Ilha de Bolama - Rio Grande de Buba

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
Pink-backed Pelican Pelecanus rufescens LC non-breeding 2017 961 individuals A4, B3a
Bar-tailed Godwit Limosa lapponica NT winter 2017 335 individuals B1a
Red Knot Calidris canutus NT winter 2017 96 individuals B1a
Curlew Sandpiper Calidris ferruginea NT winter 2017 96 individuals B1a
Common Gull-billed Tern Gelochelidon nilotica LC winter 2017 335 individuals B3a

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)
2001 low not assessed not assessed
Was the whole site covered? No State assessed by unset
Accuracy of information -

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification annual & perennial non-timber crops - small-holder farming happening now small area/few individuals (<10%) slow but significant deterioration low

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Not assessed Not assessed Not assessed not assessed
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Bolama - Bijagós UNESCO-MAB Biosphere Reserve 101,230 protected area overlaps with site 17,197
Bijagos Archipelago Biosphere Reserve Biosphere Reserve 1,027,897 protected area overlaps with site 0


IUCN Habitat Habitat detail Extent (% of site)
Forest -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
nature conservation and research -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Ilha de Bolama - Rio Grande de Buba. Downloaded from on 16/09/2021.