Ecology And Environment Ques 23

Question: 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

Options:

A) 1 only

B) 2 only

C) 1 and 2

D) None of the Above

Show Answer

Answer:

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.