BirdLife Data Zone

Uracus Marine

Current view: Data table and detailed info

IBA Justification

Year of most recent IBA criteria assessment: 2012

Populations of IBA trigger species

Species	Current IUCN Red List Category	Season	Year(s) of estimate	Population at site	IBA criteria triggered
Red-tailed Tropicbird Phaethon rubricauda	LC	breeding	1979-1988	200 breeding pairs	A4ii
Brown Noddy Anous stolidus	LC	breeding	1979-1988	6,000 breeding pairs	A4i
Sooty Tern Onychoprion fuscatus	LC	breeding	1979-1988	95,000 breeding pairs	A4i

Note: The current IUCN Red List category may differ from the category that was valid at the time of IBA criteria assessment.

For more information about the IBA criteria, please click here

IBA Conservation

IBA conservation status - summary
Year of assessment (most recent)	Threat (pressure)	Condition (state)	Action (response)
2012	medium	favourable	low
Was the whole site assessed?	yes	Condition (state) assessed by	habitat
Accuracy of information	poor

Threats to the site (pressure)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Climate change and severe weather	habitat shifting and alteration	likely in long term (beyond 4 years)	some of area/population (10-49%)	no or imperceptible deterioration	low
Pollution	garbage & solid waste	happening now	some of area/population (10-49%)	slow but significant deterioration	medium

Condition of the site (state), by habitat
Habitat	Habitat detail	Reference area (ha)	Actual area (ha)	Habitat quantity (% remaining)	Habitat quality (carrying capacity)	Result
Sea		0	0	good (> 90%)	good (> 90%)	favourable

Conservation actions taken at the site (response)
Protected-area designation	Management planning	Other conservation action	Result
Whole area of site (>90%) covered by appropriate conservation designation	No management planning has taken place	Very little or no conservation action taking place	low

For more information about IBA conservation status, please click here

IBA Protection

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Uracas Island	Preserve	209	protected area overlaps with site	0
Maug Island	Preserve	211	protected area overlaps with site	0
Marianas Trench Marine National Monument	Marine National Monument	24,660,830	protected area contains site	1,585,558
Marianas Trench	Marine National Monument	77,705	protected area overlaps with site	0
Marianas Trench	Marine National Monument	24,851,700	protected area contains site	0
Mariana Arc Of Fire	National Wildlife Refuge	22,257	protected area overlaps with site	0

Habitats

IUCN Habitat	Habitat detail	Extent (% of site)
Marine Neritic		-

For further information about the IUCN habitat classification, please click here.

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Uracus Marine. Downloaded from http://datazone.birdlife.org/site/factsheet/30985 on 06/06/2023.