19 Aug 2011:
Species Moving Rapidly
In Response to Climate Change, Study Says
A new study finds that animal and plant species are responding to the effects of climate change at a rate two to three times faster than previously believed
. Researchers at the University of York in the UK
University of York
found that in more than 2,000 instances, species are changing their habitats to adapt to warming temperatures. On average, they found that species are moving toward higher elevations at 12.2 meters (40 feet) per decade and toward the poles at 17.6 kilometers (11 miles) per decade. “These changes are equivalent to animals and plants shifting away from the Equator at around 20 [centimeters] per hour, for every hour of the day, for every day of the year,” said Chris Thomas, a professor of conservation biology and lead author of the study, published in the journal Science
. In the UK, for instance, the comma butterfly has moved 220 kilometers north from central England to Edinburgh in just two decades, while the Cetti’s warbler, a small songbird, has moved 150 kilometers during the same period. In addition, the study found that species have been moving fastest in regions where temperatures have warmed the most.
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Photographer Peter Essick documents the swift changes wrought by global warming in Antarctica, Greenland, and other far-flung places. View the gallery.
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The Warriors of Qiugang
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Top Image: aerial view of Iceland
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In a Yale Environment 360
video, photographer Pete McBride documents how increasing water demands have transformed the Colorado River, the lifeblood of the arid Southwest. Watch the video.