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Aleutian Islands tundra
Makushin Volcano and Broad Bay Valley, Unalaska Island, Alaska (c) 2005 Abi Woodbridge
Source of bioregions data: Olson, D. M. and E. Dinerstein. The Global 200: Priority ecoregions for global conservation. (PDF file) Annals of the Missouri Botanical Garden 89:125-126.
Distinctiveness (1=highest,4=lowest): 1
This ecoregion supports enormous colonies of seabirds and a number of endemic plant species.*
Conservation Status (1=most endangered, 5=most
intact): 5 (relatively intact)
Although the islands are naturally fragmented, much of the habitat is intact. Feral animals are a threat to bird colonies and result in habitat degradation. Overfishing may be resulting in decline in seabird colonies*
Empetrum nigrum (crowberry)
alix spp. (willows)
Calamagrostis canadensis (bluejoint)
* Ricketts, T.H., E. Dinerstein, D.M. Olson, C.J. Loucks, et al. (1999) Terrestrial Ecoregions of North America: A Conservation Assessment. World Wildlife Fund - United States and Canada. Island Press, Washington, D.C. pp. 337-340.