En Inde du Nord, les tigres meurent pour de bonnes raisons (combats et autres causes naturelles) et non du fait du braconnage. Leurs populations sont saines et vigoureuses. Hindustan Times, le 30 août. Nihi Sharma. "Five tigers dead in Corbett within eight months, twelve in Uttarakhand."
Qamar Qureshi, tiger expert at Wildlife Institute of India, said natural mortality is a healthy sign which provides space for young and growing tigers. “If tigers are growing, then their deaths will also be reported. What one must ensure that the tigers are not falling prey to poachers. Rest, natural deaths are as intrinsic as in the case of humans,” he told Hindustan Times.
Some of the key forest divisions adjoining Corbett such as Terai East, Terai West, Terai Central, Ramnagar, Haldwani and Lansdowne have a healthy number of tigers. Corbett acts as a source population and the divisions adjoining provide space for the sink population.