Abundance and Distribution of Sympatric Gibbons in a Threatened Sumatran Rain Forest

  title={Abundance and Distribution of Sympatric Gibbons in a Threatened Sumatran Rain Forest},
  author={Timothy G O'Brien and Margaret F. Kinnaird and Anton Nurcahyo and Mohamed Cassim Mohamed Iqbal and Mohamed Rusmanto},
  journal={International Journal of Primatology},
Agile gibbons (Hylobates agilis) and siamangs (Symphalangus syndactylus) are sympatric small apes inhabiting threatened forests of Sumatra, Indonesia. We censused both species in the 3,568-km2 Bukit Barisan Selatan National Park, at the southern limit of their ranges, over a 7-mo period in 2001. First, we monitored daily calling rates from known populations to develop probabilities of calling during a specified number of days and used the probability of calling at ≥1 time during 3 days to… CONTINUE READING
Highly Cited
This paper has 30 citations. REVIEW CITATIONS

From This Paper

Figures, tables, and topics from this paper.


Publications citing this paper.
Showing 1-10 of 18 extracted citations

Social Relationships among Males in Multimale Siamang Groups

International Journal of Primatology • 2007
View 4 Excerpts
Highly Influenced

A distance sampling approach to estimate density and abundance of gibbon groups.

American journal of primatology • 2018
View 1 Excerpt
Highly Influenced


Publications referenced by this paper.
Showing 1-10 of 43 references

Demography of agile gibbons (Hylobates agilis)

International Journal of Primatology • 2005
View 9 Excerpts
Highly Influenced

Deforestation trends in a tropical landscape and implications for endangered mammals

M. F. Kinnaird, E. W. Sanderson, T. G. O’Brien, H. T. Wibisono, G. Woolmer
Conserv. Biol • 2003
View 8 Excerpts
Highly Influenced

The Population Distribution and Abundance of Primates in Kerinci-Seblat National Park, Sumatra

A. Yanuar
Unpublished MSc Thesis, • 2001
View 6 Excerpts
Highly Influenced

Distance Sampling: Estimating the Abundance of Biological Populations

S. T. Buckland, D. R. Anderson, K. P. Burnham, J. L. Laake
View 5 Excerpts
Highly Influenced

Estimation of density of gibbon groups by use of loud songs

W. Y. Brockelman, S. Srikosamatara
Am . J . Primatol . • 1993
View 4 Excerpts
Highly Influenced

Feeding and Ranging in Gibbons: A Summary

D. J. Chivers
Preuschroft, H., Chivers, D., Brockelman, W., and Creel, N. (eds.), The Lesser Apes, Edinburgh University Press, Edinburgh, UK, pp. 267–281. • 1984
View 6 Excerpts
Highly Influenced

An Ecology Study of the Pig-Tailed Macaques in Peninsular Malaysia

J. O. Caldecott
Unpublished PhD Dissertation, • 1982
View 6 Excerpts
Highly Influenced

Effects of natural habitat differences on the abundance of Malaysian primates

C. W. Marsh, W. L. Wilson
Malay. J. Appl. Biol. 10: 227–249. • 1981
View 6 Excerpts
Highly Influenced

The siamang in Malaya. A field study of a primate in tropical rain forest.

Contributions to primatology • 1974
View 12 Excerpts
Highly Influenced

Crouching tiger, hidden prey: Sumatran tiger and prey populations in a tropical forest landscape

T. G. O’Brien, M. F. Kinnaird, H. T. Wibisono
Anim. Conserv • 2003
View 8 Excerpts
Highly Influenced

Similar Papers

Loading similar papers…