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20.2

QuestionAnswer
species richness the number of species in a community
species evenness the relative abundance of each species
species-area effect the relationship that larger areas contain more species than smaller areas do
disturbance events that change communities, remove or destroy organisms from communities, or alter resource availability
stability the tendancy of a community to maintain relatively constant conditions
ecological succession the gradual, sequential growth of a community of species in an area
primary succession the development of a community in an area that has not supported life previously
secondary succession the sequential replacement of species that follows disruption of an existing community
pioneer species the species of organisms that predominate early in succession
climax community the traditional description of succession is that the community proceeds through a predictable series of stages until it reaches a stable end point
Created by: gbadger24
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