BIOL 180 Chapter 52.1: Competition Pages 1094-1097
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BIOL 180 Full Course Notes
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Intraspecific competition (within species)=competition that occurs within members of the same species: for space, sunlight, food, and other resources intensifies as populations density increases, as a result, it is a major cause of density-dependent growth. Interspecific (between species) competition = individuals from different species use the same limiting resources: direct, e. g. lion fighting off hyenas to control access to zebra b) carcass. Indirect e. g. finch consumes all available seed on bush, leaving no seeds for species visiting bush later. Using the niche concept to analyze interspecific competition: niche =range of resources that the species is able to use or range of conditions it. Interspecific competition occurs when niches of two species overlap. If individuals are extremely successful at competing for a particular resource, then they are probably not as successful at enduring drought conditions, warding off disease, or preventing predation.
