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 03/10/2023.