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Chapter 20

Section 2

QuestionAnswer
the number of different species in an area or community species richness
a measure of the relative adundance of each species in an ecological community species evenness
a pattern in which the number of species in an area increases as the area increases species-area effect
in ecology, an event that changes a community by removing or destroying organisms or altering resource availability disturbance
the tendency of a community to maintain a relatively constant structure stability
a gradual process of change and replacement in a community ecological succession
a succession that begins in an area that previously did not support life primary succession
the process by which one community replaces another community that has been partially or totally destroyed secondary succession
a species that colonizes an uninhabited area and that starts an ecological cycle in which many other species become established pioneer species
a community that, after a process of ecological sucession, has reached a generably stable state climax community
Created by: fasolak16
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