Skip to main content Accessibility help
×
×
Home

Population dynamics of the proboscis monkey Nasalis larvatus in the Lower Kinabatangan, Sabah, Borneo, Malaysia

  • Ikki Matsuda (a1), Nicola K. Abram (a2), Danica J. Stark (a3), John C. M. Sha (a4), Marc Ancrenaz (a5), Benoit Goossens (a3), Isabelle Lackman (a5), Augustine Tuuga (a6) and Takuya Kubo (a7)...
Abstract

The Endangered proboscis monkey Nasalis larvatus is endemic to the island of Borneo. Habitat loss is a major threat to this species, and an understanding of long-term demographic trends is crucial for its conservation. We assessed the population trends and group sizes of proboscis monkeys over 10 years in the Lower Kinabatangan floodplain in Sabah, Malaysian Borneo. Comparisons of observed populations between 2004 and 2014 revealed significantly reduced group sizes, which is probably a result of forest fragmentation. Three long-term studies over 34–73 months in specific areas showed fluctuating estimated densities in each area, but no overall population increase or decrease. Riparian forests are the most important habitat for these monkeys, and one reason for the relatively stable population could be that there were only minor losses of forest along rivers during 2004–2014 because protected areas have been established in the region in 2005. However, proboscis monkey habitat remains under threat in areas allocated for oil palm, and protection of these areas is paramount to maintaining this population.

Copyright
Corresponding author
(Corresponding author) E-mail ikki-matsuda@isc.chubu.ac.jp
(Corresponding author) E-mail nicola_abram@hotmail.com
Footnotes
Hide All
*

Contributed equally to this work

Also at: Wildlife Research Center, Kyoto University, Kyoto, Japan; Japan Monkey Centre, Inuyama, Japan; Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia

Also at: Waikiki Condominium, Jalan Aru, Tanjung Aru, 88100, Kota Kinabalu, Sabah, Malaysia; The University of Queensland, School of Biological Sciences, Brisbane, Australia; ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, Australia

§

Also at: Sabah Wildlife Department, Kota Kinabalu, Malaysia

Supplementary material for this article is available at https://doi.org/10.1017/S0030605318000467

Footnotes
References
Hide All
Abram, N.K., Xofis, P., Tzanopoulos, J., MacMillan, D.C., Ancrenaz, M., Chung, R. et al. (2014) Synergies for improving oil palm production and forest conservation in floodplain landscapes. PLoS ONE, 9, e95388.
Abram, N.K., MacMillan, D.C., Xofis, P., Ancrenaz, M., Tzanopoulos, J., Ong, R. et al. (2016) Identifying where REDD+ financially out-competes oil palm in floodplain landscapes using a fine-scale approach. PLOS ONE, 11, e0156481.
Boonratana, R. (2013) Fragmentation and its significance on the conservation of proboscis monkey (Nasalis larvatus) in the lower Kinabatangan, Sabah (North Borneo). In Primates in Fragments: Complexity and Resilience (eds Marsh, L.K. & Chapman, C.A.), pp. 459474. Springer, New York, USA.
Chapman, C.A., Chapman, L.J. & Wrangham, R.W. (1995) Ecological constraints on group size: an analysis of spider monkey and chimpanzee subgroups. Behavioral Ecology and Sociobiology, 36, 5970.
Chapman, C.A., Wasserman, M.D. & Gillespie, T.R. (2006) Behavioral patterns of colobus in logged and unlogged forests. In Primates of Western Uganda (eds Newton-Fisher, N.E., Notman, H., Paterson, J.D. & Reynolds, V.), pp. 373390. Springer, New York, USA.
Clarke, M.R., Collins, D.A. & Zucker, E.L. (2002) Responses to deforestation in a group of mantled howlers (Alouatta palliata) in Costa Rica. International Journal of Primatology, 23, 365381.
Clutton-Brock, T. & Janson, C. (2012) Primate socioecology at the crossroads: past, present, and future. Evolutionary Anthropology: Issues, News, and Reviews, 21, 136150.
Decker, B.S. & Kinnaird, M.F. (1992) Tana river red colobus and crested mangabey: results of recent censuses. American Journal of Primatology, 26, 4752.
Gaveau, D.L., Sloan, S., Molidena, E., Yaen, H., Sheil, D., Abram, N.K. et al. (2014) Four decades of forest persistence, clearance and logging on Borneo. PLOS ONE, 9, e101654.
IUCN (2008) IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN), Species Survival Commission (SSC), Gland, Switzerland and Cambridge, UK.
Janson, C.H. & Goldsmith, M.L. (1995) Predicting group size in primates: foraging costs and predation risks. Behavioral Ecology, 6, 326336.
Matsuda, I., Tuuga, A. & Higashi, S. (2009) The feeding ecology and activity budget of proboscis monkeys. American Journal of Primatology, 71, 478492.
Matsuda, I., Kubo, T., Tuuga, A. & Higashi, S. (2010a) A Bayesian analysis of the temporal change of local density of proboscis monkeys: implications for environmental effects on a multilevel society. American Journal of Physical Anthropology, 142, 235245.
Matsuda, I., Tuuga, A. & Higashi, S. (2010b) Effects of water level on sleeping-site selection and inter-group association in proboscis monkeys: why do they sleep alone inland on flooded days? Ecological Research, 25, 475482.
Matsuda, I., Otani, Y., Bernard, H., Wong, A. & Tuuga, A. (2016) Primate survey in a Bornean flooded forest: evaluation of best approach and best timing. Mammal Study, 41, 101106.
Matsuda, I., Tuuga, A. & Bernard, H. (2011) Riverine refuging by proboscis monkeys (Nasalis larvatus) and sympatric primates: implications for adaptive benefits of the riverine habitat. Mammalian Biology, 76, 165171.
Meijaard, E. & Nijman, V. (2000a) Distribution and conservation of the proboscis monkey (Nasalis larvatus) in Kalimantan, Indonesia. Biological Conservation, 92, 1524.
Meijaard, E. & Nijman, V. (2000b) The local extinction of the proboscis monkey Nasalis larvatus in Pulau Kaget Nature Reserve, Indonesia. Oryx, 34, 6670.
Planet Action (2012) Http://www.planet-action.org [accessed 25 February 2012].
Sabah Land Ordinance (2010) State of Sabah Land Ordinance (Sabah Cap. 68). Https://theredddesk.org/sites/default/files/land_ordinance_1975.pdf [accessed 6 September 2018].
Sha, J.C.M., Bernard, H. & Nathan, S. (2008) Status and conservation of proboscis monkeys (Nasalis larvatus) in Sabah, east Malaysia. Primate Conservation, 23, 107120.
Stark, D.J., Nijman, V., Lhota, S., Robins, J.G. & Goossens, B. (2012) Modeling population viability of local proboscis monkey Nasalis larvatus populations: conservation implications. Endangered Species Research, 16, 3143.
UNEP-WCMC (2003) UNEP-WCMC Species Database: CITES-Listed Species. United Nations Environment Programme (UNEP)—World Conservation Monitoring Centre (WCMC), http://sea.unep-wcmc.org [accessed 6 September 2018].
Yeager, C.P. (1989) Feeding ecology of the proboscis monkey (Nasalis larvatus). International Journal of Primatology, 10, 497530.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Oryx
  • ISSN: 0030-6053
  • EISSN: 1365-3008
  • URL: /core/journals/oryx
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Type Description Title
WORD
Supplementary materials

Matsuda et al. supplementary material
Matsuda et al. supplementary material 1

 Word (36 KB)
36 KB

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed