4 3 conservation of biodiversity
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4.3 Conservation of biodiversity

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4.3 Conservation of biodiversity. Arguments for preserving species. Ethical Aesthetic Genetic Resources Commercial Life Support/ecosystem support functions. Ethical. Has intrinsic (essential) value Right to exist Human have stewardship over the Earth. Aesthetic (Visual) . Recreational

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arguments for preserving species
Arguments for preserving species
  • Ethical
  • Aesthetic
  • Genetic Resources
  • Commercial
  • Life Support/ecosystem supportfunctions
ethical
Ethical
  • Has intrinsic (essential) value
  • Right to exist
  • Human have stewardship over the Earth
aesthetic visual
Aesthetic (Visual)
  • Recreational
  • Spiritual
  • Educational
genetic resource
Genetic Resource
  • Diversity of gene pool
  • Ensures future variety of life
  • Needed for stable ecosystems (disease/natural selection)
commercial
Commercial
  • Food, Medicines, Goods, Resoureces
  • Medicines ($100 billion/year)
  • Ecotourism
life support
Life Support
  • Flow of material, energy in the biosphere
    • Photosynthesis
    • Pollination
    • Soil formation and

maintenance

    • Nutrient cycling
    • Moderation of weather

extremes

    • Purification of air and

water

slide8
UNEP
  • United nations environmental program
  • Provide leadership and partnerships worldwide
slide9
WWF
  • World Wildlife Fund
  • Independent conservation organization
  • Draw attention to major issues and influence policy and decision making
  • 252 million dollars in 1995
greenpeace
Greenpeace
  • Independent campaigning organization
  • Non-violent, creative, confrontation
  • Draw attention through issues by “bearing witness”
ecoterrorists
Ecoterrorists
  • Greatest terrorist threat

to our country

  • Animal Liberation Front

(ALF)

  • Earth Liberation Front

(ELF)

  • Arsons, bombings,

vandalism and

harassment

key terms
Key Terms
  • Corridors- Strips of land that link reserves together
  • Ecotone- where two habitats meet near a boundary
  • Edge effect- occurs at ecotones because more species are present from the two habitats (increased resources)
ecotone marsh mangrove
Ecotone (marsh/mangrove)

Edge Effect: More Species Can Be found here at the ecotone!

criteria used to design protected areas
Criteria used to Design protected areas
  • Size:
    • How large should area be?
    • One large or many small areas?
    • How many individuals must be protected?
    • Reduce Edge Effect
  • Shape: What is the best shape?
  • Proximity: How close together?
  • Corridors: ReservesJoined or separated?
cites
CITES
  • Conservation of International trade in endangered species (CITES)
  • Reduced trade in endangered species
    • Appendix I: cannot be traded threatened with extinction
    • Appendix II: can be traded but with strict regulation
    • Appendix III: Included at request of country to help regulate illegal exploitation
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