Tag: "wetlands" at biology news
Incentives for US farmers reduce water waste
...farmers and others should be eliminated. Forests, wetlands
and natural resources should be protected to enhance the conservation of water. Water pollution needs to be controlled to protect public health, agriculture and the environment. Other authors of the BioScience report were students in Pimentel's gra...
Scientists find acid rain an unlikely ally in the battle against a greenhouse gas
...he surface. Despite substantial oxidation, natural wetlands
remain the single largest source of methane emissi...in wetlands. "The maximum emission of methane from wetlands
occurs when conditions are warm and wet, while the biggest reduction in methane emissions is achieve...
Look at past sea-level rise points to troubling future
...arrier islands and river delta headlands, the vast wetlands
that are deposited by rivers when they empty into the sea. He began studying the geography of the U.S. Gulf Coast about 15 years ago. Four of his students -- Alex Simms, Kristy Milliken, Jessie Maddox and Patrick Taha -- are presenting new research N...
Sex versus survival: A tradeoff at geographical range limits
...sing on Decodon verticillatus, a dominant shrub in wetlands
throughout eastern North America, a series of studies led by Dr. Eckert show that populations switch from being sexual to totally asexual across the northern limit of the species' geographical range. This switch leads to northern populations becoming...
A puzzle posed by black-headed ducks yields to persistent biologists
... the black-headed duck involving several different wetlands
in Argentina, observations of almost 2,000 potential host nests, and several different experiments that involved manipulating the contents of nests. It was only in the fourth and final year of the study that the importance of intraspecific brood para...
A complex agricultural society in Uruguay's La Plata basin, 4,800-4,200 years ago
...n extensive mound complex, called Los Ajos, in the wetlands
of southeastern Uruguay. They found evidence of a ...ea. Iriarte extracted a sediment core from nearby wetlands
to reconstruct what the environment was like when this farming society arose. Combined analyses of p...
Marsh-dwelling mole gives new meaning to the term 'fast food'
...such small-prey animals tend to be abundant in the wetlands
and marshes that the star-nose inhabits, Catania says. Specialization for small-prey handling can also explain the mole's unusual teeth. "The star-nose has the strangest teeth," Catania says. Its incisors are very small compared to other moles and ar...
Bayou blues: Working to save the US from the worst potential oil, gas and fishing crisis
...Foundation for Education. "The loss of Louisiana's wetlands
is the single most catastrophic environmental disa...a Grant Program. "The consequences of loosing the wetlands
are far reaching and affect everyone. Of course there are biological and ecological effects, but th...
Scientists urge outcome-based, watershedwide approach to restore the Chesapeake
... stem the loss of headwater streams and freshwater wetlands
and restore non-tidal waters," Palmer says. Palmer is working on the large-scale National River Restoration Science Synthesis Project, to inventory and evaluate ongoing stream and river restoration projects in the Chesapeake watershed. She analyze...
Restoring the marshes of Eden
...coming out of Iraq, the country's almost-decimated wetlands
have begun rebounding under the efforts of local r...hdad to see how the plant communities in the Ahwar wetlands
of southern Iraq changed under Saddam Hussein's rule. Dr. Al-Hilli conducted the only large-scale st...
Scientists find both damage and promise for renewal in devastated Iraqi marshlands
...tream. In 2003 and 2004, an international group of wetlands
experts led by Duke University ecologist Curtis Ri...fied as the site of the fabled Garden of Eden, the wetlands
have also served as a refuge for the self-sustaining Marsh Arabs. That culture has long fished and r...
2005's highest engineering honors awarded
... their products. Projects range from constructing wetlands
to mitigate farmland runoff, to designing environmental controls for an art museum, to making toys for preschoolers with special needs. EPICS was founded in 1995 at the School of Electrical and Computer Engineering at Purdue by LEAH H. JAMIESON ...
Wetlands clean water and may control neighborhood flood problems
WEST LAFAYETTE, Ind. - Constructed wetlands
in planned communities can aid in surface water cl... "Golf courses are a perfect place for constructed wetlands
used as part of a water management system because wetlands
can filter chemicals out of surface water...
Man-made wetland's effectiveness similar to natural marsh
...te. Often called the "kidneys" of the environment, wetlands
act as buffer zones between land and waterways. They also act as sinks wetlands
filter out chemicals in water that runs off from farm fields, roads, parking lots and other surfaces...
South America's vast pantanal wetland may become next everglades, UNU experts warn
...ng of 3 to 4C could eliminate 85% of all remaining wetlands
in the world. It says wetlands
hold roughly one-sixth of all carbon held in terrestrial sinks, most of it organic matter in soil wh...
Earth's services in peril, report concludes
...iated the contribution of forests to air quality, wetlands
for water filtration and flood control, the health of soils as the basis for our food supply. The demand for water by people and industry has doubled since 1960. Underground aquifers are drying up, and sometimes the flow of once-mighty rivers such a...
Scientists take major step to improve river restoration efforts
...r channel to reduce downstream flooding, restoring wetlands
to filter pollution, and removing dams to allow fish to migrate freely up and downstream. Restoring the natural form and function of rivers and streams helps reverse a decline in water quality. Pennsylvania is a leader in removing old and obsolete da...
River restoration field booms, matures
...estoration applies to activities such as restoring wetlands
to filter pollution, reforesting riverbanks to curb erosion, recreating the natural river channel to reduce downstream flooding, and removing dams to allow fish to migrate freely up and downstream. According to the authors of the paper, at least $14 ...
Restoring polluted rivers hindered by lack of coordination
... coastal areas downstream. "Streamside forests and wetlands
are very effective in filtering pollutants of all kinds," she said. "But one thing we do when we degrade rivers is to channelize them. That channelization converts these rivers from functioning ecosystems to efficient gutters, and reduces their abili...
Envisat making sharpest ever global Earth map
...ntiate between similar land cover classes, such as wetlands
and humid tropical rainforests. And information from the satellite's Advanced Along Track Scanning Radiometer will be used to correct for atmospheric distortion and to perform 'cloud masking', or the elimination of cloud pixels. An international ne...
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