email a friend
printable version
Location Mongolia, Bayan-Olgii,Uvs
Central coordinates 90o 32.00' East  49o 30.00' North
IBA criteria A1, A3, A4i
Area 73,700 ha
Altitude 1,435 - 1,863m
Year of IBA assessment 2009





Site description Achit Lake is a shallow, tectonic lake, located at the boundary of Uvs and Bayan-Olgii aimags. There are a variety of habitats from semi-desert habitat near the lake, through steppe habitat to meadows. The lake is frozen from November until May. The Tsagaan, Khatuugiin, Bukhmurun and Uliastai rivers and many other streams are tributaries of the lake. Parts of the site (specifically the channel between Achit Lake and the Khovd River and Dewel Island along the Khovd River) are designated as a nature reserve, and most of the site lies within Lake Achit and its surrounding wetlands Ramsar Site. Along the Bukhmurun River basin and delta, households from Nogoon and Bukhmurun practice nomadic animal husbandry during the winter and spring. In winter, people practice small-scale commercial fishing. This is a suitable site for recreation, sport hunting and ecotourism development. Threats to biodiversity include destruction of lakeshore vegetation by livestock, poorly managed tourism and uncontrolled commercial fishing. The water level of the lake has fallen in recent years due to drought.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Swan Goose Anser cygnoides 2004  present [units unknown]  A1  Vulnerable 
Ruddy Shelduck Tadorna ferruginea 2004  present [units unknown]  A4i  Least Concern 
Great Crested Grebe Podiceps cristatus 2004  present [units unknown]  A4i  Least Concern 
Lesser Kestrel Falco naumanni 2004  present [units unknown]  A1  Least Concern 
Pallas's Fish-eagle Haliaeetus leucoryphus 2004  present [units unknown]  A1  Vulnerable 
Great Bustard Otis tarda 2004  present [units unknown]  A1, A3  Vulnerable 
Houbara Bustard Chlamydotis undulata 2009  present [units unknown]  A1  Vulnerable 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Develyn aral Nature Reserve 10,300 unknown 0  
Lake Achit and its surrounding wetlands Wetlands of International Importance (Ramsar) 73,730 is identical to site 73,700  

Habitats

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

Other biodiversity Several nationally threatened fish species occur at the site, such as Lake Osman Oreoleuciscus angusticephalus, Small Osman O. humilis and Mongolian Grayling Thymallus revirostris. In the 1970s, Mongolian Beaver Castor fiber birulai was successfully introduced into the waters of Khovd River and now inhabits Dewel Island.

Protection status Partially protected by Deevel Aral Nature Reserve

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 (2014) Important Bird Areas factsheet: Achit Lake. Downloaded from http://www.birdlife.org on 17/04/2014

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