|Central coordinates||43o 48.00' East 24o 7.00' South|
|IBA criteria||A1, A2, A3, A4i|
|Altitude||38 - 114m|
|Year of IBA assessment||2001|
Site description This site lies on the Mahafaly karst plateau, 180 km south-west of Betioky-South and 75 km south of Toliara. It consists of a lake and a bushland area on a sandy plain, 20 km long and 3 km wide on average, c.7 km inland of the Mozambique Channel, and a large area of stunted spiny forest on the calcareous plateau inland. Lake Tsimanampetsotse is shallow and has a milky colour, being the only soda-saturated lake in Madagascar. A cliff, c.100 m high, rises 1–2 km from the eastern bank of the lake. Swallow-holes on the plateau hold small lakes, from which small freshwater streams issue after rainfall. Near Lake Tsimanampetsotse, in some areas, the water is more brackish. Torrents of less brackish water flow through underground caves. Trees between the lake and the cliff can be up to 12 m high, but the vegetation of the western part of the site, between the lake and the sea, is lower, being covered in xerophilous bushland (up to 2.2 m high), and characterized by species of Cassia, Ficus, Pluchea, Erythroxylum, Cedrelopsis, Delonix, Acacia, Albizia, Maytenus, Euphorbia and Berchemia. Some Casuarina have been planted on the eastern bank of the lake.
Key Biodiversity See Box and Tables 2 and 3 for key species. Eighty-eight species are known from this site, of which 35 are endemic to Madagascar. Tsimanampetsotse and Baly Bay are the only protected areas that hold Charadrius thoracicus. Anas bernieri has been recorded once at the lake.
Non-bird biodiversity: Lemurs: Lemur catta (VU), Propithecus verreauxi verreauxi (VU), Carnivore: Galidictis grandidieri (EN; only found in this reserve). Reptiles: Pyxis arachnoides (VU), Geochelone radiata (VU). Fish: Typhleotris madagascariensis (VU; a blind fish of underground caves).
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Lesser Flamingo Phoeniconaias minor||non-breeding||1998||present||-||A1||Near Threatened|
|Madagascar Sparrowhawk Accipiter madagascariensis||resident||1998||present||-||A1||Near Threatened|
|Black-banded Plover Charadrius thoracicus||resident||1998||55 individuals||-||A1, A2, A3, A4i||Vulnerable|
|Coua ruficeps||resident||1998||present||-||A3||Not Recognised|
|Verreaux's Coua Coua verreauxi||resident||1998||present||-||A1, A2, A3||Near Threatened|
|Giant Coua Coua gigas||resident||1998||present||-||A3||Least Concern|
|Running Coua Coua cursor||resident||1998||present||-||A2, A3||Least Concern|
|Lafresnaye's Vanga Xenopirostris xenopirostris||resident||1998||present||-||A2, A3||Least Concern|
|Sickle-billed Vanga Falculea palliata||resident||1998||present||-||A3||Least Concern|
|Archbold's Newtonia Newtonia archboldi||resident||1998||present||-||A2, A3||Least Concern|
|Lantz's Brush-warbler Nesillas lantzii||resident||1998||present||-||A3||Least Concern|
|Thamnornis Warbler Thamnornis chloropetoides||resident||1998||present||-||A2, A3||Least Concern|
|Littoral Rock-thrush Monticola imerinus||resident||1998||present||-||A2, A3||Least Concern|
|Sakalava Weaver Ploceus sakalava||resident||1998||present||-||A3||Least Concern|
|2001||medium||not assessed||not assessed|
|Good - based on reliable and complete / representative data|
|Agricultural expansion and intensification||livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming||happening now||small area/few individuals (<10%)||slow but significant deterioration||low|
|Over-exploitation, persecution and control of species||hunting & collecting terrestrial animals - intentional use (species being assessed is the target)||happening now||some of area/population (10-49%)||slow but significant deterioration||medium|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Lac Tsimanampetsotsa||Wetlands of International Importance (Ramsar)||45,604||protected area contains site||43,000|
|Tsimanampetsotsa||National Park||45,818||protected area contains site||43,000|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Land-use||Extent (% of site)|
|nature conservation and research||-|
|Notes: Collection of honey.|
References Andriamampianina and Peyrieras (1972), Jenkins (1987), Langrand (1995), Milon (1948b), Nicoll and Langrand (1989), Petit (1935), Rand (1936), Salomonsen (1934a), World Wide Fund for Nature–Madagascar (1997), Wozencraft (1986).
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Recommended citation BirdLife International (2015) Important Bird Areas factsheet: Tsimanampetsotsa National Park. Downloaded from http://www.birdlife.org on 19/04/2015
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