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Tag: "bird" at biology news

Scientists find mutations that let bird flu adapt to humans

...y genetic changes required for pandemic strains of bird flu. The new work, reported in the Nov. 16 issue ...nd secure viral isolates from humans infected with bird flu, they may be able to map a mutation trajectory that will help predict when the avian virus will ...

Tiny bones rewrite textbooks

... the theory that New Zealand's diverse prehistoric bird fauna had evolved there because they had no competition from land mammals. An international team led by Trevor Worthy, of the University of Adelaide, Alan Tennyson, of the Museum of New Zealand Te Papa Tongarewa, and Mike Archer, of the University...

Ancient birds flew on all-fours

...und while running and shows that the dinosaur-like bird Archaeopteryx soared using wing-like feathers on all of its limbs. "The discussions about the origins of avian flight have been dominated by the so-called 'ground up' and 'trees down' hypotheses," Longrich said. "This paper puts forward some of the ...

Disappearing nest egg: Researcher studying declining numbers of macaws

...rend is continuing today. Dr. Don Brightsmith, a bird specialist at Texas A&M University's Schubot Exotic Bird Center, part of the College of Veterinary Medicine & Biomedical Sciences, is studying ways to make sure macaws will not just be photos in a book one day. Brightsmith says there are 17...

A human taste for rarity spells disaster for endangered species

The shady pursuit of endangered bird eggs made international headlines in May 2006 when...uk (Pinguinus impennis)--a flightless, now-extinct bird that laid only one egg a year--to the brink of extinction. But it was likely scientists and museum c...

Ground spider diversity studied in research project

... habitat, she said. The park has areas for hiking, bird watching and horseback riding, and is one of the areas that has Navasota Ladies'-Tresses, an endangered orchid. More information on the park can be found at http://www.cstx.gov/docs/111946232004lick_creek_brochure-04.pdf . ...

Ohio University researchers discover evolutionary oddity in flamingos

...d barium/latex mixture into the blood vessels of a bird that had died and was donated by the Brevard Zoo in Florida. A 3-D view of the bird's head was created using a new computed tomography (CT) scanning technique developed by the Ohio University team that highlights blood vessel anatomy. The researchers...

Air travel and pandemic flu

...ly, there have been concerns about the new type of bird (avian) flu. At present the virus responsible does not pass easily from birds to humans, and it does not seem to pass from one human to another. However, the fear is that the virus might change and that human-to-human infection could then be possible...

St. Jude test of bird flu vaccine proves successful

...ld protect humans against multiple variants of the bird and human influenza viruses, according to Richard ...and H5, a "variable" protein on the surface of the bird and human flu viruses that is critical to their ability to infect cells. This variable protein is kn...

Control measures fail to stop spread of new H5N1 virus

A new variant of the bird flu virus H5N1 emerged in late 2005 and replaced m..., Laos, Malaysia, and Thailand, resulting in a new bird flu outbreak wave in Southeast Asia that has caused human infections as well, according to the Hong ...

New strategy developed to combat West Nile Virus

...usively on the nesting birds and as a result, each bird is bitten by numerous mosquitoes. A single infected bird can thus infect many more mosquitoes than if conditions were wet and the mosquitoes were more broadl...

Zebra finch males prefer females with exaggerated maternal traits

...n the June 6th issue of Current Biology. In most bird species, young individuals take their parents as a model for what their later sexual partner should look like. This is the process of sexual imprinting, made famous by the Nobel prizewinner Konrad Lorenz. Nonetheless, most birds prefer mates in which...

New bird flu drug promises to beat the problem of resistance

A new kind of drug to fight bird flu that will not suffer from the same kind of res...overnments in preparation for a global outbreak of bird flu, are inherently susceptible to resistance because of the way they work. The first major warnin...

Scientists to employ Arctic ice and polar bears to protect diversity of world's crops

...tics, the team mixed genes from a safe, laboratory bird flu virus with a gene for the hemagglutinin (HA) protein from the H5N1 virus isolated in Hong Kong. The virus uses the HA proteins on its surface to infect cells in the respiratory tract. The resulting vaccine had the outside appearance of a dangerou...

H5N1 vaccine could be basis for life-saving stockpile

...tics, the team mixed genes from a safe, laboratory bird flu virus with a gene for the hemagglutinin (HA) protein from the H5N1 virus isolated in Hong Kong. The virus uses the HA proteins on its surface to infect cells in the respiratory tract. The resulting vaccine had the outside appearance of a dangerou...

Even a little cooling helps after cardiac arrest

...e student Ryan Hechinger conducted four month-long bird surveys at the study site, using video cameras to ...ed encouraging as the video-based estimates of the bird community were in close agreement with those from the snail-trematode analysis. "The more birds ther...

How healthy is that marsh? Biologists count parasites

...e student Ryan Hechinger conducted four month-long bird surveys at the study site, using video cameras to ...ed encouraging as the video-based estimates of the bird community were in close agreement with those from the snail-trematode analysis. "The more birds ther...

Can biological traits predict diversification rates in birds?

...f other types of organisms." The study found that bird families with high seasonal dispersal rates and very general feeding patterns also had the highest species diversification rates. ...

Bird flu study highlights need to vaccinate flocks effectively

...er birds die. The result is increasing amounts of bird flu virus contaminating the birds' surroundings wi...because sentinels allow for the rapid detection of bird flu, irrespective of the level of vaccine protection in a flock. Dr Nick Savill, of the Universit...

UF scientists restore sight to chickens with blinding disease

...eated animals far exceeded our expectations." The bird -- a type of Rhode Island Red chicken -- carries a genetic defect that prevents it from producing an enzyme essential for sight. The condition closely models a genetic disease in humans that causes Leber congenital amaurosis type 1, or LCA1. About 2,...

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