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Vocab 20.2
Terms for chapter 20 section 2
| Question | Answer |
|---|---|
| species richness | the number of different species in an area or community |
| species eveness | a measure of the relative adundance of each species species in an ecological community |
| species-area effect | a pattern in which the number of species in an area increases as the area increases |
| disturbance | in ecology, an event that changes a community by removing or destroying organisms or altering resource availability |
| stability | the tendancy of a community to maintain a relativiley constant structure |
| ecological succession | a gradual processes of change and replacement in a community |
| primary succession | succession that begins in an area that previosly did not support life |
| secondary succession | the process by which one community replaces another community that has been partially or totally destroyed |
| pioneer species | a species that colonizes an unhabited area and taht starts an ecological cycle in which many other species become estabolished |
| climax community | a community that, after a process of ecological succession, has reached a generally stable state |
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SheaM16
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