EVERYDAY SCIENCE

Detailed explanation-1: -The simplest measure of diversity, the number of species in a given area, is called within-area diversity or, technically, alpha diversity.

Detailed explanation-2: -Species richness is the simplest measure of species diversity and is either a count of the number of, or the list of, species inhabiting a given area or habitat. Measures of species diversity are formed from species richness by further classifying the species by attributes, such as abundance, size, or ecological role.

Detailed explanation-3: -Three metrics of species diversity – species richness, the Shannon index and the Simpson index – are still widely used in ecology, despite decades of valid critiques leveled against them.

Detailed explanation-4: -Species diversity is the measure of biological diversity observed in a particular ecological community indicating a number of species or species richness in an ecological community.

Detailed explanation-5: -There are a number of ways that we measure it, with counting species the most common approach.