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') at the site:| Species | Red List1 | Season | Year(s) | 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 |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2012) may differ.
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 unfavourable | medium | negligible |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | population | medium | |
| State (condition of the trigger species' populations) | |||||
|---|---|---|---|---|---|
| Species | Reference | Actual | Units | % remaining | Result |
| White-tailed Tropicbird Phaethon lepturus | 4 | 12 | individuals | 100 | favourable |
| White-throated Ground Dove Pampusana xanthonura | 2 | 0 | individuals | 0 | not assessed |
| Brown Noddy Anous stolidus | 15 | 80 | individuals | 100 | favourable |
| Black Noddy Anous minutus | 3 | 0 | individuals | 0 | not assessed |
| Gygis alba | 17,013 | 17,013 | individuals | 100 | not assessed |
| Micronesian Myzomela Myzomela rubratra | 1,098 | 240 | individuals | 22 | very unfavourable |
| Edolisoma tenuirostre | 3 | 0 | individuals | 0 | very unfavourable |
| Rhipidura rufifrons | 250 | 52 | individuals | 21 | very unfavourable |
| Yap Monarch Metabolus godeffroyi | 306 | 160 | individuals | 53 | unfavourable |
| Yap Olive White-eye Zosterops oleagineus | 232 | 32 | individuals | 14 | very unfavourable |
| Yap Plain White-eye Zosterops hypolais | 1,027 | 418 | individuals | 41 | unfavourable |
| Micronesian Starling Aplonis opaca | 471 | 124 | individuals | 27 | very unfavourable |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Climate change and severe weather | likely in long term (beyond 4 years) | whole area/population (>90%) | slow but significant deterioration | medium |
| Agricultural expansion and intensification | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Invasive and other problematic species and genes | happening now | whole area/population (>90%) | no or imperceptible deterioration | low |
| Pollution | happening now | small area/few individuals (<10%) | no or imperceptible deterioration | low |
| Biological resource use | happening now | some of area/population (10-49%) | no or imperceptible deterioration | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected areas | Management plan | Other action | Result |
| Little/none of site covered (<10%) | No management planning has taken place | Some limited conservation initiatives are in place | negligible |
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 23/11/2024.