Referral to the biodiversity of life on earth at all levels of organisation
Genetic Diversity
Refers to the variety of genes within a population of a single species
Ecosystem diversity
The variety of habitats, natural communities and ecological processes in the biosphere
Species diversity
The variety of different species in a particular area or on Earth as a whole
Species richness
The number of different species in a given area of location
Species abundance
The number of individuals per species or population
Relative abundance
Refers to the proportion or percentage of individuals of a particular species (population) in a given area relative to the total number of individuals of all species in that area.