News tagged with sierra
2 more rare red foxes confirmed in Sierra Nevada
(AP) -- Federal wildlife biologists have confirmed sightings of two more Sierra Nevada red foxes that once were thought to be extinct.
Dec 04, 2010 |
4.6 / 5 (5) |
14
California's controlled fires boost biodiversity
In certain ecosystems, such as the mixed-conifer forests of the Sierra Nevada region of the western United States, fires are a natural and essential occurrence for maintaining forest health. However, for many decades, resource ...
Nov 23, 2010 |
not rated yet |
0
Carnivorous plants losing ground in the U.S.
"This is the easy part," says Barry Rice, half-sliding, half-falling down a ravine through a latticework of dead branches.
Sep 09, 2010 |
not rated yet |
0
Fox spit helped Forest Service confirm rare find
(PhysOrg.com) -- Three weeks ago, when U.S. Forest Service biologists thought they had found a supposedly extinct fox in the mountains of central California, they turned to UC Davis for confirmation.
Sep 03, 2010 |
4.6 / 5 (10) |
3
|
The Flight of Migrating Microbes
Every day, millions of microorganisms reach Spain from the Sahara Desert and the Sahel region - by flying.
Space & Earth / Earth Sciences
Jul 30, 2010 |
3.8 / 5 (6) |
0
|
Studies explore effects of war on former child soldiers
Despite international bans, more than 250,000 children fight as soldiers in 86 countries across the globe, almost half of them in Africa. Two new studies explored how these children adjust after they return to their homes. ...
Jul 15, 2010 |
5 / 5 (1) |
0
Acceptance, social support, and educational access provide safety net for former child soldiers
The Child Soldiers Global Report 20081 estimates that more than 300,000 children are engaged as soldiers around the globe, and more children are recruited every year in ongoing and new conflicts. Although a number of multinational ...
Medicine & Health / Psychology & Psychiatry
Jun 01, 2010 |
5 / 5 (1) |
0
New insights into how deadly amphibian disease spreads and kills
Scientists have unraveled the dynamics of a deadly disease that is wiping out amphibian populations across the globe.
May 10, 2010 |
5 / 5 (2) |
0
|
Giant Sequoias Yield Longest Fire History from Tree Rings
(PhysOrg.com) -- California's western Sierra Nevada had more frequent fires between 800 and 1300 than at any time in the past 3,000 years, according to a new study led by Thomas W. Swetnam, director of UA's ...
Mar 17, 2010 |
4.9 / 5 (9) |
22
|
Sierra Nevada yellow-legged frog's site fidelity may lead to further decline
USDA Forest Service researchers found that site fidelity, the tendency to return to previously occupied habitats, is strong in the Sierra Nevada yellow-legged frog. Research showed how the cumulative effects of a changing ...
Mar 11, 2010 |
not rated yet |
0
American pika are thriving in the Sierra Nevada and southwestern Great Basin
New research addressing climate change questions, a priority focus of the USDA Forest Service Pacific Southwest Research Station, documents that American pika in the Sierra Nevada and southwestern Great Basin are thriving ...
Mar 04, 2010 |
4.7 / 5 (3) |
1
Butterflies seek higher ground to escape warmer temperatures
A study of beleaguered butterflies in California provides some of the best clues yet as to how other animals may react to climate change, scientists say.
Feb 08, 2010 |
3 / 5 (2) |
0
Slope Construction Methods Impact Ecology Differently
Recent low temperatures and massive snow storms may have skiers ready for the slopes, but it's unlikely that a long run through fresh powder makes skiers question how the run was created.
Jan 14, 2010 |
5 / 5 (1) |
0
New research suggests Sierra Nevadas older than previously thought
The Sierra Nevada mountain range reached its present height 50 million years ago -- 30 million years earlier than geologists once believed, according to a new study.
Space & Earth / Earth Sciences
Jan 11, 2010 |
4.5 / 5 (2) |
3
Fossil Leaves Depict Warm, High Sierra Nevada Mountains in Ancient Past
(PhysOrg.com) -- A team led by Yale University geologists has reconstructed the climate and elevation of California’s northern Sierra Nevada mountains using organic materials derived from ancient leaves and ...
Space & Earth / Earth Sciences
Jan 06, 2010 |
4.5 / 5 (8) |
8
|
