Ch. 12

14 flashcardsby Will
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1
Characteristics of Extinction-Prone Species
2
Why Should We Preserve Wild Species?
3
Basic and Secondary Causes of Depletion and Extinction
Basic:
- population growth
- risimg resource use
- no environmental accounting
- poverty
4
Causes of Depletion of Wild Species
should memorize
5
Causes of Depletion of Wild Species: Direct Causes
6
What is the greatest single threat to species survival?
Habitat loss and degredation
7
Habitat Loss and Degradation: why is it bad? what are some examples?
8
Threats from Non-Native Species: why/how do non-native species arrive? why are they an issue?
9
How Can We Reduce Threats from Non-
Native Species?
10
What are other extinction threats? Besides non-native species and habitiat degredation
11
COSEWIC Risk Categories: what are they and what are the catagories?
12
Protecting Wild Species: The Sanctuary Approach - what are the methods and challenges?
13
pros and cons of zoos/aquariums
14
What is background extinction? What is mass extinction?
Background extinction is the normal amount of species going extinct without human factors.
Mass extinction is a widespread, rapid decrease in biodiversity (many species going extinct)
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