Data Zone
The site was identified as internationally important for bird conservation in 2007 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Micronesian Scrubfowl Megapodius laperouse | NT | resident (-) | present | A1, A2 |
| White-throated Ground Dove Pampusana xanthonura | NT | resident (-) | present | A1, A2 |
| Micronesian Myzomela Myzomela rubratra | LC | resident (-) | present | A2 |
| Micronesian Starling Aplonis opaca | LC | resident (-) | present | A2 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2007) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2007 | not assessed | high | not assessed |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | unset | - | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Invasive and other problematic species and genes | happening now | most of population/area (50–90%) | slow decline (1–10% over 3 generations) | high |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Not assessed | Not assessed | Not assessed | not assessed |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| - | Asuncion Island | Preserve (V) | 9 |
| 1985 | Asuncion Island | Preserve (Ia) | 74 |
| 2009 | Marianas Trench | Marine National Monument (V) | 100 |
| 2009 | Marianas Trench | Marine National Monument (V) | 100 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Asuncion Island (Northern Mariana Islands (to USA)). Downloaded from
https://datazone.birdlife.org/site/factsheet/asuncion-island-iba-northern-mariana-islands-(to-usa) on 24/12/2024.