Diversity and biological balance may influence the functioning and stability of ecological systems. Scientists generally agree that as the number of species in any particular type of ecological system declines, that system can potentially lose its resilience. Biodiversity is of critical importance to the stability of natural ecosystems and their abilities to provide positive benefits such as oxygen production, soil genesis, and water detoxification to plant and animal communities. In a healthy ecosystem, diverse and balanced number of species exists to maintain the balance of an ecosystem. In an ecosystem, all the species depend on each other directly or indirectly. So to make a more efficient, productive and sustainable ecosystem, it is important to maintain high species diversity.