PW005
Rock Islands


IBA Criteria

Year of most recent IBA criteria assessment: 2008

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Micronesian Scrubfowl Megapodius laperouse NT resident 2005 present A1, A2
Palau Ground-dove Alopecoenas canifrons EN resident 2005 present A2
Micronesian Imperial-pigeon Ducula oceanica VU resident 2005 present A2
Palau Fruit-dove Ptilinopus pelewensis LC resident 2005 present A2
Palau Swiftlet Aerodramus pelewensis LC resident 2005 present A2
Palau Kingfisher Todiramphus pelewensis NT resident 2005 present A2
Micronesian Myzomela Myzomela rubratra LC resident 2005 present A2
Morningbird Pachycephala tenebrosa LC resident 2005 present A2
Palau Fantail Rhipidura lepida LC resident 2005 present A2
Palau Flycatcher Myiagra erythrops LC resident 2005 present A2
Palau Bush-warbler Horornis annae LC resident 2005 present A2
Giant White-eye Megazosterops palauensis NT resident 2005 present A2
Dusky White-eye Zosterops finschii LC resident 2005 present A2
Citrine White-eye Zosterops semperi LC resident 2005 present A2
Micronesian Starling Aplonis opaca LC resident 2005 present A2

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2018 high favourable high
Was the whole site covered? Yes State assessed by Habitat
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Biological resource use gathering terrestrial plants - intentional use (species being assessed is the target) happening now some of area/population (10-49%) moderate to rapid deterioration high
Human intrusions and disturbance recreational activities happening now some of area/population (10-49%) no or imperceptible deterioration low
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

Condition of habitat (state)
Habitat Habitat Detail Reference Area (ha) Actual Area (ha) % of habitat remaining % of carrying capacity (overall) Result
Forest 358 357 - good (> 90%) favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Whole area of site (>90%) covered by appropriate conservation designation A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity high
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Rock Islands Southern Lagoon World Heritage Site (natural or mixed) 100,200 protected area overlaps with site 4,912
Rock Islands Southern Lagoon Conservation Area 84,060 protected area contains site 4,912
Ngkisaol Sardines Sanctuary 113 protected area contained by site 0
Ngerumekoal Spawning Area 352 protected area overlaps with site 0
Ngerukewid Islands Wildlife Preserve 1,140 protected area contained by site 0

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Lowland evergreen rain forest (tropical), Beach and atoll forest -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
nature conservation and research -
tourism/recreation -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Rock Islands. Downloaded from http://www.birdlife.org on 18/08/2022.