http://www.lasvegassun.com/sunbin/stories/tech/2007/feb/06/020603242.htmlThe marbled murrelet, a threatened sea bird whose rare trait of nesting in old-growth forests made it a factor in logging battles in the U.S. Northwest, is also declining dramatically in Alaska and Canada, where most of the birds live, according to a U.S. government review.
The review of existing population surveys by the U.S. Geological Survey was requested by the U.S. Fish and Wildlife Service as the Bush administration considers whether to take the marbled murrelet off the threatened species list in Oregon, Washington and California, where protection for the old-growth trees it nests in have dramatically reduced logging on some national forests.
The first comprehensive look at population surveys in Alaska and British Columbia found an overall decline of about 70 percent over the last 25 years, dropping the estimated population to 270,000 birds in Alaska and 54,000 to 92,000 birds in British Columbia.
The review released Monday found that genetically, the birds divide into three groups: the western tip of the Aleutian Islands of Alaska; the rest of the Aleutians south through British Columbia, Washington, and Oregon into California; and central California.
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