|Central coordinates||64o 6.68' East 39o 7.52' North|
|IBA criteria||A1, A3, A4i, A4iii|
|Altitude||183 - 267m|
|Year of IBA assessment||2006|
Site description Dengizkul lake is situated 75 km south-south west from Buhara town near the border with Turkmenistan. It is surrounded by mainly sandy desert with large sand dunes and bushes of saxaul and acacia – the northern part of the Sundukli sands. Hilly sands are most typical for the boundary region with Turkmenistan. The lake is situated in a natural low-lying landscape. The water is strongly salty and supplied by a collector-drainage channel. In former times it was the final reservoir of the Zarafshan river. The IBA consists of the open water area and coastal strip 500 metres wide.
Key Biodiversity The list of birds of Dengizkul Lake was compiled from personal records and the literature and includes 133 species. 53 species breed, 9 are resident, 14 wintering and 57 migrants Lanovenko, 2001). In August 2001 a brief survey of the coastal northern and northeastern part of the lake was carried out (Lanovenko, 2001) and this provided the information on the biome-restricted species used for this account. Winter counts in 2000 and 2003-2005 recorded 44 species, with the number of wintering birds ranging from 19,277 to 286,634 birds. The dominant species also changed between counts. These figures are comparable to those of winter aerial counts 1987, 1986 and 1990-91 when numbers ranged from 21,297 to 504,000 birds (Shernazarov, Nazarov, 1991; Asian Waterfowl Census 1990, Asian Waterfowl Census 1991). Nevertheless the total number of birds always exceeded 20,000. Important wintering species are Pelecanus crispus, Marmaronetta angustirostris, Aythya nyroca and Oxyura leucocephala.
Non-bird biodiversity: Mammals include badger and jackal and there are colonies of gerbils and jerboas. Reptiles include Teratoscincus scincus, Varanus griseus (IUCN Red List species) and Phrynocephalus interscapularis. Amphibians include Bufo viridis. There are many different spiders here including karakurt and phalanx. Fish include Stizostedion lucioperca and Cyprinus carpio. There are numerous small sandhoppers which provide plentiful food for fish and birds. Vegetative associations consist of coastal thickets of reed and reed mace. On the shore there are several associations of desert vegetation and a poorly developed tugai association.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Mallard Anas platyrhynchos||winter||2000-2005||187-10,670 adults only||good||A4i||Least Concern|
|Marbled Teal Marmaronetta angustirostris||winter||2000-2005||4-120 adults only||medium||A1, A4i||Vulnerable|
|Red-crested Pochard Netta rufina||winter||2000-2005||18-4,550 adults only||good||A4i||Least Concern|
|Common Pochard Aythya ferina||winter||2000-2005||250-29,100 adults only||good||A4i||Vulnerable|
|Ferruginous Duck Aythya nyroca||winter||2000-2005||8-245 adults only||medium||A1||Near Threatened|
|Smew Mergellus albellus||winter||2000-2005||18-350 adults only||good||A4i||Least Concern|
|White-headed Duck Oxyura leucocephala||winter||2000-2005||185-5,135 adults only||good||A1, A4i||Endangered|
|Dalmatian Pelican Pelecanus crispus||winter||2000-2005||1-35 adults only||good||A1||Vulnerable|
|Common Coot Fulica atra||winter||2000-2005||1,820-208,036 adults only||good||A4i||Least Concern|
|Egyptian Nightjar Caprimulgus aegyptius||breeding||2001||2 adults only||medium||A3||Least Concern|
|Brown-necked Raven Corvus ruficollis||resident||2001||1 adults only||medium||A3||Least Concern|
|Parus bokharensis||resident||2001||6 adults only||medium||A3||Not Recognised|
|Streaked Scrub-warbler Scotocerca inquieta||breeding||2001||1 adults only||medium||A3||Least Concern|
|Sykes's Warbler Hippolais rama||breeding||1997-1998||5 adults only||medium||A3||Least Concern|
|Desert Warbler Sylvia nana||breeding||2001||1 adults only||medium||A3||Least Concern|
|A4iii Species group - waterbirds||winter||2000-2005||19,277-286,634 individuals||medium||A4iii|
|Good - based on reliable and complete / representative data|
|Agriculture and aquaculture||livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming||happening now||some of area/population (10-49%)||slow but significant deterioration||medium|
|Biological resource use||fishing & harvesting aquatic resources - unintentional effects: large scale||happening now||some of area/population (10-49%)||slow but significant deterioration||medium|
|Biological resource use||fishing & harvesting aquatic resources - unintentional effects: subsistence/small scale||happening now||some of area/population (10-49%)||slow but significant deterioration||medium|
|Energy production and mining||mining and quarrying||happening now||majority/most of area/population (50-90%)||moderate to rapid deterioration||high|
|Energy production and mining||oil and gas drilling||happening now||majority/most of area/population (50-90%)||moderate to rapid deterioration||high|
|Human intrusions and disturbance||war, civil unrest and military exercises||happening now||majority/most of area/population (50-90%)||moderate to rapid deterioration||high|
|Human intrusions and disturbance||work and other activities||happening now||majority/most of area/population (50-90%)||moderate to rapid deterioration||high|
|Whole area of site (>90%) covered by appropriate conservation designation||No management planning has taken place||Very little or no conservation action taking place||low|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Dengizkulskiy||Wildlife Refuge||50,000||protected area contains site||49,658|
|Lake Dengizkul||Wetlands of International Importance (Ramsar)||31,300||protected area contained by site||31,300|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Artificial - terrestrial||8%|
|Land-use||Extent (% of site)|
|nature conservation and research||100%|
Protection status Dengizkul Ornithological Reserve was created by a Decision of the Council of Ministers of the USSR №530 in 1973. Validity of this was prolonged by a decision of the Buhara Regional Executive Committee №157/11 from 26.06.90. In October 2001 Dengizkul lake was included in the list of wetlands of international importance (Ramsar site No.1108).
References Atadjanov, A., Filatov, A., Lanovenko, Y., Zagrebin, S., Chernogaev, E., Khodjaev, J. Aerial Survey of Wetlands in Uzbekistan (winter 2000). Report of the project RSGF "Protection of Uzbekistan's Wetlands and their Waterfowl". Part 3. Tashkent, June 2001. IWC National data base (2003-2005) Wetland International IWC Data Base (2003-2004) Busuttil S. An ornithological survey of globally threatened birds. INTERIM REPORT. UZBEKISTAN REPORT. January and April 2000 // OSME, Sandgrouse (engl).
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Recommended citation BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Dengizkul Lake. Downloaded from http://www.birdlife.org on 03/05/2016
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