Population of Long Tailed Monkey (Macaca fascicularis) in Tanjung Puting National Park, Central Kalimantan
Author : Michael D. Gumert, Devis Rachmawan, Entang Iskandar, Joko PamungkasAbstract
The survey of long-tailed monkeys (Macaca fascicularis) was carried out in Tanjung Puting National Park (TNTP). The survey uses pathways to determine the distance of long-tailed monkeys from the river bank and to be more efficient when identifying long-tailed monkeys in different habitats, as well as different weather and times in one day. The survey was also conducted repeatedly on a river that has a length of 7.4 km to calculate the population and know the diversity of identification at different times. In the final stage, the survey was carried out more extensively throughout the national park area by using all river trails that could be traversed (coastlines, rivers and creeks) that were located or flowed into the TNTP area. Based on the results of the survey, an extrapolation of the number of long-tailed monkey groups living along the TNTP river flow was carried out. The long-tailed monkey is an edge species and is found mainly within 1 km of the river bank. In addition, this species is easier to find in the afternoon along the river when they return to bed. Based on the broader survey, estimates of the number of groups of long-tailed monkeys in TNTP ranged from 750-850 groups, and the population size was between 13,321-23,100 individuals, while the average population density along the river was 7.50-13.01 individuals / km. Long tail monkey densities differ in each type of river flow and habitat. The results of this study are the first census data in TNTP, describing the characteristics of relatively undisturbed populations in rival forests, swamps and coastal habitats.
