BIOL 2060 Study Guide - Midterm Guide: Intraspecific Competition, Interspecific Competition, Milkshake

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Intraspecific competition: members of a species use the same limited recourses, negatively influencing each others population growth rates and population sizes. Interspecific competition: two different species use the same limited resource, negatively influencing each others population growth rates and population sizes. Competition by interference: directly conflicting with each other over a resource, male deer fighting over a mate for example, milk shake analogy: pinching the other person"s straw. See formulas to understand how to determine how we can modify the logistics growth model to describe the effects of interspecific competition and intraspecific competition on population growth. If a=1 then the strength of interspecific and intraspecific are equal. There could be cases where species 2 is not very good competitor. Therefor adding one more will not have as large as an effect. But there are some competitors where adding one more will have a larger impact on species. What value of a would you want in order to have coexistence while.