Which of the following statement correctly describe the competitive release?

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Inability of two species to co-exist indefinitely and eventual elimination of the competitively inferior species.

Avoidance of competition between species competing for same resource by figuring a compromise.

Expansion of distribution of a species restricted to a small area due to a competitively superior species being experimentally eliminated.

Evolutionary success in devising a mechanism to counter and neutralize competition.

answer is C.

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Detailed Solution

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. This is competitive release.

Connell’s elegant field experiments showed that on the rocky sea coasts of Scotland, the larger and competitively superior barnacle Balanus dominates the intertidal area, and excludes the smaller barnacle Chathamalus from that zone. In general, herbivores and plants appear to be more adversely affected by competition than carnivores.

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