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An acute conservation threat to two tarsier species in the Sangihe Island chain, North Sulawesi, Indonesia

  • Myron Shekelle (a1) and Agus Salim (a2)
Abstract
Abstract

Until recently the conservation status of seven of the nine species of tarsier on the IUCN Red List was Data Deficient, and determining the status of these species has been a priority. In addition, there are believed to be numerous cryptic tarsier taxa. Tarsiers have been proposed as flagship species to promote conservation in the biogeographical region that includes Sulawesi and surrounding island chains. Therefore, identifying and naming cryptic tarsier species and determining their conservation status is not only a priority for tarsier conservation but also for regional biodiversity conservation. Two tarsier species, Tarsius sangirensis from Sangihe Island and Tarsius tumpara from Siau Island, occur within the Sangihe Islands, a volcanic arc stretching c. 200 km north from the northern tip of Sulawesi. The geographical information system database from The Nature Conservancy's Sulawesi Ecoregional Conservation Assessment was used in conjunction with field surveys to determine the conservation status of these two species. Our results show that both species are at risk from a small extent of occurrence and area of occupancy, small population size, high risk of volcanism, high human population density, fragmented populations (many of which are in marginal habitat), and lack of conservation areas for either species. In addition, there are no available ex situ conservation options. The Siau population is further threatened by hunting for bushmeat. Our recommendations are that T. sangirensis be categorized as Endangered and T. tumpara, which was included on the 2006–2008 list of the world's top 25 most endangered primates, as Critically Endangered on the IUCN Red List.

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Corresponding author
Center for Biodiversity and Conservation Studies, Faculty of Mathematics and Science, University of Indonesia, Depok, Indonesia. E-mail dbssm@nus.edu.sg
References
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Brandon-Jones D., Eudey A.A., Geissmann T., Groves C.P., Melnick D.J., Morales J.C. et al. (2004) Asian primate classification. International Journal of Primatology, 25, 97164.
Fitch-Snyder H. (2003) History of captive tarsier conservation. In Tarsiers: Past, Present, and Future (eds Wright P.C., Simons E.L. & Gursky S.), pp. 277295. Rutgers University Press, New Brunswick, USA.
Global Volcanism Program (2006a) Awu. Http://www.volcano.si.edu/world/volcano.cfm?vnum=0607-04= [accessed 21 July 2006].
Global Volcanism Program (2006b) Karangetang [Api Siau]. Http://www.volcano.si.edu/world/volcano.cfm?vnum=0607-02= [accessed 24 February 2008].
Gursky S.L. (1997) Modeling maternal time budget: the impact of lactation and infant transport on the time budget of the spectral tarsier, Tarsius spectrum. PhD thesis, State University of New York, Stony Brook, USA.
IUCN (2001) 2001 Categories and Criteria (version 3.1). IUCN, Gland, Switzerland [http://www.iucnredlist.org/static/categories_criteria_3_1, accessed 17 April 2009].
IUCN (2007) 2007 IUCN Red List of Threatened Species. IUCN, Gland, Switzerland. Http://www.iucnredlist.org [accessed 17 September 2007].
Lowe C. (2006) Wild Profusion: Biodiversity Conservation in an Indonesian Archipelago. Princeton University Press, Princeton, USA.
MacKinnon J. & MacKinnon K. (1980) The behaviour of wild spectral tarsiers. International Journal of Primatology, 1, 361379.
Merker S. (2003) Vom Aussterben bedroht oder anpassungsfaehig? - Der Koboldmaki Tarsius dianae in den Regenwaeldern Sulawesis. PhD thesis, University of Goettingen, Goettingen, Germany.
Meyer A.B. (1897) Säugethiere vom Celebes- und Philippinen-Archipel, I. Abhandlungen und Berichte der Kaiserlich Zoologische und Anthropologische-Ethnologische Museum zu Dresden, 6, 136.
Mittermeier R.A., Ratsimbazafy J., Rylands A.B., Williamson L., Oates J.F., Mbora D. et al. (2007) Primates in peril: the world's 25 most endangered primates, 2006–2008. Primate Conservation, 22, 140.
Pusat Geologi Bandung (1978–1981) Department Pertambangan dan Energi, Indonesia.
Riley J. (2002) Mammals on the Sangihe and Taluad Islands, Indonesia, and the impact of hunting and habitat loss. Oryx, 36, 288296.
Rylands A.B., Williamson E.A., Hoffmann M. & Mittermeier R.A. (2008) Primate surveys and conservation assessments. Oryx, 42, 313314.
Sensus Penduduk Indonesia (2000) Biro Pusat Statistik, Jakarta, Indonesia.
Shekelle M. (2003) Taxonomy and biogeography of eastern tarsiers. PhD thesis, Washington University, St Louis, USA.
Shekelle M., Groves C., Merker S. & Supriatna S. (2008) Tarsius tumpara: a new tarsier species from Siau Island, North Sulawesi. Primate Conservation, 23, 5564.
Shekelle M. & Leksono S.M. (2004) Rencana Konservasi di Pulau Sulawesi: Dengan Menggunakan Tarsius Sebagai ‘Flagship’ Spesies. Biota, 9, 110.
Shekelle M., Morales J.C., Niemitz C., Ichwan L.S.I. & Melnick D.M. (2008) The distribution of tarsier mtDNA haplotypes for parts of north and central Sulawesi: a preliminary analysis. In Primates of the Oriental Night (eds Shekelle M., Groves C., Maryanto I., Schulze H. & Fitch-Snyder S.), pp. 5169. Research Center for Biology, Indonesian Institute of Sciences, Bogor, Indonesia.
Shekelle M. & Nietsch A. (2008) Tarsier longevity: data from a recapture in the wild and from captive animals. In Primates of the Oriental Night (eds Shekelle M., Groves C., Maryanto I., Schulze H. & Fitch-Snyder H.), pp. 8590. Research Center for Biology, Indonesian Institute of Sciences, Bogor, Indonesia.
Sodhi N.S., Acciaioli G., Erb M. & Tan A.K-J. (eds) (2007) Biodiversity and Human Livelihoods in Protected Areas: Case Studies from the Malay Archipelago. Cambridge University Press, Cambridge, UK.
Summers M.L.B, Gunawan T., Salim A., Sriyanto A., Tasirin J., Iskandar D. et al. (2005) Sulawesi Ecoregional Conservation Assessment: A Conservation Vision for a Global Treasure. Unpublished analysis. The Nature Conservancy, Arlington, USA.
Supriatna J., Manansang J., Tumbelaka L., Andayani N., Indrawan M., Darmawan L. et al. . (eds) (2001) Conservation Assessment and Management Plan for the Primates of Indonesia: Final Report. IUCN/Species Survival Commission Conservation Breeding Specialist Group, Apple Valley, USA.
Whitten T. (2006) Cerulean paradise-flycatcher not extinct: subject of first cover lives. Conservation Biology, 20, 918920.
Whitten T., Nash S.D. & Bishop K.D. (1987) One or more extinctions from Sulawesi? Conservation Biology, 1, 4248.
Wright P.C. (2003) Are tarsiers silently leaping into extinction? In Tarsiers: Past, Present, and Future (eds Wright P.C., Simons E.L. & Gursky S.), pp. 296308. Rutgers University Press, New Brunswick, USA.
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Oryx
  • ISSN: 0030-6053
  • EISSN: 1365-3008
  • URL: /core/journals/oryx
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