the more diveres=
the more stable
biodiversity
variation of life forms present in a particular environment
community
interactions between populations of two or more different species occupying the same geographical area in a particular time
species richness
total number of species occurring within the community
relative abundance
proportion of a given species within a community
species evenness
% of abundance is occupied by one specific species
species diversity
takes into account both species richness and relative abundance
pi
proportion of total individuals in the community represent by species i