Summary:
This means that any development passing through corridors has to be green and no development should be permitted within the core areas of tiger reserves.” Only nine tiger reserves meet this criteria in India, and even fewer outside the country. Our research has shown that a minimum of 20 breeding units are required for long-term persistence of tiger populations. Only those reserves which had at least 20 breeding units, with a tiger and tigress comprising a unit, qualified. There are tigers in several reserves but their fate is questionable..