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Location Uzbekistan, Karakalpakstan autonomous region
Central coordinates 56o 18.45' East  42o 35.49' North
IBA criteria A1, A3
Area 5,288 ha
Altitude 46 - 78m
Year of IBA assessment 2008

Uzbekistan Society for the Protection of Birds (Affiliate)



Site description The IBA is located in the south of the Karakalpak Ustyurt in the Asske-Audan depression. In the past the southern parts of the Assake-Audan and Sarykamish Depressions formed a common lake basin through which the Amudarya flowed and where the Uzboy river began flowing into the Kaspiy. Currently this is rather deep depression is difficult to access and has well-marked precipices in some places. There are several artesian wells with brackish water in the depression. There are dense thickets of reed and tamarisk around the wells covering about 2.5 km2. The site includes part of the depression and the adjoining highlands in the north and north-west with Haloxylon forests.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Saker Falcon Falco cherrug breeding  2007  2-4 individuals  good  A1  Endangered 
Chlamydotis undulata breeding  2007  2-4 individuals  good  A3  Not Recognised 
Pallas's Sandgrouse Syrrhaptes paradoxus breeding  2007  10-15 individuals  good  A3  Least Concern 
Turkestan Ground-jay Podoces panderi breeding  1937-2007  3-6 individuals  medium  A3  Least Concern 
Brown-necked Raven Corvus ruficollis breeding  2007  2-4 individuals  medium  A3  Least Concern 
Desert Warbler Sylvia nana breeding  2007  20-40 individuals  good  A3  Least Concern 
Desert Finch Rhodopechys obsoletus breeding  2007  10-50 individuals  good  A3  Least Concern 
Red-headed Bunting Emberiza bruniceps breeding  2007  15-30 individuals  good  A3  Least Concern 

Habitats

IUCN habitat Habitat detail Extent (% of site)
Shrubland Low bushes  5%
Desert Desert & semi-desert - clay; Desert & semi-desert - salty  85%
Rocky areas Inland cliffs  10%

Land use

Land-use Extent (% of site)
energy production and mining 5%

Other biodiversity The mammal fauna is very similar to that of the Ustyurt in general. Typical species include Ovis vignei (UzRDB) which was present in 1956; and Gazella subgutturosa (UzRDB) and Saiga tatarica (RL). Paraemichinus hupomelas (UzRDB) and Testudo horsfieldi (RL) occur according to the literature. Flora: Malococarpus crithmifolius and Euphortia sclerocyathium are included in the National Red Book.

Protection status There are no Protected Areas.

References Data of the UZ IBA Uz Expedition, October 2007. Report.

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Northern part of the Assake-Audan depression. Downloaded from http://www.birdlife.org on 17/09/2014

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