Explain Gause's Competitive Exclusion Principle with the help of … - Vidyadip

Question

Explain Gause's Competitive Exclusion Principle with the help of a suitable example.

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Answer

Gause's Competitive Exclusion Principle states that two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior one will be eliminated eventually.
This is true not only when the resources are limiting but also when resources are abundant.
For example, the Abingdon tortoise in Galapagos Islands became extinct within a decade after the goats were introduced into the Island.
It is probably due to the greater browsing efficiency of the goat or the feeding efficiency of one species (tortoise) is reduced by the interfering presence of the other species (goat).

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