UM001
Navassa


IBA Criteria

Year of most recent IBA criteria assessment: 2007

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
White-crowned Pigeon Patagioenas leucocephala NT resident 2006 150-300 individuals A1
Red-footed Booby Sula sula LC resident 2006 5,000-7,000 individuals A4ii

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)
2008 medium unfavourable low
Was the whole site covered? Yes State assessed by Habitat
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
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

Condition of habitat (state)
Habitat Habitat Detail Reference Area (ha) Actual Area (ha) % of habitat remaining % of carrying capacity (overall) Result
Coastline Rocky areas 0 0 moderate (70-90%) moderate (70-90%) unfavourable
Shrubland 0 0 moderate (70-90%) moderate (70-90%) unfavourable

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Fregata magnificens Magnificent Frigatebird 175 175 individuals 100 favourable
Sula sula Red-footed Booby 6000 6000 individuals 100 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Whole area of site (>90%) covered by appropriate conservation designation No management plan exists but the management planning process has begun 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)
Navassa Island National Wildlife Refuge 147,366 protected area overlaps with site 0
Navassa Island National Wildlife Refuge 147,690 protected area contained by site 147,690

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Lowland evergreen rain forest (tropical) -
Shrubland -
Marine Neritic -
Marine Coastal/Supratidal -
For further information about the habitat classification please click here.

Land use

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


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Navassa. Downloaded from http://www.birdlife.org on 05/12/2022.