His ideas shaped national policy as well. When India began framing its response to the Convention on Biological Diversity, Gadgil played an important intellectual role. The Biological Diversity Act, which came into force in the early 2000s, reflected many of his beliefs. It recognised biodiversity as a national asset while also affirming the rights of local communities over biological resources and associated knowledge. Aspects of access/benefit sharing, local community biodiversity registries and decentralised biodiversity management throughout the countryside confirmed Dr Gadgil's assertion that biodiversity conservation should be democratic and based on local stewardship. Dr Gadgil has argued for many years that wildlife conservation efforts should not only concentrate on "flagship" species such as tigers and elephants. Emphasis should also be placed on the many different types of creatures that are less commonly known, including insects, amphibians, freshwater fish and plants used for medicinal purposes; all of these types of life are critical to supporting ecosystem health and are often overlooked as critical components of biodiversity. In his research and work on the Western Ghats Biosphere Reserve, he found that this region has an enormous amount of species that only occur in this area of the world (the majority of amphibians and plants) that are found nowhere else, and that many of them are on a path to extinction before they can even be described in a scientific manner as a result of pressures such as mining, dam construction, road building and urban sprawl.