Sponsor Area

Biodiversity And Conservation

Question
CBSEENBI12002113

Write the difference between genetic biodiversity and species biodiversity that exists at all the levels of biological organisation.

Solution
Genetic diversity Specific diversity
Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species. It is the ratio of one species population over the total number of organisms across all species in the
given biome. ‘Zero’ would be infinite diversity, and ‘one’ represents only one species present.
A single species might show high diversity at the genetic level (E.g. Man: Chinese, Indian American, African etc.) India has more than 50,000 genetically different strains of rice and 1,000 varieties of mango. Species diversity is a measure of the diversity within an ecological community that incorporates both species richness (the number of species in a community) and the evenness of species.
Genetic diversity allows species to adapt to changing environments. This diversity aims to ensure
that some species survive drastic changes and thus carry on desirable genes.
For example, the Western Ghats have a greater amphibian species diversity than the Eastern Ghats. There are more than 2,00,000 species in India of which several are confined to India (endemic).