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  • Cited by 5
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    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.

    Höing, Andrea Quinten, Marcel C. Indrawati, Yohana Maria Cheyne, Susan M. and Waltert, Matthias 2013. Line Transect and Triangulation Surveys Provide Reliable Estimates of the Density of Kloss’ Gibbons (Hylobates klossii) on Siberut Island, Indonesia. International Journal of Primatology, Vol. 34, Issue. 1, p. 148.

    Erb, Wendy M. Borries, Carola Lestari, Nurul S. and Hodges, J. Keith 2012. Annual Variation in Ecology and Reproduction of Wild Simakobu (Simias concolor). International Journal of Primatology, Vol. 33, Issue. 6, p. 1406.

    Grueter, Cyril C. Jiang, Xuelong Konrad, Roger Fan, Pengfei Guan, Zhenhua and Geissmann, Thomas 2009. Are Hylobates lar Extirpated from China?. International Journal of Primatology, Vol. 30, Issue. 4, p. 553.

    Corlett, Richard T. 2007. The Impact of Hunting on the Mammalian Fauna of Tropical Asian Forests. Biotropica, Vol. 39, Issue. 3, p. 292.

    Whittaker, Danielle J. 2006. A Conservation Action Plan for the Mentawai Primates. Primate Conservation, Vol. 20, p. 95.


New population estimates for the endemic Kloss's gibbon Hylobates klossii on the Mentawai Islands, Indonesia

  • Danielle J. Whittaker (a1)
  • DOI:
  • Published online: 19 October 2005

The Vulnerable endemic Kloss's gibbon was surveyed throughout the Mentawai Islands, Sumatra, Indonesia, using a call-based method. Populations were estimated by extrapolating from local densities using recent assessments of remaining forest cover. About 20,000–25,000 Kloss's gibbons remain in nearly 3,000 km2 of forest (about 40% of the islands' total area). This number is markedly lower than a 1980 estimate of 36,000 on the northernmost island of Siberut. Conservation action to preserve the remaining populations should focus on strengthening the enforcement of regulations in Siberut National Park, formally protecting the Peleonan forest in north Siberut, and cooperating with a logging company in North and South Pagai to protect the populations in the company's self-established conservation and buffer areas.

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  • ISSN: 0030-6053
  • EISSN: 1365-3008
  • URL: /core/journals/oryx
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