Q. Consider the following statements:

1. The Abingdon tortoise in Galapagos Islands became extinct due to introduction of greater browsing goats.
2. The fitness of one species is significantly lower in the presence of another species in competition.

Which of the above is / are correct?
Answer: Both 1 and 2
Notes: The competition is best defined as a process in which the fitness of one species is significantly lower in the presence of another species. The Abingdon tortoise in Galapagos Islands became extinct within a decade after goats were introduced on the island, apparently due to the greater browsing efficiency of the goats. Another evidence for the occurrence of competition in nature comes from what is called 'competitive release'.

This question is part of UPSC Daily 20 MCQ Series Course on GKToday Android app.