Tag: "rivers" at biology news

Science picks-leads, feeds and story seeds (January 2003)

...continuously updated service on the Internet shows rivers "in the blues and greens" for the most part in the Eastern half of the country, indicating that streams are flowing at normal to above normal levels for this time of year, while lower streamflows linger in some parts of the West. Keep checking the m...

Stream erosion may contribute to decline of American eels

...evelop into the elvers that migrate up streams and rivers to transform first into yellow eels, then into the...the headwater tributaries of the James and Potomac rivers in Virginia, using radiotelemetry to track the daily and seasonal movements of individual eels along...

Rare Asian dolphin threatened by human activities

...s. The species' full range includes the coasts and rivers of southern Asia and Australasia; the most threatened populations of Irrawaddy dolphins are the freshwater lake and river populations. The researchers also recorded numerous gill nets--dangerous to dolphins--in areas previously known to be prime dolp...

Down by the river

...s, traversed the countryside collecting data along rivers and uplands in the southern Appalachian forests of North Carolina to compare the relationship between exotic and native species richness. Combining information from the Carolina Vegetation Survey database and the United States Department of Agricult...

Report to aid nation in managing freshwaters

...ned, and restored," explains Angermeier. "Western rivers in the United States are prime examples of how flow manipulation can lead to multiple damages to rivers and communities," says Angermeier. The lack of freshwater flows have contributed to the widespread l...

Science picks -- leads, feeds and story seeds (February 2003)

...ther. The problems in the Charles and other urban rivers come during rainstorms when contaminated storm wat...3-648-4242 Ice-Jam Cam Back Online Ice on Maine rivers brings spring flooding to low-lying areas. In 1936 and in 1991, ice jams caused significant flooding...

Early Mars: Warm enough to melt water?

...er trapped in underground and surface ice, causing rivers to flow and cutting the valleys that rival Arizona...mile deep, could not be made during the short time rivers would run after an impact. "The channel at the bottom of Nanedi Vallis is only about 100 feet acros...

Chimpanzees with little or no human contact found in remote African rainforest

...oualougo Triangle, nestled between two rivers in a Central African rain forest, is so remote that primate researchers who traveled 34 miles, mostly by foot, from the nearest village through dense forests and swampland to get there, ...

Underwater sensor system could protect reservoirs, drinking water

... insecticides, nicotine and other chemicals in the rivers of industrialized countries," says Dr. Craig A. Gr...yzing them back in the laboratory." Monitoring of rivers downstream from sewage treatment plants, large city water supplies, or the composition of a local po...

Sea Grant News & Notes for March 26, 2003

... important for efforts to control contamination of rivers and the ocean. CONTACT: Katharine Fields, Oregon Sea Grant Research Scientists, Oregon State University, Phone: 541-737-1837, Email: fieldk@orst.edu Record Low Water Levels Possible On Great Lakes Unusually low water levels in the Great Lakes fo...

Sunlight converts common anti-bacterial agent to dioxin

...at this conversion can happen in surface layers of rivers may not cause harm by itself, but it suggests that more serious reactions--leading to more toxic forms of dioxin--may also happen when triclosan enters the environment," said Arnold. "We want to determine if this is the case." As a first step in sort...

Solid management, natural resilience both key to sockeye success

...shing districts, each with its distinct network of rivers and lakes. Through the 1950s, '60s and mid '70s, when conditions tended to be cooler and drier because of the influence of the Pacific Decadal Oscillation, the Naknek and Kvichak network far exceeded the other two districts. The dominant contribution...

DFG to establish 14 new priority programmes

...What happens in aquatic ecosystems i.e. in lakes, rivers and seas when the climate changes? The Priority Programme "The Impact of Climate Variability on Aquatic Ecosystems: Match and Mismatch Resulting from Shifts in Seasonality and Distribution (AQUASHIFT)" addresses this question. The research in this p...

Dodging elephants, scorpions, mudslidesUF researcher tracks tigers

...illy park is dominated by huge, ancient trees with rivers and streams cutting through valleys. There, vegeta...ely spending hours wading through python-inhabited rivers and streams, avoiding mud slides and dodging other hazards. Kawanishi said she sometimes wondered if...

Nation on the verge of 'new era in modern river management'

...nebec and Neuse rivers. "Building dams and taming rivers has been part of American culture for much of the ...d other structural adjustments intended to restore rivers to a more natural, free-flowing condition," said Lowry. "As we enter the 21st century, river managem...

Portrait of a doomed Sea

...rded. Starting in the 1960s, the waters of the two rivers feeding the Sea the Amu Darya, seen south, and th...SSR, planners spoke casually of diverting Siberian rivers to save the Aral Sea. Today that certainly will not happen. Instead Central Asian governments have c...

Southern Appalachian Man and the Biosphere (SAMAB) 14th Annual Conference

...ing and restoring Southern Appalachian streams and rivers Mapping and GIS for planning and protection Include with your abstract the subtheme and type of presentation proposed, name, address, organization, phone, fax, email address, and audio and/or space requirements. Submissions should be made by Se...

Science picks: Leads, feeds and story seeds for August 2003

...unter drugs and household chemicals in streams and rivers across America. Now, USGS is trying to learn how l...a nontoxic red dye, as a proxy for the drugs, into rivers and following the dye downstream using high-tech instruments to detect even minute portions of the d...

Duke ecologist finds devastation, hope in Iraqi marshes

...erate for clean water," he reports. That's because rivers feeding the marsh areas are currently contaminated, and upstream utilities could take years to repair. "They're having all these problems with poor water, and they're surrounded by the answer," he said. That's because, with the proper knowledge, Iraq...

Weather extremes shed light on prairie's past and environment's future

...d sands, nutrient-rich soils and rocks. Wide flat rivers drained the melting ice finally about 11,500 years ago, at which time the tall grasses arose. Shorter domesticated grasses and farmers' fields of corn, wheat and soybeans have since replaced the tall grasses. To the north and south of the tall-grass...

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(Date:4/23/2014)... that proliferation of endogenous neural precursor cells cannot ... axons. From the perspective of neural plasticity, Dr. ... in China observed the effects of functional electrical ... and expression of basic fibroblast growth factor and ... the infarct side. The researchers found that functional ...
(Date:4/22/2014)... FDA-approved device has been shown to reduce seizures in ... percent. When coupled with an innovative electrode placement planning ... the complete elimination of seizures in nearly half of ... trials. , That,s good news for a large portion ... with epilepsy whose seizures can,t be controlled with medications ...
(Date:4/22/2014)... of all lung cancers are small cell lung ... resistance to chemotherapy. However, researchers at Virginia Commonwealth ... into the mechanisms leading to this resistance that ... work primarily by mediating B-cell lymphoma 2 (Bcl-2) ... death. Depending on their function, this family of ...
(Date:4/22/2014)... Working with mice and rabbits, Johns Hopkins scientists have ... and breakdown, successfully preventing the development of atherosclerosis, the ... number-one cause of death among humans. The condition develops ... renders them stiff, narrowed and hardened, greatly reducing their ... and the brain. , In a series of experiments, ...
(Date:4/22/2014)... care spending, a new RAND study concludes that U.S. ... companies and device makers to develop products that produce ... and their use, a new study suggests the study ... get created in the first place. The aim is ... loss of health as possible and to ensure that ...
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