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

Main Article Content

Kuladeep Roy
Himani Nautiyal
Soumya Dasgupta

Abstract

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. 

 

Article Details

Section
Communications
Author Biographies

Kuladeep Roy, F-13, Sector-8, Noida, Uttar Pradesh 201301, India

Dr. Kuladeep Roy worked as an Assistant Manger and Project lead in Dibang Valley Conservation Project under Wildlife Trust of India. He personally took the responsibility of the Hoolock Gibbon Translocation Project as well as its associated works. He recently joined as a Programme Officer in ENVIS Centre of Zoological Survey of India, Kolkata. 

 

Himani Nautiyal, School of Natural Science and Engineering, National Institute of Advance studies, IISc Campus, Bengaluru, Karnataka 560012, India

Ms. Himani Nautiyal joined in the Hoolock Gibbon Translocation Project as a volunteer and for her partial fulfilment of the bachelor dissertation work on eastern Hoolock Gibbon in Mehao Wildlife Sanctuary. Presently she works on ecology, behaviour and conservation programme of Central Himalayan Langur in Kedarnath Wildlife Sanctuary as a research associate of National School of Advance Studies.

 

Soumya Dasgupta, School of Natural Science and Engineering, National Institute of Advance studies, IISc Campus, Bengaluru, Karnataka 560012, India

Mr. Soumya Dasgupta also works as an Assistant Manager in Wildlife Trust of India for last eight years mostly in Arunachal Pradesh and eastern Himalayan region. Presently, he continues his works in central India landscape under the same organization. 

 

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