Data Zone
The site was identified as internationally important for bird conservation in 2012 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 |
|---|---|---|---|---|
| White-throated Ground Dove Pampusana xanthonura | NT | resident (-) | present | A1, A2 |
| Micronesian Myzomela Myzomela rubratra | LC | resident (-) | present | A2 |
| Rufous Fantail Rhipidura rufifrons | LC | resident (-) | present | A2 |
| Yap Monarch Metabolus godeffroyi | NT | resident (-) | present | A1, A2 |
| Yap Olive White-eye Zosterops oleagineus | NT | resident (-) | present | A1, A2 |
| Yap Plain White-eye Zosterops hypolais | NT | resident (-) | present | A1, 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 2012. The most recent assessment (2012) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2012 | very poor | medium | very low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | population | medium | |
| State (condition of the trigger species' populations) | |||||
|---|---|---|---|---|---|
| Species | Actual vs Reference (units) | % remaining | Result | ||
| White-tailed Tropicbird Phaethon lepturus | 12 / 4 (birds) | 100 | good | ||
| White-throated Ground Dove Pampusana xanthonura | 0 / 2 (birds) | 0 | not assessed | ||
| Brown Noddy Anous stolidus | 80 / 15 (birds) | 100 | good | ||
| Black Noddy Anous minutus | 0 / 3 (birds) | 0 | not assessed | ||
| Gygis alba | 17,013 / 17,013 (birds) | 100 | not assessed | ||
| Micronesian Myzomela Myzomela rubratra | 240 / 1,098 (birds) | 22 | very poor | ||
| Edolisoma tenuirostre | 0 / 3 (birds) | 0 | very poor | ||
| Rhipidura rufifrons | 52 / 250 (birds) | 21 | very poor | ||
| Yap Monarch Metabolus godeffroyi | 160 / 306 (birds) | 53 | poor | ||
| Yap Olive White-eye Zosterops oleagineus | 32 / 232 (birds) | 14 | very poor | ||
| Yap Plain White-eye Zosterops hypolais | 418 / 1,027 (birds) | 41 | poor | ||
| Micronesian Starling Aplonis opaca | 124 / 471 (birds) | 27 | very poor | ||
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Agricultural expansion and intensification | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Climate change and severe weather | likely in long term (>4 years) | whole of population/area (>90%) | slow decline (1–10% over 3 generations) | medium |
| Invasive and other problematic species and genes | happening now | whole of population/area (>90%) | no or slight decline (<1% over 3 generations) | low |
| Biological resource use | happening now | some of population/area (10–49%) | no or slight decline (<1% over 3 generations) | low |
| Pollution | happening now | few individuals/small area (<10%) | no or slight decline (<1% over 3 generations) | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Little/none of area covered (<10%) | No management planning has taken place | Some limited conservation initiatives are in place | very low |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Yap Island (Micronesia, Federated States of). Downloaded from
https://datazone.birdlife.org/site/factsheet/yap-island-iba-micronesia-federated-states-of on 24/12/2024.