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CBSE Class 12-science Answered

Why are certain regions on the earth called as hot spot ? Name any 2 hot spot in India.
explain 2 different ways of biodiversity conservation eith example.
Asked by pksunilnair | 12 Dec, 2017, 08:59: PM
answered-by-expert Expert Answer
A biodiversity hotspot is a region of the Earth that is extremely biologically diverse and also under severe threat due to habitat loss, climate change, or extensive species loss. Guarding these regions against further damage is considered environmentally and culturally important, as they host organisms that are not found anywhere else on Earth.
 
The Western Ghats and Eastern Himalayas are hot spots in India.
 
Two different ways of biodiversity conservation are:

In Situ Conservation

  • It is the conservation of biotic resources in their natural habitats through the protection of the total ecosystem. These may be biosphere reserves, national parks, wildlife sanctuaries and sacred grooves and lakes
  • It includes biosphere reserves, national parks, wildlife sanctuaries.

Ex Situ Conservation

  • It is a conservation strategy in which threatened species are reared and preserved outside their natural habitats. These may be homes, botanical gardens and zoological parks.
  • It includes botanical gardens, zoological parks.
Answered by Sivanand Patnaik | 13 Dec, 2017, 09:07: AM
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