Species Shifting Habitats Faster to North Seeking Cooler Places
Because of global warming, plants and animals move from their natural habitats to the north at a speed faster, according to a survey of over 2000 species.
The survey, an analysis of four different species decade throughout Europe, North and South America and Malaysia, found that organizations that experience the greatest change in temperatures go faster.
An Adelie penguin colony located on a rocky outcrop above melting ice pools gather outside the Ross Sea ice shelf in Antarctica in January 27.Scientists have warned Wednesday that the Antarctic ice was in danger of melting due to global warming and warned the sea level could rise six meters within a generation. Ministers and senior officials from 24 countries gathered on the vast frozen wastes of Antarctica, issued an impassioned plea to save the world's last true wilderness. "/>The study said the average rate of displacement is three times faster than expected for these species migrate towards the poles.On the other hand, for organisms that migrate above the mountains, the average displacement is about twice as fast as made.
Species are moving north in the northern hemisphere and south in the southern hemisphere on an average of about 16 km or 17 km per decade, according to the study, published in the journal Science.
"These changes are equivalent to the animals and plants from the equator to about 20 cm per hour for each hour of the day for each day of the year.What happened during the last 40 years and should continue for at least the rest of the century, "said Professor Chris Thomas lead author on the paper and a professor of conservation biology at the University of York
The scientists found that the rate of movement is greater in regions that experienced the greatest warming. Explain the "movement of species," said Thomas, not that plants and animals are walking north. It is the breeding of individuals to a species' range is the northernmost successful, compared to the same species' wide in the south.
North American Bog Animals - News
Jeremy Kerr, a professor of biology at the University of Ottawa in Canada studied a species called bog copper, a "beautiful little butterfly that appears to practically be on an expressway to the North Pole." Kerr found that in the past decade,
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Climate Relicts: Seeking Clues On How Some Species Survive by ...
Grows in a wide strip of the continent. It beech in central Spain that are strange. To grow, beech require moist soil, the relatively cold climate - a climate that is almost impossible to find in central Spain. "They are restricted to cool moist valleys in a warm, dry mountain," says Alistair Jump, an ecologist at the University of Stirling, who is studying the trees. The trees, located about 200 miles south from the edge of the main range of European beech, did not get to the center of Spain recently, their seeds carried on the shoe of some German tourists.Evidence of both fossils and genes shows that beech trees have lived in parts of Spain since the last ice age. At the time, most of Europe was to be buried under the ice or hard as a climate of beech to survive. But after the ice age habitats suitable open, and Beech expanded their sanctuaries in the south to north. , Jump and Arndt Hampe of the Doñana Biological Station in Spain to the point that most species found mainly in temperate regions left behind relics of the climate. They also note that global warming is pushing the species into new ranges.As some of these species retirement, they can leave the relics of the climate of their own. And remains of the climate of today may hold clues about how to protect species of global warming driven to extinction. Remains of climate are often in places that are colder than their environment a few degrees. Mountains offer plenty of real estate cold, but they have no monopoly of the relics of the climate. Peatlands have, for example, like the rocky debris surrounding the ice-filled caves. "You have a stream of cold air coming out of ice caves," said Sauter. "It's like if you leave the refrigerator door open."In northern Iowa, the ground around the caves filled with ice is to be home for plants, snails and mites are usually found in boreal forests of Canada. It is not enough for the remains of the climate away from warmer climates.
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