W09_L19_competitionII

Competition cause the evolution of resource

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Unformatted text preview: ith high niche overlap and assume resource use is genetically controlled Nice idea, but does that really work? prey size Individuals of both species that eat prey more like their competitors will have reduced fitness relative to those that eat more different prey because they experience strong interspecific competition Individuals of both species that eat more different prey will have greater fitness relative to those that similar prey because they experience weak interspecific competition Because individuals that eat more differently left more offspring than those that eat more similarly, the mean phenotype has shifted to a lower and higher prey size in the next generation prey size Performance 4 Nice idea, but does that really work? Character displacement is the process of evolution toward niche divergence as a result of interspecific competition. Compare populations living in the same location as another species (sympatry) vs. those living in an...
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This note was uploaded on 10/08/2009 for the course BIS 2 taught by Professor Schwartzandkeen during the Spring '09 term at UC Davis.

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