Species diversity is defined as the number of different species present in an ecosystem and the relative abundance of each of those species.
Species diversity has two components: Species richness (the number of different species present in an ecosystem) and species homogeneity (the relative abundance of individuals of each of those species).
For example: In a forest, there may be a large number of different species (high species richness), but each species has only a few members (low species homogeneity).
Species richness enables an ecosystem to respond to any disaster.
Example:
In comparison to the Eastern Ghats, the Western Ghats have a greater diversity of amphibian species. This is an example of species diversity.