Lecture 8 ecosystem development

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Lecture 8 ecosystem development

  1. 1. Mt. St. HelensMay 18, 1980How does an ecosystem rebound fromcatastrophe?Rebirth of a Blast Zone:http://ngm.nationalgeographic.com/2010/05/mount-st-helens/blast-zone-animation PBS, NOVA (May 3, 2010) http://video.pbs.org/video/1456691252
  2. 2. Dynamic Equilibrium of an Ecosystem: The property of continual adjustment to change, maintaining an overall balance. Ecosystems respond to changing conditions in a way to preserve an overall pattern of plant, animal, and microbial life.
  3. 3. Wildfire Research:http://video.nationalgeographic.com/video/player/environment/environment-natural-disasters/landslides-and-more/wildfire-research.html
  4. 4. Ecosystem Degradation
  5. 5. Why Care about Water?http://video.nationalgeographic.com/video/player/environment/habitats-environment/freshwater/env-freshwater-whycare.html
  6. 6. ••
  7. 7. ••
  8. 8. Rosia Montana, Romania Open pit mine gold production - 2006Gold is >$1,000 / ounce Gold Mining in Europe (Video Segment 2 & 4) http://www.pbs.org/wnet/wideangle/lessons/ gold-futures/video-segment-2/4691/
  9. 9. •••
  10. 10. •••
  11. 11. Ecosystem Degradation
  12. 12. Ecosystem Degradation
  13. 13. NOVA, Preserving Life on Earth, E. O. Wilson, Loss of Biodiversity:http://www.pbs.org/wgbh/nova/eowilson/program.html
  14. 14. Ecosystem Degradation
  15. 15. Ecosystem Desertification – land degradation in arid, semi-arid, and dry subhumidregions resulting from human impact (destruction of deserts, savannas, grasslands,shrublands, woodlands).
  16. 16. ••• • •
  17. 17. •••
  18. 18. Ecosystem Degradation
  19. 19. ••••
  20. 20. Burning Season and the Carbon Market:http://video.pbs.org/video/1157019251/
  21. 21. ••

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