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