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Community ecology homework 7 shortest answer if possible

Environmental Science
Tutor: None Selected Time limit: 0 Hours

5.      I measure the use of nuts, trees and nesting materials by two species of squirrel and find some strong overlaps in the uses of nesting materials in particular.  Is it safe to conclude that these two species are competitors?  Why or why not?

 

Apr 14th, 2015

yes. Competition is only one of many interacting biotic and abiotic factors that affect community structure. Moreover, competition is not always a straightforward, direct, interaction. Interspecific competition may occur when individuals of two separate species share a limiting resource in the same area. If the resource cannot support both populations, then lowered fecundity, growth, or survival may result in at least one species. Interspecific competition has the potential to alter populations, communities and the evolution of interacting species. On an individual organism level, competition can occur as interference or exploitative competition.

Direct competition has been observed between individuals, populations and species, but there is little evidence that competition has been the driving force in the evolution of large groups. For example, between amphibians, reptiles and mammals


Apr 22nd, 2015

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