Hostname: page-component-74656f9884-npj9w Total loading time: 0 Render date: 2026-11-08T11:47:15.834Z Has data issue: false hasContentIssue false
  • English
  • Français

Sumatra's Orang-utans

Published online by Cambridge University Press:  24 April 2009

Markus Borner
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the 'Save PDF' action button.

In the course of his WWF survey for rhinos in Sumatra, the author also made a study of orang-utans. He came to the conclusion that the total number in Sumatra is not more than 3500–4500, despite higher figures that have been circulated, and that probably half of these – the animals living in forests outside the nature reserves – are severely threatened. Not only are they hunted and poached, but their habitat is being rapidly destroyed by big timber companies with concessions for clear-felling-15½ million cubic metres of timber were exported in 1973.

Information

Type
Research Article
Information
Oryx , Volume 13 , Issue 3 , February 1976 , pp. 290 - 293
Copyright
Copyright © Fauna and Flora International 1976

References

1.Carpenter, C. R. 1938. A survey of wildlife conditions in Aceh, North Sumatra with special reference to the orang-utan. Mededelingen No. 12, Nederlandsche Commissie voor Internationale Natuurbescherming, Amsterdam.Google Scholar
2.Harrisson, B. 1961. Orang-utan – what chances of survival? Sarawak Museum Journal N.S. 10 (17–18): 238–261.Google Scholar
3.Kurt, F. 1971. Final report to IUCN/SCC and WWF International of WWF Project 596: Leuser Reserve, Sumatra (unpubl.).Google Scholar
4.Mackinnon, M. J. R. a. Orang-utans in Sumatra. Oryx 12, 2:234. b.CrossRefGoogle Scholar
4.Mackinnon, M. J. R. b. 1974 The behaviour and ecology of wild orang-utans. Pongo pygmaeus. An. Behav., 22 3–74.CrossRefGoogle Scholar
5.Milton, O. 1964. The orang-utan and rhinoceros in North Sumatra. Oryx 7(4): 177–184.CrossRefGoogle Scholar
6.Rijksen, Herman D. and Ans, G. Ruksen-Graatsma. 1975. Orang-utan rescue work in North Sumatra. Oryx 13(1): 63–73.CrossRefGoogle Scholar
7.Schenkel, R. and , L. 1969. Report on a WWF mission to the Gunung Leuser Reserve (unpubl.).Google Scholar
8.Schenkel, R., 1972. Forestry in Indonesia. Directorate General of Forestry, Department of Agriculture, Indonesia.Google Scholar
9.Schenkel, R., 1972. Hutan kita. Direktorat Jenderal Kehutanan. Department Pertanian, Jakarta.Google Scholar