Data Zone
The site was identified as important in 2012 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species'):| Species | Current IUCN Red List Category | Season | Year(s) | Population estimate at site | IBA criteria met |
|---|---|---|---|---|---|
| Red-tailed Tropicbird Phaethon rubricauda | LC | breeding | 1973-2007 | 6,500 individuals | A4ii |
| Brown Noddy Anous stolidus | LC | breeding | 1973-2007 | 17,000 individuals | A4i |
| Sooty Tern Onychoprion fuscatus | LC | breeding | 1973-2007 | 360,000 individuals | A4i |
| A4iii Species group - waterbirds | n/a | breeding | 1973-2007 | 380,004 individuals | A4iii |
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2012).
| Protected area (PA) | PA designation | PA area (ha) | Relationship of PA with IBA | Overlap of PA with IBA (ha) |
|---|---|---|---|---|
| Pacific Remote Islands | Marine National Monument | 127,786,000 | protected area contains site | 0 |
| Johnston Island | National Wildlife Refuge | 220,278 | protected area contains site | 286 |
| Johnston Atoll | National Wildlife Refuge | 229,373 | protected area overlaps with site | 0 |
Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Johnston Atoll. Downloaded from
http://datazone.birdlife.org/site/factsheet/johnston-atoll-iba-united-states-minor-outlying-islands-(to-usa) on 28/11/2023.
