Q.
Which one of the following is not observed in biodiversity hotspots ?
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AIPMTAIPMT 2008Biodiversity and Conservation
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Solution:
Hot spots are areas with high density of biodiversity or megadiversity which are also the most threatened ones. Ecologically hot spots are determined by four factors - number ofspecies/species diversity, degree of endemism, degree of threat to habitat due to its degradation and fragmentation, and degree ofexploitation. India has three hot spots : Indo-Burma, Himalayas and Western Ghats - Sri Lanka. India is even otherwise a country of megadiversity with 2.4% of land area and having 8.1% of global diversity. Major centres of biodiversity are Agasthyamalai hills. Silent valley and Amambalam reserve. There is high degree of endemism as well as richness of species of flowering plants, amphibians, reptiles, some mammals and butterflies.