Hello,

Biodiversity is generally explored at three levels - genetic diversity, species diversity and ecosystem diversity.

biodiversity includes all organisms, species, and populations; thegenetic variation among these; and all theircomplex assemblages of communities and ecosystems.

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Thank you.

Hi,

There are three levels of biodiversity, viz. species diversity, genetic diversity and ecosystem diversity :-

(1) Species Diversity :

The total number of species of plants and animals in a given region is called species diversity of that region. Species diversity is considered as the most common meaning of biodiversity. This is taken as a unit of measurement for balance of any ecosystem. Population of microorganisms is impossible to count because they can be in millions or even billions in numbers. Only 10 gm of soil may contain a billion bacteria and more than 50,000 fungi. Hence, number of microorganisms is not counted while defining the biodiversity at a place.

(2) Genetic Diversity :

The variation among members of a single species because of genes is called genetic diversity. This type of diversity is seen in different population groups of a species or even among different members of a population. For example, different varieties of rice show genetic diversity. Similarly, differences in height, skin colour, facial features, hair colour, etc. among human beings show genetic diversity. A higher level of genetic diversity among members of a species ensures that the species is at lower risk of becoming extinct; because genetic diversity increases the ability to adapt to the environment. Genetic diversity is responsible for giving birth to a new variety of a species.

(3) Ecosystem Diversity :

The system of interaction among different creatures and between living beings and abiotic components in a region is called ecosystem. There are many types of ecosystem on earth, e.g. grasslands, mountains, desert, marshes, ocean, river valley, tropical forest, etc. Each ecosystem has its unique geographical and environmental features. Such features are responsible for diversity among creatures in a particular region. This type of diversity is called ecosystem diversity. In other words, the differences in geographical and environmental conditions in different ecosystems is are called ecosystem diversity.

Hope this helps.