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Chapter 20.2

Chapter 20.2 vocab

TermDefinition
species richness the number of species in the community
species evenness the relative abundance of each species
species-area effect the relationship that larger areas usually contain more species than smaller areas do
disturbance events that change communities, remove or destroy organisms from communities, or alter resource availability
stability the tendency of a community to maintain relatively constant conditions
ecological succession the gradual, sequential regrowth 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 a final. stable community in equilibrium with the environment
Created by: CoffeyM20