Nature conservation: information, costs and evaluation
Transcript of Nature conservation: information, costs and evaluation
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Nature Conservation:Information, Costs and Evaluation
Ross Cullen
Conserv-Vision. The next 50 yearsUniversity of Waikato
Hamilton.
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Overview
IntroductionPublic understanding of state of environmentInformation sources and qualityCost and expenditure informationOpportunity costs and financial costsTotal cost to recover a speciesEvaluation of performanceAn information-rich Conserv-Vision
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Economics
With few exceptions … its practitioners are little known to non-economists, and frequently mocked. Who can forget what Lyndon Johnson once said to John Kenneth Galbraith? "Did it ever occur to you, Ken, that making a speech on economics is a lot like pissin' down your leg. It seems hot to you, but it never does to anyone else."
Kevin R. Kosar , 2007.
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Introduction
Conservation is challengingResources are limitedFactors for successObjectives defined and achievableSufficient knowledge availableProject costs estimated Sufficient resources available
Evaluations are needed
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Public understanding of environment
Faulty understanding in New Zealand of current state of native species and ecosystems, andeffectiveness of nature conservation.
Four NZ nationwide surveys, 2000 – 2006 on perceptions of environment, Hughey et al.2000 adults asked about perceptions of environment, environment management, causes of damage.
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New Zealand’s environment is ‘clean and green. (Hughey et al,. 2006).
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Public understanding of state of environment
2000 adults also asked to rate quality of 11 aspects of NZ environment (air, groundwater, soils...)And …”how does NZ natural environment compare to other developed countries”Respondents state:
NZ species, bush and forest are in ‘good’ or ‘very good’ stateNZ environment is in better condition than is environment in other countries.
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Perceived state of New Zealand’s environment. (Hughey et al,. 2006).
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International comparison
2788 NZ taxa on threatened or endangered list. 416 increase over 2002 count.IUCN lists 155 NZ species on Red List of Threatened Species (Critically Endangered, Endangered or Vulnerable) NZ about 40TH largest number of species
Ecuador 2183, USA 1178, Australia 639, Malaysia 917, PNG 301, New Caledonia 266
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Intyernational rating of NZ biodiversity
Esty et al., 2005 provide a rating of 146 countries national environmental stewardship. Biodiversity performance measured by:
% of a country’s territory in threatened ecoregions threatened bird species as % of known breeding bird speciesthreatened mammal species as % of known mammal species threatened amphibian species as % of known breeding amphibian species score between 0 and 1 for species abundance
NZ ranked 146th of 146 countries.Biodiversity is easily NZ worst score.
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Public understanding of conservation
Native bush and forest covers only 23% of NZ land area 175km2 loss of indigenous habitat 1996-2002.
New Zealanders have overly sanguine view of native bush and forests, do not recognise how threatened are NZ species and habitat.
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Information and conservation‘..it is hard to imagine what a world of perfect information would be like.’
Joseph Stiglitz, 2002.NZ public views on state of environment are well correlated with biophyical data, and understand causes of e.g. lower water qualitySharpest divergence is on state of native plant and animal species.Why such a rosy view of biodoversity?Hughey et al., 2006 sought answers.
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Main sources of environmental information
Percent of respondents0 20 40 60 80 100
Newspapers
Television
Radio
Magazines
Internet
Scientific journals
Lectures and talks
Other
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Reliability of sources of environmental information
Percentage of respondents
-60 -40 -20 0 20 40 60 80 100
Very unreliableUnreliable
Neither reliable nor unreliableReliableVery reliable
Negative Positive
Don't know
%
Businesses
Government departments
Inter-governmental organisations
Lobby groups
Media
Regional Councils
Scientists
19
8
21
10
7
11
12
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Information and conservation
Mass media unlikely to be real culprits.Does absence of information on overall state of NZ biodiversity and trends in its state, plus continual supply of feel good stories, delude the public?
In the absence of data on ecosystem condition and trends, conservation objectives continue to be defined in terms of agency outputs rather than performance outcomes.OECD, 2007.
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Information and conservation
Publicly available information on NZ ecosystem conditions ands trends would be valuable to decision makers.
Would provide more rigourous basis for public to understand state and trends, scale of the conservation challenges, and assess progress towards conservation goals.
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Cost and Expenditure Information
Why should we be concerned about conservationcosts, surely we just get more money? EdinburghUniversity seminar attendee, 2000.
Conservation is costly, US$6 billion/year.Only 2-3% of total land administered by DoC is in intensively managed areas.Choice of conservation goals needs to consider projected costs of projects for informed decision making.Cost or expenditure information needed to assess cost effectiveness, check on efficiency of resource use.
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Cost and Expenditure Information
NZ does not require costs to be estimated for species recovery plans.Biodiversity Recovery Plan did not include projections of costs.Cost and expenditure data are elusive.Inconvenient and costly to produce.May raise expectations of fundingIts importance may not be recognized.
Absence of cost data limits ability to make best use of conservation resources.
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Costs, Funding and Expenditure
‘Cost - the amount of money required in order to accomplish a particular purpose ‘Funding’ - amount of money set aside for a particular purpose ‘Expenditure’ - $ actually used for that purpose.
Expenditures on one conservation project limit resources available for other conservation projects if they draw from the same fund.
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Variation in Costs
The range in costs of conservation projects can be startling.Balmford et al., 2003 studied variation in terrestrial conservation costs in 37 nations.Costs range over 7 orders of magnitude
<US$0.1 km-2y-1 Russian Arctic>$1m km-2y-1 W.European programmes with restoration.
Research may find large variation in NZ project costs
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Costs of managing species
Emma Moran examined costs of managing NZ speciesObtained data from 11 species managers on cost and likely expenditures 2003-2012Attempted to determine via case study what are main drivers of cost ? Asked why is a beetle cheaper than a bird?
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Management Costs of species, 2003-2012
$11,802 $106,099 $167,315$385,480
$3,330,223
$5,311,145
$5,874,754
$7,146,709
$9,314,082
$409,075
$1,640,655
$0
$1,000,000
$2,000,000
$3,000,000
$4,000,000
$5,000,000
$6,000,000
$7,000,000
$8,000,000
$9,000,000
$10,000,000
StephensIslandgroundbeetle
StephensIsland frog
climbingeverlasting
daisy
P. patulum CampbellIsland teal
flax snail kakapo mohua SouthIsland long-
tailed bat
black stilt NorthIsland
kokako
Single species programs
PV (6
%) o
f tot
al c
ost (
NZ$
200
2)
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Costs and expenditures 2003-2012
100% >100% 23% <2%
32%
19%
44%
67%
100%
26%10%$0
$1,000,000
$2,000,000
$3,000,000
$4,000,000
$5,000,000
$6,000,000
$7,000,000
$8,000,000
$9,000,000
$10,000,000
StephensIslandgroundbeetle
StephensIsland frog
climbingeverlasting
daisy
P. patulum CampbellIsland teal
flax snail kakapo mohua SouthIsland long-
tailed bat
black stilt NorthIslandkokako
Single species programs
PV (6
%) o
f tot
al a
nnua
l cos
t and
tota
l ann
ual f
undi
ng (N
Z$ 2
002)
PV of total annual cost 2003-2012 PV of expected total annual expenditure 2003-2012
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Opportunity Costs
Large range of costs, but <3 orders of magnitude.Startling differences between species in their projected expenditure to cost ratio 2003-2012.Funds allocated to a high cost species may mean many species receive little or no funding.92 % of NZ acutely and chronically threatened species do not receive enough help and 77% have no programme specifically targeting their recovery.
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Total recovery costs
Annual costs are part of the story, but recovery rate matters too.K selected species may take decades to recover, hence huge total recovery cost likely.< 4 orders of magnitude variation in total recovery costs.
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Magnitude of total recovery costs.
100+ years31 years
12 years25 years
13 years
64 years12 years11 years12 years13 years
$0
$5,000,000
$10,000,000
$15,000,000
$20,000,000
$25,000,000
$30,000,000
StephensIsland Ground
Beetle
ClimbingEverlasting
Daisy
P. patulum CampbellIsland Teal
StephensIsland Frog
Flax Snail Mohua North IslandKokako
Black Stilt Kakapo South IslandLong-tailed
Bat
Single species programs
Proj
ecte
d to
tal c
ost (
NZ$
200
2) a
nd ti
me
from
200
3
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Cost drivers
Drivers for costs might be discerned by case study.Within an order, area of habitat seems to partly explain variation in management costs.More data and more analysis needed to determine cost drivers.
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Figure 2: PV of costs of objectives as a percentage of total cost 2003-2012
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
StephensIslandgroundbeetle
StephensIsland frog
climbingeverlasting
daisy
P. patulum CampbellIsland teal
flax snail kakapo mohua South Islandlong-tailed
bat
Black Stilt North Islandkokako
Single species programs
Advocacy andeducation
Survey andmonitoring
Research
Captive breeding
Control of threat
Protection fromthreats
Breeding in wild
Translocation
Habitat restoratio
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Comments on Costs
Information on costs and expenditures is valuable.Analysis of this information can help us understand opportunity costs of choices, determine how to achieve more with current resources, allocate resources to best effect.
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EvaluationWhen it comes to evaluating the success of its interventions, the field of ecosystem protection and biodiversity conservation lags behind most other policy fields. Ferraro and Pattanayak, 2006.Lack of evaluation in nature conservation is disappointing.Evaluation requires effort and expenditure. Is it worth it?Ando et al., 1998 - consideration of both economic and ecologic factors meant could achieve habitat for 453 endangered species at one sixth of cost if solely ecologic factors considered.
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Is Evaluation possible?At this time, in fact, many recovery management actions cannot be determined to be successful or unsuccessful’ (Abbitt & Scott 2001: 1281). Evaluation in nature conservation is feasible and essential to detemine if progress is being made.There are many evaluation techniques available, both ecologic and economic, but a reluctance often to use them.‘Few well-designed empirical analyses assess even the
most common biodiversity conservation measures.’Millennium Ecosystem Assessment, 2005
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Is state of the art essential?If any progress is to be made in stemming the global decline of biodiversity, the field of conservation policy must adopt state-of-the-art program evaluation methods to determine what works and when. Ferraro and Pattanayak, 2006: 482
Ferraro and Pattanayak may aim too high. Feasible low cost techniques may be more readily introduced and used.Cost Effectiveness Analysis and Cost Utility Analysis are two such techniques.
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Cost Utility AnalysisCan we compare what did happen to a species, to what would have happened if there was no species management?Expert assessment requiredQuantify the gain from managementCOPYi = t (Sitw - Sitw/o )
Sitw is species’ i conservation status in year t with management Sitw/o is species i conservation status in year t without management
Measure the cost of managementCalculate amount of conservation gain per $ cost
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Evaluation of single species programmes
Species recovery programme Present Value of Total Expenditure
PV Expenditure per COPY
Brothers Island tuatara Sphenodon guntheri
13 694 40 780
Cook Strait tuatara Sphenodon punctatus
13 694 76 457
Campbell Island teal Anas anas nesietis
39 940 103 178
Short tailed bat Mystacina tuberculata
318 938 184 570
Yellow-eyed penguin Megadyptes anipodes
603 013 305 344
Hector's dolphin Cephalorynchus hectori
773 844 1 048 245
Black stilt Himantopus novaezelandiae
2 441822 1 077 724
Takahe Porphyrio hochstetteri 3 278178 2 327 560
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Project and location Area (ha) PV of costsr = 6%
Annualized cost per ha
COPY produced
PV per COPY
Offshore Islands
Little Barrier Island 2,817 $770 345 $28.52 2.99 $257 640
Tiritiri Matangi 218 $1 547 381 $730.84 0.15 $10 315 873
Maud Island 320 $2 162 521 $695.80 2.39 $904 821
Mean Offshore Island 1118.3 $1 496 749 $485.06 1.84 $3 826 111
Mainland Islands
Rotoiti 825 $1 408 457 $347.18 0.00 undefined
Hurunui 12,000 $863 498 $25.78 1.28 $674 608
River Recovery 11,000 $3 966 070 $45.22 0.45 $8 813 489
Mean Mainland Island 7941.7 $2 079 342 $139.56 0.58 $4 744 048
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Insights from evaluationEvaluation can check whether some projects are much more cost effective than are other projectsAllow us to test assertions such as … “offshore islands have a significant advantage over mainland islands.”Are there economies of scope - do multi species projects achieve more per $ than do single species projects?
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A Conserv-Vision
By 2012 the following are widely adopted:•Conservation programme outcomes and their counterfactuals are projected.•Conservation programmes are costed before decisions are taken.•Quantifiable, time-linked conservation goals are chosen.•Timely monitoring and reporting of conservation programme outcomes and costs.•Evaluation of conservation programmes including comparison to counterfactuals.
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