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5 Cards in this Set
- Front
- Back
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4 major causes of extinction |
Habitat destruction Intro to exotic species or disease Pollution Overharvesting |
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Examples of extinctions |
Passenger pigeon Great Auk Hawaiian birds (60/8) |
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Fragmented habitats |
Do not support diversity like undisturbed habitat Often affects large vertebrates the most |
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Why worry about extinction if it's natural? |
Rate of extinction is estimated to be 10-100 times the background rate |
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What are two main areas of concern? |
Organisms are resources Organisms maintain ecosystem health |
