Key Biodiversity Areas

Dankunku wetlands (6356)
Gambia, Africa

Site overview


KBA status: confirmed
Global KBA criteria: D1a
Year of last assessment: 2001
National site name: Dankunku wetlands
Central coordinates: Latitude: 13.6000, Longitude: -15.3667
System: marine, terrestrial
Elevation (m): 10 to 10
Area of KBA (km2): 81.10253
Protected area coverage (%): 0.02
KBA classification: Global
Legacy site: Yes

Site details


Site description: Although lying almost opposite site GM009, on the other side of the river, these wetlands are of a quite different character. They extend for approximately 30 km, up to 3 km wide, on the eastern, ‘inner’ side of a large meander of the Gambia River, where they run parallel to it. Their character is uniform throughout. Next to the river is a narrow belt of Rhizophora mangrove, behind which is a 1 km wide strip of Phragmites karka, forming the largest continuous area of reedbed in the country, and beyond this in turn are seasonal freshwater and brackish marshes, which are a mosaic of shallow pools and low-growing Gramineae and Cyperaceae in the rains. The southern boundary of the site is Sofaniyama Bolon, a tributary of the Gambia River which extends for 100 km into southern Senegal. It is fringed with Rhizophora mangrove forest along its length in The Gambia.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance that meets the thresholds for at least one criterion described in the Global Standard for the Identification of KBAs.
Additional biodiversity: See Box for key species. The area is little studied. The mouth of Sofaniyama Bolon is known for non-breeding gatherings of Pelecanus rufescens, Mycteria ibis and Balearica pavonina. The latter may also breed locally. Trees in the nearby villages hold breeding colonies for Leptopilos crumeniferus, which feed on the site. Brief visits to a small fraction of the site during the rains in 1996 suggested that the marshes hold large numbers of waders, herons, egrets and storks. Motacilla flava and Riparia riparia have been recorded in large numbers and the reedbeds may be seasonally important roosts. Non-bird biodiversity: None known to BirdLife International.

Habitats


Land use: agriculture
IUCN HabitatCoverage %Habitat detail
Artificial - Terrestrial63
Forest4
Shrubland11
Wetlands(Inland)20

Threats


Summary of threats to biodiversity at KBA: There is rice cultivation in some areas, including irrigated cultivation in cleared areas of Phragmites karka opposite Dankunku, but most of the site is undisturbed, making this, other than mangrove forest, the most extensive semi-natural wetland in the country. The site is on the list of the DPWM’s Sites of High Ecological Value. No conservation measures have been taken. There are few immediate threats to the site, although the expansion of rice cultivation could damage the reedbeds and marshes.