|Central coordinates||35o 10.00' East 3o 40.00' South|
|IBA criteria||A1, A4i, A4iii|
|Year of IBA assessment||2001|
Site description Lake Eyasi is the most significant water-body in the Eyasi and Yaida internal catchment basin, which also includes Wembere steppe (site TZ043) and Lake Kitangire (TZ026). The lake lies in a trough between the Mbulu Highlands to the east and south-east and the Ngorongoro Highlands to the north and north-west. It is 80 km long with an average width of 14.5 km and is fed mainly from the south-west, where the Sibiti river flows in from Lake Kitangire. However, only during wet years is this a significant inflow of water. The shallowness of the lake, the low amounts of direct precipitation (around 600 mm per annum) and high rates of evaporation ensure the water is highly alkaline. During years of low rainfall the lake is reduced to a dry soda crust. The escarpment wall to the north-west rises some 800 m, virtually from the shore of the lake, and assists in protecting the western shoreline. To the north-east numerous farms have expanded in recent years exploiting the seasonal streams to grow vegetables.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Greater Flamingo Phoenicopterus roseus||winter||1995||50,000 individuals||-||A4i||Least Concern|
|Lesser Flamingo Phoeniconaias minor||winter||1995||700,000 individuals||-||A1, A4i||Near Threatened|
|Yellow-billed Stork Mycteria ibis||winter||1995||11,072 individuals||-||A4i||Least Concern|
|African Spoonbill Platalea alba||winter||1995||2,850 individuals||-||A4i||Least Concern|
|Great White Pelican Pelecanus onocrotalus||winter||1995||15,831 individuals||-||A4i||Least Concern|
|Pied Avocet Recurvirostra avosetta||winter||1995||2,002 individuals||-||A4i||Least Concern|
|Grey-headed Gull Larus cirrocephalus||winter||1995||3,954 individuals||-||A4i||Least Concern|
|Fischer's Lovebird Agapornis fischeri||resident||2000||present||-||A1||Near Threatened|
|A4iii Species group - waterbirds||winter||1995||500,000-999,999 individuals||unknown||A4iii|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Artificial - terrestrial||11%|
|Land-use||Extent (% of site)|
Other biodiversity None known to BirdLife International.
References Baker (1993, 1997), Elliot (1983), Rose and Scott (1997).
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Recommended citation BirdLife International (2014) Important Bird Areas factsheet: Lake Eyasi. Downloaded from http://www.birdlife.org on 30/07/2014
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