international union for conservation of nature prepare the red list that contains – pages for endangered species
Answers
Answer:
The IUCN Red List of Threatened Species™ is the world's most comprehensive inventory of the global conservation status of plant and animal species. It uses a set of criteria to evaluate the extinction risk of thousands of species and subspecies.
Answer:
(i) Normal species : species whose population levels are considered to be normal for their survival, such as cattle, sal, pine.
(ii) Endangered species : are those which are on the verge of extinction.
For examples- Indian rhino.
(iii) Vulnerable species : are those whose population has declined to levels from where it is likely to move into the endangered category in the near future if the negative factors continue to operate.
Examples-Asiatic elephant, Gangetic dolphin.
(iv) Rare species : are those with small population which move into the endangered or vulnerable species if the negative factors continue to operate.
Examples-Himalayan brown bear, wild Asiatic buffalo.
(v) Endemic species : are those species which are found in some particular areas which are usually isolated by natural or geographical barriers.
Examples-Nicobar pigeon, Andaman wild pig.
(vi) Extinct species : are those which are not found to exist in a country, continent or the earth.
Examples-Asiatic Cheetah, pink headed duck.
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