chapter 20: community ecology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| climax community | a community that after a process of ecological seccession has reached a generally stable state
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| commensalism | a relationship between two organisms in which one organism benefits and the other one is unaffected
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| disturbance | in ecology an event that changes a community be removing or destroying organisms or altering resource availability
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| ecological succession | a gradual process of change and replacement in a community
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| interspecific competition | a relationship between two species in which both species compete for limited resources such that both species are negatively affected by the relationship
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| mutualism | a relationship between two species in which both species benefit
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| predation | a relationship between two species in which one species the predator feeds on the other species the prey
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| parasitism | a relationship between two species in which on species the parasite benefits from the other species the host which is harmed
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| primary succession | succession that begins in an area that previously did not support life
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| pioneer species | a species that colonizes an inhabited area that starts an ecological cycle in which many other species become established
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| symbiosis | a relationship in which two different organisms live in close association with each other
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| species richness | the number of different species in an area or community
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| species evenness | an measure of the relative abundance of 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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| stability | the tendency of a community to maintain a relatively constant structure
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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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