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Tag: "bird" at biology news

Wright bros. upstaged! Dinos invented biplanes

...specially raptors as well as the earliest Jurassic bird Archaeopteryx, also have (or had) feathers on their legs, Chatterjee says. But these are not flight feathers and appear adapted to streamline the legs during catching and carrying prey so they don't interfere with flight. Another key element to dis...

Agricultural workers at increased risk for infection with animal flu viruses

...e fact that pigs can be infected by swine viruses, bird (avian) viruses as well as human flu viruses--ther... Diseases. "If migratory birds introduce the H5N1 bird flu virus into swine or poultry populations in this country, agricultural workers may be at a much g...

UF study first to quantify validity of DNA I.D. tool using marine snails

...lied use already being employed is identifying the bird species responsible when a carcass damages an airplane engine, he said. "Engines are built to withstand strikes by birds up to a certain size, but not a large crane or goose," he said. "Thus, it's helpful to know which brand of shredded tweet went th...

Independent researchers confirm the existence of ivory-billed woodpecker

...rida Gulf Coast University have concluded that the bird has been indeed been detected for the first time in decades. Yale ornithologist Richard Prum states, "We were very skeptical of the first published reports, and thought that the previous data were not sufficient to support this startling conclusion....

UQ scientists break new ground in fight against infection & chronic disease

...ld revolutionise treatments for conditions such as bird flu, arthritis, and inflammatory bowel disease, by... caused patients to die from acute infections like bird flu and to acquire chronic inflammatory diseases such as arthritis and inflammatory bowel disease. T...

On a wing and a prayer - Alaska researchers seek clues to bird flu

... mixing ground for the evolution of new strains of bird flu - strains that could spread to lower latitudes...do not infect humans. However, recent outbreaks of bird flu in Southeast Asia were caused by a highly pathogenic H5N1 strain and there is increasing evidenc...

Volunteers sought for avian flu vaccine study

...pants will then be given three doses of either the bird flu or placebo vaccine over the next six months and will be required to provide blood samples to test if protection against the virus was produced. People 65 years or older who are interested in hearing more about the avian flu vaccine study, may c...

DNA from feathers tells tale of eagle fidelity

... DNA fingerprinting uncovers genetic monogamy in a bird population," DeWoody said. Unlike their smaller songbird cousins, most raptors are believed to be truly monogamous, and this study provides the first genetic confirmation of monogamy in at least one species, DeWoody said. "It's very likely that oth...

Disappearing arctic lakes linked to climate change

...ng effect. Changes could include loss of migratory bird habitat resulting in an effect on subsistence activities as well as changes to local and regional atmospheric conditions, including more localized wind and more frequent and more severe wildland fires." ...

WCS says avian flu prevention should focus on farms, markets

...tain that indiscriminate culling of wild migratory bird populations would be ineffective in preventing the spread of the disease. The outbreak of avian influenza in Mongolia has coincided with confirmations of cases in Russia and Kazakhstan. The initial reports of avian influenza came from the Mongolian ...

Toxic flood lifts lid on common urban pollution problem

...ntains heightened levels of bacteria stemming from bird and animal droppings, among other sources. Sansalone said based on his studies of urban runoff alone, it's critical that environmental officials scour the city of flood residue. "How we clean up this residual matter - which will not be easy - will b...

Bird samples from Mongolia confirmed as H5N1 avian flu

... Present in Mongolia for a health survey of wild bird populations in the south and north of the country,...tain that indiscriminate culling of wild migratory bird populations would be ineffective in preventing the spread of avian flu. "Focusing our limited resour...

What comes first…the chicken, the egg, or the bad attitude?

...it very willingly. It is not a conscious thing the bird does, but it does express a tendency of that bird to either be generous or to be selfish with its nutrients." Channelling food into body-building res...

Overbearing colored light may reveal a second mechanism by which birds interpret magnetic signals

...ation is critical to the migratory success of many bird species. By studying the influence of light on the ability of migratory birds to orient to magnetic signals, researchers have found clues to suggest that birds' orientation abilities may be more complex than previously thought and that birds may be a...

Looks matter to female barn swallows

...egrading bacteria are known to affect the color of bird feathers once they are grown, and perhaps the best males are those who spend more time preening and protecting their plumage." The paper's other co-author is Colby Neuman, Cornell B.S. '05. In early September, Safran began a new position as a postdo...

Why are coyotes getting more aggressive?

...p trash secure and compost bins covered. # Monitor bird feeders to ensure that they are not attracting other wildlife. # Keep dog and cat food bowls inside. # Since coyotes like to hide in areas near food, keep bushes thinned and close off crawl spaces to prevent coyotes from resting or denning under buil...

UN: World in big ecological mess

...ersity, with some 10 to 30 per cent of the mammal, bird and amphibian species currently threatened with extinction. * Ecosystem degradation is a barrier to achieving the MDGs. In all the four plausible futures explored, scientists project progress in eliminating hunger, but at far slower rates than neede...

Mother birds increase progesterone to hatch females

...s think they understand the mechanism that several bird species use to bias the sex ratios of their offspr... their territory has plenty of food and the mother bird needs help in feeding the next generation," says Correa. Since males disperse, the mother bird may a...

The lopsided brain: Attention bias is shared by humans and birds

...might be. In the new work, researchers tested two bird species, the domestic chick and the pigeon, for their performance on a task in which they were allowed to freely peck at grains of food that were spread evenly in an area before them. Though the birds' bodies were positioned at the midline of the sea...

NIAID begins clinical trial of West Nile virus vaccine

...hat has been infected after feeding on an infected bird or animal. The virus also can be spread through blood transfusions, organ transplants and breastfeeding, as well as from mother to child during pregnancy. Most people experience no symptoms or only mild symptoms, such as fever, headache and body ache...

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