SL005
Sierra Leone River Estuary


IBA Criteria

Year of most recent IBA criteria assessment: 2019

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Eurasian Oystercatcher Haematopus ostralegus NT winter 2014-2019 43 individuals B1a
Curlew Sandpiper Calidris ferruginea NT winter 2014-2019 41-155 individuals B1a
Hooded Vulture Necrosyrtes monachus CR resident 2014-2019 12 individuals A1

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2013 high not assessed low
Was the whole site covered? Yes State assessed by unset
Accuracy of information unknown

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Biological resource use fishing & harvesting aquatic resources - unintentional effects: subsistence/small scale happening now majority/most of area/population (50-90%) moderate to rapid deterioration high
Pollution domestic & urban waste water - type unknown/unrecorded happening now some of area/population (10-49%) slow but significant deterioration medium
Residential and commercial development housing and urban areas happening now some of area/population (10-49%) very rapid to severe deterioration high

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Little/none of site covered (<10%) A management plan exists but it is out of date or not comprehensive Some limited conservation initiatives are in place low
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Sierra Leone River Estuary Marine Protected Area 24,883 protected area overlaps with site 0
Sierra Leone River Estuary Ramsar Site, Wetland of International Importance 295,000 is identical to site 295,000

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) Coastal lagoons, Estuarine waters, Intertidal mud, sand or salt flats, Mangroves, Rivers & streams, Sand dunes and beaches - riverine -
Artificial/Terrestrial -
Forest -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
urban/industrial/transport -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Sierra Leone River Estuary. Downloaded from http://www.birdlife.org on 13/08/2022.