Post on 15-Mar-2020
Department of Science, Information Technology andInnovation
BioCondition Benchmarks for Regional Ecosystem Condition Assessment
Benchmarks are quantitative values for each vegetation condition attribute assessed in BioCondition (Eyre et al. 2015), and
are used as a reference for comparison purposes within and between regional ecosystems. Benchmarks are subject to
regular review and updates based on additional data.
BioCondition benchmarks are compiled from quantitative site data from reference sites, data from the Queensland
Herbarium’s CORVEG database and expert opinion, and are specific to each regional ecosystem vegetation community.
BioCondition benchmarks aim to reflect the natural variability in structure and floristic composition under a range of climatic
and natural disturbance regimes throughout the geographic extent of a regional ecosystem. However, data from local
reference sites should be collected where possible to account for spatial and temporal (seasonal and annual) variability
when undertaking BioCondition assessments.
In some rangeland ecosystems, seasonal conditions can account for wide variation in the values obtained for someattributes assessed in BioCondition. Therefore in these ecosystems a range is expressed instead of a single benchmarkvalue. When using rangeland regional ecosystem benchmarks to assess condition, the lower value of the benchmark rangecan be used as the benchmark, or if assessing a site under good seasonal conditions then use of the average value as thebenchmark.
Definitions
Attribute Brief description
Recruitment of dominant canopyspecies
Proportion of the dominant canopy (ecologically dominant layer) species withevidence of recruitment.
Native plant species richness The number of species expected in four life form groups, i.e. tree, shrub, grass,forbs and other species
Tree strata:
• Canopy
• Sub-canopy
• Large trees
A tree is defined as a woody plant, single stemmed >2 m tall.
• Height – median height in metres
• Cover - percentage cover (assessed as opaque crowns)
• DBH (Diameter at Breast Height) – For large trees only; dbh threshold(cm).
• Typical tree species
Shrub strata:
• Native shrub cover
A shrub is defined as a woody plant, multi-stemmed from base or singlestemmed and <2 m tall.
• Cover - percentage cover (assessed as opaque crowns)
• Typical shrub species
Ground cover:
• Native perennial grass cover
• Litter cover
• Cover – percentage cover (assessed as projected foliage cover)
• Typical ground cover species
Coarse woody debris • Total length in metres of woody debris > 10 cm diameter and > 0.5 mper hectare
Non-native plant cover • Cover – The percentage cover of non-native plants
• Typical non-native species listed with common names and declaredpest status1
Conditions of use
BioCondition benchmarks have been developed from information published by the State of Queensland and remain theproperty of the State of Queensland. BioCondition benchmarks are not to be included on internet sites other than theQueensland Government website.
Users should reference information contained in the BioCondition benchmarks as: Queensland Herbarium (year*)BioCondition benchmarks for Regional Ecosystems, (month, year*) (Department of Science, Information Technology andInnovation: Brisbane). * Date shown in footnote of individual descriptions.
While every effort has been made to ensure the information presented is as reliable as possible, the State of Queenslandaccepts no liability and gives no assurance in respect of its accuracy and shall not be liable for any loss or damage arisingfrom its use. BioCondition benchmarks are based on a combination of quantitative and qualitative information and shouldbe used as a guide only. BioCondition benchmarks are subject to review and are updated as additional data becomesavailable.
For more information, contact:
Queensland Herbarium, DSITIBrisbane Botanic Gardens (Mt Coot-tha), Mt Coot-tha Road, Toowong QLD 4066
Last reviewed 5/10/2016
1 Declared—either: a) a plant or animal species listed in Schedule 2 of the Biosecurity Act 2014; or b) an exotic plant that is listed in a localgovernment pest management plan.
Table of Contents4.3.14.3.24.3.34.3.44.3.84.3.104.3.124.3.144.3.154.3.164.3.174.3.184.3.194.3.204.4.14.5.14.5.24.5.34.5.44.5.54.5.64.5.84.5.94.7.14.7.24.7.44.9.14.9.1a4.9.24.9.44.9.54.9.74.9.7a4.9.84.9.104.9.114.9.124.9.134.9.144.9.154.9.16
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4.9.17 45
BioCondition benchmark for regional ecosystem condition assessment
4.3.1Mitchell Grass Downs Regional ecosystem:
Eucalyptus camaldulensis +/- Melaleuca spp. woodland on drainage lines
Bru
ce W
ilson
Tree: 2-7
Shrub: 1-7
Grass: 2-19
Forbs and other: 10-27
Tree canopy median height (m): 3-18
Tree canopy cover (%): 10-30
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-1
Typical shrub species: Acacia salicina (doolan), Muehlenbeckia florulenta (lignum)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Dichanthium fecundum (curly bluegrass), Leptochloa digitata (umbrella canegrass), Bothriochloa ewartiana (desert bluegrass), Cyperus victoriensis, Aeschynomene indica (budda pea)
Native perennial grass cover (%): 10-30
Coarse woody debris:
Non-native plant cover
Typical non-native species: Parkinsonia aculeata^ (Jerusalem thorn), Acacia farnesiana^ (mimosa bush)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Eucalyptus camaldulensis (river red gum), Eucalyptus coolabah (coolabah), Melaleuca argentea (silver tea-tree)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.2Mitchell Grass Downs Regional ecosystem:
Eucalyptus camaldulensis +/- E. coolabah woodland on drainage lines
Melin
da L
aid
law
Tree: 2-8
Shrub: 4-12
Grass: 9-19
Forbs and other: 12-30
Tree canopy median height (m): 7-14
Tree canopy cover (%): 5-72
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 54
Number of large eucalypt trees per hectare: 12
Large non-eucalypt tree dbh threshold (cm): 26
Number of large non-eucalypt trees per hectare: 72
Native shrub cover (%): 0-15
Typical shrub species: Acacia tetragonophylla (dead finish), Eremophila bignoniiflora (eurah)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Dichanthium fecundum (curly bluegrass), Leptochloa digitata (umbrella canegrass), Bothriochloa ewartiana (desert bluegrass), Cyperus victoriensis, Alternanthera nodiflora (joyweed)
Native perennial grass cover (%): 5-40
Coarse woody debris:
Non-native plant cover
Typical non-native species: Acacia farnesiana^ (mimosa bush)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: 446
Typical tree species: Eucalyptus camaldulensis (river red gum), Eucalyptus coolabah (coolabah), Acacia stenophylla (belalie)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): 30
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.3Mitchell Grass Downs Regional ecosystem:
Eucalyptus coolabah, E. camaldulensis +/- Lysiphyllum gilvum open-woodland on drainage lines
Melin
da L
aid
law
Tree: 0-7
Shrub: 1-9
Grass: 6-27
Forbs and other: 5-39
Tree canopy median height (m): 5-15
Tree canopy cover (%): 0-65
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 38-50
Number of large eucalypt trees per hectare: 1-14
Large non-eucalypt tree dbh threshold (cm): 20-25
Number of large non-eucalypt trees per hectare: 0-26
Native shrub cover (%): 0-25
Typical shrub species: Eremophila maculata, Chenopodium auricomum (Queensland blue bush), Muehlenbeckia florulenta (lignum)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Paspalidium jubiflorum (warrego grass), Leptochloa digitata (umbrella canegrass), Bothriochloa ewartiana (desert bluegrass), Cyperus bifax (western nutgrass), Alternanthera nodiflora (joyweed)
Native perennial grass cover (%): 10-30
Coarse woody debris:
Non-native plant cover
Typical non-native species: Pennisetum ciliare^ (buffel grass)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: 15-299
Typical tree species: Eucalyptus camaldulensis (river red gum), Eucalyptus coolabah (coolabah), Acacia stenophylla (belalie)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): 8-48
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.4Mitchell Grass Downs Regional ecosystem:
Eucalyptus coolabah open-woodland on drainage lines/plains
Melin
da L
aid
law
Tree: 1-7
Shrub: 3-4
Grass: 5-19
Forbs and other: 10-19
Tree canopy median height (m): 3-16
Tree canopy cover (%): 2-46
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 35-47
Number of large eucalypt trees per hectare: 8-10
Large non-eucalypt tree dbh threshold (cm): 20-37
Number of large non-eucalypt trees per hectare: 0-2
Native shrub cover (%): 0-10
Typical shrub species: Eremophila maculata, Acacia victoriae (gundabluie)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Paspalidium jubiflorum (warrego grass), Leptochloa digitata (umbrella canegrass), Brachyachne convergens (common native couch), Cyperus bifax (western nutgrass), Alternanthera nodiflora (joyweed)
Native perennial grass cover (%): 15-30
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: 15-193
Typical tree species: Eucalyptus coolabah (coolabah), Eucalyptus camaldulensis (river red gum), Acacia stenophylla (belalie)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): 27
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.8Mitchell Grass Downs Regional ecosystem:
Acacia cambagei low woodland on braided channels or alluvial plains
Bru
ce W
ilson
Tree: 2-4
Shrub: 2-8
Grass: 5-29
Forbs and other: 5-30
Tree canopy median height (m): 3-11
Tree canopy cover (%): 0-30
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-10
Typical shrub species: Acacia cambagei (gidgee), Apophyllum anomalum (broom bush), Carissa lanceolata (conkle berry)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla elymoides (hoop mitchell grass), Astrebla pectinata (barley mitchell grass), Eulalia aurea (silky browntop), Cyperus victoriensis, Goodenia fascicularis (fan flower)
Native perennial grass cover (%): 10-30
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia cambagei (gidgee), Eucalyptus coolabah (coolabah), Atalaya hemiglauca (western whitewood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.10Mitchell Grass Downs Regional ecosystem:
Corymbia terminalis +/- Lysiphyllum gilvum and Acacia victoriae low open-woodland on alluvium
V.J.Neldner
Tree: 4
Shrub: 6
Grass: 11
Forbs and other: 7
Tree canopy median height (m): 3-7
Tree canopy cover (%): 0-5
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-5
Typical shrub species: Acacia victoriae (gundabluie), Apophyllum anomalum (broom bush), Capparis nummularia
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Aristida holathera (erect kerosene grass), Dichanthium sericeum (Queensland bluegrass), Enneapogon polyphyllus (leafy nine-awn), Cleome viscosa (tick-weed), Evolvulus alsinoides (tropical speedwell)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Corymbia terminalis (long-fruited bloodwood), Lysiphyllum gilvum (bauhinia), Atalaya hemiglauca (western whitewood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.12Mitchell Grass Downs Regional ecosystem:
Chenopodium auricomum +/- Muehlenbeckia florulenta open-shrubland on swamps
Melin
da L
aid
law
Tree: 1-2
Shrub: 1-4
Grass: 5-10
Forbs and other: 14-25
Tree canopy median height (m): 3-8
Tree canopy cover (%): 0-1
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 5-21
Typical shrub species: Chenopodium auricomum (Queensland blue bush), Acacia stenophylla (belalie), Muehlenbeckia florulenta (lignum)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Eragrostis setifolia (neverfail grass), Sporobolus mitchellii (rat's tail couch), Echinochloa turneriana (channel millet), Eleocharis pallens (pale spikerush), Alternanthera nodiflora (joyweed)
Native perennial grass cover (%): 5-15
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: 0
Typical tree species: Eucalyptus coolabah (coolabah), Eremophila bignoniiflora (eurah)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): 6
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.14Mitchell Grass Downs Regional ecosystem:
Astrebla lappacea, Astrebla spp. +/- Eulalia aurea grassland on alluvium
Melin
da L
aid
law
Tree: 0-3
Shrub: 0-7
Grass: 3-16
Forbs and other: 3-25
Tree canopy median height (m): 6-8
Tree canopy cover (%): 0-1
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-1
Typical shrub species: Acacia victoriae (gundabluie), Apophyllum anomalum (broom bush), Senna phyllodinea
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla lappacea (curly mitchell grass), Astrebla pectinata (barley mitchell grass), Astrebla elymoides (hoop mitchell grass), Cyperus victoriensis, Goodenia fascicularis (fan flower)
Native perennial grass cover (%): 10-40
Coarse woody debris:
Non-native plant cover
Typical non-native species: Parkinsonia aculeata^ (Jerusalem thorn), Acacia nilotica subsp. indica^
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Eucalyptus coolabah (coolabah), Acacia tephrina (boree), Acacia stenophylla (belalie)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): 26
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.15Mitchell Grass Downs Regional ecosystem:
Astrebla squarrosa +/- Dichanthium spp. +/- Eulalia aurea grassland on alluvium
V.J.Neldner
Tree: 0-2
Shrub: 4
Grass: 6-19
Forbs and other: 9-29
Tree canopy median height (m): 4-7
Tree canopy cover (%): 0-1
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-1
Typical shrub species: Chenopodium auricomum (Queensland blue bush), Muehlenbeckia florulenta (lignum), Eremophila maculata
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla squarrosa (bull mitchell grass), Astrebla lappacea (curly mitchell grass), Astrebla elymoides (hoop mitchell grass), Cyperus victoriensis, Goodenia fascicularis (fan flower)
Native perennial grass cover (%): 0-60
Coarse woody debris:
Non-native plant cover
Typical non-native species: Parkinsonia aculeata^ (Jerusalem thorn)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Eucalyptus coolabah (coolabah)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.16Mitchell Grass Downs Regional ecosystem:
Astrebla elymoides +/- A. squarrosa +/- Aristida latifolia grassland on alluvium
Tree: 2
Shrub: 4
Grass: 19
Forbs and other: 29
Tree canopy median height (m): 4-7
Tree canopy cover (%): 0-1
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-1
Typical shrub species: Chenopodium auricomum (Queensland blue bush), Muehlenbeckia florulenta (lignum), Sesbania chippendalei
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla elymoides (hoop mitchell grass), Astrebla squarrosa (bull mitchell grass), Aristida latifolia (feathertop wiregrass), Abutilon malvifolium (bastard marshmallow), Goodenia fascicularis (fan flower)
Native perennial grass cover (%): 10-30
Coarse woody debris:
Non-native plant cover
Typical non-native species: Parkinsonia aculeata^ (Jerusalem thorn)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Eucalyptus coolabah (coolabah)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.17Mitchell Grass Downs Regional ecosystem:
Astrebla pectinata +/- Astrebla spp. +/- Aristida latifolia grassland on alluvium
Melin
da L
aid
law
Tree: 0-1
Shrub: 0-7
Grass: 7-18
Forbs and other: 4-20
Tree canopy median height (m): 6-8
Tree canopy cover (%): 0-1
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-1
Typical shrub species: Acacia victoriae (gundabluie), Eremophila maculata, Senna phyllodinea
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla pectinata (barley mitchell grass), Astrebla lappacea (curly mitchell grass), Astrebla elymoides (hoop mitchell grass), Crotalaria dissitiflora, Goodenia fascicularis (fan flower)
Native perennial grass cover (%): 0-73
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Eucalyptus coolabah (coolabah)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): 7
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.18Mitchell Grass Downs Regional ecosystem:
Eulalia aurea, Astrebla squarrosa +/- Astrebla spp. grassland on alluvial plains
V.J.Neldner
Tree: 1
Shrub: 0
Grass: 22
Forbs and other: 25
Tree canopy median height (m): 6-10
Tree canopy cover (%): 0-1
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Dichanthium fecundum (curly bluegrass), Eulalia aurea (silky browntop), Dichanthium sericeum subsp. polystachyum, Aeschynomene indica (budda pea), Neptunia monosperma
Native perennial grass cover (%): 10-40
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Eucalyptus coolabah (coolabah)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.19Mitchell Grass Downs Regional ecosystem:
Dichanthium spp., Eulalia aurea, Astrebla spp. grassland on alluvium
Tree: 1
Shrub: 0
Grass: 3-22
Forbs and other: 25
Tree canopy median height (m): 6-10
Tree canopy cover (%): 0-1
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Dichanthium fecundum (curly bluegrass), Dichanthium sericeum subsp. polystachyum, Eulalia aurea (silky browntop), Aeschynomene indica (budda pea), Sclerolaena anisacanthoides (yellow burr)
Native perennial grass cover (%): 10-40
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Eucalyptus coolabah (coolabah)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.3.20Mitchell Grass Downs Regional ecosystem:
Atriplex spp. and Sclerolaena spp. +/- Astrebla spp. +/- short grasses +/- forbs, open-herbland on
braided or flat alluvial plainsM
elin
da L
aid
law
Tree: 0-5
Shrub: 0-8
Grass: 3-17
Forbs and other: 5-30
Tree canopy median height (m): 0-10
Tree canopy cover (%): 0-10
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-1
Typical shrub species: Chenopodium auricomum (Queensland blue bush), Senna artemisioides subsp. oligophylla, Senna phyllodinea
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Sporobolus mitchellii (rat's tail couch), Astrebla elymoides (hoop mitchell grass), Eragrostis setifolia (neverfail grass), Pycnosorus pleiocephalus, Goodenia fascicularis (fan flower)
Native perennial grass cover (%): 0-15
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Acacia cambagei (gidgee), Eucalyptus coolabah (coolabah), Eucalyptus camaldulensis (river red gum)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): 6
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.4.1Mitchell Grass Downs Regional ecosystem:
Astrebla pectinata +/- Aristida latifolia +/- Eulalia aurea grassland on Tertiary sediments overlying
limestoneV.J.Neldner
Tree: 0
Shrub: 0-2
Grass: 7-11
Forbs and other: 13-22
Tree canopy median height (m): 0
Tree canopy cover (%): 0
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-1
Typical shrub species: Acacia victoriae (gundabluie)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla pectinata (barley mitchell grass), Astrebla elymoides (hoop mitchell grass), Astrebla lappacea (curly mitchell grass), Sida trichopoda (high sida), Ipomoea lonchophylla (common cowvine)
Native perennial grass cover (%): 0-40
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.5.1Mitchell Grass Downs Regional ecosystem:
Acacia aneura +/- Atalaya hemiglauca +/- Grevillea striata low woodland on sand plains
Miria
m S
chm
eid
er
Tree: 1-3
Shrub: 2-7
Grass: 7-20
Forbs and other: 2-15
Tree canopy median height (m): 4-8
Tree canopy cover (%): 0-35
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-2
Typical shrub species: Senna artemisioides subsp. helmsii, Eremophila latrobei (crimson turkeybush), Eremophila bowmanii (silver turkeybush)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Aristida obscura, Enneapogon polyphyllus (leafy nine-awn), Thyridolepis mitchelliana (mulga mitchell grass), Sida platycalyx (lifesaver burr), Tribulus astrocarpus
Native perennial grass cover (%): 5-15
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia aneura (mulga), Atalaya hemiglauca (western whitewood), Grevillea striata (beefwood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.5.2Mitchell Grass Downs Regional ecosystem:
Acacia aneura tall open-shrubland on Quaternary sand sheets
Tree: 5
Shrub: 6
Grass: 7
Forbs and other: 7
Tree canopy median height (m): 8-15
Tree canopy cover (%): 0-20
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-25
Typical shrub species: Senna artemisioides subsp. oligophylla, Eremophila latrobei (crimson turkeybush), Acacia sericophylla
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Aristida holathera (erect kerosene grass), Enneapogon polyphyllus (leafy nine-awn), Thyridolepis xerophila, Sida platycalyx (lifesaver burr), Sclerolaena cornishiana
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia aneura (mulga), Atalaya hemiglauca (western whitewood), Grevillea striata (beefwood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.5.3Mitchell Grass Downs Regional ecosystem:
Acacia aneura, Triodia brizoides or Triodia molesta tall open-shrubland on Tertiary sand sheets
V.J.Neldner
Tree: 1-3
Shrub: 3-8
Grass: 3-10
Forbs and other: 3-10
Tree canopy median height (m): 4-7
Tree canopy cover (%): 5-30
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 1-5
Typical shrub species: Senna artemisioides subsp. oligophylla, Senna artemisioides subsp. helmsii, Acacia ligulata (umbrella wattle)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Triodia brizoides, Triodia molesta, Themeda triandra (kangaroo grass), Sida platycalyx (lifesaver burr), Evolvulus alsinoides (tropical speedwell)
Native perennial grass cover (%): 0-15
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia aneura (mulga), Acacia excelsa (ironwood), Grevillea striata (beefwood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.5.4Mitchell Grass Downs Regional ecosystem:
Archidendropsis basaltica and/or Acacia aneura +/- Corymbia terminalis low open-woodland on
sand plainsN
ick C
uff
Tree: 3-13
Shrub: 4-9
Grass: 7-17
Forbs and other: 4-16
Tree canopy median height (m): 4-13
Tree canopy cover (%): 0-12
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-10
Typical shrub species: Senna artemisioides (silver desert cassia), Capparis lasiantha (nipan), Eremophila bowmanii (silver turkeybush)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Triodia bitextura, Enneapogon polyphyllus (leafy nine-awn), Eriachne mucronata (mountain wanderie grass), Cleome viscosa (tick-weed), Indigofera linnaei (Birdsville indigo)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
Typical non-native species: Pennisetum ciliare^ (buffel grass)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Archidendropsis basaltica (red lancewood), Acacia aneura (mulga), Corymbia terminalis (long-fruited bloodwood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.5.5Mitchell Grass Downs Regional ecosystem:
Corymbia terminalis, Triodia pungens +/- Acacia spp., Senna spp., Eucalyptus spp. low open-
woodland on sand plainsH
ele
n C
arta
n
Tree: 1-8
Shrub: 7-16
Grass: 6-16
Forbs and other: 3-22
Tree canopy median height (m): 5-10
Tree canopy cover (%): 0-10
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-30
Typical shrub species: Senna artemisioides subsp. oligophylla, Senna artemisioides subsp. helmsii, Grevillea wickhamii
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Triodia pungens, Aristida holathera (erect kerosene grass), Themeda triandra (kangaroo grass), Sida platycalyx (lifesaver burr), Evolvulus alsinoides (tropical speedwell)
Native perennial grass cover (%): 10-35
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Corymbia terminalis (long-fruited bloodwood), Atalaya hemiglauca (western whitewood), Ventilago viminalis (supplejack)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.5.6Mitchell Grass Downs Regional ecosystem:
Acacia cambagei, Senna spp., Sida platycalyx tall open-shrubland on Quaternary sand sheets
Tree: 4-8
Shrub: 0-12
Grass: 4-13
Forbs and other: 4-18
Tree canopy median height (m): 3-12
Tree canopy cover (%): 1-15
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 1-19
Typical shrub species: Senna artemisioides subsp. oligophylla, Eremophila gilesii (Charleville turkeybush), Enchylaena tomentosa (ruby saltbush)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Aristida holathera var. holathera (erect kerosene grass), Eragrostis eriopoda (woollybutt), Enneapogon polyphyllus (leafy nine-awn), Sida platycalyx (lifesaver burr), Sclerolaena cornishiana
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia cambagei (gidgee), Eremophila mitchellii (false sandalwood), Flindersia maculosa (leopardwood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.5.8Mitchell Grass Downs Regional ecosystem:
Triodia pungens hummock grassland wooded with Acacia spp. +/- Eucalyptus spp. on
Quaternary sand sheets
Tree: 11
Shrub: 11-17
Grass: 4-10
Forbs and other: 4-23
Tree canopy median height (m): 4-10
Tree canopy cover (%): 0-5
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-20
Typical shrub species: Acacia adsurgens, Senna artemisioides subsp. oligophylla, Eremophila longifolia (berrigan)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Triodia pungens, Aristida jerichoensis (Jericho three-awn), Enneapogon polyphyllus (leafy nine-awn), Sida platycalyx (lifesaver burr), Sclerolaena cornishiana
Native perennial grass cover (%): 10-20
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Corymbia terminalis (long-fruited bloodwood), Atalaya hemiglauca (western whitewood), Grevillea striata (beefwood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.5.9Mitchell Grass Downs Regional ecosystem:
Acacia cambagei, Archidendropsis basaltica and mixed species open-woodland on sand plains
Tree: 7-16
Shrub: 7-10
Grass: 6-17
Forbs and other: 12-23
Tree canopy median height (m): 3-13
Tree canopy cover (%): 0-15
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-5
Typical shrub species: Acacia excelsa (ironwood), Apophyllum anomalum (broom bush), Psydrax oleifolia (wild lemon)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Aristida holathera (erect kerosene grass), Aristida jerichoensis (Jericho three-awn), Enteropogon acicularis (curly windmill grass), Sida platycalyx (lifesaver burr), Cleome viscosa (tick-weed)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
Typical non-native species: Pennisetum ciliare^ (buffel grass)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia cambagei (gidgee), Archidendropsis basaltica (red lancewood), Atalaya hemiglauca (western whitewood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.7.1Mitchell Grass Downs Regional ecosystem:
Acacia shirleyi, Triodia spp. +/- Eucalyptus spp. low woodland on scarps
V.J.Neldner
Tree: 2-3
Shrub: 6-13
Grass: 3-6
Forbs and other: 6
Tree canopy median height (m): 8-12
Tree canopy cover (%): 5-60
Tree sub-canopy median height (m): 4-6
Tree sub-canopy cover (%): 5-60
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-2
Typical shrub species: Eremophila latrobei (crimson turkeybush), Indigofera leucotricha, Acacia bivenosa
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Triodia molesta, Triodia longiceps (giant grey spinifex), Triodia brizoides, Evolvulus alsinoides (tropical speedwell), Cleome viscosa (tick-weed)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia shirleyi (lancewood), Eucalyptus leucophloia (snappy gum), Eucalyptus thozetiana (yapunyah)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.7.2Mitchell Grass Downs Regional ecosystem:
Eucalyptus normantonensis tall open-shrubland with Triodia spp. on plateau margins
Dan K
elm
an
Tree: 1-4
Shrub: 7-14
Grass: 5-11
Forbs and other: 14
Tree canopy median height (m): 3-7
Tree canopy cover (%): 0-10
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 10
Typical shrub species: Acacia ancistrocarpa, Acacia bivenosa, Acacia cowleana (Halls Creek wattle)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Triodia molesta, Triodia longiceps (giant grey spinifex), Aristida inaequiglumis, Evolvulus alsinoides (tropical speedwell), Sclerolaena cornishiana
Native perennial grass cover (%): 10-50
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Eucalyptus normantonensis (Normanton box), Corymbia aparrerinja, Eucalyptus thozetiana (yapunyah)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.7.4Mitchell Grass Downs Regional ecosystem:
Acacia cambagei tall open-shrubland with Triodia spp. +/- Senna spp. near eroding edges of
Tertiary plateausB
ruce W
ilson
Tree: 1
Shrub: 6
Grass: 9-14
Forbs and other: 10
Tree canopy median height (m): 4-8
Tree canopy cover (%): 5-10
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-1
Typical shrub species: Apophyllum anomalum (broom bush), Senna artemisioides subsp. oligophylla, Senna phyllodinea
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Triodia brizoides, Triodia longiceps (giant grey spinifex), Enteropogon acicularis (curly windmill grass), Ptilotus obovatus (silver mulla mulla), Sclerolaena lanicuspis (wooly copperburr)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia cambagei (gidgee)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.1Mitchell Grass Downs Regional ecosystem:
Astrebla lappacea +/- Aristida latifolia +/- Panicum decompositum grassland on Cretaceous
sedimentsM
elin
da L
aid
law
Tree: 0-4
Shrub: 0-5
Grass: 2-24
Forbs and other: 4-38
Tree canopy median height (m): 2-6
Tree canopy cover (%): 0-1
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-5
Typical shrub species: Senna planitiicola, Enchylaena tomentosa (ruby saltbush)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla lappacea (curly mitchell grass), Aristida latifolia (feathertop wiregrass), Panicum decompositum (native millet), Abutilon malvifolium (bastard marshmallow), Cleome viscosa (tick-weed)
Native perennial grass cover (%): 10-40
Coarse woody debris:
Non-native plant cover
Typical non-native species: Acacia nilotica subsp. indica^
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Atalaya hemiglauca (western whitewood), Flindersia maculosa (leopardwood), Ventilago viminalis (supplejack)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): 8
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.1aMitchell Grass Downs Regional ecosystem:
Aristida spp. Enneapogon spp. open-grassland wooded with scattered Atalaya hemiglauca,
Ventilago viminalis
Tree: 2-3
Shrub: 2-3
Grass: 14-16
Forbs and other: 19-24
Tree canopy median height (m): 4-8
Tree canopy cover (%): 0-1
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-1
Typical shrub species: Acacia tetragonophylla (dead finish), Senna artemisioides subsp. oligophylla, Senna glutinosa subsp. pruinosa
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Aristida latifolia (feathertop wiregrass), Enneapogon polyphyllus (leafy nine-awn), Eragrostis xerophila, Abutilon malvifolium (bastard marshmallow), Evolvulus alsinoides (tropical speedwell)
Native perennial grass cover (%): 5-20
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Atalaya hemiglauca (western whitewood), Grevillea striata (beefwood), Ventilago viminalis (supplejack)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.2Mitchell Grass Downs Regional ecosystem:
Astrebla lappacea and A. pectinata +/- A. elymoides grassland on Cretaceous sediments
Hele
n C
arta
n
Tree: 0
Shrub: 1-2
Grass: 5-25
Forbs and other: 4-25
Tree canopy median height (m): 0
Tree canopy cover (%): 0
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-1
Typical shrub species: Acacia victoriae (gundabluie), Acacia farnesiana^ (mimosa bush)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla pectinata (barley mitchell grass), Astrebla lappacea (curly mitchell grass), Enneapogon avenaceus (bottle washers), Abutilon malvifolium (bastard marshmallow), Sida trichopoda (high sida)
Native perennial grass cover (%): 10-50
Coarse woody debris:
Non-native plant cover
Typical non-native species: Portulaca oleracea (pigweed)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.4Mitchell Grass Downs Regional ecosystem:
Astrebla pectinata and herbs +/- Astrebla spp. grassland on Cretaceous sediments
Melin
da L
aid
law
Tree: 0
Shrub: 1
Grass: 6-13
Forbs and other: 14-22
Tree canopy median height (m): 0
Tree canopy cover (%): 0
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-1
Typical shrub species: Acacia farnesiana^ (mimosa bush)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla pectinata (barley mitchell grass), Astrebla lappacea (curly mitchell grass), Astrebla elymoides (hoop mitchell grass), Abutilon malvifolium (bastard marshmallow), Sida trichopoda (high sida)
Native perennial grass cover (%): 5-50
Coarse woody debris:
Non-native plant cover
Typical non-native species: Acacia farnesiana^ (mimosa bush)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.5Mitchell Grass Downs Regional ecosystem:
Astrebla lappacea and Sclerolaena spp. +/- Enneapogon spp. open-herbland on Cretaceous
sedimentsB
ruce W
ilson
Tree: 0
Shrub: 2-4
Grass: 6-19
Forbs and other: 10-27
Tree canopy median height (m): 0
Tree canopy cover (%): 0
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-1
Typical shrub species: Senna phyllodinea, Senna artemisioides subsp. oligophylla, Acacia tetragonophylla (dead finish)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla lappacea (curly mitchell grass), Astrebla elymoides (hoop mitchell grass), Enneapogon avenaceus (bottle washers), Abutilon malvifolium (bastard marshmallow), Goodenia fascicularis (fan flower)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.7Mitchell Grass Downs Regional ecosystem:
Astrebla spp. grassland wooded with Acacia tephrina +/- A. cambagei and Atalaya hemiglauca
on Cretaceous sedimentsH
ele
n C
arta
n
Tree: 3-8
Shrub: 2-6
Grass: 3-20
Forbs and other: 4-25
Tree canopy median height (m): 3-12
Tree canopy cover (%): 0-7
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-5
Typical shrub species: Eremophila maculata, Enchylaena tomentosa (ruby saltbush), Apophyllum anomalum (broom bush)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Solanum esuriale (quena), Abutilon malvifolium (bastard marshmallow), Astrebla elymoides (hoop mitchell grass), Astrebla pectinata (barley mitchell grass), Astrebla lappacea (curly mitchell grass)
Native perennial grass cover (%): 5-30
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Acacia tephrina (boree), Acacia cambagei (gidgee), Atalaya hemiglauca (western whitewood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.7aMitchell Grass Downs Regional ecosystem:
Acacia tephrina low woodland
V.J.Neldner
Tree: 5-6
Shrub: 3-6
Grass: 10-16
Forbs and other: 5-19
Tree canopy median height (m): 6-12
Tree canopy cover (%): 2-7
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-5
Typical shrub species: Apophyllum anomalum (broom bush), Enchylaena tomentosa (ruby saltbush), Eremophila maculata
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla lappacea (curly mitchell grass), Panicum decompositum (native millet), Sporobolus caroli (fairy grass), Abutilon malvifolium (bastard marshmallow), Solanum esuriale (quena)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia tephrina (boree), Acacia cambagei (gidgee), Atalaya hemiglauca (western whitewood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.8Mitchell Grass Downs Regional ecosystem:
Astrebla spp. grassland wooded with Atalaya hemiglauca +/- Alectryon oleifolius +/- Flindersia
maculosa on Cretaceous sedimentsH
ele
n C
arta
n
Tree: 4-8
Shrub: 3-5
Grass: 7-24
Forbs and other: 11-28
Tree canopy median height (m): 3-8
Tree canopy cover (%): 0-5
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): na
Number of large non-eucalypt trees per hectare: na
Native shrub cover (%): 0-2
Typical shrub species: Apophyllum anomalum (broom bush), Enchylaena tomentosa (ruby saltbush), Eremophila mitchellii (false sandalwood)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla lappacea (curly mitchell grass), Astrebla pectinata (barley mitchell grass), Astrebla elymoides (hoop mitchell grass), Abutilon malvifolium (bastard marshmallow), Solanum esuriale (quena)
Native perennial grass cover (%): 5-30
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: na
Typical tree species: Atalaya hemiglauca (western whitewood), Alectryon oleifolius subsp. elongatus (boonaree), Flindersia maculosa (leopardwood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
naRecruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.10Mitchell Grass Downs Regional ecosystem:
Acacia georginae tall open-shrubland on Cambrian limestone
Bru
ce W
ilson
Tree: 1
Shrub: 2-6
Grass: 5-14
Forbs and other: 10-23
Tree canopy median height (m): 3-6
Tree canopy cover (%): 3-10
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 1
Typical shrub species: Senna artemisioides subsp. oligophylla, Enchylaena tomentosa (ruby saltbush), Rhagodia spinescens (thorny saltbush)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Aristida latifolia (feathertop wiregrass), Enneapogon polyphyllus (leafy nine-awn), Enteropogon acicularis (curly windmill grass), Indigofera linnaei (Birdsville indigo), Solanum quadriloculatum
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia georginae (Georgina gidgee), Acacia cambagei (gidgee)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.11Mitchell Grass Downs Regional ecosystem:
Acacia cambagei low woodland with scattered shrubs such as Eremophila mitchellii and Geijera
parviflora on fresh Cretaceous sedimentsM
elin
da L
aid
law
Tree: 2-11
Shrub: 3-12
Grass: 2-26
Forbs and other: 6-34
Tree canopy median height (m): 5-11
Tree canopy cover (%): 5-51
Tree sub-canopy median height (m): 2-8
Tree sub-canopy cover (%): 0-40
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: 0
Large non-eucalypt tree dbh threshold (cm): 34
Number of large non-eucalypt trees per hectare: 30-72
Native shrub cover (%): 0-5
Typical shrub species: Apophyllum anomalum (broom bush), Enchylaena tomentosa (ruby saltbush), Santalum lanceolatum (sandalwood)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla pectinata (barley mitchell grass), Enneapogon polyphyllus (leafy nine-awn), Sporobolus actinocladus (katoora grass), Cleome viscosa (tick-weed), Sclerolaena bicornis (goathead burr)
Native perennial grass cover (%): 0-10
Coarse woody debris:
Non-native plant cover
Typical non-native species: Pennisetum ciliare^ (buffel grass)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: 465
Typical tree species: Acacia cambagei (gidgee), Flindersia maculosa (leopardwood), Alectryon oleifolius (boonaree)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): 16
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.12Mitchell Grass Downs Regional ecosystem:
Corymbia terminalis low open-woodland with Astrebla pectinata +/- Eulalia aurea on plains and
low lying areas
Tree: 4
Shrub: 6
Grass: 11
Forbs and other: 7
Tree canopy median height (m): 3-7
Tree canopy cover (%): 0-5
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-5
Typical shrub species: Apophyllum anomalum (broom bush), Acacia victoriae (gundabluie), Senna artemisioides subsp. oligophylla
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla lappacea (curly mitchell grass), Eulalia aurea (silky browntop), Chrysopogon fallax (golden beardgrass), Cleome viscosa (tick-weed), Evolvulus alsinoides (tropical speedwell)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
Typical non-native species: Pennisetum ciliare^ (buffel grass)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Corymbia terminalis (long-fruited bloodwood), Atalaya hemiglauca (western whitewood), Lysiphyllum gilvum (bauhinia)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.13Mitchell Grass Downs Regional ecosystem:
Senna artemisioides subsp. helmsii +/- S. artemisioides subsp. oligophylla +/- Acacia georginae
+/- Acacia spp. open-shrubland on tops and footslopes of Cambrian limestone residualsB
ruce W
ilson
Tree: 1-3
Shrub: 3-7
Grass: 4-10
Forbs and other: 7-11
Tree canopy median height (m): 2-4
Tree canopy cover (%): 5-10
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 10-20
Typical shrub species: Senna artemisioides subsp. helmsii, Senna artemisioides subsp. oligophylla, Scaevola laciniata
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Enneapogon avenaceus (bottle washers), Enneapogon cylindricus (jointed nine-awn), Digitaria coenicola, Cleome viscosa (tick-weed), Trichodesma zeylanicum (cattle bush)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Corymbia terminalis (long-fruited bloodwood), Acacia georginae (Georgina gidgee), Atalaya hemiglauca (western whitewood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.14Mitchell Grass Downs Regional ecosystem:
Acacia georginae or A. cambagei low open-woodland with Astrebla spp. on limestone
V.J.Neldner
Tree: 1
Shrub: 6
Grass: 6-12
Forbs and other: 2-21
Tree canopy median height (m): 3-7
Tree canopy cover (%): 5-20
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): na
Number of large eucalypt trees per hectare: na
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 1-3
Typical shrub species: Apophyllum anomalum (broom bush), Senna artemisioides subsp. oligophylla, Enchylaena tomentosa (ruby saltbush)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla pectinata (barley mitchell grass), Aristida latifolia (feathertop wiregrass), Eragrostis setifolia (neverfail grass), Rhynchosia minima (ryncho), Goodenia fascicularis (fan flower)
Native perennial grass cover (%): 0-5
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia georginae or Acacia cambagei
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.15Mitchell Grass Downs Regional ecosystem:
Acacia harpophylla tall shrubland with scattered emergent Atalaya hemiglauca +/- Eucalyptus
spp. on Cretaceous sedimentsH
ele
n C
arta
n
Tree: 2-8
Shrub: 1-4
Grass: 9-17
Forbs and other: 4-17
Tree canopy median height (m): 3-12
Tree canopy cover (%): 1-20
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-1
Typical shrub species: Apophyllum anomalum (broom bush), Eremophila deserti (Ellangowan poison bush), Santalum lanceolatum (sandalwood)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Astrebla lappacea (curly mitchell grass), Enneapogon avenaceus (bottle washers), Sporobolus actinocladus (katoora grass), Sida trichopoda (high sida)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia harpophylla (brigalow), Atalaya hemiglauca (western whitewood), Brachychiton rupestris (bottle tree)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.16Mitchell Grass Downs Regional ecosystem:
Acacia cambagei +/- scattered shrub species including Santalum lanceolatum and Eremophila
mitchellii tall open-shrublandH
ele
n C
arta
n
Tree: 1-3
Shrub: 1-6
Grass: 6-16
Forbs and other: 11-27
Tree canopy median height (m): 4-10
Tree canopy cover (%): 5-30
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-5
Typical shrub species: Acacia cambagei (gidgee), Senna artemisioides subsp. oligophylla, Carissa lanceolata (conkle berry)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Enteropogon acicularis (curly windmill grass), Bothriochloa ewartiana (desert bluegrass), Chrysopogon fallax (golden beardgrass), Abutilon malvifolium (bastard marshmallow), Sida trichopoda (high sida)
Native perennial grass cover (%): no data
Coarse woody debris:
Non-native plant cover
None listed
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia cambagei (gidgee), Flindersia maculosa (leopardwood), Santalum lanceolatum (sandalwood)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).
BioCondition benchmark for regional ecosystem condition assessment
4.9.17Mitchell Grass Downs Regional ecosystem:
Acacia harpophylla +/- A. cambagei low woodland on undulating clay plains
Tree: 2-16
Shrub: 1-6
Grass: 5-14
Forbs and other: 2-28
Tree canopy median height (m): 4-12
Tree canopy cover (%): 10-30
Tree sub-canopy median height (m): na
Tree sub-canopy cover (%): na
Large eucalypt tree dbh threshold (cm): 30
Number of large eucalypt trees per hectare: no data
Large non-eucalypt tree dbh threshold (cm): 20
Number of large non-eucalypt trees per hectare: no data
Native shrub cover (%): 0-10
Typical shrub species: Enchylaena tomentosa (ruby saltbush), Eremophila deserti (Ellangowan poison bush), Scaevola spinescens (prickly fan flower)
Benchmark
Native plant species richness:
Trees:
Shrubs:
Ground cover (%):
Typical ground cover species: Paspalidium constrictum (knottybutt grass), Enteropogon acicularis (curly windmill grass), Sporobolus caroli (fairy grass), Abutilon malvifolium (bastard marshmallow), Sida trichopoda (high sida)
Native perennial grass cover (%): 0-5
Coarse woody debris:
Non-native plant cover
Typical non-native species: Pennisetum ciliare^ (buffel grass)
Total length (m) of debris ≥ 10cm diameter and ≥0.5m in length per hectare: no data
Typical tree species: Acacia harpophylla (brigalow), Acacia cambagei (gidgee), Brachychiton rupestris (bottle tree)
Tree canopy
Tree sub-canopy
Large trees
BioCondition attribute
0
Organic litter cover (%): no data
100Recruitment of dominant canopy species (%):
29/11/2012
Selected typical species are those that characterize the ecosystem, community or stratum at reference sites. Up to five frequently occurring species for each stratum are selected. Users should refer to the regional ecosystem description database (REDD) and/or the technical description for more complete lists of characteristic species. Only the most frequently used common name is given. Other common names may be used in other regions. Declared pest species in Queensland are designated (^).