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Unformatted text preview: o Two species cannot coexist permanently in community if niches are identical but ecologically similar species can coexist if there are differences in their niches • Resource partitioning : Differentiation of niches that enables similar species to coexist in a community o As a result of competition, a species’ fundamental niche , which is the niche potentially occupied by that species, is often different from its realized niche , the portion of its fundamental niche that it actually occupies in a particular environment • Character displacement : The tendency for characteristics to diverge in more in sympatric populations of two species than in allopatric populations of the same two species o Allopatric – geographically separate Sympatric – geographically overlapping • Predation : + / – interaction between species in which one species, the predator, kills and eats the other, the prey...
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This note was uploaded on 01/22/2012 for the course BIOL 1030 taught by Professor Jones during the Spring '10 term at Alabama.
- Spring '10