|Central coordinates||91o 40.48' East 26o 7.00' North|
|IBA criteria||A1, A4iii|
|Year of IBA assessment||2004|
Site description Deepor Beel Bird Sanctuary, southwest of Guwahati city, is located in Kamrup (metropolitan) district, on the southern bank of the Brahmaputra river. The sanctuary is a permanent freshwater lake with abundant aquatic vegetation. Deepor is one of the largest of many such lakes or ‘beels’ in lower Assam. A Ramsar site, the Deepor beel covers an area of about 900 ha. At maximum flooding, it is c. 4 m deep, while during the dry season, the depth drops to about 1 m. The main sources of water of this lake are the Basistha and Kalamoni rivers, and local monsoon run-off between May and September. The Beel drains into the Brahmaputra river, located about 5 km away. About half of the Beel dries out during the winter and the exposed shores are converted into paddy fields. The southern side of the lake is contiguous with Rani Reserve Forest. The climate is humid and tropical monsoon, with a prolonged monsoon season from May to September, and a relatively cool, winter. A large variety of aquatic flora of tropical wetland are found in Deepor Beel and its adjoining areas. On one side, this IBA is surrounded by forest, with Terminalia belerica, Tectona grandis (plantation), Ficus bengalensis, and Bombax malabaricum as dominant tree species. The Giant Water Lily Euryale ferox is of considerable botanical and economic importance. Dominant aquatic plants include Eichhornia crassipes, Pistia stratiotes, Ottelia alismoides and Lemna minor. Most of the surrounding areas are under rice cultivation.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Baer's Pochard Aythya baeri||winter||2004||present||-||A1||Critically Endangered|
|Lesser Adjutant Leptoptilos javanicus||resident||2004||present||-||A1||Vulnerable|
|Greater Adjutant Leptoptilos dubius||breeding||2004||present||-||A1||Endangered|
|Spot-billed Pelican Pelecanus philippensis||resident||2004||present||-||A1||Near Threatened|
|Pallas's Fish-eagle Haliaeetus leucoryphus||resident||2004||present||-||A1||Vulnerable|
|White-rumped Vulture Gyps bengalensis||non-breeding||2004||present||-||A1||Critically Endangered|
|Greater Spotted Eagle Clanga clanga||winter||2004||present||-||A1||Vulnerable|
|Slender-billed Vulture Gyps tenuirostris||non-breeding||2004||present||-||A1||Critically Endangered|
|Spoon-billed Sandpiper Calidris pygmaea||winter||2004||present||-||A1||Critically Endangered|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Deepor Beel||Wetlands of International Importance (Ramsar)||4,000||unknown||0|
|Diparbeel||Sanctuary||414||is identical to site||414|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Artificial - terrestrial||-|
|Land-use||Extent (% of site)|
|nature conservation and research||-|
|Notes: Nature Conservation|
|Notes: Water management|
Acknowledgements Key contributors: Anwaruddin Choudhury, Kulojyoti Lahkar and Prasanta Saikia.
Barman, R., P. Saikia, H. J. Singha, B. K. Talukdar and P. C. Bhattacharjee (1995) Study on the population trend of waterbirds at Deepar Beel Wildlife Sanctuary, Assam. Pavo 33 (1&2): 25-40.
BirdLife International (2001) Threatened Birds of Asia: The BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.
Choudhury, A. U. (2000) The Birds of Assam. Gibbon Books and WWFIndia, NE Regional Office, Guwahati.
Saikia, P. and Bhattacharjee, P. C. (1987) A study of the avifauna of Deepor Beel, a potential bird sanctuary of Assam. Gauhati University, Assam. Unpublished report.
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Recommended citation BirdLife International (2014) Important Bird Areas factsheet: Deepor Beel Bird Sanctuary. Downloaded from http://www.birdlife.org on 01/08/2014
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