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Biology Ch 20.2
Ch.20 vocab
| Term | Definition |
|---|---|
| species richness | the number of different species in an area or community |
| species evenness | the relative abundance of each species |
| species-area effect | a pattern in which the number of species in an area increases as the area increases |
| disturbance | are events that change communities, remove or destroy organisms from communities, or alter resource availability |
| stability | is the tendency of a community to maintain relatively constant conditions |
| ecological succession | a gradual process of change and replacement in a community |
| primary succession | succession that begins in an area that previously 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 uninhabited area and that starts an ecological cycle in which many other species become established |
| climax community | a final, stable community in equilibrium with the environment |
Created by:
SchmidtE20
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