What is an example of "competitive release"?

What is an example of "competitive release"?
  1. Species expand their range dramatically when a competing species is removed
  2. Competition occurs between unrelated species for the same resource
  3. Interference competition reduces the feeding efficiency of one species
  4. Competitive exclusion occurs only when resources are abundant

Solution

Competitive release is when a species whose distribution is restricted to a small geographical area because of the presence of a competitively superior species, is found to expand its distributional range dramatically when the competing species is experimentally removed.

Asked in: NCERT

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