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Primates

, Volume 26, Issue 4, pp 436–451 | Cite as

Habitat use, ranging behaviour, and food habits of the proboscis monkey,Nasalis larvatus (van Wurmb), in Sarawak

  • R. E. Salter
  • N. A. MacKenzie
  • N. Nightingale
  • K. M. Aken
  • P. Chai P. K.
Article

Abstract

Studies on the ecology of the proboscis monkey were conducted in seven areas of Sarawak during 1980–1981. Groups were found in a variety of riparian and coastal habitats but where high forests occurred they appeared to be preferred over other adjacent types. Undisturbed tidal forests were widely used but were preferred only where high forest was lacking or limited in extent. Clear-felled tidal forests and areas around human settlements were completely avoided, although some use was made of selectively felled tidal forests, remnant tidal forests adjacent to agricultural land, and selectively logged high forest. Monkeys slept primarily and perhaps exclusively along river edges where these were available, moving inland up to 750m during the day and returning to the riverside in late afternoon. Groups often split up into distinct subunits during daily movements. Feeding occurred throughout the day and in all habitats occupied. Proboscis monkeys were observed feeding on at least 90 plant species, including leaves or shoots of 75 species, fruits of 15 species, seeds of 10 species, and flowers of 4 species. Certain tidal forest species (Sonneratia alba, Avicennia alba, Bruguiera gymnorrhiza, Rhizophora spp.) appeared to be the single most important food plants, although where high forests were available more feeding time was spent in these types than in tidal forests or other habitats.

Key Words

Proboscis monkey Habitat Ranging behaviour Diet 

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References

  1. Altmann, J., 1974. Observational study of behaviour. Sampling methods.Behaviour, 49: 227–267.PubMedGoogle Scholar
  2. Beccari, O., 1904.Wanderings in the Great Forests of Borneo. Constable & Co., London.Google Scholar
  3. Bismark, M., 1980. Behaviour and population density of proboscis monkey (Nasalis larvatus) at Tanjung Puting Game Reserve, Central Kalimantan. Report No. 357, Forest Dept., Bogor, Indonesia. (in Indonesian with English summary)Google Scholar
  4. ————, 1981. Preliminary survey of the proboscis monkey at Tanjung Puting Reserve, Kalimantan,Tigerpaper, 8: 26.Google Scholar
  5. Chivers, D. J., 1974. The siamang in Malaya: a field study of a primate in tropical rain forest.Contr. Primatol., 4: 1–335.Google Scholar
  6. Davis, D. D., 1962. Mammals of the lowland rain-forest of North Borneo.Bull. National Mus. Singapore, 31: 1–130.Google Scholar
  7. IUCN, 1978. Proboscis or long-nosed monkey. Draft data sheet for Red Data Book. International Union for Conservation of Nature and Natural Resources, Gland, Switzerland.Google Scholar
  8. Jeffrey, S. M., 1979. The proboscis monkey, some preliminary observations.Tigerpaper, 6: 5–6.Google Scholar
  9. ————, 1982. Threats to the proboscis monkeys.Oryx, 16: 337–339.Google Scholar
  10. Johns, A. D., 1983. Tropical forest primates and logging—can they co-exist?Oryx, 17: 114–118.Google Scholar
  11. Kawabe, M. &T. Mano, 1972. Ecology and behavior of the wild proboscis monkey,Nasalis larvatus (Wurmb) in Sabah, Malaysia.Primates, 13: 213–227.CrossRefGoogle Scholar
  12. Kern, J. A., 1964. Observations on the habits of the proboscis monkey,Nasalis larvatus (Wurmb), made in the Brunei Bay area, Borneo.Zoologica, 49: 183–191.Google Scholar
  13. MacDonald, D. W., 1982. Notes on the size and composition of groups of proboscis monkey,Nasalis larvatus.Folia Primat., 37: 95–98.Google Scholar
  14. Medway, Lord, 1977. Mammals of Borneo. Field keys and an annotated checklist.Monogr. Malaysian Branch Royal Asiatic Soc., No. 7.Google Scholar
  15. Proud, K. R. S. & I. D. Hutchinson, 1980. Management of natural resources to maintain faunal diversity: a potential use for forest silviculture. In:Tropical Ecology and Development, Proc. 5th Int. Symp. on Tropical Ecology, Kaula Lumpur, 1979, pp. 247–255.Google Scholar
  16. Salter, R. E. &N. A. MacKenzie, 1985. Conservation status of the proboscis monkey in Sarawak.Biological Conservation, 33: 119–132.CrossRefGoogle Scholar

Copyright information

© Japan Monkey Centre 1985

Authors and Affiliations

  • R. E. Salter
    • 1
  • N. A. MacKenzie
    • 1
  • N. Nightingale
    • 2
  • K. M. Aken
    • 1
  • P. Chai P. K.
    • 3
  1. 1.Sarawak National Parks and Wildlife OfficeMalaysia
  2. 2.Oxford UniversityUK
  3. 3.Forest Department, KuchingSarawakEast Malaysia

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