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12 Biology Biodiversity and Conservation - Set No : 9 Question No :4

Question No : 4
               Given below are pie diagram  and  related to the percentage of various categories of threatened species of angiosperms, amphibians reptiles, birds and mammals respectivelyCritically study and identify the following regions     

                a)                    b)               

                c)                    d)               

Answer No : 4
     (b)The 2000 Red List contains assessments of more than 18,000 species, 11,000 of which are threatenedThe Red List also provides information to international agreements such as the convention on Biological diversity and the convention on International Trade in Endangered Species of Wild Fauna and FloraAccording to the Red List, in India44 plant species – critically endangered113 plant species – endangered87 plant species – vulnerable18 animal species – critically endangered54 animal species – endangered143 animal species – vulnerableAccording to Red List10% mammals, 9%, 15% reptiles, 16% amphibians and 16% angiosperms are facing very high list of extinction in the wild and can become extinct any moment in the immediate future.The percentage number of endangered species in the list of threatened species is 19% mammals, 17% birds, 21% reptiles, 22% amphibians and 19% angiosperms.Percentage of depleted (vulnerable) species out of the total threatened species is 34% mammals, 36% birds, 43% reptiles, 48% amphibians and 51% angiosperms.The given data shows the maximum percentage of endangered species belongs to the group of angiosperms     

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