Year of compilation: 2004
AVIFAUNA: No work on the bird fauna has been done in this Sanctuary, except for sight records of White-winged Duck Cairina scutulata by Choudhury (2000). This site has been selected as an IBA only on the basis of occurrence of this highly endangered species. However, more globally threatened forest species are likely to occur here. The forest, though small, and partitioned by a railway line and a kutcha road, is still intact. Many forest species are likely to occur here. We consider this as a Data Deficient site because good information on the bird life is lacking.
OTHER KEY FAUNA: The other fauna of the Sanctuary includes Asian Elephant Elephas maximus, Tiger Panthera tigris, Leopard P. pardus, Leopard Cat Prionailurus bengalensis, Sambar Cervus unicolor (no recent sighting), Barking Deer Muntiacus muntjak, Wild Boar Sus scrofa, Chinese Porcupine Hystrix brachyura, Chinese Pangolin Manis pentadactyla and Malayan Giant Squirrel Ratufa bicolor. Primates recorded were Slow Loris Nycticebus coucang, Assamese Macaque M. assamensis, Rhesus Macaque M. mulatta, Pig-tailed Macaque M. nemestrina, Stump-tailed Macaque, Capped Langur Trachypithecus pileatus and Hoolock Gibbon (Choudhury 1999).
Indian Rock Python Python molurus and a variety of other snakes are also found.
Hollongapar is an isolated forest patch surrounded by tea plantations and human settlements. Once it was contiguous with the large forest tract that extended to Nagaland. A barrier of tea gardens now separates the nearest forest areas of Disoi and Disoi Valley Reserve Forests. Moreover, the habitat in these forests has been badly degraded due to continuous felling and encroachment. There is conflict with Asian Elephants, as more than a dozen animals are confined in a small area, and their moving about often creates problem for the villagers and tea garden labourers. There were some good forest patches in the tea estates outside the Reserve Forest that used to supplement the habitat requirement of some species, including the Elephants, Rhesus Macaques and Capped Langurs. Now most of these areas have been cleared and planted with tea, which makes them unsuitable for wildlife. Charaching of birds and mammals by poachers from Nagaland and tea garden labourers is also another cause of concern for the wildlife in this IBA. The railway line passing through the forest has created an effective barrier to the movement of the Slow Loris and Hoolock Gibbon. The neighboring tea estates and villages also use the gravel road through the forest that connects Madhupur with Meleng, and this creates disturbance inside the Sanctuary. Thus, regular patrolling along the sanctuary portion of the Mariani - Amguri road, setting up of an anti-poaching camp on the main road, legal acquisition of additional land from the adjacent tea estates, and motivation of the villagers and tea garden labourers are conservation actions that need to be taken up urgently.
BirdLife International (2020) Important Bird Areas factsheet: Gibbon (Hollongapar) Sanctuary. Downloaded from http://www.birdlife.org on 26/11/2020.