Ecology Lecture 5
- Created by: emmawilliams
- Created on: 28-03-17 18:09
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Competition.
Interspecific: Different species
Intraspecific: Same species
Resource competition: for the same limiting resource e.g. nest site.
Interference competition: direct competition e.g. by fighting.
Niche theory
Competititive exclusion principle (Gause’s Principle)
Competitive exclusion principle: If two competing species coexist in a stable environment then they must have different realized niches (‘niche differentiation’)
Character displacement
‘A measureable physical difference between two species which has arisen by natural selection as a result of the selection pressures on…
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