Discussion
Which of the following criteria are used to define biodiversity hotspots ?
A. Species diversity
B. Vegetation density
C. Endemism
D. Ethno-botanical importance
E. Threat perception
F. Adaptation of the species to local climate
Choose the correct answer from the options given below :
Answer: C
The criteria are A, C and E, so the answer is A, C and E.
Biodiversity hotspots, a concept introduced by Norman Myers and applied by Conservation International, are regions that combine very high species diversity with a high level of endemism, at least 1,500 endemic vascular plant species, and serious threat, having lost at least 70% of their original habitat.
Vegetation density, ethno-botanical importance and species' adaptation to local climate are not hotspot criteria. India's hotspots are the Western Ghats and Sri Lanka, the Himalaya, Indo-Burma and Sundaland, which includes the Nicobar Islands.
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