CHAPTER 13 BIODIVERSITY AND CONSERVATION
EXERCISES
1. Name the three important components of biodiversity.
Ans:
2. How do ecologists estimate the total number of species present in the world?
Ans:
3. Give three hypotheses for explaining why tropics show greatest levels of species richness.
Ans:
4. What is the significance of the slope of regression in a species – area relationship?
Ans:
5. What are the major causes of species losses in a geographical region?
Ans:
6. How is biodiversity important for ecosystem functioning?
Ans:
7. What are sacred groves? What is their role in conservation?
Ans:
8. Among the ecosystem services are control of floods and soil erosion. How is this achieved by the biotic components of the ecosystem?
Ans:
9. The species diversity of plants (22 per cent) is much less than that of animals (72 per cent). What could be the explanations to how animals achieved greater diversification?
Ans:
10. Can you think of a situation where we deliberately want to make a species extinct? How would you justify it?
Ans:
DABP006952
