The Kaziranga Tiger reserve along with other protected areas surrounding has a tiger population of 125 in the region.
It is connected to the southern parts of the North East landscape via Karbi Anglong Hills for which it acts as a major source but has lost its connectivity to Pakke in the north due to intensive agriculture on the northern banks of Brahmaputra river.
Kaziranga is contiguous with Orang National Park and connected through island systems of the Brahmaputra. Nameri too is connected through riverine corridors which is an important connectivity maintaining gene flow between the plains and the hill populations of tigers in Arunachal Pradesh, according to the report.
These connectivities between the various national parks and wildlife sanctuaries form the crucial element for targeting conservation efforts.
Manas Tiger Reserve was camera trapped and tiger density was estimated to be 1.8 tiger per 100 square kilometre but the region has higher potential and with control of poaching of prey, tiger densities are likely to increase substantially, especially in its southern parts.
Nameri in Assam is contiguous to Pakke in Arunachal Pradesh and the tiger population in them is small with about nine together, the report said.
The area, it said, has potential for higher densities and ability to sustain a larger population of tigers but depletion of prey by poaching and other disturbances have led to decrease in tiger population.