|Central coordinates||95o 22.50' East 27o 28.50' North|
|Altitude||119 - 122m|
|Year of IBA assessment||2004|
Site description Bherjan (105 ha), Borajan (493 ha) and Podumoni (176 ha) are tiny pockets of lowland tropical forest present in Tinsukia district, Assam. These forest areas have the distinction of having the highest biomass of primates anywhere in the Indian subcontinent (Choudhury 1995a, 1995b). The three areas are disjunct and separated by tea gardens and human habitations. These are entirely on the flat plains of the Brahmputra Valley, so they lie in the Endemic Bird Area called Assam Plains by BirdLife International (undated). Older alluvium of the River Brahmaputra covers all three areas. The compact and brownish soil is suitable for tea plantation, hence, all the forests have tea gardens on the fringe areas. There are small, scattered marshes, with swamps, covered with dense growth of grass and Alpinia herb. The natural vegetation of all these areas is Tropical Wet Evergreen ‘rainforest’ type. Bherjan is almost entirely covered with trees with closed canopy. The original vegetation has been replaced by a fairly old mixed plantation dominated by the deciduous species Lagerstroemia parviflora and Terminalia myriocarpa. The Podumoni part is mostly in a degraded state due to large-scale felling. The canopy has been very badly broken up. Only a few mature trees of Artocarpus, Bombax, Lagerstroemia and Mesua species can be seen. Bojaran is a pocket of excellent rainforest, dominated by Dipterocarpus macrocarpus. Except for Teak, all the species as in the other two forest pocket are found. Bamboo species are found in all areas. Stenochleana palustre, an edible fern, grows abundantly all over, especially in the openings and clearings.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Lesser Adjutant Leptoptilos javanicus||resident||2004||present||-||A1||Vulnerable|
|White-rumped Vulture Gyps bengalensis||non-breeding||2004||present||-||A1||Critically Endangered|
|Slender-billed Vulture Gyps tenuirostris||non-breeding||2004||present||-||A1||Critically Endangered|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Bherjan-Borajan-Podumoni||Sanctuary||722||protected area contained by site||722|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Land-use||Extent (% of site)|
|nature conservation and research||-|
|Notes: Nature Conservation|
Acknowledgements Key contributor: Anwaruddin Choudhury.
BirdLife International (undated) Important Bird Areas (IBAs) of Asia: Project Briefing Book. Pp. 103 Unpublished.
Choudhury, A. U. (1995a) Wildlife Survey in Bherjan, Borajan and Podumoni Reserved Forests of Tinsukia District, Assam, with a proposal for a Wildlife Sanctuary. The Rhino Foundation for Nature in NE India, Guwahati, India.
Choudhury, A. U. (1995b) Primates in Bherjan, Borajan and Podumoni Reserved Forests of Assam, India. Asian Primates 5 (3&4): 10-11.
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Recommended citation BirdLife International (2014) Important Bird Areas factsheet: Bherjan-Borajan-Podumoni Wildlife Sanctuary. Downloaded from http://www.birdlife.org on 21/08/2014
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