Genetic diversity refers to the variety of genetic information contained in all of the individual plants, animals and microorganisms.
Genetic diversity occurs within and between populations of species as well as between species.
Species diversity refers to the variety of living species. Ecosystem diversity relates to the variety of habitats, biotic communities, and ecological processes, as well as the tremendous diversity present within ecosystems in terms of habitat differences and the variety of ecological processes. The sheer diversity of life is of inestimable value. It provides a foundation for the continued existence of a healthy planet and our own well-being. Many biologists now believe that ecosystems rich in diversity gain greater resilience and are therefore able to recover more readily from stresses such as drought or human induced habitat degradation.