email a friend
printable version
Location India, Arunachal Pradesh
Central coordinates 96o 5.00' East  27o 42.00' North
IBA criteria A1
Area 58,000 ha
Altitude 100 - 400m
Year of IBA assessment 2004

Bombay Natural History Society

Site description This IBA consists of two large and contiguous reserve forests, Tengapani (44,400 ha) and Manabum (136 ha) in eastern Arunachal Pradesh. The site covers flat plains of the Lohit river as well as low to medium hills, which are part of the Dapha Bum Range of Mishmi Hills. A large number of perennial streams are found in this IBA. Most of this IBA forms part of Eastern Himalaya Endemic Bird Area with a small area resembling the Assam Plains (Stattersfield et al. 1998). Tall wet savanna grassland covers small areas, often along the bends of streams. However, Tropical Wet Evergreen Forest, although degraded at places, forms a major part of the site (A. U. Choudhury pers. comm. 2003).

Key Biodiversity 

AVIFAUNA: Though it is a large forested area rich in biodiversity, this IBA was overlooked in many of the earlier surveys (Singh 1995, 1999). The White-winged Duck Cairina scutulata has been reported from both the reserve forests (Choudhury 1996). Some of the unexplored areas of this IBA are potential sites for the threatened Masked Finfoot Heliopais personata and White-bellied Heron Ardea insignis. Another threatened species, the Purple Wood or Pale-capped Pigeon Columba punicea was also reported but needs confirmation. Occurrence of five species of hornbills including the threatened Rufous-necked Aceros nipalensis (mainly seen in winter) and Near Threatened Great Pied Buceros bicornis and Brown Anorrhinus tickelli is noteworthy (A. U. Choudhury pers. comm. 2003).

OTHER KEY FAUNA: Among the major mammals are the Tiger Panthera tigris, Asian Elephant Elephas maximus, Gaur Bos frontalis and a large population of Hoolock Gibbon Hylobates hoolock (Choudhury 2003).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
White-winged Duck Asarcornis scutulata resident  2004  present  A1  Endangered 
White-bellied Heron Ardea insignis resident  2004  present  A1  Critically Endangered 
Masked Finfoot Heliopais personatus resident  2004  unknown  A1  Endangered 
Pale-capped Pigeon Columba punicea resident  2004  present  A1  Vulnerable 
Rufous-necked Hornbill Aceros nipalensis resident  2004  present  A1  Vulnerable 


IUCN habitat Habitat detail Extent (% of site)
Forest   -
Wetlands (inland)   -

Acknowledgements Key contributor: Anwaruddin Choudhury.


Choudhury, A. U. (1996) Survey of the White-winged Wood Duck and Bengal Florican in Tinsukia district and adjacent areas of Assam and Arunachal Pradesh. The Rhino Foundation for Nature in NE India. Guwahati. Pp. 82.

Choudhury, A. U. (2002) Distribution and Conservation of the Gaur Bos gaurus in the Indian Subcontinent. Mammal Review 32(3): 199-226.

Choudhury, A. U. (2003) The mammals of Arunachal Pradesh. Regency Publications, New Delhi.

Singh, P. (1995) Recent bird records from Arunachal Pradesh, India. Forktail 10: 65-104.

Singh, P. (1999) Bird survey in selected localities of Arunachal Pradesh, India. Wildlife Institute of India, Dehra Dun. Pp. 92.

Stattersfield, A. J., Crosby, M. J., Long, A. J. and Wege, D. C. (1998) Endemic Bird Areas of the World: Priorities for Biodiversity Conservation. BirdLife Conservation Series No. 7. BirdLife International, Cambridge, U.K.

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Manabum and Tengapani Reserve Forests. Downloaded from on 24/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife