Ecology, Environment and Conservation Paper

Vol 24, Issue 4 2018; Page No.(1946-1951)

RANGING AND FEEDING ECOLOGY OF JAVAN LANGUR (TRACHYPITHECUS AURATUS) REHABILITATION IN COBAN TALUN PROTECTED FOREST, BATU, EAST JAVA, INDONESIA

Emanuel Naitio, Amin Setyo Leksono and Bagyo Yanuwiadi

Abstract

A study of ranging and feeding ecology of Javan langur (Trachypithecus auratus) rehabilitation was conducted at Coban Talun Protected Forest in East Java, Indonesia. The data collection of homerange, teritory and overlay were done by tracking and marking the Javan langur using GPS (Global Positioning System). The vegetation data was collected by investigating nest sites, food plants and canopy level. Behaviour and dietary data was collected by focal animal sampling with 5 individuals during daily observation period from (0600 – 1700) for 20 consecutive surveys. This study showed that Trachypitechus auratus begin the activity by moving from the nest trees to food plant at the morning. The routes of movement changed daily depend on its homerange typologi. In addition, the location of nest shifted to other trees. In avarage, the daily tracking is 131.99 meters. Based on the movement, this study showed that Javan langur has a total homerange 9.5 Ha. The diets of Javan langurs consisted of young leaf, mature leaf and flower. Acer laurinum, Ficus benjamina, Quercus sundaica, and Barringtonia spicata were among the dominant food species for this species. Essentially, Quercus sp., Quercus sundaica, Ficus sp., Erythrina fusca, Trema orientalis, Engelhardia spicata, Ficus padana, Homalanthus sp., Aglaia sp., Saurauia sp. were considered common sleep tree and rest site for the langurs in the study area.

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