BIOL 201 Study Guide - Final Guide: Reproductive Isolation, Polyploid, Gene Flow
4 Mar 2018
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Document Summary
Biological community: different populations that live together in one place and interact with one another. Habitat: the place in which an organism lives. Niche: the role that an organism has within the community. Fundamental niche : the niche a species is theoretically capable of using. Realized niche: a niche that a species is able to occupy in the presence of competitors. Competitive exclusion principle: if two species are competing for a resource, the species that uses the resource most efficiently will eliminate the other. No two species with the same niche can co- exist. Resource partitioning concept: where each species uses a portion of all the resources available. Interspecific competition: two species attempt to use the same resource and there is not enough of the resource to satisfy both. Intraspecific competition: two organisms within the same species compete for resources.
