NEET BIOLOGY

Detailed explanation-1: -Species richness is simply the number of species in a community. Species diversity is more complex, and includes a measure of the number of species in a community, and a measure of the abundance of each species. Species diversity is usually described by an index, such as Shannon’s Index H’.

Detailed explanation-2: -Species Diversity is simply the number and relative abundance of species found in a given biological organisation (population, ecosystem, Earth). Species are the basic units of biological classification and hence, this is the measure most commonly associated with the term ‘biodiversity’.

Detailed explanation-3: -Species abundance is the number of individuals per species, and relative abundance refers to the evenness of distribution of individuals among species in a community. Two communities may be equally rich in species but differ in relative abundance.

Detailed explanation-4: -Abundance is defined as “the measure of the number or frequency of individuals of the same species, ” whereas diversity demonstrates the “number of species present (species richness) and their abundance (species evenness) in an area or in a community” (Booth et al., 2003).

Detailed explanation-5: -Species abundance is the number of individuals per species, and relative abundance refers to the evenness of distribution of individuals among species in a community. Two communities may be equally rich in species but differ in relative abundance.