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All Journal TREUBIA Forest and Society Journal of Business on Hospitality and Tourism
Jito Sugardjito
Faculty of Biology, Universitas NasionalJl. Sawo Manila, Pejaten, Pasar Minggu, Jakarta, Indonesia 12520
Agriculture, Biological Sciences & Forestry Education Environmental Science Social Sciences

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Journal : TREUBIA

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GEOGRAPHIC AND SEX DIFFERENCES IN POSlTIONAL BEHAVIOR OF ORANG-UTANS SUGARDJITO, JITO; CANT, JOHN G. H.
TREUBIA Vol 31, No 1 (1994): Vol. 31 No. 1, Januari 1994
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6086.685 KB) | DOI: 10.14203/treubia.v31i1.629

Abstract

The basic aim of this paper is to present a synthesis of the field work that we have been conducting on the positional behavior of orang-utans. The data have been collected from two study sites, of which one was at Ketambe, Gunung Leuser National Park, northern Sumatra and the other at Mentoko, Kutai National Park, eastern Kalimantan. We attempt to interpret positional behavior in an ecological context, and we evaluate several hypotheses, some of which can not be tested conclusively at the present time.
USE OF FOREST STRATA BY THE SUMATRAN ORANG-UTANS: A CONSIDERATION OF FUNCTIONAL ASPECTS SUGARDJITO, JITO
TREUBIA Vol 29, No 4 (1988): Vol. 29 No. 4, 1988
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v29i4.1547

Abstract

Differences in travel height between age-sex classes of the Sumatran orangutans are determined by locomotory efficiency in relation to body weight. The distribution of travel height in relation to resting heights suggests also possible influence of predation. Travel height does hardly restrain diet choice, because differences in diet between sexes are not associated with differences in strata utilization with regard to feeding.
Co-Authors Adhikerana, Asep Sunjaya Didik Prasetyo Hadiprakarsa, Yokyok JOHN G. H. CANT, JOHN G. H. Nasruddin Nasruddin Rismayani, Andi Simandjuntak, Herman S. Wanda Kuswanda Zulkarnaen, Sultandar