Biodiversity includes a great variation within and between species of the living organisms. All living species associates and forming the complex system and is an important tool of the biodiversity. As the species is the group of individuals with capability of reproducing the same species in the next generation. In general term the biodiversity or biological diversity IA variation of species of all type of natural habitats with presence of certain species. Diversity in ecosystem includes species diversity, habitat diversity and ecosystem diversity. Interactive relationship between environment and biota creates complex system in nature. Climatic changes, pollution level, vegetation structure and composition etc. are key factors participating in structure and function of such system. Adaptability of the certain species is a remarkable characters important quality of the species which support them to live in specific climatic condition and also playing role in survival of the species. Species variation is determined by the effect of gene activity and regulated by the presence of environmental facilities available for the species, group of the same species or by the association of individual species forming a population structure. Its occurrence, Density and dispersal are variable components.