APES Ch. 11, part 2

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APES Ch. 11, part 2

  1. 1. Sustaining Aquatic Biodiversity Ch. 11, part 2
  2. 2. Wetlands  Very high biodiversity  Very important ecological services:  Natural filters  Trap and clean human and animal waste so water stays clean
  3. 3. Wetlands  Disappearing worldwide  We drain, fill in, and cover these areas for crops, cities, etc.  Vulnerable to global warming rising sea levels drown them
  4. 4. Freshwater ecosystems HIPPCO  Affected by:     Dams Pollution Overfishing Invasives  http://www.kqed. org/quest/television/restoration  Friant Dam in Fresno
  5. 5. How do we protect freshwater ecosystems  Protect the watershed  Watersheds deliver pollutants, nutrients, leaves, feces, etc to rivers
  6. 6.  Laws and Economic Incentives  1968 - National Wild & Scenic Rivers Act  Wild = only accessible by trail  Scenic - pretty, undeveloped  Only 0.2% of all US rivers protected  Only 2% of those protected as free flowing The Tuolumne river
  7. 7. Priorities for sustaining biodiversity and ecosystem services 1. Map all the world’s life so we know what we have To keep every cog and wheel is the first precaution of intelligent tinkering Encyclopedia of Life http://education. eol.org/who/wh at_is_eol Aldo Leopold
  8. 8. Priorities for sustaining biodiversity and ecosystem services 2. Keep/protect all the remaining old growth forests
  9. 9. Priorities for sustaining biodiversity and ecosystem services 3. ID hotspots and areas where ecosystem services are no longer functioning properly The Aral Sea
  10. 10. Priorities for sustaining biodiversity and ecosystem services 4. Protect/restore all rivers and lakes - the most threatened of all ecosystems
  11. 11. Priorities for sustaining biodiversity and ecosystem services 5. Restore damaged ecosystems to give some back to wildlife
  12. 12. Priorities for sustaining biodiversity and ecosystem services 6. Make conservation economically attractive

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