Zoology - Organisms and Populations Question with Solution | TestHub

'Gause's Competitive Exclusion Principle'

If the resources are limited, two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior species have to be eliminated.

Example : Within a decade after introduction of goats in Galapagos Islands, Abingdon tortoise became extinct due to the greater browsing efficiency of the goats.