The Gibbons pp 409-433 | Cite as

The Distribution and Abundance of Hoolock Gibbons in India

  • Jayanta Das
  • Jihosuo Biswas
  • Parimal C. Bhattacherjee
  • S.M. Mohnot
Part of the Developments in Primatology: Progress and Prospects book series (DIPR)


A clear understanding of the distribution of organisms in time and space is central to the evaluation of the conservation status of threatened species and critical for the formulation of appropriate conservation strategies. The hoolock gibbon has a broad geographic distribution across tropical and subtropical regions of Bangladesh, China, India, and Myanmar. Groves (1967) distinguished two subspecies of hoolocks based on the variation in pelage coloration on opposite banks of the river Chindwin in Myanmar: Hoolock hoolock hoolock (the western hoolock gibbon) and Hoolock hoolock leuconedys (the eastern hoolock gibbon). Subsequently, Mootnick and Groves (2005) described these taxa as distinct species.

Distribution of the Western Species (H. hoolock)

The eastern limit of the western species is believed to be the river Chindwin of Myanmar (Groves 1967, 1972). H. hoolock is found as far west as the forests of Sylhet, Chittagong (Gittins 1980; Gittins and Akonda 1982), and...


Forest Patch Reserve Forest Wildlife Sanctuary Solitary Individual Forest Division 
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This work was supported by the Indo-US Primate Project, the Great Ape Conservation Fund of the U.S. Fish and Wildlife Service, Primate Action Fund, Primate Conservation Inc., and Margot Marsh Biodiversity Foundation. Scientific advice was given by Prof. Charles Southwick, Prof. Irwin Bernstein, Mr. David A. Ferguson, Mr. Fred Bagley, Mr. William Konstant, and Dr. Rob Horwich. We are also thankful to Dr. Danielle Whittaker and Dr. Susan Lappan for their valuable comments on the manuscript, and for assistance with the figures. We are also thankful to all Principal Chief Conservators of Forests and Chief Conservators of Forests (Wildlife) of Arunachal Pradesh, Assam, Meghalaya, Mizoram, Manipur, Nagaland, and Tripura. Thanks to PCCF, Assam, and Mr. M.C. Malakar for giving us permission and logistical support for this work. We extend our sincere thanks to all the local forest officials and to our research team (Dr. A. Srivastava, Dr. D. Chetry, Dr. R. Medhi, Dr. P. Bujarboruah, Dr. P. Sarkar, Dr. J. Bose, Mr. U. Phukan, Mr. G. Banik, Mr. R. Nath, Mr. N. Das, Mr. L.S. Darney, Mr. A. Das, Mr. D. Borah, and Md. S.S.G. Ahmed). Without the support from the local villagers and field assistants this work would not have been possible.


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Jayanta Das
    • 1
    • 2
    • 3
  • Jihosuo Biswas
    • 1
    • 3
  • Parimal C. Bhattacherjee
    • 1
    • 3
  • S.M. Mohnot
  1. 1.Primate Research Centre, Northeast Centre, PanduGuwahatiIndia
  2. 2.Wildlife Areas Development and Welfare TrustGuwahatiIndia
  3. 3.Animal Ecology and Wildlife Biology Laboratory, Department of ZoologyGauhati UniversityGuwahatiIndia

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