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With reference to biodiversity, which of the following statements is/are correct? 1) Species richness and high degree of endemism are important criteria for identifying biodiversity hot spots. 2) Species diversity is highest in the tropic and decreases down the poles. 3) Biodiversity conservation may be in-situ as well as ex-situ. Select the correct answer using the code given below:

With reference to biodiversity, which of the following statements is/are correct? 1) Species richness and high degree of endemism are important criteria for identifying biodiversity hot spots. 2) Species diversity is highest in the tropic and decreases down the poles. 3) Biodiversity conservation may be in-situ as well as ex-situ. Select the correct answer using the code given below: Correct Answer 1, 2 and 3

The correct answer is option 3, i.e 1, 2 and 3.

Biodiversity hot spots

  • Biodiversity is the variety of plant and animal life in the world or in a particular habitat.
  • Biodiversity is measured by two major components i.e. species richness and species endemism. Hence statement 1 is correct.
  •  The region must fulfill the following two criteria to qualify as a hotspot:
  1. The region should have at least 1500 species of vascular plants i.e., it should have a high degree of endemism.
  2. It should contain 70% of its original habitat.
  • Species diversity decreases as we move away from the equator towards the poles. Hence statement 2 is correct.
  • Biodiversity conservation may be in-situ (conservation within the natural habitat) as well as ex-situ (conservation outside the natural habitat). Hence statement 3 is correct.​

Related Questions

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