There are two strategies for nature preservation: I. In-situ preservation II. Ex-situ preservation
In-situ and Ex-situ are Latin phrases that mean ‘on site’ and ‘of site’ respectively. While In-situ means preservation of species in its natural habitat, the latter refers to preservation of species outside its natural habitat.
* METHODS OF IN-SITU CONSERVATION
Protected areas are often set up for this. These protected areas are often classified into a core zone and a buffer zone. In the core zone no entry is permitted. In the buffer zone limited entry ( for example for tourism) is permitted after obtaining permission from an appropriate authority. There are usually three types of protected areas : 1. National parks and sanctuaries-
These are meant for the protection of flora and fauna. In a sanctuary some restricted private ownership is allowed but in a national park no such ownership is allowed. National parks are protected areas in which there is a core and buffer zone. In a core zone no human activities are allowed but in the buffer zone some activities like tourism and scientific studies are allowed. Such activities are allowed only with the permission of the government. In a sanctuary there may or may not be a core zone. If these exist then the same rules of the national park apply. Unlike national parks, in a sanctuary some amount of private ownership is allowed. This means that a few people can