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20.2 VOCAB
20.2 vocab
Question | Answer |
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species richness | the number of different species in an area or community |
species evenness | a meausure of the relative aundance of each 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 thast changes a community by removing or destroying organisms or altering resource availablility |
stability | the tendancy of a community to maintain a relatively constant structure |
ecological sccession | a gradual process of change and replacement in a community. |
primary succession | succession that begins in an area that previously did not support life |
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 community that, after a process of ecological succession, has reached a generally stable state |
secondary succession | the process by which one community replaces another community that has been partially or totally destroyed |