• Avinash Kumar
• Ravindra Kumar Singh

Counting tigers is difficult because they normally lie secretively in the dense forest. Pugmarks (Foot Prints) scratches on trees, calls, faecal analysis, hairs and occasional sightings are the only indication of their presence (WWF2001). Different estimates in different parts of the tiger ranges indicate that the world population of living tigers is 5000-7000 of which two thirds are Bengal tigers (P.t. tigris) in the Indian sub-continent (WWF 1999). The home of Bengal tiger is the Indian sub-continent (India, Bangladesh, Nepal and Bhutan) but they are also found in China (Tibet) and Western Myanmar. Habitat manipulation and conservation should always be done to increase tiger population density. It includes conservation of soil and water, improvement of food and control of grazing in Buffer zone.

Valmiki National Park, Ecology, Population Density, Pugmarks, Habitat Manipulation.

"STUDIES OF VALMIKI NATIONAL PARK, BIHAR WITH REFERENCE TO TIGER POPULATION DENSITY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.273-277, June 2019, Available :http://www.jetir.org/papers/JETIR1907I37.pdf

"STUDIES OF VALMIKI NATIONAL PARK, BIHAR WITH REFERENCE TO TIGER POPULATION DENSITY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp273-277, June 2019, Available at : http://www.jetir.org/papers/JETIR1907I37.pdf