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4.3 Conservation of biodiversity

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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4.3 Conservation of biodiversity

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  1. 4.3 Conservation of biodiversity

  2. Arguments for preserving species • Ethical • Aesthetic • Genetic Resources • Commercial • Life Support/ecosystem supportfunctions

  3. Ethical • Has intrinsic (essential) value • Right to exist • Human have stewardship over the Earth

  4. Aesthetic (Visual) • Recreational • Spiritual • Educational

  5. Genetic Resource • Diversity of gene pool • Ensures future variety of life • Needed for stable ecosystems (disease/natural selection)

  6. Commercial • Food, Medicines, Goods, Resoureces • Medicines ($100 billion/year) • Ecotourism

  7. 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

  8. UNEP • United nations environmental program • Provide leadership and partnerships worldwide

  9. WWF • World Wildlife Fund • Independent conservation organization • Draw attention to major issues and influence policy and decision making • 252 million dollars in 1995

  10. Greenpeace • Independent campaigning organization • Non-violent, creative, confrontation • Draw attention through issues by “bearing witness”

  11. Ecoterrorists • Greatest terrorist threat to our country • Animal Liberation Front (ALF) • Earth Liberation Front (ELF) • Arsons, bombings, vandalism and harassment

  12. Greenpeace protests

  13. 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)

  14. Ecotone (marsh/mangrove) Edge Effect: More Species Can Be found here at the ecotone!

  15. 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?

  16. Wildlife Reserves Design

  17. 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

  18. Species based approach to conservation

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