TIME BUDGET AND ACTIVITIES PATTERN OF CAPPED LANGURS TRACHYPITHECUS PILEATUS IN PAKKE WILDLIFE SANCTUARY, ARUNACHAL PRADESH, INDIA

摘要

Time allocation for activities in langurs are endorsed by environmental and habitat conditions. We studied time allocation for various activities by Capped Langurs Trachypithecuspileatus on daily, monthly, seasonal, and annual basis over one-year period in the Pakke Wildlife Sanctuary, Arunachal Pradesh, India. 90% of annual time budget was spent feeding and resting; the time devoted to resting was significantly higher (P<0.01) than that devoted to feeding. Seasonal variations (P<0.05) were found inboth feeding and resting times; the maximum time devoted to feeding was 39% in the winter; the maximum time devoted to resting was 59% in the monsoon. The amount of time devoted to major activities in different months was significantly (P<0.001) different. Feeding time was maximum (43%) in December and minimum (33%) in May; the variations were found to be significant (P < 0.01). The only month with maximum time (43%) devoted to feeding was in December, maximum resting (63%) time was in August, and maximum travelling (8%) time was in February in comparison to other months and remaining time was distributed to other activities. The diurnal activity budget of capped langurs indicated a bimodal feeding pattern. The evening feeding regime was significantlyhigher (P<0.05) than the morning one. It was 42% in morning hours and 51% in the evening.