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 |
|---|---|---|---|---|---|
| Micronesian Scrubfowl Megapodius laperouse | NT | resident | - | present | A1, A2 |
| White-throated Ground-dove Pampusana xanthonura | NT | resident | - | present | A1, A2 |
| Sooty Tern Onychoprion fuscatus | LC | non-breeding | 1979-1988 | 37,655 individuals | A4i |
| Grey-backed Tern Onychoprion lunatus | LC | breeding | 1979-1988 | 1,200 breeding pairs | A4i |
| Micronesian Myzomela Myzomela rubratra | LC | resident | - | present | A2 |
| Micronesian Starling Aplonis opaca | LC | resident | - | present | A2 |
| A4iii Species group - waterbirds | n/a | unknown | 1979-1988 | 40,273 individuals | A4iii |
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2012).
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment (most recent) | State (condition) | Pressure (threat) | Response (action) |
| 2007 | not assessed | high | not assessed |
| Was the whole site assessed? | State assessed by | Accuracy of information | |
| no | unset | - | |
| Pressure (threats to the trigger species and/or their habitats) | |||||
|---|---|---|---|---|---|
| Threat level 1 | Threat level 2 | Timing | Scope | Severity | Result |
| Geological events | volcanic eruptions | likely in long term (beyond 4 years) | whole area/population (>90%) | very rapid to severe deterioration | high |
| Invasive and other problematic species and genes | invasive non-native/alien species/diseases - named species | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected-area designation | Management planning | Other conservation action | Result |
| Not assessed | Not assessed | Not assessed | not assessed |
| Protected area (PA) | PA designation | PA area (ha) | Relationship of PA with IBA | Overlap of PA with IBA (ha) |
|---|---|---|---|---|
| Guguan Island | Preserve | 424 | protected area overlaps with site | 0 |
| Guguan Island | Preserve | 412 | is identical to site | 412 |
Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Guguan Island. Downloaded from
http://datazone.birdlife.org/site/factsheet/guguan-island-iba-northern-mariana-islands-(to-usa) on 28/11/2023.
