|Location||Burkina Faso, Sourou|
|Central coordinates||3o 28.00' West 12o 50.00' North|
|Year of IBA assessment||2001|
Site description The site is situated in the north-west of country, close to the international frontier with Mali in the northern Sudan sector, to the west of the town of Tougan. The Sourou river formerly flowed due south from Mali to join the Mouhoun river, west of the town of Sourou, except at the height of the wet season when there was a reverse flow from the Mouhoun into the Sourou. Since the early 1980s, however, its 55-km-long passage through Burkina Faso to the Mouhoun has been permanently flooded by the construction of a dam close to the confluence of the two rivers. The artificial lake varies from several hundred metres to 4 km wide and provides a vast area of shallows covered with perennial grasses such as Echinocloa pyramidalis, E. stagnina and Vossia cuspidata. The western banks of the lake are lined with, in effect, one vast Acacia thicket which, with increasing distance from the lake, merges into northern Sudan savanna in the south and sub-Sahelian grassland in the north. These areas, stretching west and north into Mali, are one of few remaining tracts of wilderness left in Burkina.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|A4iii Species group - waterbirds||unknown||-||20,000 individuals||unknown||A4iii|
Local conservation groups The local conservation group below is working to support conservation at this IBA.
|Sourou Valley Site Support Group||2000|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Artificial landscapes (terrestrial)||86%|
|Artificial landscapes (aquatic)||Other artificial wetlands||major|
|Land-use||Extent (% of site)|
Other biodiversity A few individuals of most native species of larger mammals are said to be present, including the occasional Loxodonta africana (EN), ranging up from protected areas along the Mouhoun river to the south. In addition, Panthera leo (VU) and most of Burkina’s wild ungulates still have relict populations in the area. There is a large population of Hippopotamus amphibius in the lake.
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Lake Sourou. Downloaded from http://www.birdlife.org on 12/12/2013
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