ORANGUTAN EXPLANATION PATTERN (Pongo pygmaeus morio) IN METOKO AND PREFAB RESEARCH STATIONS IN TAMAN NASIONAL KUTAI, KALIMANTAN TIMUR

Author : Agnes Ferisa, Ani Mardiastuti, dan Entang Iskandar

Abstract
This study aims to calculate the range of daily roaming, roaming areas, core areas of each individual orangutan and roaming areas that overlap between individuals in Mentoko and Prefab. The study was conducted from May to September 2012 with a total observation time of 415.67 hours from 3 individuals per research station. Roaming data collection was carried out using the focal animal sampling method with waypoints taken per 15 minutes while following orangutans and analyzed using ArcGIS and kernel density estimation (kde). The results of the ArcGIS calculation show the average daily range in Mentoko is 0.563 km / day (interval 0.339 km / day-0.749 km / day), and Prefab is 0.609 km / day (interval 0.423 km / day-0.570 km / day). The average home range of Mentoko orangutans is 0.619 km2 (0.045 km2-0.401 km2) with a core area of ​​0.045 km2 (interval 0.007 km2-0.113 km2), Prefab home range covering 0.117 km2 (interval 0.061 km2-0.197 km2) with core area 0.038 km2 (interval 0.009 km2-0.079 km2). While overlapping occurred in Bayur-Labu individuals covering 0.052 km2 and Bayur-Mawar 0.058 km2.

Keywords: Core area, Home range, Daily roaming, Pongo pygmaeus morio, Kutai National Park, Overlapping.

 

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