GGH1503 SUMMARY NOTES CHAPTER 10

Sustaining Terrestrial Biodiversity:
The Ecosystem Approach

Chapter 10

,Core Case Study: Reintroducing
Gray Wolves to Yellowstone

 Around 1800

 1850–1900: decline due to human activity

 U.S. Endangered Species Act: 1973

 1995–1996: relocation of gray wolves to
Yellowstone Park

 2008: Gray wolf no longer protected

,10-1 What Are the Major Threats
to Forest Ecosystems? (1)
 Concept 10-1A Forest ecosystems provide
ecological services far greater in value than the
value of raw materials obtained from forests.

 Concept 10-1B Unsustainable cutting and
burning of forests, along with diseases and
insects, are the chief threats to forest
ecosystems.

, 10-1 What Are the Major Threats
to Forest Ecosystems? (2)

 Concept 10-1C Tropical deforestation is a
potentially catastrophic problem because of the
vital ecological services at risk, the high rate of
tropical deforestation, and its growing
contribution to global warming.