Daily non-political popular news in brief.
Mode of seed dispersal greatly shapes placement of rainforest trees
11-28-2006 · EurekAlert!The apple might not fall far from the tree, but new research shows that how it falls might be what is most important in determining tree distribution across a forest. This study of the seed dispersal methods of rainforest trees demonstrates that these methods play a primary role in the organization of plant species in tropical forests.
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Keywords: mode, seed, dispersal, greatly, shapes, placement, rainforest, trees, shape, tree
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- With fruit fly sex, researchers find mind-body connection
11-30-2006 · EurekAlert!
The fruit fly gene "doublesex" is responsible for ensuring that male flies look male and females look female. New Brown University research led by biologist Michael McKeown shows that doublesex not only helps shape bodies but also shapes behavior, acting with together with the gene "fruitless" to guide flies' courtship routines and responses. The finding, published in Nature Genetics, shows that sexual development in flies -- and, perhaps, in humans -- is a more complicated proposition than previously thought.
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- Experiment suggests limitations to carbon dioxide 'tree banking'
08-07-2007 · EurekAlert!
While 10 years of bathing North Carolina pine tree stands with extra carbon dioxide did allow the trees to grow more tissue, only those pines receiving the most water and nutrients were able to store significant amounts of carbon that could offset the effects of global warming, scientists told a national meeting of the Ecological Society of America.
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- ORNL receives $1 million for biofuels research with poplars
06-19-2007 · Oak Ridge National Laboratory (ORNL)
Through a better understanding of photoreceptors that influence the shape and growth of poplar trees, researchers at Oak Ridge National Laboratory hope to improve crop yields for ethanol production.
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- Tree rings show elevated tungsten coincides with Nevada leukemia cluster
04-30-2007 · EurekAlert!
Tungsten began increasing in trees in Fallon, Nev. several years before the town's rise in childhood leukemia cases, according to a research team led by Paul R. Sheppard of the University of Arizona's Laboratory of Tree-Ring Research. This is the first study that has examined changes in levels of heavy metals in Fallon over time.
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- Fuel from fiber -- Pretreatment can put corn stalks, trees in your car's tank
05-04-2007 · EurekAlert!
"Put a tree in your tank." Fuel companies aren't touting that slogan. At least not yet. But thanks to research done in part by Bruce Dale, Michigan State University professor of chemical engineering and materials science, making fuels from poplar trees and corn stalks is becoming more efficient and cost-effective.
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- The proof is in the tree bark
11-26-2007 · EurekAlert!
A study by Indiana University researchers found the chlorinated flame retardant Dechlorane Plus in the bark of trees across the northeastern US, with by far the highest concentrations measured near the Niagara Falls, N.Y., factory where this chemical is produced.
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- Soil nutrients shape tropical forests, large-scale study indicates
01-11-2007 · EurekAlert!
Tropical forests are among the most diverse plant communities on earth, and scientists have labored for decades to identify the ecological and evolutionary processes that created and maintain them. A key question is whether all tree species are equivalent in their use of resources -- water, light and nutrients -- or whether each species has its own niche.A large-scale study by researchers at the University of Illinois at Urbana-Champaign and eight other institutions sheds some light on the issue.
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- Carnegie Mellon University research shows how sensory-deprived brain compensates
04-17-2007 · EurekAlert!
Whiskers provide a mouse with essential information. These stiff hairs relay sensory input to the brain, which shapes neuronal activity. In a first, studies of this system by Carnegie Mellon scientists show just how well a mouse brain can compensate when limited to sensing the world through one whisker. Published April 4 in the Journal of Neuroscience, the results should help shape future studies of sensory deprivation that results from stroke or traumatic brain injury.
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- Climate change predicted to drive trees northward
12-03-2007 · EurekAlert!
A study based on an extensive data-gathering effort concludes that expected climate change this century could shift the ranges of 130 North American tree species northward by hundreds of kilometers and shrink the ranges by more than half.
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- Drought sensitivity shapes species distribution patterns in tropical forests
05-14-2007 · EurekAlert!
Looking at a rainforest it's easy to see that there are hundreds of different tropical plant species that inhabit the forest. Although the patterns of plant distributions in tropical forests have been widely studied, the reasonings behind these patterns are not as well known. This study, published in Nature, explores these patterns.A contingent of researchers from around the world, including Panama, Germany, USA and Canada, have uncovered that tropical plant species distribution patterns are linked to the plant’s drought sensitivity.
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