Lecture 35

Question 1

Species at risk for extinction because of global warming

Answer 1

• cold loving species with range restrictions
• coral reef species, temperature or acid sensitive ones
• species that cannot quickly adjust their habitat range

Question 2

Value of Biodiversity

Answer 2

1. Sources for agriculture & medicine
2. Commercial Value
3. Recreational value
4. Self preservation & ecosystem services
5. intrinsic value

Question 3

Commercial Value

Answer 3

• ecotourism and money spent in natural areas

- natural resource harvesting

Question 4

Recreational Value

Answer 4

• camping
• fishing
• hunting
• nature programs
• scientific studies

Question 5

Self Preservation and ecosystem services

Answer 5

• air and water purification
• detoxification of wastes
• pollination of food crops
• protection against harmful UV

Question 6

Intrinsic Value

Answer 6

• value for own sake

- moral or basic right to exist

Question 7

Human Induced Extinction Causes

Answer 7

1. Overexploitation
2. Introduction of Exotic Species
3. Loss of mutualists
4. Global Warming and Climate change
5. Habitat destruction and alteration