author(s)
Vijay Kumar Yadav, PS Chauhan, DS Chauhan, Subhasis Mahato and Aditya Kumar Jayant

abstract
The current study was conducted in Urgam beat of the Nanda Devi Biosphere Reserve, in the month of April 2017. The study area is covered by 2350 ha and located in Urgam forest beat in NDBR, Chamoli district Garhwal Himalaya in Uttarakhand state. A total of 8 large mammals species were recorded during the study period. Direct and indirect methods were used to assess the diversity of large mammals found in the study area. Six trail-transects of different lengths were laid and total distance 16 km were covered within 45 hours effort. Density of large mammals was recorded based on the presence and absence in the study area. The result shows that maximum encounter rate (5.44 group/km) was estimated for Hemitragus jemlahicus. The maximum density was observed for Hemitragus jemlahicus (14.50±2.89) followed by Semnopithecus schistaceus (5.06±0.52). This is a short term study in this area but further detailed study will be needed for the conservation and management aspect.