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UPSC Ecology And Environment Ecology and Environment Question Bank Ecology And Environment

  • question_answer
    With reference to ecosystem stability, consider the following statements
    1. A diverse and complex ecosystem is more stable.
    2. Ecosystem stability increases with decrease in number of links in food web.
    Which of the statements given above is/are correct

    A) 1 only              

    B) 2 only

    C) 1 and 2            

    D) None of the Above

    Correct Answer: A

    Solution :

    Diversity increases the resilience of the system to outside invasions of exotic organisms. So statement 1 is correct. A large number of interacting feeding links provide alternative channels for energy flow and this generates a wide variety of adjustments of population to environment changes and stresses within the ecosystem. Therefore, ecosystem stability increases with increase in number of links in food web.


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