There are several published experiments in. which biodiversity has been manipulated in experimentally-assembled communities. In most cases increasing biodiversity increases ecosystem stability and productivity. But, while communities can be more or less stable, some rate of change is normal and I think that most ecologists would say that there is no such thing as "ecological balance."

Dr Michael c. Singer thank you for your contribution to the discussion

Biodiversity in ecosystems, species, and individuals leads to greater stability. As species with high genetic diversity and many populations that are adapted to a wide variety of conditions are more likely to be able to weather disturbances, disease, and climate change. Biodiversity increases ecosystem stability. That is, an ecosystem with high biodiversity is more likely to be stable than an ecosystem with low biodiversity. Ecosystem stability is an ecosystem's ability to recover from a disaster. Having a number of different organisms increases the stability of an ecosystem, because a change in the population of one organism will have less effect on the population of an organism that depends on it. Disturbance frequency and intensity and species diversity interactions and life history strategies. Ecosystems with higher biodiversity have fewer species that depend on just one other for food, shelter and maintaining their environment. With the example above, puffins could also eat molluscs and worms. Ecosystems with higher biodiversity are more stable as they can easily adjust to changes. Flora and fauna are very important for human existence. The flora liberates oxygen that is consumed by the fauna for respiratory activities. Fauna, in turn, liberates carbon dioxide consumed by the flora for photosynthesis. Flora and fauna hugely benefit mankind through its medicinal and food offerings. India is a mega diverse country with only 2.4% of the world's land area, accounts for 7-8% of all recorded species, including species of plants and species of animals. There are about 45,000 species of plants, which is about 7% of world's total. Flora and fauna are crucial for human existence. The flora liberates oxygen that is consumed by the fauna for respiratory activities. In turn, Fauna releases carbon dioxide the flora consumes for photosynthesis. Conservation of biological diversity leads to conservation of essential ecological diversity to preserve the continuity of food chains. The genetic diversity of plants and animals is preserved. It ensures the sustainable utilization of life support systems on earth.