved Habitat and

seven known localities (Aguanga Valley,

Sage, Vail Lake, San Jacinto Mountains,

Agua Tibia Mountains, Potrero Creek, and

Temecula Canyon) within large blocks of

Habitat in the MSHCP Conservation Area.

Approximately 223,800 acres (48

percent) of potential Habitat will not be

conserved. Of the 11 herbarium

records, two of the localities will not

be conserved: Beaumont (dating from

1897) and the foothills of the Agua

Tibia Mountains (dating from 19997).

Of the three UCR database point

localities for this species, one of the

records (Beaumont 1897) will not be

conserved; however, this overlaps

with the herbarium Beaumont 1897

record.

None 8 Reserve Managers will avoid or minimize adverse effects to

Jaeger's milkvetch to the maximum extent practicable. Reserve

Managers will manage known and future occurrences of this

species where agricultural conversion and grazing is allowed or

proposed.

Page 121: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-121

Johnston’s rock cress

(Arabis johnstonii)

3 Johnston’s rock cress is designated as a Group 3 species

because it is endemic to the San Jacinto Mountains and

the known populations require specific monitoring and

management. Within the Plan Area, Johnston’s rock

cress is restricted to the Garner Valley/Lake Hemet area

of the San Jacinto Mountains in chaparral and pine forest

Habitat at elevations of 1,400 m to 2,150 m. Suitable

Habitat for this species is found on Public/Quasi-Public

(Forest Service) and private lands. In the Plan Area, most

of the occurrences within the Forest are in two grazing

allotments. The Forest Service has taken steps to

minimize the effects of grazing where this plant is present

on grazing allotments.

This is a species on the Narrow Endemic Plant list

(Section 6.1.3) and surveys for Johnston’s rock cress will

be conducted as part of the project review process for

public and private projects within the Narrow endemic

Plant Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species Survey Area

Map, Figure 6-1 of the MSHCP, Volume I). Johnston’s

rock cress located as a result of survey efforts shall be

conserved in accordance with procedures described

within Section 6.1.3, MSHCP, Volume I.

Objective 1: Include within the MSHCP Conservation Area at

least 34,975 acres of suitable Habitat (chaparral

and pine forest Habitat between 1,400 and 2,150

m within the San Jacinto Mountains Bioregion).

Objective 2: Include within the MSHCP Conservation Area the

two Core Areas for this species, including at least

17 of the known occurrences in Garner Valley and

Mountain Springs and suitable Habitat adjacent to

these occurrences.

Objective 3: Surveys for Johnston’s rock cress will be

conducted as part of the project review process for

public and private projects within the Narrow

Endemic Plant Species survey area where suitable

Habitat is present (see Narrow Endemic Plant

Species Survey Area Map, Figure 6-1 of the

MSHCP, Volume I). Johnston’s rock cress located

as a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.1.3, MSHCP, Volume I.

Conservation for this species will be

achieved by inclusion of at least 34,975

acres of suitable Conserved Habitat and

17 known localities within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring.

Approximately 11,810 acres (25

percent) of potential Habitat will not be

conserved. According to the UCR

database, one of the mapped locations

is located on private lands and one of

the CNDDB records is not conserved.

It is important to note, however, that

this potential Habitat and the mapped

location are included within the

Narrow Endemic Plant Species survey

area and Conservation of this potential

Habitat and known location will be

addressed in accordance with the

procedures presented in the Narrow

Endemic Plant Species policy

described in Section 6.1.3 of the

MSHCP, Volume I.

Yes, see Section

6.1.3 (Protection

of Narrow

Endemic Plant

Species)

8 Reserve Managers will avoid or minimize adverse effects to

Johnston's rock cress to the maximum extent practicable.

Reserve Managers will manage known and future occurrences

of this species where fire and fire suppression, off-road vehicle

use, and grazing activities are allowed or proposed.

lemon lily

(Lilium parryi)

2 Lemon lily is designated as a Group 2 species because it

is restricted to the San Jacinto Mountains, and has site

specific monitoring and management requirements.

Within the Plan Area, lemon lily is restricted to forested,

shady stream banks within narrow canyon bottoms,

higher than 1,300 m above mean sea level within the San

Jacinto Mountains Bioregion. In Western Riverside

County, lemon lily is considered to be limited to the San

Jacinto Mountains (Reiser 1994; Skinner 1988). The

known localities are within the San Jacinto Mountains.

This plant is designated as a Forest Service Sensitive

Species. Forest Service Sensitive Species are protected

through the implementation of Forest Plans and the

biological evaluation (BE) process, which considers the

Objective 1: Include within the MSHCP Conservation Area at

least 10,250 acres of suitable Habitat (woodland/

forest and riparian scrub, woodland and forest

above 1,300 m within the San Jacinto Mountains

Bioregion).

Objective 2: Include within the MSHCP Conservation Area at

least six localities (seven occurrences) within the

San Jacinto Mountains.

Conservation for this species will be

achieved by inclusion of at least 10,250

acres of suitable Conserved Habitat and

17 known localities within large blocks of

Habitat in USFS lands in the San Jacinto

Mountains w i t h in the MSHCP

Conservation Area.

Approximately 1,170 acres (10

percent) of potential Habitat for lemon

lily will not be conserved. Of the

records in the UCR database and the

herbaria at UCR and Rancho Santa

Ana Botanic Gardens, five of the

mapped locations are located on

private lands within the San Jacinto

Mountains and will not be conserved.

None 8 Reserve Managers will avoid or minimize adverse effects to

lemon lily to the maximum extent practicable. Reserve

Managers will manage this species for pollinators,

over-collection, flood control activities and competition with

non-native plant species.

Page 122: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-122

potential effects of Forest Service activities on these

species.

little mousetail

(Myosurus minimus ssp.

apus)

3 Little mousetail is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for floodplain processes. This species is

primarily restricted to vernal pools in association with clay

or alkali soils. Little mousetail occurs as three Core

locations within the Plan Area: the Salt Creek population

west of Hemet (the largest population within southern

California), and the two populations on the Santa Rosa

Plateau. This species also occurs at Harford Springs

County Park.

This is a species on the Additional Surveys Needs and

Procedures (Section 6.3.2) and surveys for little

mousetail will be conducted as part of the project review

process for public and private projects within the Criteria

Area where suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the MSHCP,

Volume I). Little mousetail located as a result of survey

efforts shall be conserved in accordance with procedures

described within Section 6.3.2, MSHCP, Volume 1.

Objective 1: Include within the MSHCP Conservation Area at

least 6,900 acres of suitable habitat (grassland and

playas and vernal pools within the San Jacinto

River, Mystic Lake and Salt Creek portions of the

MSHCP Conservation Area).

Objective 2: Include within the MSHCP Conservation Area at

least five of the known locations of this species,

including Harford Springs County Park on the

Gavilan Plateau and the three core locations: one

along Salt Creek west of Hemet and two on the

Santa Rosa Plateau.

Objective 3: Surveys for the little mousetail will be conducted

as part of the project review process for public and

private projects within the Criteria Area where

suitable habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the

MSHCP, Volume I). Little mousetail located as a

result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.3.2 of the MSHCP, Volume I.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along the San Jacinto River consistent

with Objective 1. Floodplain processes will be

maintained along the river in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change. A potential future flood control project

along the San Jacinto River designed and

constructed consistent with the criteria for the San

Jacinto River project presented in Section 7.0 of

the MSHCP, Volume I and with the Area Plan

Subunit guidelines for Subunit 1 of the

Lakeview/Nuevo Area Plan and Subunit 4 of the

Mead Valley Area Plan will be considered to be

consistent with this objective.

Conservation for this species will be

achieved by inclusion of at least 6,900

acres of suitable Conserved Habitat and

three core localities (the Salt Creek

population west of Hemet and the two

populations on the Santa Rosa Plateau)

within large blocks of Habitat in the

MSHCP Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring. Implementation of Objectives

4 and 5 for this species will maintain

alluvial processes (floodplain hydrology

and flooding) upon which this species

depends.

Approximately 1,370 acres of potential

Habitat for little mousetail will be

outside the MSHCP Conservation

Area. The historic populations at

March Air Reserve Base and within the

Edgemont area are likely extirpated.

The populations reported from the

vicinity of Lake Elsinore, Wildomar,

and Menifee, if still extant, are located

outside the MSHCP Conservation

Area.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and enhancing the floodplain

processes of the San Jacinto River, Salt Creek and Mystic Lake,

including intermittent flooding and periodic pooling. Particular

management emphasis will be given to preventing alteration of

hydrology and floodplain dynamics, farming, fire and fire

suppression activities, off-road vehicle use, grazing and

competition from non-native plant species.

Page 123: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-123

Objective 5: Include within the MSHCP Conservation Area the

floodplain along Salt Creek generally in its existing

condition from Warren Road to Newport Road and

the vernal pools in Upper Salt Creek west of

Hemet. Floodplain processes will be maintained in

order to provide for the distribution of the species

to shift over time as hydrologic conditions and

seed bank sources change.

long-spined spine flower

(Chorizanthe

polygonoides var.

longispina)

2 Long-spined spine flower is designated as a Group 2

species because of its fairly wide distribution within

specific soil restrictions and the presence of two Core

locations. The species is known from Temescal Canyon

area, Lake Mathews-Estelle Mountain Reserve, Harford

Springs Park, the Motte Reserve, the Gavilan Plateau,

Alberhill, French Valley, Vail Lake, Agua Tibia Mountains,

Murrieta, the southern Santa Ana Mountains, the Santa

Rosa Plateau, Skunk Hollow, the Paloma Valley, Lake

Skinner Preserve, and along the north slopes of the

Palomar Mountains. Long-spined spine flower appears to

be most prevalent in the vicinity of Lake Mathews and the

Agua Tibia Mountains.

Objective 1: Include within the MSHCP Conservation Area at

least 389,510 acres of suitable Habitat (chaparral,

coastal sage scrub and grassland) including

Altamont (190 acres), Auld (400 acres), Bosanko

(470 acres), Porterville (100 acres), and claypit

(600 acres) soils.

Objective 2: Include within the MSHCP Conservation Area at

least 32 locations of this species, including the two

Core locations at Lake Matthews and in the Agua

Tibia Mountains.

Conservation for this species will be

achieved by inclusion of at least 389,510

acres of suitable Conserved Habitat and at

least 57 known occurrences at 15

locations (including the Core localities at

Lake Mathews and the Agua Tibia

Mountains) within large blocks of Habitat

at Lake Mathews, Vail Lake, Santa Rosa

Plateau, Santa Ana Mountains, San

Jacinto Mountains and Agua Tibia

Mountains in the MSHCP Conservation

Area.

Approximately 309,020 acres will not

be included in the MSHCP

Conservation Area. Nineteen of the 55

records in the UCR database and the

herbaria at UCR and Rancho Santa

Ana Botanic Gardens will not be

conserved within the MSHCP

Conservation Area. The 19

occurrences include the following

localities: Temescal Canyon, Murrieta,

Gavilan Plateau, Alberhill, City of

Riverside, Sedco Hills, Antelope

Valley, Rancho California, and the

Santa Ana Mountains. Three of the

CNDDB occurrences at Lake Mathews

will not be conserved.

None 8 Reserve Managers will avoid or minimize adverse effects to

long-spined spine flower to the maximum extent practicable.

Reserve Managers will manage this species regarding threats to

this species, including competition with non-native grasses,

off-road vehicle use, sheep and cattle grazing, and discing.

many-stemmed dudleya

(Dudleya multicaulis)

3 Many-stemmed dudleya is designated as a Group 3

species because of its limited geographic distribution in

Riverside County and specialized Habitat requirements.

A number of populations exist within western Riverside

County; however, these are concentrated within the Santa

Ana Mountains Bioregion and western portion of the

Riverside Lowlands Bioregion, with the majority of the

populations known from the Temescal Canyon, Gavilan

Plateau, and Alberhill areas and the Santa Ana Mountains,

including the San Mateo Wilderness Area of the Cleveland

National Forest. Many-stemmed dudleya is associated

with openings in chaparral, coastal sage scrub, and

grasslands underlain by clay and cobbly clay soils of the

following series: Altamont, Auld, Bosanko, Claypit, and

Porterville.

This is a species on the Narrow Endemic Plant list

(Section 6.1.3) and surveys for many-stemmed dudleya

will be conducted as part of the project review process

Objective 1: Include within the MSHCP Conservation Area at

least 142,680 acres of suitable Habitat (chaparral,

coastal sage scrub and grassland below 700 m in

the Riverside Lowlands and Santa Ana Mountain

Bioregions) in the Plan Area, including 1,575 acres

of clay soils: 190 acres of Altamont, 210 acres of

Auld, 490 acres of Bosanko, 100 acres of Claypit

soils and 585 acres of Porterville soils.

Objective 2: Include within the MSHCP Conservation Area at

least 26 of the known occurrences of

many-stemmed dudleya, including the

occurrences at Estelle Mountain, Temescal

Canyon, the Santa Ana Mountains, Gavilan Hills,

Alberhill Creek, and Prado Basin.

Objective 3: Surveys for many-stemmed dudleya will be

conducted as part of the project review process for

public and private projects within the Narrow

Conservation for this species will be

achieved by inclusion of at least 142,680

acres of suitable Conserved Habitat and

26 known localities (Estelle Mountain,

Temescal Canyon, the Santa Ana

Mountains, Gavilan Hills, Alberhill Creek,

Prado Basin) within large blocks of Habitat

in the MSHCP Conservation Area. In

addition, implementation of Objective 3 for

this species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 185,710 acres (53

percent) of potential Habitat and 17

occurrences (Mira Loma, foothills of

the Santa Ana Mountains, Coronita,

east of Lake Elsinore and near

Alberhill) within the Plan Area will not

be conserved; however, all of the Core

locations will be included in the

MSHCP Conservation Area. Portions

of additional populations will be

addressed through application of the

Narrow Endemics policy described in

Section 6.1.3 of the MSHCP, Volume

I.

Yes, see Section

6.1.3 (Protection

o f N a r r o w

Endemic Plant

Species)

8 Reserve Managers will avoid or minimize adverse effects to the

many-stemmed dudleya to the maximum extent practicable.

Page 124: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-124

for public and private projects within the Narrow Endemic

Plant Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species Survey Area

Map, Figure 6-1 of the MSHCP, Volume I).

Many-stemmed dudleya located as a result of survey

efforts shall be conserved in accordance with procedures

described within Section 6.1.3, MSHCP, Volume 1.

This species is designated as a Forest Service Sensitive

Species which can be managed at the site specific level.

Forest Service Sensitive Species are protected through

the implementation of Forest Plans and the biological

evaluation (BE) process, which considers the potential

effects of Forest Service activities on these species.

Endemic Plant Species survey area where suitable

Habitat is present (see Narrow Endemic Plant

Species Survey Area Map, Figure 6-1 of the

MSHCP, Volume I). Many-stemmed dudleya

located as a result of survey efforts shall be

conserved in accordance with procedures

described within Section 6.1.3, MSHCP, Volume I.

Mojave tarplant

(Deinandra mohavensis)

(formerly known as

Hemizonia mohavensis)

2 Mojave tarplant is designated as a Group 2 species

because it is restricted to the San Jacinto Mountains,

primarily within USFS lands. Within the Plan Area, Mojave

tarplant is restricted to low sand bars in river beds, along

stream channels and in ephemeral grassy areas in

riparian scrub and chaparral at elevations between 850 m

to 1,575 m in the San Jacinto Mountains Bioregion.

The California Natural Diversity Database (CNDDB)

contains three occurrences for this species, all located

along Highway 243 north of Pine Cove within the San

Jacinto Mountains and the University of California,

Riverside (UCR) GIS database and UCR herbarium

contain five occurrences, three in the San Jacinto

Mountains, one near the San Jacinto River east of Hemet

and one northeast of Vail Lake (the Vail Lake record is

suspect). Seven of the eight known occurrences are

located within the MSHCP Conservation Area, although

two of the UCR herbarium records and two of the CNDDB

records appear to be the same locality.

Although the existing records are not believed to be

indicative of the distribution of this species, the MSHCP

Conservation Area configuration is expected to provide

long-term Conservation of the species. Incidental Take of

this species is not included in this permit until

Objective 1: Include within the MSHCP Conservation Area at

least 80,160 acres of suitable Habitat (chaparral,

riparian scrub, and woodland/forest between 850

and 1,575 m within the San Jacinto Mountains

Bioregion).

Objective 2: Include within the MSHCP Conservation Area at

least five of the known localities (represented by

seven records) within the San Jacinto Mountains

and Foothills and northeast of Vail Lake.

Objective 3: Include within the MSHCP Conservation Area at

least four localities (locality in this sense is not

smaller than one quarter section) occupying at

least 100 acres.

Conservation for this species will be

achieved by inclusion of at least 80,160

acres of suitable Conserved Habitat and

five known localities (six records at four

localities within the San Jacinto Mountains

and Foothills and one record northeast of

Vail Lake) within large blocks of Habitat in

the MSHCP Conservation Area. In

addition, implementation of Objective 3 for

this species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 27,850 acres (26

percent) of potential Habitat for Mojave

tarplant will not be conserved.

According to the University of

California, Riverside, GIS database, the

mapped location along the Banning

Idyllwild Panoramic Highway is

located on private lands and will not

be conserved. According to the

CNDDB, an occurrence within the San

Jacinto Mountains is located outside

of the MSHCP Conservation Area

(road right-of-way)and will not be

conserved.

None 8 Reserve Managers will avoid or minimize adverse effects to this

species to the maximum extent practicable. Reserve Managers

will manage known and future occurrences of this species

where flood control and grazing activities are allowed or

proposed.

Page 125: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-125

Conservation of the species in the Plan Area has been

demonstrated by reaching Objective 3.

mud nama

(Nama stenocarpum)

3 Mud nama is designated as a Group 3 species because

of its limited geographic distribution and specialized

Habitat requirements and management requirements for

hydrology. This species occurs within muddy

embankments of marshes and swamps, and within lake

margins and riverbanks. Only three occurrences of this

species are known from the Plan Area: two occurrences

along the San Jacinto River near Gilman Springs Road

and one occurrence in the USGS 7.5 minute El Casco

quadrangle.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for mud nama

will be conducted as part of the project review process

for public and private projects within the Criteria Area

where suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the MSHCP,

Volume I). Mud nama located as a result of survey efforts

shall be conserved in accordance with procedures

described within Section 6.3.2, MSHCP, Volume 1.

Objective 1: Include within the MSHCP Conservation Area at

least 7,050 acres of suitable habitat (meadows/

marshes and playa/vernal pools between 5 and

500 m within the Riverside Lowlands Bioregion).

Objective 2: Include within the MSHCP Conservation Area two

of the three known occurrences of this species

along the San Jacinto River near Gilman Springs

Road.

Objective 3: Surveys for mud nama will be conducted as part of

the project review process for public and private

projects within the Criteria Area where suitable

habitat is present (see Criteria Area Species Survey

Area Map, Figure 6-2 of the MSHCP, Volume I).

Mud nama located as a result of survey efforts

shall be conserved in accordance with procedures

described within Section 6.3.2 of the MSHCP,

Volume I.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along the San Jacinto River consistent

with Objective 1. Floodplain processes will be

maintained along the river in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change. A potential future flood control project

along the San Jacinto River designed and

constructed consistent with the criteria for the San

Jacinto River project presented in Section 7.0 of

the MSHCP, Volume I and with the Area Plan

Subunit guidelines for Subunit 1 of the

Lakeview/Nuevo Area Plan and Subunit 4 of the

Mead Valley Area Plan will be considered to be

consistent with this objective.

Conservation for this species will be

achieved by inclusion of at least 7,050

acres of suitable Conserved Habitat and

two occurrences. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring. Implementation of Objective 4

for this species will maintain alluvial

processes (e.g., floodplain hydrology)

upon which this species depends.

Approximately 1,220 acres of potential

Habitat in the Plan Area will not be

conserved. The exact location of the

occurrence noted in the USGS 7.5

minute El Casco quadrangle is not

known; therefore, it is not known

whether this location will be conserved

within the MSHCP Conservation Area

or not.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 General Management Measure 4.

Page 126: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-126

Munz’s mariposa lily

(Calochortus palmeri var.

munzii)

3 Munz's mariposa lily is designated as a Group 3 species

because it is restricted to the San Jacinto Mountains,

primarily within USFS lands. Within the Plan Area, Munz's

mariposa lily is restricted to lower montane coniferous

forest (yellow pine forest), chaparral and meadows at

elevations between 900 m and 1,640 m within the San

Jacinto Mountains Bioregion. Occurrences are known

from Garner Valley along both sides of Highway 74, off

Forbes Ranch Road and near Mountain Center. CNNDB

contains three mapped occurrences in the San Jacinto

Mountains, two of which are located within existing

Public/Quasi-Public Lands.

This species is designated as a Forest Service Sensitive

Species which can be managed at the site specific level.

Forest Service Sensitive Species are protected through

the implementation of Forest Plans and the biological

evaluation (BE) process, which considers the potential

effects of Forest Service activities on these species.

This is a species on the Narrow Endemic Plant list

(Section 6.1.3) and surveys for Munz's mariposa lily will

be conducted as part of the project review process for

public and private projects within the Narrow Endemic

Plant Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species Survey Area

Map, Figure 6-1 of the MSHCP, Volume I). Munz's

mariposa lily located as a result of survey efforts shall be

conserved in accordance with procedures described

within Section 6.1.3, MSHCP, Volume 1.

Objective 1: Include within the MSHCP Conservation Area

33,470 acres of suitable Habitat (chaparral,

meadow, and montane coniferous forest between

900 and 1,640 m within the Narrow Endemic

Survey Area of the San Jacinto Mountains

Bioregion).

Objective 2: Include within the MSHCP Conservation Area 10 of

the known locations within the San Jacinto

Mountains, including Garner Valley.

Objective 3: Surveys for Munz's mariposa lily will be conducted

as part of the project review process for public and

private projects within the Narrow Endemic Plant

Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species

Survey Area Map, Figure 6-1 of the MSHCP,

Volume I). Munz's mariposa lily located as a result

of survey efforts shall be conserved in accordance

with procedures described within Section 6.1.3 of

the MSHCP, Volume I.

Conservation for this species will be

achieved by inclusion of at least 33,470

acres of suitable Conserved Habitat and

10 known localities within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring.

Approximately 9,880 acres (23

percent) of potential Habitat for Munz's

mariposa lily will not be included in the

MSHCP Conservation Area. Four of

the 14 localities will not be conserved

within the MSHCP Conservation Area.

It is important to note, however, that

this potential Habitat and these

mapped location are included within

the Narrow Endemic Plant Species

survey area and Conservation of this

potential Habitat and known locations

will be addressed in accordance with

the procedures presented in the

Narrow Endemic Plant Species policy

described in Section 6.1.3 of the

MSHCP, Volume I.

Yes, see Section

6.1.3 (Protection

of Narrow

Endemic Plant

Species)

8 Reserve Managers will avoid or minimize adverse effects to

Munz's mariposa lily to the maximum extent practicable.

Particular management emphasis will be given to competition

with non-native species, sheep and cattle grazing, off-road

vehicle use, fire and fire suppression activities and hydrology

altering activities.

Munz’s onion

(Allium munzii)

3 Munz's onion is designated as a Group 3 species because

of its limited geographic distribution in Riverside County

and specialized Habitat requirements. The species has a

scattered distribution (Estelle Mountain and the Gavilan

Plateau at Harford Springs Park southeast through the

hills north of Lake Elsinore, to the Paloma Valley, Skunk

Hollow, and Lake Skinner area) and is associated with

clay and cobbly clay soils which include the following

series: Altamont, Auld, Bosanko, Claypit, and Porterville.

Objective 1: Include within the MSHCP Conservation Area at

least 21,260 acres of suitable Habitat (grassland,

coastal sage scrub, chaparral and peninsular

juniper woodland between 300 and 1,000 m in the

Riverside Lowlands and Santa Ana Mountains

Bioregions). This will include at least 2,070 acres

of clay soils: Altamont (190 acres), Auld (250

acres), Bosanko (600 acres), Claypit (100 acres)

and Porterville (930 acres) soils underlying the

suitable Habitat.

Conservation for this species will be

achieved by inclusion of at least 21,260

acres of suitable Conserved Habitat and

15 known localities within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring.

Approximately 15,825 acres of

potential Habitat in the Plan Area will

not be conserved. Fifty percent of the

core locations at Harford Springs and

Estelle Mountain occur on private

lands but will be conserved in

accordance with the Narrow Endemics

policy described in Section 6.1.3 of

the MSHCP, Volume I. Two

populations (EO 5 and EO 16) are

Yes, see Section

6.1.3 (Protection

of Narrow

Endemic Plant

Species)

8 Reserve Managers will manage known and future occurrences

of this species for competition with non-native plant species,

clay mining, off-road vehicle use and discing activities.

Page 127: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-127

This is a species on the Narrow Endemics Plant list

(Section 6.1.3) and surveys for Munz's onion will be

conducted as part of the project review process for public

and private projects within the Narrow Endemic Plant

Species survey area where suitable Habitat is present

(see Narrow Endemic Plant Species Survey Area Map,

Figure 6-1 of the MSHCP, Volume 1). Munz's onion

located as a result of survey efforts shall be conserved in

accordance with procedures described within Section

6.1.3, MSHCP, Volume 1.

Objective 2: Include within the MSHCP Conservation Area at

least 13 localities within Temescal Valley and the

southwestern portion of Plan Area, including the

following Core Areas: Harford Springs Park,

privately owned EO 5 population in Temescal

Valley, Alberhill, DiPalma Rd, Estelle Mountain,

Domenigoni Hills, Lake Skinner, Bachelor

Mountain, Elsinore Peak, Scott Road, North Peak,

and northeast of Alberhill (EO 16).

Objective 3: Surveys for the Munz's onion will be conducted as

part of the project review process for public and

private projects within the Narrow Endemic Plant

Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species

Survey Area Map, Figure 6-1 of the MSHCP,

Volume I). Munz's onion located as a result of

survey efforts shall be conserved in accordance

with procedures described within Section 6.1.3 of

the MSHCP, Volume I.

completely outside the MSHCP

Conservation Area but will be

conserved in accordance with the

Narrow Endemics policy.

Nevin’s barberry

(Berberis nevinii)

3 Nevin's barberry is designated as a Group 3 species

because of its narrowly defined geographic distribution

(primarily the San Timoteo/Badlands area, Vail Lake and

the Agua Tibia Mountains) and dependence on natural fire

regimes.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for Nevin's

barberry will be conducted as part of the project review

process for public and private projects within the Criteria

Area where suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the MSHCP,

Volume I). Nevin's barberry located as a result of survey

efforts shall be conserved in accordance with procedures

described within Section 6.3.2, MSHCP, Volume 1.

Objective 1: Include within the MSHCP Conservation Area at

least 8,000 acres of suitable Habitat (chaparral and

Riversidean alluvial fan sage scrub between 300

and 659 m in the Vail Lake area as depicted on

Figure 6-1, the Narrow Endemic Plant Species

Survey Area and the Agua Tibia Mountains

Bioregion).

Objective 2: Include within the MSHCP Conservation Area the

known locations for Nevin's barberry in the San

Timoteo/Badlands area, Jurupa Hills and Agua

Tibia/Vail Lake area.

Objective 3: Surveys for this species will be conducted as part

of the project review process for public and private

projects within the Criteria Area where suitable

Habitat is present (see Criteria Area Species

Survey Area Map, Figure 6-2 of the MSHCP,

Volume 1). Nevin's barberry located as a result of

survey efforts shall be conserved in accordance

with procedures described within Section 6.3.2,

MSHCP, Volume 1.

Conservation for this species will be

achieved by inclusion of at least 8,000

acres of suitable Conserved Habitat and

49 known localities within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring.

Approximately 3,990 acres (33

percent) of potential Habitat for Nevin's

barberry will be outside the MSHCP

Conservation Area. A lone individual

reported from a rocky outcrop in a

residential area in the city of Riverside

(U.S. Fish and Wildlife Service 1998)

is presumed to be impacted. The

historic (1927) Aguanga location could

be impacted. The Temecula location

needs to be verified (CNDDB) and

could be impacted

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 Reserve Managers will manage the known and future

occurrences of this species for competition with non-native

species, flood control activities and alteration of the natural fire

regime.

Page 128: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-128

ocellated Humboldt lily

(Lilium humboldtii ssp.

ocellatum)

2 Ocellated Humboldt lily is designated as a Group 2

species. The known occurrences are concentrated within

the Santa Ana and Agua Tibia mountains, primarily within

USFS Lands within the Plan Area. Ocellated Humboldt lily

is associated with riparian corridors in lower montane

coniferous forest and coastal chaparral below 1,691 m

(5,500 feet) within the Agua Tibia and Santa Ana

Mountains Bioregions. This species typically occurs on

lower stream benches but can also occur on shaded, dry

slopes, beneath a dense coniferous canopy and

cismontane oak woodland (Boyd and Banks 1995; CNPS

2001).

Most populations are concentrated in the Santa Ana

Mountains or along the north slope of the Palomar

Mountains (Reveal and Hardham 1989; Boyd and Banks

1995; Boyd et al. 1995; Banks 1999). The Forest Service

Assessment states that occurrences of this plant are

found on all four southern California National Forests.

Plants in the Cleveland and San Bernardino Forests are

found in low-elevation riparian areas and seeps of

chaparral canyons.

Objective 1: Include within the MSHCP Conservation Area at

least 7,700 acres of suitable Habitat (woodland/

forest below 1,691 m within the Santa Ana

Mountains and Agua Tibia Mountains Bioregions).

Objective 2: Include within the MSHCP Conservation Area at

least four of the known locations at Arroyo Seco

Canyon in the Agua Tibia Wilderness Area and

Fisherman's Camp in Tenaja Canyon and the

historic occurrences known from Castro Canyon,

Horsethief Canyon, Elsinore Mountains; and

Corona between Tin Mine Canyon and Santiago

Peak, Skyline Drive populations.

Conservation for this species will be

achieved by inclusion of at least 7,700

acres of suitable Conserved Habitat and at

least four known localities within large

blocks of Habitat on USFS lands within the

Santa Ana Mountains and the Agua Tibia

Mountains in the MSHCP Conservation

Area.

Approximately 3,820 acres (33

percent) of potential Habitat for

ocellated Humboldt lily will not be

included in the MSHCP Conservation

Area. The two historic (1955 and

1966) localities in Horsethief Canyon

and near Corona, will be located

outside the MSHCP Conservation

Area.

None 8 Reserve Managers will manage the known and future

occurrences of this species for the potential for collection by

humans and proximity of existing and planned trail systems.

Orcutt’s brodiaea

(Brodiaea orcuttii)

3 Orcutt's brodiaea is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for hydrology. Within the Plan Area, this

species is restricted to ephemeral wetlands on the Santa

Rosa Plateau, at Miller Mountain within the San Mateo

Wilderness Area and along the San Jacinto River south of

Perris. The Miller Mountain population of Orcutt's

brodiaea occurs with thread-leaved brodiaea at this

location.

This species is designated as a Forest Service Sensitive

Species which can be managed at the site specific level.

Forest Service Sensitive Species are protected through

the implementation of Forest Plans and the biological

evaluation (BE) process, which considers the potential

effects of Forest Service activities on these species.

Objective 1: Include within the MSHCP Conservation Area one

occurrence at Miller Mountain within the San

Mateo Wilderness Area; a complex of about five

occurrences on the Mesa de Burro, Mesa de

Colorado, and Mesa de la Punta on the Santa Rosa

Plateau within the Santa Rosa Plateau Preserve;

and one occurrence along the San Jacinto River.

Objective 2: Include within the MSHCP Conservation Area the

watershed of the vernal pool complexes at the

Santa Rosa Plateau, at Miller Mountain and along

the San Jacinto River in order to maintain

hydrologic conditions.

Conservation for this species will be

achieved by inclusion of suitable

Conserved Habitat and three known

localities (including watershed) within the

MSHCP Conservation Area.

Two records from 1960, located in the

vicinity of Murrieta Hot Springs and

west of the Santa Rosa Plateau, will

not be conserved in the MSHCP

Conservation Area.

None 8 General Management Measure 4. Reserve Managers will

maintain the hydrological processes of the watersheds

supporting the occupied vernal pools at the Santa Rosa Plateau,

the San Jacinto River and the San Mateo Wilderness Area.

Page 129: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-129

Palmer’s grapplinghook

(Harpagonella palmeri)

2 Palmer's grapplinghook is designated as a Group 2

species because it is known from several Core Areas and

is restricted to particular soils series within the Plan Area.

Although the species has a scattered distribution,

locations appear to be concentrated in the western

portion of the Plan Area. Palmer's grapplinghook is

associated with clay and cobbly clay soils in chaparral,

coastal sage scrub, valley and foothill grasslands (Reiser

2001), and scrub oak woodland (CNDDB) below 1500

feet (500 m). Within the Plan Area, populations are

known from the Riverside Lowlands, San Jacinto Foothill,

and Santa Ana Mountains Bioregions.

Objective 1: Include within the MSHCP Conservation Area at

least 90,490 acres of suitable Habitat (chaparral,

coastal sage scrub, and grassland below 500 m in

the Riverside Lowlands, Santa Ana Mountains and

San Jacinto Foothills Bioregions) in the Plan Area,

including 2,130 acres of clay soils: 190 acres of

Altamont, 350 acres of Auld, 570 acres of

Bosanko, 100 acres of Claypit soils and 920 acres

of Porterville soils.

Objective 2: Include within the MSHCP Conservation Area at

least 24 of the known occurrences of this species

at Temescal Wash, Alberhill, Lake Elsinore,

Antelope Valley, Bachelor Mountain, Vail Lake,

Lake Mathews, Harford Springs Park, Cleveland

National Forest, Skunk Hollow, Lake Skinner and

Vail Lake.

Conservation for this species will be

achieved by inclusion of at least 90,490

acres of suitable Conserved Habitat and

58 occurrences at 13 localities within

large blocks of Habitat (Vail Lake, Lake

Matthews, Lake Skinner, Antelope Valley,

Temescal Canyon, and the Cleveland

National Forest) in the MSHCP

Conservation Area.

Approximately 131,300 acres of

potential Habitat for Palmer's

grapplinghook will not be conserved in

the MSHCP Conservation Area. Of the

84 occurrences in the UCR database

and the herbarium records, 28 will not

be conserved, including occurrences

in the vicinity of Alberhill, Hemet Lake,

Paloma Valley, Murrietta Hot Springs,

Gavilan Plateau, El Cerrito, Santa Ana

Mountains, Lake Elsinore, Temescal

Canyon, Gavilan Hills, and Vail Lake.

None 8 Reserve Manager will avoid or minimize adverse effects to

Palmer’s grapplinghook to the maximum extent practicable.

Reserve Managers will manage known and future occurrences

of this species for competition with non-native species, fire and

fire suppression, farming, clay mining and grazing.

Palomar monkeyflower

(Mimulus diffusus)

2 Palomar monkeyflower is designated as a Group 2

species because although this species has a fairly

scattered distribution (San Jacinto Mountains along

Highways 74 and 243, the vicinity of Sage, the Santa

Rosa Plateau, French Valley north of Lake Skinner and

east of Lake Skinner), the known occurrences are

concentrated within the Santa Ana, Agua Tibia and San

Jacinto Mountains, primarily within USFS Lands. Within

the Plan Area, Palomar monkeyflower is restricted to

chaparral and montane coniferous forest at elevations

between 1,500 m to 2,000 m.

Objective 1: Include within the MSHCP Conservation Area at

least 23,800 acres of suitable Habitat (chaparral

and montane coniferous forest between 1,500 and

2,000 m within the Agua Tibia, San Jacinto and

Santa Ana Mountains Bioregions).

Objective 2: Include within the MSHCP Conservation Area at

least 18 of the known locations on the Santa Rosa

Plateau; in the vicinity of Sage; French Valley; east

of Lake Skinner; and in the San Jacinto, Agua Tibia

and Santa Ana Mountains.

Conservation for this species will be

achieved by inclusion of at least 23,800

acres of suitable Conserved Habitat and

18 known localities within large blocks of

Habitat (on the Santa Rosa Plateau; in the

vicinity of Sage; French Valley; east of

Lake Skinner; and in the San Jacinto, Agua

Tibia and Santa Ana mountains) in the

MSHCP Conservation Area.

Approximately 8,940 acres of (27

percent) the potential Habitat for

Palomar monkeyflower will not be

included in the MSHCP Conservation

Area. Of the 26 known locations (29

occurrences),11 of the mapped

locations (six locations in the San

Jacinto Mountains, one location in the

Santa Ana Mountains, and four

locations in the vicinity of Sage) are

located outside of the MSHCP

Conservation Area.

None 8 Reserve Managers will avoid or minimize adverse effects to

Palomar monkeyflower to the maximum extent practicable.

Reserve Managers will manage known and future occurrences

of this species for trampling and trail maintenance activities

where trails, roads and transmitting equipment are existing or

proposed.

Parish’s brittlescale

(Atriplex parishii)

3 Parish's brittlescale is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for floodplain processes. This species is

primarily restricted to the alkali floodplains of Salt Creek

in association with Willows, Domino and Traver soils.

Parish's brittlescale occurs as three populations within the

upper Salt Creek area west of Hemet. Although no

current populations are known from the lower and middle

segments of the San Jacinto River, or Mystic Lake and

the San Jacinto Wildlife Areas, these areas support

suitable Habitat and historical localities imply that these

Objective 1: Include within the MSHCP Conservation Area at

least 6,900 acres of suitable habitat (grassland and

playas and vernal pools within the San Jacinto

River, Mystic Lake and Salt Creek portions of the

MSHCP Conservation Area).

Objective 2: Include within the MSHCP Conservation Area the

three known populations of the Parish's brittlescale

in the upper Salt Creek drainage west of Hemet.

Objective 3: Surveys for the Parish's brittlescale will be

conducted as part of the project review process for

Conservation for this species will be

achieved by inclusion of at least 6,900

acres of suitable Conserved Habitat and

the core locality at Salt Creek and potential

Habitat along the San Jacinto River within

large blocks of Habitat in the MSHCP

Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 1,370 acres (17

percent) of potential Habitat for

Parish's brittlescale will be outside the

MSHCP Conservation Area. The

Winchester Valley locality, if still

extant, will not be conserved in the

MSHCP Conservation Area.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 General Management Measure 4. Ensure Habitat support

functions within the MSHCP Conservation Area by maintaining

and enhancing the floodplain processes of the San Jacinto River

and upper Salt Creek, including intermittent flooding and periodic

pooling. Particular management emphasis will be given to

preventing alteration of hydrology and floodplain dynamics,

farming, fire and fire suppression activities, off-road vehicle use,

grazing and competition from non-native plant species.

Page 130: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-130

areas may also be key to the species survival. Records

of this species are also known from Winchester Valley.

The status of this locality is uncertain, however.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for Parish's

brittlescale will be conducted as part of the project review

process for public and private projects within the Criteria

Area where suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the MSHCP,

Volume I). Parish's brittlescale located as a result of

survey efforts shall be conserved in accordance with

procedures described within Section 6.3.2, MSHCP,

Volume 1.

public and private projects within the Criteria Area

where suitable habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the

MSHCP, Volume 1). Parish's brittlescale located

as a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.3.2 of the MSHCP, Volume I.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along the San Jacinto River consistent

with Objective 1. Floodplain processes will be

maintained along the river in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change. A potential future flood control project

along the San Jacinto River designed and

constructed consistent with the criteria for the San

Jacinto River project presented in Section 7.0 of

the MSHCP, Volume I and with the Area Plan

Subunit guidelines for Subunit 1 of the

Lakeview/Nuevo Area Plan and Subunit 4 of the

Mead Valley Area Plan will be considered to be

consistent with this objective.

Objective 5: Include within the MSHCP Conservation Area the

floodplain along Salt Creek generally in its existing

condition from Warren Road to Newport Road and

the vernal pools in Upper Salt Creek west of

Hemet. Floodplain processes will be maintained

within the linkage in order to provide for the

distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change.

Parish’s meadowfoam

(Limnanthes gracilis var.

parishii)

3 Parish's meadowfoam is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for hydrology. Within the Plan Area, this

species is restricted to ephemeral wetlands on the Santa

Rosa Plateau.

Objective 1: Include within the MSHCP Conservation Area at

least one known location on the Santa Rosa

Plateau.

Objective 2: Include within the MSHCP Conservation Area the

watershed of the vernal pool complex on the Santa

Conservation for this species will be

achieved by inclusion of suitable

Conserved Habitat and the core locality

and associated watershed within a large

block of Habitat in the MSHCP

Conservation Area.

No known populations of Parish's

meadowfoam will be outside the

MSHCP Conservation Area. However,

suitable Habitat for this species is

present outside the MSHCP

Conservation Area in ephemeral

None 8 General Management Measure 4. Reserve managers will

maintain the watershed and hydrologic conditions of the known

vernal pool complexes on the Santa Rosa Plateau.

Page 131: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-131

Rosa Plateau in order to maintain hydrologic

conditions.

wetlands and mima mounds in forest

glades and mountain areas. The level

of potential Take in these areas

outside the MSHCP Conservation Area

cannot be determined at this time.

Parry’s spine flower

(Chorizanthe parryi var.

parryi)

2 Parry's spine flower is designated as a Group 2 species

because although it has a patchy distribution within the

Plan Area (Vail Lake, Gilman Hot Springs, Wilson Valley,

Juniper Flats, Rawson Canyon, Reche Canyon, Antelope

Valley, the Santa Rosa Hills, Cherry Valley, City of

Banning, Moreno Valley, near the intersection of Central

Avenue and Indiana Avenue, Gavilan Plateau, El Cerrito,

Quail Valley, Wolf Valley, Aguanga Valley, Diamond Valley

Lake, Valle Vista, Black Mountain, Gavilan Peak, in the

vicinity of Lake Elsinore, City of Riverside, and near

Highway 91 in the vicinity of Home Gardens) this species

has specialized Habitat requirements and management

requirements for floodplain processes. This species is

primarily restricted to alluvial floodplains and alluvial

chaparral and scrub of Western Riverside County,

specifically the Santa Ana, Agua Tibia (Palomar), San

Bernardino and San Jacinto Mountains.

Within the Plan Area, the distribution of Parry's spine

flower is patchy and poorly understood. The existing

records are not believed to be indicative of the distribution

of this species although the MSHCP Conservation Area

configuration is expected to provide long-term

Conservation of the species. Incidental Take of this

species is not included in this permit until Conservation of

the species in the Plan Area has been demonstrated by

reaching Objective 3.

This species is designated as a Forest Service Sensitive

Species which can be managed at the site specific level.

Forest Service Sensitive Species are protected through

the implementation of Forest Plans and the biological

evaluation (BE) process, which considers the potential

effects of Forest Service activities on these species.

Objective 1: Include within the MSHCP Conservation Area

218,630 acres of suitable Habitat (chaparral and

alluvial fan sage scrub between 100 and 1,300 m

in the San Bernardino, Santa Ana, Agua Tibia and

San Jacinto Mountains, the Riverside Lowlands,

Desert Transition and San Jacinto Hills Bioregions).

Objective 2: Include within the MSHCP Conservation Area

twenty (20) occurrences of Parry's spine flower,

including locations throughout the Vail Lake area

and in the vicinity of Lake Mathews, Gavilan Hills,

Antelope Valley, Rawson Canyon, Santa Rosa Hills,

Reche Canyon, Wilson Valley, Juniper Flats,

Gilman Hot Springs Road and Diamond Valley

Lake.

Objective 3: Within the MSHCP Conservation Area, confirm 10

localities (locality in this sense is not smaller than

one quarter section) with at least 1,000 individuals

(unless a smaller population has been

demonstrated to be self-sustaining).

Conservation for this species will be

achieved by inclusion of at least 218,630

acres of suitable Conserved Habitat and

17 known occurrences (at Lake Matthews,

Gavilan Hills, Antelope Valley, Rawson

Canyon, Santa Rosa Hills, Reche Canyon,

Wilson Valley, Juniper Flats, Gilman Hot

Springs Road, Vail Lake, and Diamond

Valley Lake) within large blocks of Habitat

in the MSHCP Conservation Area. In

addition, implementation of Objective 3 for

this species will provide new data to guide

Reserve Assembly, management and

monitoring.

Within the CNDDB, eight of the 19

mapped locations are located outside

of the MSHCP Conservation Area.

These locations occur at Gavilan Peak,

in the vicinity of Lake Elsinore,

Diamond Valley Lake, City of

Riverside, and near Highway 91 in the

vicinity of Home Gardens. Within the

UCR database and herbarium records,

24 of the 40 mapped locations occur

outside the MSHCP Conservation

Area. These locations occur in the

vicinity of Cherry Valley, Banning,

Beaumont, Hemet, Moreno Valley, City

of Riverside, Gavilan Plateau,

Murrieta, Winchester, east of State

Street, and Highgrove. Approximately

127,100 acres of potential Habitat for

Parry's spine flower will be outside the

MSHCP Conservation Area. The City

of Riverside (1903, 1905) and the City

of Banning (1903) records are historic

occurrences and should be verified.

None 8 Reserve Managers will avoid or minimize adverse effects to

Parry's spine flower to the maximum extent practicable.

Particular management emphasis will be given to the potential

for flood control and mining activities.

Payson’s jewelflower

(Caulanthus simulans)

1 Payson's jewelflower is designated as a Group 1 species

because it has a widespread distribution within the

Objective 1: Include within the MSHCP Conservation Area at

least 94,430 acres of suitable Habitat (chaparral,

Conservation for this species will be

achieved by inclusion of at least 94,430

Approximately 46,380 acres of

potential Habitat will not be conserved.

None 8 General Management Measure 1.

Page 132: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-132

southeastern portion of the Plan Area and within suitable

Habitat. Payson's jewelflower is known from Aguanga,

Billy Goat Mountain, Lewis Valley, and Tule Valley.

Potential Habitat for Payson's jewelflower includes

peninsular juniper woodland and scrub, chaparral and

coastal sage scrub between 400 and 2,200 m. This

species is dependent on disturbance (e.g., scoured areas

along stream courses, recently burned areas, etc.).

coastal sage scrub and peninsular juniper

woodland and scrub between 400 and 2,200 m).

acres of suitable Conserved Habitat and

four known localities (Aguanga, Billygoat

Mountain, Lewis Valley, and Tule Valley)

within large blocks of Habitat in the

MSHCP Conservation Area.

Of the six UCR database and UCR

herbarium records for this species in

the southeastern portion of the Plan

Area, one is located outside the

MSHCP Conservation Area in the

vicinity of Aguanga.

peninsular spine flower

(Chorizanthe leptotheca)

2 Peninsular spine flower is designated as a Group 2

species because although it has a patchy distribution

within the Plan Area (Temescal Canyon, Aguanga Valley

[Temecula River Valley], Garner Valley, Gavilan Plateau,

Hemet, Hemet Lake [UCR database], Agua Tibia

Wilderness Area, Kolb Creek at Highway 79, Vail Lake,

Good Hope, Valle Vista and Cahuilla) it has specialized

Habitat requirements. This species is found in open

Habitats, typically on granitic-derived or alluvial surfaces

between 300 and 1,900 m in elevation. At higher

elevations, this species appears to be associated with

chaparral, sage scrub and coniferous forest openings and

at lower elevations it is typically associated with old

formation alluvial benches.

Many of the occurrence data for this species are old, with

seven of the 17 occurrences dating from 1922 to 1967.

Although it is found on USFS lands, peninsular spine

flower is not primarily a Forest Service Species; 27

percent of the potential Habitat for this species is located

in the Criteria Area. Therefore, Incidental Take of this

species is not included in this permit until Conservation of

the species in the Plan Area has been demonstrated by

reaching Objective 2.

Objective 1: Include within the MSHCP Conservation Area

206,010 acres of suitable Habitat (chaparral,

coastal sage scrub, and montane coniferous forest

between 300 and 1,900 m within the Vail Lake

area, the Agua Tibia Wilderness area, the San

Bernardino Mountains, the San Jacinto Mountains

and the Santa Ana Mountains Bioregions).

Objective 2: Within the MSHCP Conservation Area, confirm 10

localities (locality in this sense is not smaller than

one quarter section) with at least 1,000 individuals

(unless a smaller population has been

demonstrated to be self-sustaining).

Conservation for this species will be

achieved by inclusion of at least 206,010

acres of suitable Conserved Habitat and

five occurrences at three known localities

(Aguanga Valley, Kolb Creek, and

Temescal Canyon) within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 2

for this species will provide new data to

guide Reserve Assembly, management

and monitoring.

Of the 17 UCR database and

herbarium records, 12 occurrences

will not be conserved within the

MSHCP Conservation Area. These

occurrences include the Valle Vista,

Garner Valley (historic, requires

verification), Hemet Lake, Gavilan

Plateau, Bautista Canyon, Reche

Canyon, Hemet, and Temescal

Canyon localities. Of the seven

unmapped locations, three locations

will not be conserved. Those

individuals occurring at Hemet Lake,

Good Hope and Cahuilla are located

outside of the MSHCP Conservation

Area and will not be conserved within

the MSHCP Plan Area. A total of

78,150 acres of potential Habitat for

the peninsular spine flower will be

outside the MSHCP Conservation

Area.

None 8 Reserve Managers will avoid or minimize adverse effects to

peninsular spine flower to the maximum extent practicable.

Particular management emphasis will be given to competition

from non-native plant species.

Plummer’s mariposa lily

(Calochortus plummerae)

2 Plummer's mariposa lily is designated as a Group 2

species because it is restricted to locations within the San

Jacinto Mountains and Foothills and San Bernardino

Mountains, primarily within USFS lands. Within the Plan

Area, Plummer's mariposa lily is restricted to coastal

scrub, chaparral, cismontane woodland, lower montane

coniferous forest and valley and foothill grasslands at

elevations from 90 m to 1,610 m within the San Jacinto

Mountains and Foothills and San Bernardino Mountains

Objective 1: Include within the MSHCP Conservation Area at

least 167,580 acres of suitable Habitat (chaparral,

coastal sage scrub, montane coniferous forest,

and woodland/forest between 90 and 1,610 m

within the San Jacinto Mountains and Foothills and

San Bernardino Mountain Bioregions).

Objective 2: Include within the MSHCP Conservation Area at

least eight of the known occurrences (near Hemet

Conservation for this species will be

achieved by inclusion of at least 167,580

acres of suitable Conserved Habitat and

eight known localities within large blocks

of Habitat in the MSHCP Conservation

Area. In addition, implementation of

Objective 3 for this species will provide

new data to guide Reserve Assembly,

management and monitoring.

Approximately 64,630 acres (28

percent) of potential Habitat for

Plummer's mariposa lily will not be

included in the MSHCP Conservation

Area. Eight of the 17 known records

of Plummer's mariposa lily will not be

conserved. The historic locations near

Banning (1926), two miles south of

Calimesa (1978), in the Badlands

None 8 Reserve Managers will avoid or minimize adverse effects to

Plummer's mariposa lily to the maximum extent practicable.

Page 133: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-133

Bioregions.

This plant is designated as a Forest Service Sensitive

Species. The Assessment indicates that it falls under the

"site specific" category, which means that it is an

organism requiring species-level Conservation action to

ensure its persistence in the Plan Area.

Within the Plan Area, the Plummer's mariposa lily is

restricted to the eastern slopes and foothills of the San

Jacinto and San Bernardino Mountains. The existing

records are not believed to be indicative of the distribution

of this species although the MSHCP Conservation Area

configuration is expected to provide long-term

Conservation of the species. Incidental Take of this

species is not included in this permit until Conservation of

the species in the Plan Area has been demonstrated by

reaching Objective 3.

Lake within Garner Valley within the San Jacinto

Mountains, the Jurupa Hills, Reche Canyon, along

Highway 74 in the San Jacinto Mountains and west

of Oak Glen Conservation Camp within the San

Bernardino Mountains) of Plummer's mariposa lily.

Objective 3: Within the MSHCP Conservation Area, confirm six

localities (locality in this sense is not smaller than

one quarter section) of at least 500 individuals

each (unless a smaller population has been

demonstrated to be self-sustaining).

southwest of Beaumont (1932), along

May Valley Road north of Highway 74

in the San Jacinto Mountains (1958)

and at the head of Banning Canyon

along the San Gorgonio River (1915)

are located outside of the MSHCP

Conservation Area. It cannot be

determined whether the populations

reported from the Santa Ana

Mountains along the border between

Riverside and Orange counties

(Roberts 1997; Roberts 1998) or at

Lake Skinner (Bramlet 2001) are

within or outside of the MSHCP

Conservation Area.

prostrate navarretia

(Navarretia prostrata)

3 Prostrate navarretia is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and requirements for

hydrology. This species occurs within coastal sage

scrub, valley and foothill grassland (alkaline washes) and

vernal pools between 15 and 700m. Only three

occurrences of this species are known from three general

locations within the Plan Area: the USGS 7.5 minute

Perris, Murrieta and Wildomar quadrangles. This species

is also known from the Santa Rosa Plateau.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for prostrate

navarretia will be conducted as part of the project review

process for public and private projects within the Criteria

Area where suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the MSHCP,

Volume I). Prostrate navarretia located as a result of

survey efforts shall be conserved in accordance with

procedures described within Section 6.3.2, MSHCP,

Volume I.

Objective 1: Include within the MSHCP Conservation Area at

least the one known occurrence of this species on

the Santa Rosa Plateau.

Objective 2: Include within the MSHCP Conservation Area the

watershed of the vernal pool complex on the Santa

Rosa Plateau in order to maintain hydrologic

conditions.

Objective 3: Surveys for prostrate navarretia will be conducted

as part of the project review process for public and

private projects within the Criteria Area where

suitable habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the

MSHCP, Volume I). Prostrate navarretia located as

a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.3.2 of the MSHCP, Volume I.

Conservation for this species will be

achieved by inclusion of suitable

Conserved Habitat and the core locality

and associated watershed within a large

block of habitat in the MSHCP

Conservation Area.

No known populations of prostrate

navarretia will be outside the MSHCP

Conservation Area. However, suitable

habitat for this species is present

outside the MSHCP Conservation Area

in ephemeral wetlands and mima

mounds in forest glades and mountain

areas. The level of potential Take in

these areas outside the MSHCP

Conservation Area cannot be

determined at this time.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 General Management Measure 4.

Page 134: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-134

prostrate spine flower

(Chorizanthe

procumbens)

2 Prostrate spine flower is designated as a Group 2 species

because although this species has a fairly scattered

distribution (Santa Ana Mountains, north slope of the

Palomar Mountains, the Santa Rosa Plateau, Beaumont,

French Valley, Winchester, the vicinity of Lake Elsinore,

Moreno Valley, the Sedco Hills and the vicinity of Anza),

the known occurrences are concentrated within the Santa

Ana Mountains or along the north slope of the Palomar

Mountains, primarily within U.S. Forest Service Lands.

The Dorland Mountain population on the north slope of

the Palomar Mountains in the Agua Tibia Wilderness Area

is the only known core location of the species. Within the

Plan Area, prostrate spine flower is found in sandy soil,

often in association with sandy barrens and sandy

openings in chamise chaparral, coastal sage scrub, and

occasionally grasslands below 800 m within the Agua

Tibia and Santa Ana Mountains Bioregions. Most

populations are concentrated in the Santa Ana Mountains

or along the north slope of the Palomar Mountains

(Reveal and Hardham 1989; Boyd, et al. 1992; Boyd and

Banks 1995). The Lake Elsinore location probably

represents a locality in the Santa Ana Mountains. The

Beaumont, French Valley, Moreno Valley and

Meadowbrook records appear to be outside of the known

range of this species and are questionable.

Objective 1: Include within the MSHCP Conservation Area at

least 64,000 acres of suitable Habitat (chaparral,

grassland and coastal sage scrub below 800 m

within the Agua Tibia Mountains and Santa Ana

Mountains Bioregions).

Objective 2: Include within the MSHCP Conservation Area at

least 14 of the known locations (in the Santa Ana

Mountains, in the Agua Tibia Mountains including

the Core Area at Dorland Mountain, west of

Beaumont, and the vicinity of French Valley).

Conservation for this species will be

achieved by inclusion of at least 64,000

acres of suitable Conserved Habitat and

14 known localities within large blocks of

Habitat in the MSHCP Conservation Area.

About 31,590 acres (33 percent) of

potential Habitat for the prostrate spine

flower would be outside the MSHCP

Conservation Area. Seven of the

mapped locations (including Moreno

Valley, Meadowbrook, Lake Elsinore,

Murrieta, two localities along

Temecula Creek, and the foothills of

the Santa Ana Mountains) are located

outside of the MSHCP Conservation

Area; however, several of these

occurrences are suspect and should

be verified.

None 8 Reserve Managers will avoid or minimize adverse effects to

prostrate spine flower to the maximum extent practicable.

Reserve Managers will manage known and future occurrences

of this species for competition with non-native grasses.

Rainbow manzanita

(Arctostaphylos

rainbowensis)

2 Rainbow manzanita is designated as a Group 2 species

because of its specialized Habitat and soils requirements

and scattered distribution within the southern portion of

the Plan Area. This species is restricted to ultramafic

southern mixed chaparral, principally on gabbro soils or

related soils rich in ferro-magnesian minerals. Although

it has a fairly scattered distribution within the Plan Area

(San Mateo Canyon Wilderness, Gavilan Mountain, Santa

Margarita Ecological Reserve, Santa Rosa Plateau, and

the Temecula, Margarita Peak and Pechanga areas), the

Santa Rosa Plateau is considered to be the Core Area.

The distribution of Rainbow manzanita is fairly scattered

but appears to be restricted to the eastern slopes of the

Santa Ana Mountains and the northern slopes of the Agua

Tibia Mountains, and therefore, the MSHCP Conservation

Area configuration is expected to provide long-term

Objective 1: Include within the MSHCP Conservation Area at

least 37,260 acres of suitable Habitat (chaparral

between 300 and 600 m within the Agua Tibia

Wilderness Area, the San Mateo Wilderness Area

and the Agua Tibia Mountains, Santa Ana

Mountains and Riverside Lowlands Bioregions).

Objective 2: Include within the MSHCP Conservation Area the

15 known localities of Rainbow manzanita: San

Mateo Canyon Wilderness, Gavilan Mountain,

Santa Margarita Ecological MSHCP Conservation

Area, Santa Rosa Plateau and the Temecula,

Wildomar, Margarita Peak and Pechanga areas.

Objective 3: Within the MSHCP Conservation Area, confirm 10

localities (locality in this sense is not smaller than

one quarter section) with more than 50 individuals

Conservation for this species will be

achieved by inclusion of at least 37,260

acres of suitable Conserved Habitat and

15 known localities within large blocks of

Habitat in the Santa Ana Mountains, the

Agua Tibia Mountains and the vicinity of

the Santa Rosa Plateau within the MSHCP

Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

All of the mapped Rainbow manzanita

locations will be conserved (including

the core Habitat area) within the

MSHCP Conservation Area with the

exception of the Temecula and

Pechanga localities. A total of 29,920

acres (45 percent) of potential Habitat

for Rainbow manzanita will be outside

the MSHCP Conservation Area. The

Temecula locality is an isolated

location in an existing urbanized area

and this area is not proposed to be

conserved as part of the overall

interconnected MSHCP Conservation

Area.

None 8 Reserve Managers will avoid or minimize adverse effects to

Rainbow manzanita to the maximum extent practicable. Reserve

Managers will manage known and future occurrences of this

species with regard to maintaining the natural fire regime,

farming activities and potential insect infestation.

Page 135: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-135

Conservation of the species. However, due to the

patchiness of the existing records, Incidental Take of this

species is not included in this permit until Conservation of

the species in the Plan Area has been demonstrated by

reaching Objective 3.

This species is designated as a Forest Service Sensitive

Species which can be managed at the site specific level.

Forest Service Sensitive Species are protected through

the implementation of Forest Plans and the biological

evaluation (BE) process, which considers the potential

effects of Forest Service activities on these species.

each (unless a smaller population has been

demonstrated to be self-sustaining).

round-leaved filaree

(Erodium macrophyllum)

3 Round-leaved filaree is designated as a Group 3 species

because of its specialized Habitat and soils requirements

and somewhat limited distribution (from the Gavilan Hills

southeast to the foothills of the Agua Tibia Mountains)

within the Plan Area. This species is restricted to open

cismontane woodland and valley and foothill grassland on

clay soils between 15 and 1200 m.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for

round-leaved filaree will be conducted as part of the

project review process for public and private projects

within the Criteria Area where suitable Habitat is present

(see Criteria Area Species Survey Area Map, Figure 6-2 of

the MSHCP, Volume I). Round-leaved filaree located as

a result of survey efforts shall be conserved in

accordance with procedures described within Section

6.3.2, MSHCP, Volume I.

Objective 1: Include within the MSHCP Conservation Area at

least 37,663 acres of suitable Habitat (grasslands

and cismontane woodlands between 15 and 1,200

m within the Santa Ana Mountains and the

Riverside Lowlands Bioregions).

Objective 2: Include within the MSHCP Conservation Area eight

out of the 10 known localities of round-leaved

filaree: four occurrences in the Gavilan Hills region,

one at Lake Mathews, one along Temescal Wash

near Lee Lake, one at Diamond Valley Lake and

one in the foothills of the Agua Tibia Mountains.

Objective 3: Surveys for round-leaved filaree will be conducted

as part of the project review process for public and

private projects within the Criteria Area where

suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the

MSHCP, Volume I). Round-leaved filaree located

as a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.3.2 of the MSHCP, Volume I.

Conservation for this species will be

achieved by inclusion of at least 37,663

acres of suitable Conserved Habitat and

eight known localities within large blocks

of Habitat in the Gavilan Hills, along

Temescal Wash, at Lake Mathews,

Diamond Valley Lake and the foothills of

the Agua Tibia Mountains within the

MSHCP Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

Two of the mapped round-leaved

filaree locations will not be conserved

within the MSHCP Conservation Area:

one in French Valley and one in the

Gavilan Hills. A total of 215,108 acres

(85%) of potential Habitat for

round-leaved filaree will be outside the

MSHCP Conservation Area. The

Murrieta locality is an isolated location

in an existing urbanized area and this

area is not proposed to be included in

MSHCP Conservation Area.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 Reserve Managers will manage known and future occurrences

of this species with regard to non-native plant species.

San Diego ambrosia

(Ambrosia pumila)

3 San Diego ambrosia is designated as a Group 3 species

because of its limited geographic distribution, and

specialized Habitat and management requirements. Only

three populations are known from Riverside County; all

are located in the Riverside Lowlands Bioregion. The two

largest populations occur in the vicinity of Alberhill. The

first occurs both north and south of Nichols Road, west

Objective 1: Include within the MSHCP Conservation Area at

least 21,800 acres of suitable Habitat (grassland

and playa/vernal pools between 200 and 500 m

within the Riverside Lowlands Bioregion).

Objective 2: Include within the MSHCP Conservation Area at

least two of the three known locations of this

Conservation for this species will be

achieved by inclusion of at least 21,800

acres of suitable Conserved Habitat and

two Core localities within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

Approximately 52,010 (70 percent)

acres of potential Habitat in the Plan

Area will not be conserved, however,

of this 8,940 acres will be subject to

focused surveys for San Diego

ambrosia and newly identified

populations conserved in accordance

Yes, see Section

6.1.3 (Protection

of Narrow

Endemic Plant

Species)

8 Reserve Managers will manage this species for competition from

non-native species competition and trampling.

Page 136: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-136

of Interstate 15 and Alberhill Creek; the second is located

east of Lake Street, immediately south of Interstate 15.

A third, and smaller, population is found at Skunk Hollow,

south of Tucalota Creek and east of San Diego Aqueduct

1, near Murietta Hot Springs. At the Alberhill and Nichols

Road sites, San Diego ambrosia is found in ruderal

Habitat and open non-native grassland on Garretson

gravelly fine sandy loam soil. Both populations are within

floodplain areas associated with Alberhill Creek. At Skunk

Hollow, however, San Diego ambrosia occurs in

non-native grassland a short distance west of the Skunk

Hollow vernal pool. Here, the underlying soil is Las Posas

loam.

This is a species on the Narrow Endemic Plant List

(Section 6.1.3) and surveys for San Diego ambrosia will

be conducted as part of the project review process for

public and private projects within the Narrow Endemic

Plant Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species Survey Area

Map, Figure 6-1 of the MSHCP, Volume I). San Diego

ambrosia located as a result of survey efforts shall be

conserved in accordance with procedures described

within Section 6.1.3, MSHCP, Volume 1.

species: Alberhill Creek at Nichols Road and Skunk

Hollow.

Objective 3: Surveys for the San Diego ambrosia will be

conducted as part of the project review process for

public and private projects within the Narrow

Endemic Plant Species survey area where suitable

Habitat is present (see Narrow Endemic Plant

Species Survey Area Map, Figure 6-1 of the

MSHCP, Volume I). San Diego ambrosia located as

a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.1.3 of the MSHCP, Volume 1.

guide Reserve Assembly, management

and monitoring. The third Core location

(east of Lake Street in the City of Lake

Elsinore) will be conserved in accordance

with the Narrow Endemics Policy (Section

6.1.3).

with the Narrow Endemics policy.

Three records from the University of

California, Riverside (UCR) GIS

database will not be conserved (near

Pechanga, south of Lake Mathews and

near Murrieta); however, these

occurrences are suspect and should

be verified.

San Diego button-celery

(Eryngium aristulatum var.

parishii)

3 San Diego button-celery is designated as a Group 3

species because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for hydrology. Within the Plan Area, this

species is restricted to vernal pools on the Santa Rosa

Plateau.

Objective 1: Include within the MSHCP Conservation Area at

least four known locations on the Santa Rosa

Plateau.

Objective 2: Include within the MSHCP Conservation Area the

watershed of the known locations on the Santa

Rosa Plateau in order to maintain existing

hydrologic conditions.

Conservation for this species will be

achieved by inclusion of suitable

Conserved Habitat (vernal pools on the

Santa Rosa Plateau) and four known

localities and associated watershed in the

MSHCP Conservation Area.

No known populations of San Diego

button-celery will be outside the

MSHCP Conservation Area. Although

no Take of known occurrences of

button celery will occur as part of the

MSHCP, certain areas located outside

the MSHCP Conservation Area may

contain vernal pool Habitat that could

support this species. This Habitat

type is not mapped as part of MSHCP

database and therefore cannot be

quantified as potential Habitat loss at

this time.

None 8 General Management Measure 4. Reserve Managers will

maintain the watershed and hydrologic conditions of the known

vernal pool complexes on the Santa Rosa Plateau.

San Jacinto Mountains

bedstraw

(Galium angustifolium

ssp. jacinticum)

3 San Jacinto Mountains bedstraw is designated as a Group

3 species because of its restriction to the San Jacinto

Mountains and its need for site specific management and

monitoring. Within the Plan Area, San Jacinto Mountains

bedstraw is restricted to lower montane mixed forest and

Objective 1: Include within the MSHCP Conservation Area at

least 12,125 acres of suitable Habitat (montane

coniferous forest between 1,280 to 1,980 m within

the Narrow Edemic survey area of the San Jacinto

Mountains Bioregion).

Conservation for this species will be

achieved by inclusion of at least 12,125

acres of suitable Conserved Habitat and

eight known localities within large blocks

of Habitat in the MSHCP Conservation

Approximately 8,545 acres (41

percent) of potential Habitat for San

Jacinto Mountains bedstraw will not

be conserved. One of the localities is

within private in-holdings within the

Yes, see Section

6.1.3 (Protection

of Narrow

Endemic Plant

Species)

8 Reserve Managers will avoid or minimize adverse effects to San

Jacinto Mountains bedstraw to the maximum extent practicable.

Reserve Managers will manage this species for potential Habitat

loss and possible genetic swamping.

Page 137: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-137

coniferous forest at elevations of 1,280 m to 1,980 m

within the San Jacinto Mountains, primarily within USFS

lands. San Jacinto Mountains bedstraw is endemic to the

San Jacinto Mountains and has been reported southeast

of Hemet, Cherry Valley, Lake Fulmor, Dark Canyon and

the Black Mountain area.

San Jacinto Mountain bedstraw is designated as a Forest

Service Sensitive Species. Forest Service Sensitive

Species are protected through the implementation of

Forest Plans and the biological evaluation (BE) process,

which considers the potential effects of Forest Service

activities on these species.

This is a species on the Narrow Endemic Plant List

(Section 6.1.3) and surveys for San Jacinto Mountain

bedstraw will be conducted as part of the project review

process for public and private projects within the Narrow

Endemic Plant Species survey area where suitable Habitat

is present (see Narrow Endemic Plant Species Survey

Area Map, Figure 6-1 of the MSHCP, Volume I). San

Jacinto Mountain bedstraw located as a result of survey

efforts shall be conserved in accordance with procedures

described within Section 6.1.3, MSHCP, Volume 1.

Objective 2: Include within the MSHCP Conservation Area at

least eight of the known locations of this species:

Lake Fulmor, Dark Canyon and the Black Mountain

area.

Objective 3: Surveys for this species will be conducted as part

of the project review process for public and private

projects within the Narrow Endemic Plant Species

survey area where suitable Habitat is present (see

Narrow Endemic Plant Species Survey Area Map,

Figure 6-1 of the MSHCP, Volume I). San Jacinto

Mountain bedstraw located as a result of survey

efforts shall be conserved in accordance with

procedures described within Section 6.1.3,

MSHCP, Volume 1.

Area. In addition, implementation of

Objective 3 for this species will provide

new data to guide Reserve Assembly,

management and monitoring.

San Jacinto Mountains and will not be

conserved. It is important to note,

however, that this potential Habitat

and the mapped location are included

within the Narrow Endemic Plant

Species survey area and Conservation

of this potential Habitat and known

location will be addressed in

accordance with the procedures

presented in the Narrow Endemic

Plant Species policy described in

Section 6.1.3 of the MSHCP, Volume

I.

San Jacinto Valley

crownscale

(Atriplex coronata var.

notatior)

3 San Jacinto Valley crownscale is designated as a Group

3 species because of its limited geographic distribution

and specialized Habitat requirements and management

requirements for floodplain processes. This species is

primarily restricted to the alkali floodplains of the San

Jacinto River, Mystic Lake and Salt Creek in association

with Willows, Domino and Traver soils. San Jacinto

Valley crownscale occurs as 11 loosely-defined

populations (comprising three Core Areas) that are

primarily associated with Mystic Lake, the San Jacinto

River and Salt Creek tributary drainages. One additional

population is known to occur on Willows soils at Alberhill

Creek near Lake Elsinore.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for San

Jacinto Valley crownscale will be conducted as part of the

project review process for public and private projects

Objective 1: Include within the MSHCP Conservation Area at

least 6,900 acres of suitable habitat (grassland and

playas and vernal pools within the San Jacinto

River, Mystic Lake and Salt Creek portions of the

MSHCP Conservation Area).

Objective 2: Include within the MSHCP Conservation Area the

Alberhill Creek locality as well as the three Core

Areas, located along the San Jacinto River from the

vicinity of Mystic Lake southwest to the vicinity of

Perris and in the upper Salt Creek drainage west of

Hemet.

Objective 3: Surveys for the San Jacinto Valley crownscale will

be conducted as part of the project review process

for public and private projects within the Criteria

Area where suitable habitat is present (see Criteria

Area Species Survey Area Map, Figure 6-2 of the

Conservation for this species will be

achieved by inclusion of at least 6,900

acres of suitable Conserved Habitat and

the locality at Alberhill Creek near Lake

Elsinore and the three core localities

(Mystic Lake, the San Jacinto River and

the upper Salt Creek drainage) within large

blocks of Habitat in the MSHCP

Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring. Implementation of Objectives

4 and 5 for this species will maintain

alluvial processes (floodplain hydrology

and flooding) upon which this species

depends.

Approximately 1,370 acres (17

percent) of potential Habitat for San

Jacinto Valley crownscale will be

outside the MSHCP Conservation

Area.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and enhancing the floodplain

processes of the San Jacinto River, Mystic Lake and upper Salt

Creek, including intermittent flooding and periodic pooling.

Particular management emphasis will be given to preventing

alteration of hydrology and floodplain dynamics, farming, fire and

fire suppression activities, off-road vehicle use, and competition

from non-native plant species.

Page 138: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-138

within the Criteria Area where suitable Habitat is present

(see Criteria Area Species Survey Area Map, Figure 6-2 of

the MSHCP, Volume I). San Jacinto Valley crownscale

located as a result of survey efforts shall be conserved in

accordance with procedures described within Section

6.3.2, MSHCP, Volume I.

MSHCP, Volume 1). San Jacinto Valley

crownscale located as a result of survey efforts

shall be conserved in accordance with procedures

described within Section 6.3.2 of the MSHCP,

Volume I.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along the San Jacinto River consistent

with Objective 1. Floodplain processes will be

maintained along the river in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change. A potential future flood control project

along the San Jacinto River designed and

constructed consistent with the criteria for the San

Jacinto River project presented in Section 7.0 of

the MSHCP, Volume I and with the Area Plan

Subunit guidelines for Subunit 1 of the

Lakeview/Nuevo Area Plan and Subunit 4 of the

Mead Valley Area Plan will be considered to be

consistent with this objective.

Objective 5: Include within the MSHCP Conservation Area the

floodplain along Salt Creek generally in its existing

condition from Warren Road to Newport Road and

the vernal pools in Upper Salt Creek west of

Hemet. Floodplain processes will be maintained in

order to provide for the distribution of the species

to shift over time as hydrologic conditions and

seed bank sources change.

San Miguel savory

(Satureja chandleri)

3 San Miguel savory is designated as a Group 3 species

because of its narrowly-defined geographic distribution

and its specialized Habitat and soils requirements. This

species is primarily restricted to rocky, gabbroic and

metavolcanic substrates in coastal sage scrub, chaparral,

cismontane woodland, riparian woodland, and valley and

foothill grasslands (between 120 and 1,005 m). The

majority of the populations/individuals are associated with

the Santa Rosa Plateau and the Santa Ana Mountains.

This is a species on the Narrow Endemic Plant List

(Section 6.1.3) and surveys for San Miguel savory will be

conducted as part of the project review process for public

Objective 1: Include within the MSHCP Conservation Area at

least 201,450 acres of suitable Habitat (chaparral,

coastal sage scrub, cismontane forest, riparian

woodland, and valley and foothill grassland

between 120 and 1,005 m).

Objective 2: Include within the MSHCP Conservation Area at

least seven of the known locations of San Miguel

savory on the Santa Rosa Plateau; in the vicinity of

Tenaja guard station and three miles south of

Murrieta near De Luz Road in the Santa Ana

Mountains; and three miles southwest of Murrieta

near Warner's Ranch.

Conservation for this species will be

achieved by inclusion of at least 201,450

acres of suitable Conserved Habitat and

seven known localities (on the Santa Rosa

Plateau and in the Santa Ana Mountains)

within large blocks of Habitat in the

MSHCP Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 224,550 (53 percent) of

potential Habitat for San Miguel savory

will be outside the MSHCP

Conservation Area, however, of this

27,760 acres will be subject to

focused surveys for San Miguel

savory and newly identif ied

populations conserved in accordance

with the Narrow Endemics policy.

Within the CNDDB, four of the five

mapped locations will not be

conserved within the MSHCP

Conservat ion Area. These

Yes, see Section

6.1.3 (Protection

of Narrow

Endemic Plant

Species)

8 Reserve Managers will avoid or minimize adverse effects to San

Jacinto Mountains bedstraw to the maximum extent practicable.

Reserve Managers will manage the known and future

occurrences of this species for recreational activities.

Page 139: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-139

and private projects within the Narrow Endemic Plant

Species survey area where suitable Habitat is present

(see Narrow Endemic Plant Species Survey Area Map,

Figure 6-1 of the MSHCP, Volume I). San Miguel savory

located as a result of survey efforts shall be conserved in

accordance with procedures described within Section

6.1.3, MSHCP, Volume I.

This species is designated as a Forest Service Sensitive

Species which can be managed at the site specific level.

Forest Service Sensitive Species are protected through

the implementation of Forest Plans and the biological

evaluation (BE) process, which considers the potential

effects of Forest Service activities on these species.

Objective 3: Surveys for San Miguel savory will be conducted

as part of the project review process for public and

private projects within the Narrow Endemic Plant

Species survey area where suitable Habitat and

gabbro soils are present (see Narrow Endemic

Plant Species Survey Area Map, Figure 6-1 of the

MSHCP, Volume I). San Miguel savory located as

a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.1.3, MSHCP, Volume 1.

occurrences are all in the vicinity of

the Santa Rosa Plateau. It should be

noted that the Narrow Endemic Plant

Species policy will apply to locations

outside the MSHCP Conservation

Area.

Santa Ana River

woollystar (Eriastrum

densifolium ssp.

sanctorum)

3 Santa Ana River woolly-star is designated as a Group 3

species because of its narrowly restricted geographic

distribution, specialized Habitat requirements and

management requirements for floodplain processes. This

species is restricted to open washes and

early-successional alluvial fan scrub on open slopes

above main watercourses on fluvial deposits where

flooding and scouring occur at a frequency that allows the

persistence of open shrublands. The Santa Ana River

woolly-star has a narrowly restricted distribution within

the Plan Area (Santa Ana River) and thus requires

species-specific monitoring and management in order to

ensure species persistence within the Plan Area.

Objective 1: Include within the MSHCP Conservation Area at

least 2,340 acres of suitable Habitat (Riversidean

alluvial fan sage scrub between 150 and 580 m in

the Riverside Lowlands Bioregion).

Objective 2: Include within the MSHCP Conservation Area at

least three occurrences of this species along the

Santa Ana River near the San Bernardino County

border.

Objective 3: Include within the MSHCP Conservation Area the

floodplain along the Santa Ana River. Alluvial

processes will be maintained in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change.

Conservation for this species will be

achieved by inclusion of at least 2,340

acres of suitable Conserved Habitat and

the known extant localities (four

occurrences) with connectivity along the

Santa Ana River in the MSHCP

Conservation Area. In addition,

implementation of Objective 3 for this

species will maintain alluvial processes

(floodplain hydrology and flooding) upon

which this species depends.

Approximately 910 acres of potential

Habitat in the Plan Area will not be

conserved. The occurrence mapped

at Limonite Avenue dates from 1986

and is likely not extant; this locality will

not be conserved. No further Take is

given for this species.

None 8 Reserve Managers will manage the floodplain along the Santa

Ana River in order to maintain alluvial processes that provide for

the distribution of the species to shift over time as hydrologic

conditions and seed bank sources change. Specifically, manage

the natural river bottom and banks, with a 500 foot buffer zone

(e.g., alluvial terraces, riparian vegetation) of the Santa Ana River

with a minimum of 0.5 mile upstream of the confluence of each

of the tributaries to the Santa Ana River between the

Riverside/San Bernardino County line and the Riverside/Orange

County line. Tributaries include Sunnyslope Creek, Mount

Rubidoux Creek, Arroyo Tequesquite, Anza Park Drain, Evans

Lake Drain, Temescal Creek and Aliso Creek. Reserve Managers

will maintain or improve existing water quality and flow levels in

the Santa Ana River by the use and enforcement of current or

better water quality standards and at a minimum maintenance of

existing flows.

shaggy-haired alumroot

(Heuchera hirsutissima)

2 Shaggy-haired alumroot is designated as a Group 2

species. This species is restricted to the San Jacinto and

Santa Rosa Mountains, primarily within USFS and State

Park lands. Within the Plan Area, shaggy-haired alumroot

is known from rocky areas and granite crevices within

upper-montane coniferous forest and subalpine

coniferous forest at elevations of 1,815 m to 3,500 m

within the San Bernardino National Forest and San Jacinto

State Park in the San Jacinto Bioregion. Seventy-eight

percent of the potential Habitat for this plant is contained

within existing Public/Quasi-Public Lands. Most of the

known occurrences of this species occur east of the Plan

Area. Only two localities of shaggy-haired alumroot are

Objective 1: Include within the MSHCP Conservation Area at

least 7,760 acres of suitable Habitat (montane

coniferous forest between 1,815 and 3,500 m in

the San Jacinto Mountains Bioregion).

Objective 2: Include within the MSHCP Conservation Area the

two known localities of this plant in the San Jacinto

Mountains: one locality lies on the western slopes

of the San Jacinto Mountains above the San

Jacinto River and the other locality is in a gully

behind Tahquitz Rock.

Conservation for this species will be

achieved by inclusion of at least 7,760

acres of suitable Conserved Habitat and

two known localities (three occurrences)

within Public/Quasi-Public Lands within

large blocks of Habitat in the MSHCP

Conservation Area.

Approximately 2,210 acres (22

percent) of potential Habitat for

shaggy-haired alumroot will not be

conserved.

None 8 Reserve Managers will avoid or minimize adverse effects to

shaggy-haired alum root to the maximum extent practicable.

Page 140: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-140

known within the Plan Area, both within the San Jacinto

Mountains. One locality lies on the western slopes of the

San Jacinto Mountains, above the San Jacinto River (UCR

database). The other locality is in a gully behind Tahquitz

Rock (CNDDB 2000).

This plant is designated as a Forest Service Sensitive

Species. The Assessment indicates that it falls under the

"minimal influence" category, which means that it is

affected minimally by public land management actions.

Forest Service Sensitive Species are protected through

the implementation of Forest Plans and the biological

evaluation (BE) process, which considers the potential

effects of Forest Service activities on these species.

slender-horned spine

flower (Dodecahema

leptoceras)

3 Slender-horned spine flower is designated as a Group 3

species because of its specialized Habitat requirements

and limited distribution. This species is dependent on

mature alluvial scrub that is maintained by periodic

flooding and sediment transport and only occurs along

Arroyo Seco and Kolb Creeks, Temescal Wash at Indian

Creek, central Bautista Creek, Vail Lake and the upper San

Jacinto River near Valle Vista and Hemet.

This is a species on the Narrow Endemic Plant List

(Section 6.1.3) and surveys for slender-horned spine

flower will be conducted as part of the project review

process for public and private projects within the Narrow

Endemic Plant Species survey area where suitable Habitat

is present (see Narrow Endemic Plant Species Survey

Area Map, Figure 6-1 of the MSHCP, Volume I).

Slender-horned spine flower located as a result of survey

efforts shall be conserved in accordance with procedures

described within Section 6.1.3, MSHCP, Volume I.

Objective 1: Include within the MSHCP Conservation Area at

least 8,350 acres of suitable Habitat (chaparral and

Riversidean alluvial fan sage scrub between 200

and 700 m in the Vail Lake Narrow Endemic

Species survey area and Agua Tibia Mountains

Bioregion).

Objective 2: Include within the MSHCP Conservation Area at

least 11 of the known locations of this species,

including Temescal Canyon, Bautista Canyon,

upper San Jacinto River, Agua Tibia Wilderness

Area, Alberhill, Alberhill Creek east of Lake

Elsinore, Railroad Canyon, Vail Lake, Kolb Creek,

and east of State Street south of Hemet.

Objective 3: Surveys for slender-horned spine flower will be

conducted as part of the project review process for

public and private projects within the Narrow

Endemic Plant Species survey area where suitable

Habitat is present (see Narrow Endemic Plant

Species Survey Area Map, Figure 6-1 of the

MSHCP, Volume I). Slender-horned spine flower

located as a result of survey efforts shall be

conserved in accordance with procedures

described within Section 6.1.3, MSHCP, Volume I.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along Arroyo Seco and Kolb Creeks,

Temescal Wash at Indian Creek, central Bautista

Conservation for this species will be

achieved by inclusion of at least 8,350

acres of suitable Conserved Habitat and

11 localities (15 occurrences) within large

blocks of Habitat (Temescal Canyon,

Bautista Canyon, upper San Jacinto River,

Agua Tibia Wilderness Area, and Vail

Lake) in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring, and implementation of

Objective 4 for this species will maintain

alluvial processes (floodplain hydrology

and flooding) upon which this species

depends.

Approximately 2,950 acres of potential

Habitat for the slender-horned spine

flower in the Plan Area will not be

conserved. However, approximately

2,290 acres outside of the MSHCP

Conservation Area will be subject to

focused surveys for slender-horned

spine flower and newly identified

populations conserved in accordance

with the Narrow Endemics policy. Of

the 27 UCR database and herbarium

records, 12 of the occurrences will not

be conserved (Gavilan Plateau, north

of Meadowbrook, Temescal Canyon,

Lake Elsinore, Valle Vista, Agua Tibia

Mountains, El Cariso, and east of State

Street south of Hemet). It should be

noted that these localities will be

conserved in accordance with the

Narrow Endemics policy and the

Riparian/ Riverine Areas and Vernal

Pools Policy will apply to potential

Habitat areas for this species outside

the MSHCP Conservation Area.

Yes, see Section

6.1.3 (Protection

of Narrow

Endemic Plant

Species)

8 Reserve Managers will ensure Habitat support functions within

the MSHCP Conservation Area by maintaining and enhancing

fluvial processes of Arroyo Seco and Kolb Creeks, Temescal

Wash at Indian Creek, central Bautista Creek and the San Jacinto

River. Particular management emphasis will be given to flood

control measures, sand and gravel mining, trampling, off-road

vehicle use, and competition from non-native plant species.

Page 141: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-141

Creek and the San Jacinto River upstream from

Valle Vista. Alluvial processes will be maintained

in order to provide for the distribution of the

species to shift over time as hydrologic conditions

and seed bank sources change.

small-flowered microseris

(Microseris douglasii var.

platycarpha)

2 Small-flowered microseris is designated as a Group 2

species because it is known from several Core Areas and

is restricted to particular soils series within the Plan Area.

Although the species has a scattered distribution,

locations appear to be concentrated in the western

portion of the Plan Area. Small-flowered microseris is

associated with perennial grasslands on clay lenses and

on the periphery of vernal pools, typically below 1000 m.

Within the Plan Area, populations are known from the

Riverside Lowlands and Santa Ana Mountains Bioregions,

with a cluster of populations near Vail Lake in the San

Jacinto Foothills Bioregion.

Most (eight of the 12) of the records for this species are

inside of the proposed MSHCP Conservation Area and the

MSHCP Conservation Area configuration is expected to

provide long-term Conservation of the species. However,

the existing records are not believed to be indicative of the

distribution of this species. Incidental Take of this

species is not included in this permit until Conservation of

the species in the Plan Area has been demonstrated by

reaching Objective 3.

Objective 1: Include within the MSHCP Conservation Area at

least 45,290 acres of suitable Habitat (grassland

and playas and vernal pools below 1000 m within

the Riverside Lowlands, San Jacinto Foothills and

Santa Ana Mountains Bioregions), on at least

2,280 acres of clay soils (190 acres of Altamont,

450 acres of Auld, 600 acres of Bosanko, 100

acres of Claypit and 940 acres of Porterville soils).

Objective 2: Include within the MSHCP Conservation Area at

least eight of the known locations at Lake

Matthews, in the Cleveland National Forest, at Lake

Skinner and at Vail Lake.

Objective 3: Within the MSHCP Conservation Area, confirm 10

localities (locality in this sense is not smaller than

one quarter section) with at least 1,000 individuals

(unless a smaller population has been

demonstrated to be self-sustaining).

Conservation for this species will be

achieved by inclusion of at least 45,290

acres of suitable Conserved Habitat and

23 known occurrences at Lake Mathews,

Santa Ana Mountains in the Cleveland

National Forest, Lake Skinner, Temescal

Canyon, Vail Lake, Paloma Valley, French

Valley, Cottonwood Canyon and Alberhill

within large blocks of Habitat in the

MSHCP Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 94,380 acres of

potential Habitat for small-flowered

microseris and seven of the

occurrences of the species would not

be conserved in the MSHCP

Conservation Area, including those at

Paloma Valley, Temescal Canyon, in

the Santa Ana Mountains, the Gavilan

Hills and Alberhill.

None 8 Unknown.

small-flowered morning-

glory

(Convolvulus simulans)

2 Small-flowered morning-glory is designated as a Group 2

species because the species is known from several Core

Areas and is restricted to particular soils series within the

Plan Area. Although the species has a scattered

distribution ( Lake Mathews, Alberhill, Santa Rosa

Plateau, Murrieta Hot Springs, Vail Lake, Lake Skinner,

East Hemet), populations appear to be concentrated in the

vicinity of Vail Lake. Small-flowered morning-glory is

associated with open sage scrub and grasslands in the

Riverside Lowlands, San Jacinto Foothills, and Santa Ana

Mountains Bioregions where they occur on clay and

cobbly clay soils below 1,000 feet (~325m) elevation.

Objective 1: Include within the MSHCP Conservation Area at

least 100,690 acres of suitable Habitat (coastal

sage scrub and grasslands below 325 m in the

Riverside Lowlands, San Jacinto Foothills, and

Santa Ana Mountains Bioregions), on at least

2,290 acres of clay soils (190 acres of Altamont,

450 acres of Auld, 600 acres of Bosanko, 100

acres of Claypit and 950 acres of Porterville soils).

Objective 2: Include within the MSHCP Conservation Area at

least eight of the known localities (including Vail

Lake, Lake Skinner, Lake Mathews, Temescal

Canyon, Alberhill, Santa Rosa Plateau, Santa Ana

Mountains, and Skunk Hollow) of this species.

Conservation for this species will be

achieved by inclusion of at least 100,690

acres of suitable Conserved Habitat and

13 known localities (33 occurrences)

within large blocks of Habitat in the

MSHCP Conservation Area.

Approximately 143,210 acres of

potential Habitat for small-flowered

morning-glory will not be conserved in

the MSHCP Conservation Area.

Several localities (nine occurrences)

will not be conserved within the

MSHCP Conservation Area: isolated

populations at Alberhill, Homeland,

near Hemet, Paloma Valley and Sun

City.

None 8 Unknown.

Page 142: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-142

smooth tarplant

(Centromadia pungens)

(formerly known as

Hemizonia pungens ssp.

laevis)

3 Smooth tarplant is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for floodplain processes. Although this

species has a scattered distribution (Salt Creek, along the

San Jacinto River, Temecula Creek, Tres Cerrritos

northwest of Hemet, Sycamore Canyon Park, Moreno

Valley, Lake Skinner, Clinton Keith Road east of Deer

Creek Development, and Potrero Creek near Beaumont),

this species is primarily restricted to the alkali floodplains

of the San Jacinto River, Mystic Lake and Salt Creek in

association with Willows, Domino and Traver soils.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for smooth

tarplant will be conducted as part of the project review

process for public and private projects within the Criteria

Area where suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the MSHCP,

Volume I). Smooth tarplant located as a result of survey

efforts shall be conserved in accordance with procedures

described within Section 6.3.2, MSHCP, Volume I.

Objective 1: Include within the MSHCP Conservation Area at

least 6,900 acres of suitable Habitat (grassland

and playas and vernal pools within the San Jacinto

River, Mystic Lake and Salt Creek portions of the

MSHCP Conservation Area).

Objective 2: Include within the MSHCP Conservation Area at

least 27 of the known occurrences of this species

at Antelope Valley; Temescal Canyon; Lake

Elsinore; Murrieta Creek; French Valley; Lakeview

Mountains; Lake Skinner; Diamond Valley Lake;

Sycamore Canyon Park; Alberhill Creek; Lake

Mathews; the Santa Ana River; and the core

locations at the San Jacinto Wildlife Area, the

middle segment of the San Jacinto River and upper

Salt Creek.

Objective 3: Surveys for the smooth tarplant will be conducted

as part of the project review process for public and

private projects within the Criteria Area where

suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the

MSHCP, Volume I). Smooth tarplant located as a

result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.3.2 of the MSHCP, Volume I.

Conservation for this species will be

achieved by inclusion of at least 6,900

acres of suitable Conserved Habitat and

the core localities (the San Jacinto Wildlife

Area, the middle segment of the San

Jacinto River and Salt Creek) within large

blocks of Habitat in the MSHCP

Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 1,370 acres (17

percent) of potential habitat for

smooth tarplant will be outside the

MSHCP Conserva t ion Area .

Thirty-nine of the occurrences in the

UCR database and herbarium

collections will not be conserved in the

MSHCP Conserva t ion Area .

Twenty-five of the occurrences in the

CNDDB database will not be

conserved in the MSHCP Conservation

Area. Localities not conserved include

the occurrences in Hemet, Tres

Cerritos, Murrieta, Moreno Valley,

Mead Valley, south of Lake Elsinore,

Glen Ivy, the City of San Jacinto, the

upper reaches of the San Jacinto River

and the four occurrences previously

impacted at Diamond Valley Lake.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 Reserve Managers will ensure Habitat support functions within

the MSHCP Conservation Area by maintaining and enhancing the

floodplain processes of the San Jacinto River, Mystic Lake and

upper Salt Creek, including intermittent flooding and periodic

pooling. Particular management emphasis will be given to

preventing alteration of hydrology and floodplain dynamics,

farming, fire and fire suppression activities, off-road vehicle use,

and competition from non-native plant species.

spreading navarretia

(Navarretia fossalis)

3 Spreading navarretia is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for floodplain processes. This species is

primarily restricted to the alkali floodplains of the San

Jacinto River, Mystic Lake and Salt Creek in association

with Willows, Domino and Traver soils. Eleven of the 14

populations are found in the alkali soils of three population

complexes within the Upper Salt Creek drainage west of

Hemet, and along the San Jacinto River extending from

just west of Mystic Lake south to the Perris Valley Airport.

Spreading navarretia has been reported on the Santa

Rosa Plateau and at Skunk Hollow.

Objective 1: Include within the MSHCP Conservation Area at

least 6,900 acres of suitable habitat (grassland and

playas and vernal pools within the San Jacinto

River, Mystic Lake and Salt Creek portions of the

MSHCP Conservation Area).

Objective 2: Include within the MSHCP Conservation Area at

least 13 of the known locations of spreading

naverretia at the Skunk Hollow, the Santa Rosa

Plateau and core locations: the San Jacinto Wildlife

Area, floodplains of the San Jacinto River from the

Ramona Expressway south to Railroad Canyon,

and upper Salt Creek west of Hemet.

Conservation for this species will be

achieved by inclusion of at least 6,900

acres of suitable Conserved Habitat and

three core localities (alkali Habitats within

the San Jacinto Wildlife Area, the

floodplains of the San Jacinto River from

Ramona Expressway south to Railroad

Canyon and the upper Salt Creek drainage

area west of Hemet) within large blocks

of Habitat in the MSHCP Conservation

Area. In addition, implementation of

Objective 3 for this species will provide

new data to guide Reserve Assembly,

m a n ag e m e n t and mon i t o r i n g .

Approximately 1,370 acres of potential

Habitat for spreading navarretia will be

outside the MSHCP Conservation

Area. It is important to note, however,

that this potential Habitat is included

within the Narrow Endemic Plant

Species survey area.

Yes, see Section

6.1.3 (Protection

of Narrow

Endemic Plant

Species)

8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and enhancing the floodplain

processes of the San Jacinto River, Mystic Lake and upper Salt

Creek, including intermittent flooding and periodic pooling.

Particular management emphasis will be given to preventing

alteration of hydrology and floodplain dynamics, farming, fire and

fire suppression activities, off-road vehicle use, grazing and

competition from non-native plant species.

Page 143: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-143

This is a species on the Narrow Endemic Plant List

(Section 6.1.3) and surveys for spreading navarretia will

be conducted as part of the project review process for

public and private projects within the Narrow Endemic

Plant Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species Survey Area

Map, Figure 6-1 of the MSHCP, Volume I). Spreading

navarretia located as a result of survey efforts shall be

conserved in accordance with procedures described

within Section 6.1.3, MSHCP, Volume 1.

Objective 3: Surveys for the spreading navarretia will be

conducted as part of the project review process for

public and private projects within the Narrow

Endemic Plant Species survey area where suitable

habitat is present (see Narrow Endemic Plant

Species Survey Area Map, Figure 6-1 of the

MSHCP, Volume I). Spreading navarretia located

as a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.1.3 of the MSHCP, Volume I.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along the San Jacinto River consistent

with Objective 1. Floodplain processes will be

maintained along the river in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change. A potential future flood control project

along the San Jacinto River designed and

constructed consistent with the criteria for the San

Jacinto River project presented in Section 7.0 of

the MSHCP, Volume I and with the Area Plan

Subunit guidelines for Subunit 1 of the

Lakeview/Nuevo Area Plan and Subunit 4 of the

Mead Valley Area Plan will be considered to be

consistent with this objective.

Objective 5: Include within the MSHCP Conservation Area the

floodplain along Salt Creek generally in its existing

condition from Warren Road to Newport Road and

the vernal pools in Upper Salt Creek west of

Hemet. Floodplain processes will be maintained in

order to provide for the distribution of the species

to shift over time as hydrologic conditions and

seed bank sources change.

Implementation of Objectives 4 and 5 for

this species will maintain alluvial

processes (floodplain hydrology and

flooding) upon which this species

depends.

sticky-leaved dudleya

(Dudleya viscida)

2 Sticky-leaved dudleya is designated as a Group 2 species

because, in the Plan Area, it is restricted to coastal sage

scrub and chaparral on mesic, mostly north-facing, and

often steep, rocky canyon slopes within the Santa Ana

Mountains. The undisputed known occurrences are

concentrated within the San Mateo Wilderness Area of the

Santa Ana Mountains within USFS Lands.

Objective 1: Include within the MSHCP Conservation Area

71,290 acres of suitable Habitat (chaparral and

coastal sage scrub within the Santa Ana Mountains

Bioregion).

Objective 2: Include within the MSHCP Conservation Area the

three populations within the San Mateo Wilderness

Area of the Santa Ana Mountains.

Conservation for this species will be

achieved by inclusion of at least 71,290

acres of suitable Conserved Habitat and

the three known localities (one Core Area)

within large blocks of Habitat in the

MSHCP Conservation Area.

Approximately 26,740 acres (27

percent) of potential Habitat for

sticky-leaved dudleya would not be

included in the MSHCP Conservation

Area. There is one known population

cluster of this species in the San

Mateo Wilderness. No known

undisputed populations occur outside

None 8 Reserve Managers will avoid or minimize adverse effects to

sticky-leaved dudleya to the maximum extent practicable.

Reserve Managers will manage known and future occurrences

of this species where rock climbing is allowed or proposed.

Page 144: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-144

This species is designated as a Forest Sensitive Species

which can be managed at the site-specific level. Forest

Service Sensitive Species are protected through the

implementation of Forest Plans and the biological

evaluation (BE) process, which considers the potential

effects of Forest Service activities on these species.

the MSHCP Conservation Area.

thread-leaved brodiaea

(Brodiaea filifolia)

3 Thread-leaved brodiaea is designated as a Group 3

species because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for floodplain processes. Twelve

populations of thread-leaved brodiaea are known from

western Riverside County along the San Jacinto River in

Nuevo, Perris, and the San Jacinto Wildlife Area; on Salt

Creek; on the Santa Rosa Plateau; and west of the Santa

Rosa Plateau. These populations are primarily clustered

into two complexes: one along the San Jacinto River near

Perris and Lakeview, and the other on the Santa Rosa

Plateau. The San Jacinto River floodplain supports about

half of the remaining western Riverside County

populations. A small population is known to occur in the

Old Salt Creek drainage west of Hemet.

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for

thread-leaved brodiaea will be conducted as part of the

project review process for public and private projects

within the Criteria Area where suitable Habitat is present

(see Criteria Area Species Survey Area Map, Figure 6-2 of

the MSHCP, Volume I). Thread-leaved brodiaea located

as a result of survey efforts shall be conserved in

accordance with procedures described within Section

6.3.2, MSHCP, Volume I.

Objective 1: Include within the MSHCP Conservation Area at

least 6,900 acres of suitable habitat (grassland and

playas and vernal pools within the San Jacinto

River, Mystic Lake and Salt Creek portions of the

MSHCP Conservation Area).

Objective 2: Include within the MSHCP Conservation Area the

Core Areas located at Goetz Road (EO1), Perris

Valley airport (EO2), Tenaja Road (EO3), Mesa de

Colorado (EO5), Hemet vernal pools (EO 26),

South SJWA (EO27), Squaw Mountain (EO29),

Santa Rosa ranch (EO30), Slaughterhouse (EO31),

North SJWA (EO43) and Redondo Mesa (EO 52).

Objective 3: Surveys for this species will be conducted as part

of the project review process for public and private

projects in the Criteria Area where suitable habitat

is present (see Criteria Area Species Survey Area

Map, Figure 6-2 of the MSHCP, Volume I). This

species located as a result of survey efforts shall

be conserved in accordance with procedures

described within Section 6.3.2, MSHCP, Volume I.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along the San Jacinto River consistent

with Objective 1. Floodplain processes will be

maintained along the river in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change. A potential future flood control project

along the San Jacinto River designed and

constructed consistent with the criteria for the San

Jacinto River project presented in Section 7.0 of

the MSHCP, Volume I and with the Area Plan

Subunit guidelines for Subunit 1 of the

Conservation for this species will be

achieved by inclusion of at least 6,900

acres of suitable Conserved Habitat and

the 12 known localities (including both

core locations) within large blocks of

Habitat in the MSHCP Conservation Area.

In addition, implementation of Objective 3

for this species will provide new data to

guide Reserve Assembly, management

and monitoring.

Approximately 1,370 acres (17

percent) of potential Habitat for

thread-leaved brodiaea will be outside

the MSHCP Conservation Area. Nine

of the 18 occurrences will not be

conserved in the MSHCP Conservation

Area.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and enhancing the floodplain

processes of the San Jacinto River, Mystic Lake and upper Salt

Creek, including intermittent flooding and periodic pooling.

Particular management emphasis will be given to preventing

alteration of hydrology and floodplain dynamics, farming, fire and

fire suppression activities, off-road vehicle use, grazing and

competition from non-native plant species.

Page 145: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-145

Lakeview/Nuevo Area Plan and Subunit 4 of the

Mead Valley Area Plan will be considered to be

consistent with this objective.

Objective 5: Include within the MSHCP Conservation Area the

floodplain along Salt Creek generally in its existing

condition from Warren Road to Newport Road and

the vernal pools in Upper Salt Creek west of

Hemet. Floodplain processes will be maintained in

order to provide for the distribution of the species

to shift over time as hydrologic conditions and

seed bank sources change.

Vail Lake ceanothus

(Ceanothus ophiochilus)

3 Vail Lake ceanothus is designated as a Group 3 species

because of its highly restricted geographic distribution

within the Plan Area (specifically Vail Lake and the Agua

Tibia Wilderness).

This is a species on the Additional Survey Needs and

Procedures (Section 6.3.2) list and surveys for Vail Lake

ceanothus will be conducted as part of the project review

process for public and private projects within the Criteria

Area where suitable Habitat is present (see Criteria Area

Species Survey Area Map, Figure 6-2 of the MSHCP,

Volume I). Vail Lake ceanothus located as a result of

survey efforts shall be conserved in accordance with

procedures described within Section 6.3.2, MSHCP,

Volume I.

Objective 1: Include within the MSHCP Conservation Area at

least 13,290 acres of suitable Habitat (chaparral in

the vicinity of Vail Lake and the Agua Tibia

Wilderness).

Objective 2: Include within the MSHCP Conservation Area at

least three core locations in the vicinity of Vail Lake

and the Agua Tibia Wilderness area.

Objective 3: Surveys for this species will be conducted as part

of the project review process for public and private

projects within the Criteria Area where suitable

Habitat is present (see Criteria Area Species

Survey Area Map, Figure 6-2 of the MSHCP,

Volume I). This species located as a result of

survey efforts shall be conserved in accordance

with procedures described within Section 6.3.2,

MSHCP, Volume I.

Conservation for this species will be

achieved by inclusion of at least 13,290

acres of suitable Conserved Habitat and

three known localities (representing 54

records) within large blocks of Habitat in

the MSHCP Conservation Area. In

addition, implementation of Objective 3 for

this species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 3,350 acres of potential

Habitat for Vail Lake ceanothus will be

outside the MSHCP Conservation

Area. All of the known locations of

this species will be conserved.

Yes, see Section

6.3.2 (Additional

Survey Needs and

Procedures)

8 General Management Measure 4. Reserve Managers will

manage the known and future occurrences of this species for

competition with non-native species, flood control activities and

alteration of the natural fire regime.

vernal barley

(Hordeum intercedens)

2 Vernal barley is designated as a Group 2 species because

of its limited geographic distribution and specialized

Habitat requirements and management requirements for

floodplain processes. Twelve populations of vernal barley

are known from western Riverside County along the San

Jacinto River in Nuevo, Perris, and the San Jacinto

Wildlife Area; on Salt Creek; on the Santa Rosa Plateau;

and west of the Santa Rosa Plateau. These populations

are primarily clustered into two complexes: one along the

San Jacinto River near Perris and Lakeview, and the other

in the upper Salt Creek drainage west of Hemet. The San

Objective 1: Include within the MSHCP Conservation Area at

least 6,900 acres of suitable habitat (grassland and

playas and vernal pools within the San Jacinto

River, Mystic Lake and Salt Creek portions of the

MSHCP Conservation Area).

Objective 2: Include within the MSHCP Conservation Area at

least four locations (including three core locations)

of vernal barley: the San Jacinto Wildlife Area, the

middle segment of the San Jacinto River from

Ramona Expressway south to Railroad Canyon, the

Conservation for this species will be

achieved by inclusion of at least 6,900

acres of suitable Conserved Habitat and

three core localities (middle segment of

the San Jacinto River, the San Jacinto

Wildlife Area, and upper Salt Creek) within

large blocks of Habitat in the MSHCP

Conservation Area. In addition,

implementation of Objective 3 for this

species will provide new data to guide

Reserve Assembly, management and

Approximately 1,370 acres (17

percent) of potential Habitat for vernal

barley will be outside the MSHCP

Conservation Area. No known extant

populations will be outside the MSHCP

Conservation Area.

None 8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and enhancing the floodplain

processes of the San Jacinto River, Mystic Lake and upper Salt

Creek, including intermittent flooding and periodic pooling.

Particular management emphasis will be given to preventing

alteration of hydrology and floodplain dynamics, farming, fire and

fire suppression activities, off-road vehicle use, grazing and

competition from non-native plant species.

Page 146: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-146

Jacinto River floodplain supports about half of the

remaining western Riverside County populations. A small

population is known to occur near Nichols Road at

Alberhill.

upper Salt Creek drainage west of Hemet, and the

occurrence near Nichols Road at Alberhill.

Objective 3: Include within the MSHCP Conservation Area the

floodplain along the San Jacinto River consistent

with Objective 1. Floodplain processes will be

maintained along the river in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change. A potential future flood control project

along the San Jacinto River designed and

constructed consistent with the criteria for the San

Jacinto River project presented in Section 7.0 of

the MSHCP, Volume I and with the Area Plan

Subunit guidelines for Subunit 1 of the

Lakeview/Nuevo Area Plan and Subunit 4 of the

Mead Valley Area Plan will be considered to be

consistent with this objective.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along Salt Creek generally in its existing

condition from Warren Road to Newport Road and

the vernal pools in Upper Salt Creek west of

Hemet. Floodplain processes will be maintained in

order to provide for the distribution of the species

to shift over time as hydrologic conditions and

seed bank sources change.

monitoring. Implementation of Objective 4

for this species will maintain hydrological

conditions in the floodplain along Salt

Creek in its existing condition from Warren

Road to Newport Road and the vernal

pools in Upper Salt Creek west of Hemet.

Wright’s trichocoronis

(Trichocoronis wrightii

var. wrightii)

3 Wright's trichocoronis is designated as a Group 3 species

because of its limited geographic distribution and

specialized Habitat requirements and management

requirements for floodplain processes. This species is

primarily restricted to the alkali floodplains of the San

Jacinto River in association with Willows, Domino and

Traver soils. Wright's trichocoronis occurs as two core

locations along the middle segment of the San Jacinto

River and in the San Jacinto Wildlife Area.

This is a species on the Narrow Endemic Plant List

(Section 6.1.3) and surveys for Wright's trichocoronis will

be conducted as part of the project review process for

public and private projects within the Narrow Endemic

Plant Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species Survey Area

Objective 1: Include within the MSHCP Conservation Area at

least 6,900 acres of suitable habitat (grassland and

playas and vernal pools including Willow, Domino

and Traver soils, along the San Jacinto River, at

Mystic Lake, and Salt Creek).

Objective 2: Include within the MSHCP Conservation Area at

least four of the known locations along the San

Jacinto River from the vicinity of the Ramona

Expressway and San Jacinto Wildlife Area and

along the northern shore of Mystic Lake.

Objective 3: Surveys for Wright's trichocoronis will be

conducted as part of the project review process for

public and private projects within the Narrow

Endemic Plant Species survey area where suitable

Conservation for this species will be

achieved by inclusion of at least 6,900

acres of suitable Conserved Habitat and

two core localities (middle segment of the

San Jacinto River and the San Jacinto

Wildlife Area) within large blocks of Habitat

in the MSHCP Conservation Area. In

addition, implementation of Objective 3 for

this species will provide new data to guide

Reserve Assembly, management and

monitoring. Implementation of Objectives

4 and 5 for this species will maintain

alluvial processes (floodplain hydrology

and flooding) upon which this species

depends.

Approximately 1,370 acres of potential

Habitat for Wright's trichocoronis will

be outside the MSHCP Conservation

Area. It is important to note that the

potential Habitat occurring outside of

the MSHCP Conservation Area is

located within the Narrow Endemic

Plant Species survey area. None of

the known populations will be located

outside the MSHCP Conservation

Area.

Yes, see Section

6.1.3 (Protection

o f N a r r o w

Endemic Plant

Species)

8 General Management Measure 4. Reserve Managers will

ensure Habitat support functions within the MSHCP

Conservation Area by maintaining and enhancing the floodplain

processes of the San Jacinto River, Mystic Lake and upper Salt

Creek, including intermittent flooding and periodic pooling.

Particular management emphasis will be given to preventing

alteration of hydrology and floodplain dynamics, farming, fire and

fire suppression activities, off-road vehicle use, grazing and

competition from non-native plant species.

Page 147: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-147

Map, Figure 6-1 of the MSHCP, Volume I). Wright's

trichocoronis located as a result of survey efforts shall be

conserved in accordance with procedures described

within Section 6.1.3, MSHCP, Volume I.

habitat is present (see Narrow Endemic Plant

Species Survey Area Map, Figure 6-1 of the

MSHCP, Volume I). Wright's trichocoronis located

as a result of survey efforts shall be conserved in

accordance with procedures described within

Section 6.1.3, MSHCP, Volume I.

Objective 4: Include within the MSHCP Conservation Area the

floodplain along the San Jacinto River consistent

with Objective 1. Floodplain processes will be

maintained along the river in order to provide for

the distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change. A potential future flood control project

along the San Jacinto River designed and

constructed consistent with the criteria for the San

Jacinto River project presented in Section 7.0 of

the MSHCP, Volume I and with the Area Plan

Subunit guidelines for Subunit 1 of the

Lakeview/Nuevo Area Plan and Subunit 4 of the

Mead Valley Area Plan will be considered to be

consistent with this objective.

Objective 5: Include within the MSHCP Conservation Area the

floodplain along Salt Creek generally in its existing

condition from Warren Road to Newport Road and

the vernal pools in Upper Salt Creek west of

Hemet. Floodplain processes will be maintained

within the linkage in order to provide for the

distribution of the species to shift over time as

hydrologic conditions and seed bank sources

change.

Yucaipa onion

(Allium marvinii)

3 Yucaipa onion is designated as a Group 3 species

because of its specialized Habitat requirements and

limited distribution. This species is dependent on clay

openings within chaparral Habitat at elevations between

760 and 1065 m. The distribution of this species within

the Plan Area is unknown at this time. Three historic

occurrences date from 1904 to 1921. No recent

occurrences have been positively identified within the

Plan Area.

Objective 1: Include within the MSHCP Conservation Area at

least 1,200 acres of suitable Habitat (chaparral

between 760 and 1065 m in the San Bernardino

Mountains Bioregion).

Objective 2: Surveys for the Yucaipa onion will be conducted as

part of the project review process for public and

private projects within the Narrow Endemic Plant

Species survey area where suitable Habitat is

present (see Narrow Endemic Plant Species

Conservation for this species will be

achieved by inclusion of at least 1,200

acres of suitable Habitat in the MSHCP

Conservation Area. The three historic

occurrences may be included in the

MSHCP Conservation Area. In addition,

implementation of Objective 2 for this

species will provide new data to guide

Reserve Assembly, management and

monitoring.

Approximately 2,460 acres (67%) of

potential Habitat will not be conserved.

It is not known whether the three

historic occurrences are included

within the MSHCP Conservation Area.

It is important to note, however, that

this potential Habitat is included within

the Narrow Endemic Plant Species

survey area and Conservation of this

potential Habitat and three historic

Yes, see Section

6.1.3 (Protection

o f N a r r o w

Endemic Plant

Species)

8 Unknown.

Page 148: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

TABLE 9-2. SPECIES CONSERVATION SUMMARY

MONITORING

COMMON NAME/

SCIENTIFIC NAME

GROUP

DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES

CONSERVATION ANALYSIS

SUMMARY INCIDENTAL TAKE

SURVEY

REQUIREMENTS

Survey

Distribution

At Least

Every “X”

Years

Survey

Reproduction

Every “X”

Years MANAGEMENT ACTIVITIES SUMMARY

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-148

This is a species on the Narrow Endemic Plant List

(Section 6.1.3) and surveys for Yucaipa onion will be

conducted as part of the project review process for public

and private projects within the Narrow Endemic Plant

Species survey area where suitable Habitat is present

(see Narrow Endemic Plant Species Survey Area Map,

Figure 6-1 of the MSHCP, Volume I). Yucaipa onion

located as a result of survey efforts shall be conserved in

accordance with procedures described within Section

6.1.3, MSHCP, Volume I.

Survey Area Map, Figure 6-1 of the MSHCP,

Volume I). Yucaipa onion located as a result of

survey efforts shall be conserved in accordance

with procedures described within Section 6.1.3,

MSHCP, Volume I.

occurrences, if still extant and not

located in the MSHCP Conservation

Area, will be addressed in accordance

with the procedures presented in the

Narrow Endemic Plant Species policy

described in Section 6.1.3 of the

MSHCP, Volume I.

Page 149: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-149

Page 150: CONSERVATION AND INCIDENTAL TAKE ESTIMATESwrcrca.conserveriverside.com/wrcrca/Permit_Docs/MSHCP_Docs/volume1/Vol... · 9.0 Conserv ation and Incident al Take Estimates VOLUME I Š

9.0 Conservation and Incidental Take Estimates

VOLUME I � SECTION 9 June 17, 2003

FINAL MSHCP 9-150