Daily Activities of Released Silvery-Javan Gibbon Pair at Patiwel Forest, Gunung Gede-Pangrango National Park: A Preliminary Study

ABSTRACT

Research on a pair of released-silvery-javan gibbon (Hylobates moloch) conducted at Patiwel Forest Gunung Gede-Pangrango National Park, West Java on July-August 2010 to a pair of released silvery-javan gibbon, namely Achi and Septa. Those pair was released on October 2009. The objective of this research was to analyze the daily activities of released group of javan gibbon in their natural habitat. The study included, daily activities, such as feeding, traveling, resting and social behavior. The habitat study also conducted to know habitat preference of the gibbon. Data collected by using scan sampling and ad-liebetum sampling. The result showed that the pair of gibbon has used 11 hours for daily activity with time budget for feeding 25.6%, moving 38.9%, resting 29.3% and social activity 6.02%. Feeding activity started from the morning after woke up and make a morning calls. The most high frequency feeding time was from 08.00-09.00 in the morning. The composition of food that fed by the gibbon are fruit 85.22%, leaves 7.95%, flower
0.28% and insect 6.55%. During the study, we recorded 17 species food trees that consumed by
the gibbon, e.g. afrika (Maesopsis emonii), beunying (Ficus fistulosa) and kokosan monyet (Dysoxylum aleaceum). When ate the food, the gibbon preferred to use the upper canopy (63.1%). The gibbon use 35.6% from their total activity time budget to do moving activity. When moving they preferred to use upper canopy (60.53%). The average of the daily length of the gibbon was 1,500 m, which the shortest range was 1000 m and the longest ranger was 1950 m. The resting time consumed 29.36% from total daily time budget. When resting, they preferred use the upper tree canopy (59.09%) and the position when resting was sitting. Social activity was only 6.2% from total time budget. Kind of social activity recorded were call (70.7%), agonistic (25.3%) and grooming (4%).

Keywords: Silvery-javan gibbon, daily activity, behaviour, Patiwel forest

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Informasi Detil

Judul Seri

PROCEEDING INAFOR (International Conference of Indonesia Forestry Researchers)2011

No. Panggil

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Penerbit

: ., 2012

Deskripsi Fisik

2-11

Bahasa

English

ISBN/ISSN

978-979-8452-45-1

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