Tag: "harvesting" at biology news

Bark Beetle Infestation Spurs Multifaceted Study

...zard for the area. The solution is toallow salvage harvesting and controlled burning, so that the forests canreturn to a healthy state. "Many environmentalists are concerned because they believe this areais old growth forest," says Dr. Alan Taylor, associate professor ofgeography. "It's not, but it is second ...

Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'

...ored and that producing nations define sustainable harvesting levelsand issue logging permits, she said....

Wild Plant Genes Increase Food Production

...ing from the wild rice, O. rufipogon. Results from harvesting wild tomato QTLs were also dramatic. In extensive testing, tomato QTLs from the wild species Lycopersicon hirsutum outperformed the elite tomato variety by 48 percent for yield, 22 percent for soluble contents and 33 percent for fruit color. Tanksl...

Gene Therapy Enables Transplantation Without Immunosuppressive Drugs

...servationsolution used to maintain the liver after harvesting and prior to engraftment,resulting in uptake by the organ. The procedure is performed in low-temperatureconditions that further enhance preservation of the organ. After the transplant surgery, the gene is expressed in the liver in theform of ...

Good Ergonomics Is Good Economics

...conditions and determining the most effective tree harvesting system (method and equipment) for each; and (d) developing ergonomic checklists and work environment surveys tailored to the forest industry. All are expected to result in significant cost savings, as well as greater employee satisfaction and improve...

Carbon In Boreal Forests: Temporary Or Permanent?

...cycle of carbon uptake. Human disturbances suchas harvesting and fire control add to the natural disturbances d...ere directlyassociated with human activities (e.g. harvesting and land-use changes). MikeApps argues that these are not sufficient to determine whether forests ar...

Lights, Camera ... Reaction: Charting The Biological Effects Of Light InBillionths Of A Second

...gemechanism." All of the previously examined light harvesting complexes are very complicated,water-insoluble, membrane protein assemblies, notes Moffat, involving manydifferent proteins, different chromophores, different and often quite complexways of responding to light. "This system provides a simpler way to...

Micro-Plants Yield Pharmaceutical New Wave

...ues such as malaria and viruses. By growing and harvesting the microalgae that produce these chemicals we are harnessing the potential of our marine environment in a way that is very clean and green - protecting the natural resource while gaining value from the remarkable diversity the oceans offer....

Salamanders May Reveal Best Way To Manage Forests

...andingof what happens to the forest during various harvesting and regenerationpractices. They will present their research at the 83rd annual EcologicalSociety of America meeting at the Baltimore Convention Center Aug. 2-6. The Monday, Aug. 3, 10:15 a.m. presentation by Harpole, as part of theAnimal Popu...

Protocol For Sustainable Exploitation Of Non-Timber Tropical Forest Resources Is Gaining Ground

...e rain forest. Theproject combines thesustainable harvesting of just three forest products: bamboo, rattan, and damar(a resin used in paints,varnishes, and inks). If collected within limits, Dr. Peters has determined,these renewable resources willgrow back year after yearpproviding increased income for the fa...

Sustainable Harvest Of Caiman Falls Short Of Potential

...recommend both establishingecotourism programs and harvesting other valuable wildlife living on theVenezuelan plains, such as anacondas and tegu lizards....

Trash From Crop-Processing Plant Harvested For Disease-Fighting Agents

...king for disease-fighting compounds closer tohome, harvesting potential agents from thetrash piles of byproducts at crop-processing plants. Initial laboratory tests on cultured mammalian and human cells indicate anethanol extract of soybean molassesrepresses the ability of at least one dietary carcinogen to dam...

Echinacea Symposium Presents New Research On Chernobyl Victims

...Disseminate the latest conservation research about harvesting and sustainingwild Echinacea; Help industry prof...y. The ecology of Echinacea -- the bioimpacts of harvesting on the available supplyof Echinacea. Dana Price Hurlburt, University of Kansas, Kansas Biological Su...

Horseshoe crab studies providing new insight into valuable ancient creatures

...there are numerous reasons for concern: commercial harvesting of horseshoecrabs is increasing, and much of the s...oncern to researchers and managers is theincreased harvesting of horseshoe crabs for use as bait in American eel andwhelk fisheries. University of Delaware biolo...

Congress briefs: International congress on ecosystem health

...t recent research results measuring dustemitted by harvesting of almonds, walnuts, cotton and figs in California's SanJoaquin Valley. Session: T36 -- Fertile and Fallow Paper: "Fallow Land Patches and Ecosystem Health in an Agro-Ecosystem" Summary: John Hopkins of the UC Center for Water and Wildland Res...

Watershed responses to forest practices studied

...forest managersdesign or modify forest roads, tree harvesting and other land-use activitiesbased on effects to watersheds, streams and fish habitat. Researchers at the Department of Energy's Pacific Northwest NationalLaboratory have expanded the capabilities of a watershed model to make itpossible to ex...

On the floor of the sea: USGS biologists search for rare, white abalone

...the late1970s, intense commercial and recreational harvesting made the abalone asdifficult to locate a needle in an ocean-sized haystack. "People thought it was impossible to take such a fecund animal - a single femalecan produce 10 million eggs in a season - and drive it to extinction throughfishing," said Gar...

Reversible bone shrinkage documented in Galapagos iguanas

... mouths get smaller, making them more efficient at harvesting the tiny amounts of available algae,” Wikelski said. “They shrink to reach a body size where survival is high. If they shrank a centimeter or so, they already increased their survival rate by 10 percent. If they shrink more, they can incre...

INEEL microbiologist joins Japanese on expedition to tap marine-methane deposits

...the expedition was to explore the possibilities of harvesting the fuel. Delwiche spent the first couple of balmy 75-degree days on the drilling rig "on call" and ready to take samples as the crew positioned the semi-submersible drilling rig and started to core into the ocean floor. But a couple of experiment...

Tobacco farm workers may contract tobacco sickness, Wake Forest study shows

...s the contact between the leaves and the skin. The harvesting of tobacco requires repeated trips through the field over a number of weeks, as the leaves are harvested from the bottom up. While the symptoms of green tobacco sickness ordinarily include nausea, vomiting, and dizziness, she said there were no esta...

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