BIOL211#25 - Chapter 57 Populations are linked by species...

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1 Chapter 57 Species Interactions Populations are linked by species interactions Competition Competition – May be intraspecific (between individuals of the same species), or interspecific (between individuals of different species) Competition – May be exploitation or interference competition Figure 57.2 Competition (-/-) may occur when individuals of different species compete for a limited resource(s) The competitive exclusion principle states that two species competing for the same limiting resource(s) cannot coexist in the same niche However, ecologically similar species can coexist in a community if there are one or more significant differences in their niches
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2 Resource partitioning Figure 57.7 Predation, Herbivory, Parasitism Have a positive effect for one species and a negative effect for the other Classified according to their lethality and duration of interaction Predation, herbivory, and parasitism Figure 57.9 Predation (+/-) is an interaction where one species (predator) kills and eats the other species (prey)
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This note was uploaded on 10/02/2011 for the course BIOL 211 taught by Professor Boury during the Spring '08 term at Iowa State.

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BIOL211#25 - Chapter 57 Populations are linked by species...

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