The Dibang Valley WLS is located in the Upper Dibang Valley district covering an area of 4,149 km2 (1,602 sq mi). The sanctuary is rich in wildlife. Dibang Wildlife Sanctuary is located fully or partly within Dihang-Dibang Biosphere Reserve.
The Dibang Wildlife Sanctuary lies adjacent to the Mouling National Park, and was declared as one of the major bio-diversity hotspots of the world by UNESCO in 1988.
The Dibang Wildlife Sanctuary is located in north east of Anini. It has been named after the Dibang River, a tributary of Brahmaputra River.
The Dibang Wildlife Sanctuary was created in 1992 vide notification No. DV/DEV/15(XVI)/91-92/23589-97. Roing 12th Feb.’02.
Location and Geography
The geography of the Sanctuary area is Mountainous, consisting steep to very steep and rugged terrain.
The Eastern part of the Himalayas consists of Eastern Tibet, the Yamana province of South China, Hainan the Northern part of the Indo-China, Burma and northern part of Thailand.
Ranging between the altitude of 1800m and 5000m, the sanctuary is spread across an area of 4149 sq km covering a topology of complex rugged terrain hills which are steep to very steep in altitude. The demographic variation can be spotted in the forms of mountains with snow clad peaks, deep and narrow gorges, dense forests and luxuriant rivers flowing by.
The sanctuary region experiences extreme freezing temperatures in the winter, accompanied by snowfall of nearly 6m to 10m depth. The rainfall, too, is heavy from south west and north east monsoons. Summers are mostly hot and exhausting with temperature ranging between 18 degrees and 30 degrees. On that note, winters are freezing with temperature falling to subzero.
Nature has blessed the Dibang Wildlife Sanctuary with its best of flora, fauna and avifauna. The flora is mainly ruled by the vegetation of temperate and alpine type. The two main types of vegetations in this region are temperate broad leaved forest and temperate conifer forest.
Alpine vegetation occurs at higher altitude with herbs, stunted trees and dwarf bushes. A stretch of bright colored gregarious flowering can be spotted during the months of May and June for a short time.
Coming to the fauna, it is a pure bliss to witness a huge range of species of the same family existing together in the same place. Rare mammals like Mishmi takin, red goral, two species of musk deer, red panda, Asiatic black bear, tiger and Gongshan muntjac are among the major attractions of the sanctuary.
A flying squirrel, named Mishmi Hills Giant Flying Squirrel (Petaurista mishmiensis) is among the latest one to have been discovered and spotted at the edge of this sanctuary.
The avifauna of Dibang Wildlife Sanctuary is equally interesting with around 190 species of birds found in the region. Some of the most widely spotted birds are the rare Sclater’s Monal and Blyth’s tragopan, along with Japanese Bush Warbler, Temminck’s Tragopan, and Rufus Tailed Babbler to name the rarest ones.
The Eastern Himalayan ecosystem houses a number of frog species, almost 45 species of moths, butterflies and numerous insects. Reptiles too are found in abundance with Cobra, Krait, Indian Rock Python and Viper among the most common ones