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Tag: "debate" at biology news

Can biological traits predict diversification rates in birds?

...and others contain far fewer? There has been much debate in the scientific community over the reason for such variation, but a recent study in The American Naturalist by Albert B. Phillimore (Imperial College London, Silwood Park Campus), Robert P. Freckleton (Oxford University), C. David L. Orme (Imperial...

Computational analysis shows that plant hormones often go it alone

... hormones prefer to do their own thing. For years, debate swirled around whether pathways activated by growth-regulating plant hormones converge on a central growth regulatory module. Now, the cooperation model is challenged by researchers at the Salk Institute for Biological Studies. They show that each ho...

What's nature worth? New computer models tell all

...the counterproductive conservation vs. development debate to thinking about conservation as a form of development," he writes. ...

Global warming may warrant new approaches to ecosystem restoration

... The authors suggest that, "more consideration and debate needs to be directed at the implications of climate change for restoration practice." ...

Large dinosaurs were extremely hot in their day, UF study finds

...ermined dinosaur temperatures -- long a subject of debate in biology -- by combining their understanding of relationships among body size, temperature and growth rates with newly available fossil data on the growth rates of eight dinosaur species. Using a mathematical formula, they produced the first predic...

Methane-belching bugs inspire a new theory of the origin of life on Earth

...olutely central to the idea." "This long-standing debate between the heterotrophic and chemotrophic theories," House continues, "revolved around carbon fixation." The new thermodynamic theory inverts the focus, Ferry says. "All these pathways evolved first to make energy. Afterwards, they evolved to fix ca...

Fertility hope as study shows eggs survive in older ovaries

...y and adulthood. Although their speculation caused debate throughout the scientific community, the scientists could not produce evidence to confirm their idea. However, Professor Findlay and Dr Kerr's research gives support to the theory. Their findings have been published in the July issue of Reproduction....

Man may have caused pre-historic extinctions

...is research is exciting because it throws open the debate as to whether climate change or over-hunting may have led to the extinction of pre-historic horses in North America," said UEA's Karen Robbirt. The Pleistocene period refers to the first epoch of the Quarternary period between 1.64 million and 10,00...

Hard-wiring the fruit fly's visual system

...p later," he said. The study adds to an ongoing debate about the extent to which brain wiring can be genetically programmed. "We have to be careful when we interpret these results in light of the complexity of the human brain," said Bellen. However, he said, "It is astonishing though how only a few ...

Researchers map spread of pathogens in the human body

... calculated, strategic strikes." Currently, the debate over the usefulness of multiple-drug therapy must take into account the full evaluation of potential synergistic effects of combining drugs that can target bacteria in different body compartments. Furthermore, drug resistance can be caused, in part, ...

Did 'ABCs' cause Uganda's fall in HIV rates?

...da's dramatic decline in HIV rates. A provocative debate in PLoS Medicine considers the two sides to the question of whether the ABCs are helpful or harmful in the battle to control the HIV pandemic. Elaine Murphy and Margaret Green (George Washington University School of Public Health and Health Services...

Scientist's persistence sheds light on marine science riddle

... light on a 40-year-old evolutionary debate. The debate involves the mechanism underlying the island rule: that small animals isolated on islands evolve to be larger than their mainland relatives, and large animals evolve to be smaller. In a paper to be published in September in the Journal of Biogeograph...

Salmon farms kill wild fish, study shows

...s of increased predation on infected fish." "The debate is over," said study co-author Alexandra Morton, a biologist with the Raincoast Research Society. "This paper brings our understanding of farm-origin sea lice and Pacific wild salmon to the point where we know there is a clear severe impact." ...

Virtual duck bills demonstrate species coexistence

Ecologists continue to debate how different species manage to coexist. If two species use identical resources, such as food, invariably one will be more efficient and out-compete the other. The classical explanation is that each species has evolved morphological or physiological ...

With cellulosic ethanol, there is no food vs. fuel debate according to MSU scientist

...s instead of corn grain, renders the food vs. fuel debate moot, according to research by a Michigan State Un...tion. With cellulosic ethanol, the 'food vs. fuel' debate goes away." Cellulosic ethanol is made from the stems, leaves, stalks and trunks of plants, none ...

Organic is healthier: Kiwis prove that green is good

...n the SCI’s magazine Chemistry & Industry. The debate over the relative health benefits of organic versus conventional food has raged for years, with UK environment secretary David Miliband declaring in January that buying organic is just a lifestyle choice. The Davis scientists, led by Drs. Maria Amod...

Are journal rankings distorting science?

...ometrics, but we should attempt to refine them and debate in parallel how we can track academic careers and encourage fewer, but better studies that affect the wider community, he concludes....

Why aren't humans furry? Stone-Age moms could be the answer

...ses. I hope that Judith Rich Harris' idea provokes debate and further investigation of this topic." ...

Farmed salmon could become an invasive species in forest streams

...rns from both sides of the farmed-versus-wild fish debate had validity, based on an extensive literature review. Here are some of the findings in the report: At present, breeding populations of escaped farm salmon are not known to exist on National Forest System lands, but the locations of Atlantic ...

Mercury contamination of fish warrants worldwide public warning

...recognized as an important international forum for debate on scientific, social, economic and cultural issues affecting the human environment. Wiener said the Madison Declaration summarizes a year-long effort by many of the world's leading mercury scientists, assembled into four expert panels, to review...

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