Mt. St. Helens
May 18, 1980
How does an ecosystem rebound from
catastrophe?

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
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.
Wildfire Research:
http://video.nationalgeographic.com/video/player/
environment/environment-natural-disasters/landslides-
and-more/wildfire-research.html
Ecosystem Degradation
Why Care about Water?
http://video.nationalgeographic.com/video/player/
environment/habitats-environment/freshwater/env-
freshwater-whycare.html
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Rosia Montana, Romania




                                          Open pit mine
                gold production - 2006
Gold 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/
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Ecosystem Degradation
Ecosystem Degradation
NOVA, Preserving Life on Earth, E. O. Wilson, Loss of Biodiversity:
http://www.pbs.org/wgbh/nova/eowilson/program.html
Ecosystem Degradation
Ecosystem Desertification – land degradation in arid, semi-arid, and dry subhumid
regions resulting from human impact (destruction of deserts, savannas, grasslands,
shrublands, woodlands).
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Ecosystem Degradation
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Burning Season and the Carbon Market:
http://video.pbs.org/video/1157019251/
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Lecture 8 ecosystem development
Lecture 8 ecosystem development
Lecture 8 ecosystem development
Lecture 8 ecosystem development
Lecture 8 ecosystem development
Lecture 8 ecosystem development
Lecture 8 ecosystem development

Lecture 8 ecosystem development