, Volume 27, Issue 2, pp 185–190 | Cite as

Group composition, home range, and diet of the maroon leaf monkey (Presbytis rubicunda) at Tanjung Puting Reserve, Central Kalimantan, Indonesia

  • Jatna Supriatna
  • Barita Oloan Manullang
  • Endang Soekara


Maroon leaf monkeys (Presbytis rubicunda) were studied at the Orangutan Research Conservation Project study area at the Tanjung Puting Reserve in Central Indonesian Borneo for approximately 15 months in 1974, 1975, and 1977. Over 250 observation hr involving 300 encounters with the monkeys were logged. Troop size ranged from three to eight individuals in the nine troops surveyed with only one adult male being present in each troop. Home range size varied from 0.33 km2 to 0.99 km2 and correlated with troop size. Forty-six different food types were observed eaten by the maroon leaf monkeys; of these foods, 52% consisted of fruits, 36% of leaves, and 12% of flowers.

Key Words

Presbytis rubicunda Group composition Diet Home range Central Kalimantan, Indonesia 


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Copyright information

© Japan Monkey Centre 1986

Authors and Affiliations

  • Jatna Supriatna
    • 1
  • Barita Oloan Manullang
    • 2
  • Endang Soekara
    • 2
  1. 1.University of IndonesiaIndonesia
  2. 2.Universitas NasionalJakarta

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