the science of conservation planning course objective: a free-ranging examination of some key...
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The science of conservation planning
Course objective: a free-ranging examination of some keyscientific principles and research needs pertaining to conservation planning for species, species habitats, and communities.
Course scheduling: We will meet once per week, from 8:30-11:00, in 2620 Ellison Hall. We may occasionally use the Thursday 9:30-10:45 slot for additional discussion. In general, this istime when student discussion leaders can meet with FD to plan readings, discussions, etc.
Course requirements: 1) Critical reading of the materials, 2) active participation in discussion, 3) along with 1-2 of your classmates, responsibility for leading one of the discussions, 4) a12-15 page term paper on the topic of your choice (1 co-author is OK), pending FD’s review and approval.
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Week 2/3 Background and principles
Week 3 will be student led and will cover p. 73-136 of Noss et al.(1997).
Week 4/5 Planning for single species vs. multiple species and communities:
Week 6 Representativeness assessment
Week 7 Developing alternative scenarios of environmental & social change
Week 8 Measures of Success
Week 9 Monitoring and adaptive management
Week 10 Case study
Week 11 Case study or reports
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Conserving biological diversity
• # described species ~1.7 million
• # actual species 30-60 million?
• ~50% of terrestrial species in humid tropics (7% of land surface)
• accelerating rate of extinction
Extinction rate of mammals(broken line) and birds in 50year intervals since 1600 AD
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Human-caused extinctions• habitat loss• introduced species• overharvest• indirect harvest• altered ecosystems• climate change
Modern extinction rates?• Comparable to mass
extinctions• 10-100 spp/hour
Selective extinctions• large• specialized• rare• productive habitats
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Conservation Goals
• Design and protect productive and sustainable land, freshwater and marine ecological systems;
• Conserve genetic and species diversity
• Preserve ecological communities in terms of composition, genetic variation, and dynamics
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Conservation Approaches
• Reserves
• Captive breeding, gardens, germplasm banks
• Sustainable use of productive lands/waters
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Habitat-based conservation
• Habitats vs. ecosystems?
• Actual vs. potential conditions
• Withdrawal vs. active management
• Area, location, replication
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Conversion
Reservation & Restoration
Sustainable Use
100%
100% 100%
50 50
50
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Management of Plant Communities
• Conversion– agriculture 13%
– urban 5%
• Protection
% L1/2 # types < 10% 73
10-20% 46
20-50% 44
>50% 31
total 194
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Size distribution of aggregated Status 1 and Status 2 lands
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Fig 4
1 2 3 4 5 6 7 8
S1
S2
S3
S4
S5
0
5000
10000
15000
20000
25000
30000
35000
40000
45000
50000
Area (km2)
Equiv. Elevation Zone
Soil Class
Western Humid Domain
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Fig 6
1 23
45
67
8
S1
S2
S3
S4
S5
0
10
20
30
40
50
60
70
80
90
100
% Protected
Equiv. Elevation Zone
Soil Class
Western Humid Domain (%C1&C2)
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Species-Based Conservation
• Terrestrial vs. aquatic (marine vs. riverine vs. lacustrine/palustrine)
• Fine-filter vs. coarse filter
• Species designations
• Species conservation ranks
• Information sources
• Ex situ vs. in situ conservation approaches
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Endangered Species Act (1973)
• Designed to save species at risk of extinction and protect habitats upon which those species depend
• amended in 1982 to allow incidental take of listed species provided there were approved Habitat Conservation Plans to minimize and mitigate take
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U.S. Endangered Species Program
• TOTAL U.S. ENDANGERED--934 (356 animals, 578 plants)
• TOTAL U.S. THREATENED--263 (125 animals, 138 plants)
• TOTAL U.S. SPECIES--1,197 (481 animals, 716 plants) ^
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Distribution offederally and statelisted endangeredspecies in CA
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Habitat Conservation Plans
An HCP cannot be approved unless the:• "the taking will be incidental",
• "the applicant will, to the maximum extent practicable, minimize and mitigate the impacts of such takings", and
• "the applicant will ensure that adequate funding of the plan will be provided", and
• "the taking will not appreciably reduce the likelihood of the survival and recovery of the species in the wild", and
• any additional measures required by the Secretary "will be met".
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Habitat Conservation Plans
• ~208 approved HCPs covering 6.5 million acres
• ~250 incidental take permits
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CA NCCP ActFish and Game Code Section 2800-2840
• An NCCP “identifies and provides for the regional or areawide protection and perpetuation of natural wildlife diversity, while allowing compatible and appropriate development and growth.”
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Basic issues
• Habitat-based vs. species-based conservation
• Habitat representation vs. habitat management
• Role of science
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ESA Issues
• Direct vs. indirect taking
• Section 7 consultation process
• Private land incentives and HCPs
• safe harbors
• single-species vs multi-species plans
• listing/recovery/de-listing
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ESA Issues (2)
• Scientific input and review
• Monitoring
• No surprises
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Terminology
• conservation planning• habitat• habitat-based
conservation plan• community • ecosystem• landscape
• population• metapopulation• species• rare species• threatened species• endangered species
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Environmental Planning