Abstract
Abstract The Northern Plains sacred langurs are characterized by their ability to adapt to a variety of habitats. We compared activity budgets of two langur groups, one living in the rural area and the other in the center of Keshabpur town. Data was collected from September, 2012 to August, 2013 through continuous focal animal sampling. Types of different food items and its availability in two habitats were mainly responsible for the variations in activity budgets. We found time spent feeding and resting were significantly higher in the urban group whereas, langurs of the rural group spent more time in moving. There were no significant differences in time spent on grooming and other social interactions. Seasonal variations in all major behaviors were significantly affected by groups. Langurs of both groups spent greater time on feeding and resting in the winter than other seasons while moving was at its peak in the summer. Females spent more time in grooming than males while males spent more time in vigilance and interaction than females. The langurs showed a considerable behavioral plasticity in response to variation of habitat and resources, and the knowledge of these differences is important for the conservation and management of this species.
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