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Location Guinea, Kindia
Central coordinates 15o 0.00' West  10o 51.00' North
IBA criteria A1, A4i, A4iii
Area 85,000 ha
Altitude 0 - 5m
Year of IBA assessment 2001

Site description This coastal site lies west of the town of Boké on the international border with Guinea-Bissau, which forms its western boundary. It consists of an estuarine complex comprising two main islands, Ile Katarak (the largest) and Ile Kapken, and two smaller ones, Niémé Souri and Foré Souri, at the mouth of the River Kogon. Much of the area is covered in mangroves as well as fresh and brackish water marshes, rice-fields and extensive intertidal mudflats (2,300 ha). Secondary forest and wooded savanna occurs on the highest points (5 m) of the islands. To the south-west of Ile Katarak lies a sandy islet known as Pani Bankhi, which is covered with halophytic vegetation.

Key Biodiversity See Box for key species. Counts of between 5,000–10,000 Phoenicopterus minor have been made. The breeding colonies of Platalea alba and Sterna caspia, as well as of Threskiornis aethiopica (75 pairs) and Larus cirrocephalus are located on Pani Bankhi. In addition, Ardea goliath, Ciconia episcopus, Scopus umbretta, Haliaetus vocifer and Balearica pavonina are suspected to breed. The mudflats surrounding the islands, particularly those adjacent to the village of Katchek on Ile Katarak, hold more than 20,000 wintering waders and it is likely that further counts would reveal that more species exceed 1% thresholds.

Non-bird biodiversity: Among mammals, Trichechus senegalensis (VU) is found in the mangroves, and the dolphin Sousa teuszii (DD) has been recorded from the channel between Ile Katarak and Pani Bankhi.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Greater Flamingo Phoenicopterus roseus winter  1988  2,000 individuals  A4i  Least Concern 
Lesser Flamingo Phoeniconaias minor winter  5,000-10,000 individuals  A1  Near Threatened 
African Spoonbill Platalea alba breeding  1988  75 breeding pairs  A4i  Least Concern 
Caspian Tern Hydroprogne caspia breeding  1988  350 breeding pairs  A4i  Least Concern 
A4iii Species group - waterbirds unknown  20,000 individuals  unknown  A4iii   

IBA Monitoring

2001 medium not assessed not assessed
Good - based on reliable and complete / representative data

Biological resource use 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 areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Iles Tristao Wetlands of International Importance (Ramsar) 85,000 is identical to site 85,000  


IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial   15%
Unknown   2%
Forest   82%

Land use

Land-use Extent (% of site)
agriculture -
nature conservation and research -

References Altenburg and van der Kamp (1989, 1991a,b).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Iles Tristao. Downloaded from on 21/10/2016

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