In National Parks, Genetic diversity is maintained by -

Genetic diversity in National Parks is maintained through in-situ conservation. In-situ conservation, which means "on-site" conservation, involves the protection of plants and animals within their natural habitats. This method allows species to continue their evolutionary process in the environment where they occur naturally.

• In-situ conservation: Examples include National Parks, Wildlife Sanctuaries, Biosphere Reserves, and Sacred Groves. These areas protect the entire ecosystem and its genetic diversity.
• Ex-situ conservation: Refers to "off-site" conservation where species are protected outside their natural habitats, such as in botanical gardens, zoos, seed banks, and gene banks.
• Gene pool: This is the sum of all the genetic information in a particular population, but it is not the method of maintenance itself.

Therefore, because National Parks protect species in their original environment, they are a fundamental tool for in-situ conservation.