The term Biodiversity was named by Walter Rosen, in 1985. Approximately 50 million species of plants, animals & microbes are existing in the world. Among these only 2 million are identified so far. Biodiversity also includes Variability of the genus, Variability of varieties, Variability of species, Variability of populations in different ecosystems, and Variability in the relative abundance of species. Knowledge of biodiversity is essential for the sustainable utilization of resources.

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... al resources provide us: Nourishment, Clothing, House, Fuel, Medicine, and Revenue. Biodiversity plays a critical role in sustaining human populations across the globe. We depend on it for sustained food growth, clean air and water, and for medicine and shelter. It is no surprise then that ecosystem degradation threatens our most basic necessity – a healthy environment to live and thrive in. This is especially true of biodiversity hotspots, which house some of the largest diversity of species in the world and provide important life-support services to the people who live in and around them.