email a friend
printable version
Location Kazakhstan, Akmola region
Central coordinates 70o 17.00' East  50o 21.00' North
IBA criteria A1, A4i, A4iii
Area 8,582 ha
Altitude 328 - 334m
Year of IBA assessment 2005

Association for the Conservation of Biodiversity of Kazakhstan (Affiliate)



Site description The site consists of a dual system of waterbodies situated 95 km south-west of Astana and approximately 45 km to the south of Korgalzhyn village. It represents the terminal fragment of the distinct group of lakes running south-west in a long chain parallel to the course of the Nura river and about 30 km distant from it. The salty lakes form part of the eastern periphery of the major Tengiz lake system. Karasor and Tuzaschy lakes are the first lakes in the long chain of waterbodyies running north-east from the area lying to the south of Tengiz lake. The landscape of the whole area is a very gently rolling plain with herbage-grass associations corresponding to areas intermediate between proper steppe and semi-desert. The lakes have a high salinity and only feeble reed growth. A considerable portion of the depressions containing the lakes contain salt-marshes or alkaline plots.

Key Biodiversity Given its open nature and abundance of shallows, the lakes are ideal for intermediary staging of most common waterfowl species and many species of north-breeding waders. In autumn the most numerous ducks are Anas strepera, Anas crecca, Anas platyrhynchos, Anas penelope, Anas clypeata and Netta rufina.

Non-bird biodiversity: Due to the high salinity of the lakes reed growth is patchy and thin. On the outskirts of the lake system, as well as in the immediate proximity of the shores, a few plots of steppic landscape remain, severely deteriorated in most places by intensive grazing, but still featuring the remnants of rich-herbage-motley-turf-grass associations.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Northern Pintail Anas acuta passage  2002-2005  3,500-15,000 individuals  good  A4i  Least Concern 
Ruddy Shelduck Tadorna ferruginea passage  2005  1,500 individuals  medium  A4i  Least Concern 
Common Shelduck Tadorna tadorna passage  2005  545-835 individuals  good  A4i  Least Concern 
Eurasian Wigeon Mareca penelope passage  2002-2005  2,500-20,000 individuals  good  A4i  Least Concern 
Mallard Anas platyrhynchos passage  2002-2005  12,000-22,000 individuals  good  A4i  Least Concern 
Northern Shoveler Spatula clypeata passage  2002-2005  6,000-50,000 individuals  good  A4i  Least Concern 
Common Goldeneye Bucephala clangula passage  2005  300 individuals  good  A4i  Least Concern 
Black-tailed Godwit Limosa limosa passage  2000-2008  257-1,430 individuals  medium  A1, A4i  Near Threatened 
Ruff Calidris pugnax passage  2000  39,500 individuals  good  A4i  Least Concern 
Red-necked Phalarope Phalaropus lobatus passage  2000  43,600 individuals  good  A4i  Least Concern 
A4iii Species group - waterbirds passage  2000-2005  35,000-104,000 individuals  medium  A4iii   

IBA Monitoring

2005 medium unfavourable not assessed
  Habitat
Medium - based upon reliable but incomplete / partially representative data

Agricultural expansion and intensification 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
Climate change and severe weather drought happening now some of area/population (10-49%) slow but significant deterioration medium
Over-exploitation, persecution and control of species hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now small area/few individuals (<10%) slow but significant deterioration low
Over-exploitation, persecution and control of species hunting & collecting terrestrial animals - unintentional effects (species is not the target) happening now small area/few individuals (<10%) no or imperceptible deterioration low
Residential and commercial development housing and urban areas happening now small area/few individuals (<10%) no or imperceptible deterioration low

Desert   0 0 good (> 90%) moderate (70-90%) near favourable
Grassland   0 0 moderate (70-90%) moderate (70-90%) unfavourable
Shrubland   0 0 good (> 90%) good (> 90%) favourable
Wetlands (inland)   0 0 moderate (70-90%) good (> 90%) near favourable

Habitats

IUCN habitat Habitat detail Extent (% of site)
Shrubland Low bushes  minor
Grassland Steppes & dry calcareous  15%
Desert Desert & semi-desert - clay  5%
Wetlands (inland) Standing brackish & salt water  80%

Land use

Land-use Extent (% of site)
rangeland/pastureland 15%
hunting 20%

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: Tuzashchy and Karasor Lakes. Downloaded from http://www.birdlife.org on 21/12/2014

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