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2 documents found tagged eastern hoolock gibbon [X]
  • Title
    A preliminary study on the activity budget of post released Eastern Hoolock Gibbon Hoolock leuconedys (Mammalia: Primates: Hylobatidae) in Mehao Wildlife Sanctuary, Arunachal Pradesh, India
    Type
    Journal Article
    Description
    The Wildlife Trust of India has taken a long term responsibility to identify a suitable habitat for the threatened families of Eastern Hoolock Gibbon from a village called Dello in Arunachal Pradesh to a nearby forested area which was the earlier home of this species. There is an ongoing successful rescue and translocation programme since November, 2011 in which four Eastern Hoolock Gibbon families comprising 11 individuals were translocated in three different habitat types in and around the forested area of the Mehao Wildlife Sanctuary.  Post-release monitoring is an obvious and required technique to study the rescued families of Eastern Hoolock Gibbons after translocation to confirm their post-release survival and better livelihood.  The regular monitoring of the activity patterns has helped to understand the habitat utilization and resource use in the newly released sites. Along with the rescue operation, there is an additional task to find out the potential habitats to define as ideal release sites for gibbons.  The post release monitoring was studied through the instantaneous scan sampling method to collect the information mostly about their activity patterns.  The present study describes the overall activity patterns and resource use in the released gibbons on the basis of utilization of different habitat types.  It was observed that the ranging pattern was mostly influenced by the resource availability and forest type.  The gibbon family released in the denser forest habitat developed a general food habit whereas the family from the thinner forest area became the specialist consumer.  However, further detailed study with sufficient data is required to comment on their general ecology.  
    Attribution
    Roy Kuladeep, Nautiyal Himani, Dasgupta Soumya (2015). Journal of Threatened Taxa 12(7) pp. 7862-7869; doi:10.11609/jott.2376.7862-7869
  • Title
    Status and conservation of Eastern Hoolock Gibbon Hoolock leuconedys in Assam, India
    Type
    Journal Article
    Description
    A field survey was conducted in 2010 from March to May in the reserve forests of Sadiya sub-division, in the Tinsukia District of Assam, India, to investigate the status of the Hoolock Gibbon. The data were collected using modified line-transect and call-count methods. We recorded 10 groups of gibbons in three reserve forests, through direct sighting. Of the 33 individuals recorded through direct sighting 63.6% were adults, 21.2% juveniles and 15.2% infants. The average group size of the sighted groups was 3.3 individuals, with an adult sex ratio of 1:1.1. We also recorded 10 groups of Rhesus Macaques in the area. Anthropogenic pressures included encroachment, felling of trees and inadequate infrastructure, and these were the major threats for Hoolock Gibbon and other wildlife in the region. Notably, the gibbons of Sadiya have been identified as the Eastern Hoolock Gibbon Hoolock leuconedys and this is the first report of the species from Assam.
    Attribution
    Chetry R., Chetry D., Bhattacharjee P.C. (2012). Journal of Threatened Taxa 13(4) pp. 3183-3189; doi:10.11609/JoTT.o3073.3183-9