Tag: "mountains" at biology news
European common frog found to use novel mating strategy
...d during spring and summer months east of the Ural mountains
in Russia, and occurs over a large range of altitude, from sea level to about 2,600 meters (8,500 feet). While studying high altitude populations in an attempt to understand how they adjust to short breeding seasons and survive dry, freezing temperat...
Virginia Tech researchers to release findings on Smith River Project
...ilpott Dam." The dam and river are located in the mountains
northwest of Martinsville, which is near the Virginia-North Carolina line. The river is home to a wild population of brown trout. The U.S. Army Corps of Engineers has been invited to make a short presentation on the status of its Philpott 216 Study...
Where the sage-grouse roam
...nts from the south and trees moving downslope from mountains
in the talk, "Climate change implications for sagebrush ecosystems." Nielson will discuss the research he and colleagues James Lenihan (USFS) and Dominique Bachelet (Oregon State University) completed on frost patterns and the possible impacts of cl...
Changes to insect-seeking calls of horseshoe bats may drive new species formation
...example, geologic activity changed an area so that mountains
rose and split a region populated by a species of bat, the bat populations on either side of a mountain would no longer be able to breed together. Their genetic information, including changes that lead to physical or behavioral adaptations to the de...
Lowly weeds may hold promise for curing host of common health woes
...eet, and steamy jungles give way to cloud-shrouded mountains
medicinal plants are the primary source of health care, Stepp said. "They don't go to the doctor when they're sick because they don't have a doctor," he said. "They treat themselves, and they treat themselves very effectively with the plants that a...
Continents played key role in collapse and regeneration of Earth's early greenhouse, geologists say
...ide to make carbonic acid, which weathered jutting mountains
of newly formed continental crust. Carbonic acid d...lowed down - there was less carbonic acid to erode mountains
and the mountains
were becoming lower. But volcanoes were still spewing into the atmosphere large am...
Dramatic decline of California native frog linked to introduced trout in mountain lakes
...cies, exists in the San Gabriel and San Bernardino mountains
of southern California.) Non-native trout dumped into the high-Sierra lakes have been suggested as one cause of the decline, but many biologists dismissed this as improbable, since the trout - rainbow, golden and brown - were introduced more than 100...
UN study shows environmental consequences from ongoing boom in personal computer sales
...re discarded for newer machines, add up to growing mountains
of garbage and increasingly serious contributions to resource depletion, environmental pollution and climate change. "Today it is hard to imagine life without one of these indispensable 21st century tools," said Eric Williams, the UNU scientist who l...
Global warming to squeeze western mountains dry by 2050
...n United States by up to 70 percent in the coastal mountains
over the next 50 years, according to a new climate...an half an inch a day, pushing the snowline in the mountains
up from 3,000 feet to higher than 4,000 feet. Where we now have snow in the mountains
into April, "a...
Bighorn sheep threatened by climate change
...rt bighorn sheep known to have roamed California's mountains
over the past century, 30 are now extinct. In thei...eep were more likely to be lost in lower elevation mountains
where there were higher average temperatures and less precipitation. The authors examined population...
USGS February science picks
.... The snowpack that accumulates each year in the mountains
across the country are a vital part of the hydrologic cycle, according to USGS hydrologists. The snows that melt off each spring provide essential runoff to streams and reservoirs and provide recharge to the nation's ground-water reservoirs as the g...
Mars on Earth?
...s blocked from moisture on both sides by the Andes mountains
and by coastal mountains. At 3,000 feet, the Atacama is 15 million years old and 50 times more arid than California's Death Valley. The scientists studied the driest part of the Atacama, an area in what is called a "double rain shadow." During the pa...
Golfing toward a greener environment
RELEASE EMBARGOED UNTIL NOV. 10, 2003MADISON - As mountains
of scrap tires continue to rise above the landscape, researchers at the University of Wisconsin-Madison have found an environmentally friendly use for them: grind them up and place the rubber bits beneath golf course greens. In a paper accepted for ...
Isotopes from feathers reveal bird migration
...t of North America," said Duxbury. As you get near mountains
there is also a noticeable elevation effect that reflects how changes in elevation also cause precipitation cycles. The hydrogen isotope signature of animals is essentially the isotope signature found in the water and food they eat. Furthermore, th...
How many fish in the sea? Census of Marine Life launches first report
...y mid-ocean ridges that affect circulation just as mountains
affect weather on land. Some 20,000 species live in mid-water; arthropod crustaceans and chordate fish predominate, but strange floating jellyfish and molluscs are also important. Several hundred thousand species exist in the bottom water and many ma...
Trawlers threaten ocean's biodiversity
...extinction by trawlers targeting undersea volcanic mountains
called seamounts. In the past two years, scientists have found that seamounts are home to an astonishing diversity of species, with 40 per cent endemic to each mountain. Thousands of new species have been discovered in recent years- 600 on just five...
Audience pick: Older violin, sweeter music?
...llowing that 300-year-old maple from the Himalayan mountains
in China had been preparedsome six months ago. With the violin fully assembled in mid-July, Nagyvary began vibrating the violin - mostly mechanically - to condition it for playing. A violin has to be played in tune -- every position and every note wi...
Forest preservation work turns to Carolina hemlock
... CAMCORE researchers will explore the western N.C. mountains
to collect seed of Carolina hemlock throughout th...at kind of farseeing work that's being done in the mountains
of western North Carolina, where global lessons have found a backyard application. Especially useful...
Hydrothermal vent systems could have persisted millions of years, incubated life
...in a 60-mile radius of Lost City are three similar mountains
and there are other, potential sites along thousands of miles of ridges in the mid-Atlantic, Indian Ocean and Arctic. Beyond Earth, peridotite the mantle material that reacts with seawater during serpentinization is abundant on all the terrestria...
Scientists with Hawaii ocean mixing experiment
...o its rough topography, including large underwater mountains
and valleys. Such areas are sometimes referred to as the "stirring rods" of the oceans. Prior to the HOME project, areas such as the Hawaiian Ridge were hypothesized to be a major energy pathway for ocean mixing turbulence. Traveling across the Pacif...
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