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Posted Thu Sep 17 2009: from
BBC:
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Warming Arctic 'halts migration' of sea goose http://apocadocs.com/s.pl?1253199394
Milder winters in the Arctic region have led to fewer Pacific brants, a species of sea goose, migrating southwards, say researchers.
A study by the US Geological Survey (USGS) found that as many as 30 percent of the birds were overwintering in Alaska rather than migrating to Mexico.
Until recently, more than 90 percent of the species were estimated to head south.
Writing in the journal Arctic, the team said the shift coincides with warming in the North Pacific and Bering Sea.
"This suggests that environmental conditions have changed for one of the northernmost wintering populations of geese," said lead author David Ward, a USGS researcher at the Alaska Science Center.
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[Read more stories about:
migration changes, arctic meltdown, climate impacts]
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