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Location Madagascar, Toliara
Central coordinates 44o 26.00' East  19o 45.00' South
IBA criteria A1, A2, A3, A4i
Area 264,100 ha
Altitude 0 - 200m
Year of IBA assessment 2001

Asity Madagascar (Affiliate)

Site description The site is located 35 km west of Belo-sur-Tsiribihina. The Tsiribihina delta includes the shoreline, sandbanks, lagoons, coastal mudflats, mangrove forest, saltflats, and areas of marsh and of dry land. The mangrove is 2–4 m high, and dominated by trees of Avicennia, Rhizophora, Ceriops, Bruguiera and Sonneratia. The saltflats often flood during the rainy season. The marshy areas are dominated by sedge Cyperus, reed Phragmites and non-native water-hyacinth Eichhornia, while the dry land is covered in savanna, with palms. The wetlands of the upper Tsiribihina river include the neighbouring lakes, and the Sahajilo and Mania rivers. Lake Kimanomby, west of Ambohibary village, is surrounded by dense, dry deciduous forest (Ambovondambo Forest to the west, Marotapia Forest to the east). There is no floating vegetation, but the margins are covered by Eichhornia. Lake Masoarivo, west of Masoarivo village, is small, shallow and red due to muddy sediments. Lake Hima has floating vegetation and is surrounded by fishermen’s camps. In the Tsiribihina valley, between the towns of Miandrivazo and Malaimbandy, there are several lakes and a vast area of marshes, dominated by sedge Cyperus and reed Phragmites.

Key Biodiversity See Box and Tables 2 and 3 for key species. Eighty-two species have been recorded, of which 22 are endemic to Madagascar. There are a few pairs of Haliaeetus vociferoides, including at least one in the upper valley of the Tsiribihina, and Anas bernieri breed in the mangroves. There are large congregations of Glareola ocularis on the banks of the Tsiribihina, and one of the most significant congregations of Thalassornis leuconotus insularis in Madagascar can be found in Masoarivo.

Non-bird biodiversity: Lemurs: Propithecus verreauxi deckeni (VU), P. verreauxi coronatus (CR). Reptile: Boa madagascariensis (VU).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Madagascar Teal Anas bernieri resident  1998  40 individuals  A1, A2, A3, A4i  Endangered 
Madagascar Pond-heron Ardeola idae breeding  1998  present  A1  Endangered 
Madagascar Heron Ardea humbloti resident  1998  50 individuals  A1, A2, A3, A4i  Endangered 
Madagascar Fish-eagle Haliaeetus vociferoides resident  1998  2-3 breeding pairs  A1, A2, A3  Critically Endangered 
Black-banded Plover Charadrius thoracicus resident  1998  46-47 individuals  A1, A2, A3, A4i  Vulnerable 
Terek Sandpiper Xenus cinereus non-breeding  1998  642 individuals  A4i  Least Concern 
Madagascar Pratincole Glareola ocularis non-breeding  1998  250 individuals  A4i  Vulnerable 
Lesser Crested Tern Thalasseus bengalensis non-breeding  1998  3,300 individuals  A4i  Least Concern 
Coua ruficeps resident  1998  present  A3  Not Recognised 
Coquerel's Coua Coua coquereli resident  1998  present  A3  Least Concern 
Sickle-billed Vanga Falculea palliata resident  1998  present  A3  Least Concern 
Sakalava Weaver Ploceus sakalava resident  1998  present  A3  Least Concern 

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
forestry -
other -
Notes: Cutting mangroves for construction wood; firewood collection.

References Safford (1993).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Wetlands of the Tsiribihina delta and upper Tsiribihina river. Downloaded from on 21/10/2016

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