News tagged with slopes
Genetic analysis shows tortoise species thought to be extinct for 150 years still lives
Dozens of giant tortoises of a species believed extinct for 150 years may still be living at a remote location in the Galapagos Islands, a genetic analysis conducted by Yale University researchers reveals.
Jan 09, 2012 |
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Vicious queen ants use mob tactics to reach the top
Leptothorax acervorum ants live all over the Northern hemisphere, but their reproductive strategy depends on habitat. Colonies are polygynous (more than one queen) in the forest of Siberia and central Europe, but functionally ...
Sep 30, 2011 |
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The fate of the big rain
Climate change affects people both globally and regionally. Pankaj Kumar, for example, who works at the Climate Service Center and the Max Planck Institute for Meteorology in Hamburg, is investigating the ...
Space & Earth / Earth Sciences
Sep 26, 2011 |
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Largest recorded tundra fire yields scientific surprises
In 2007 the largest recorded tundra fire in the circumpolar arctic released approximately as much carbon into the atmosphere as the tundra has stored in the previous 50 years, say scientists in the July 28 ...
Jul 27, 2011 |
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Contemporary climate change alters the pace and drivers of extinction
Local extinction rates of American pikas have increased nearly five-fold in the last 10 years, and the rate at which the climate-sensitive species is moving up mountain slopes has increased 11-fold, since the 20th century, ...
Apr 20, 2011 |
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Nutrient shift occurring in the Gulf of Maine could affect planktonic ecosystem
(PhysOrg.com) -- The Gulf of Maine waters are cooler, fresher and lower in nitrate than they were 30 years ago, causing a nutrient shift that has potential implications for the structure of the planktonic ecosystem, according ...
Aug 26, 2010 |
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Ski Runs Are Not Created Equal
(PhysOrg.com) -- Building a new ski run by bulldozing a mountainside rather than only cutting its shrubs and trees is far more damaging ecologically, yet might offer only a week's earlier start to the downhill season, says ...
Dec 21, 2009 |
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Final rocket launches, measures aurora movement
It's been a long wait, but it was worth it. The Black Brant XII sounding rocket with the CASCADES II experiment launched and flew through an active aurora display March 20 at 3:04 a.m. Alaska Daylight Time. The successful ...
Space & Earth / Space Exploration
Mar 24, 2009 |
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Mountain on Mars may answer big question
The Martian volcano Olympus Mons is about three times the height of Mount Everest, but it's the small details that Rice University professors Patrick McGovern and Julia Morgan are looking at in thinking about ...
Space & Earth / Space Exploration
Mar 04, 2009 |
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