Uracus Marine


Country/territory: Northern Mariana Islands (to USA)

IBA Criteria met: A4i, A4ii, A4iii (2012)
For more information about IBA criteria please click here

Area: 1,585,558 ha

Protection status:

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2012 medium favourable low
For more information about IBA monitoring please click here


Site description
The site boundary is based upon a seaward extension of 70 km around Uracus to encompass the foraging range of IBA threshold numbers of waterbirds based upon a 1988 population estimate of 95,000 breeding pairs, Brown Noddy based upon a 1988 population estimate of 6,000 breeding pairs and Red-tailed Tropicbird based upon a 1988 population estimate of 200 breeding pairs from Reichel, J. and Glass, P. (1991) Checklist of the birds of the Mariana Islands. 'Elapiao, 5(1): 3-11.

Key biodiversity
The site boundary is based upon a seaward extension of 70 km around Uracus to encompass the foraging range of IBA threshold numbers of waterbirds based upon a 1988 population estimate of 95,000 breeding pairs, Brown Noddy based upon a 1988 population estimate of 6,000 breeding pairs and Red-tailed Tropicbird based upon a 1988 population estimate of 200 breeding pairs from Reichel, J. and Glass, P. (1991) Checklist of the birds of the Mariana Islands. 'Elapiao, 5(1): 3-11.


Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Uracus Marine. Downloaded from http://www.birdlife.org on 25/02/2020.