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Tag: "bird" at biology news

A case of mistaken identity for the ivory-billed woodpecker?

...ed Collinson concludes that Luneau's video shows a bird that is not fully identified, and probably a Pilea... impossible that a crow-sized black, white and red bird should have eluded the nation's ornithologists, hunters and conservationists in heavily populated So...

Bats prey on nocturnally migrating songbirds

...jor seasonal shifts in isotopic signatures towards bird prey in spring and, especially, during autumn. In parallel, isotopic signatures of whole insect bodies and passerine muscular tissues were tracked throughout the year, serving as a control. The results elegantly showed that the bats ate only insects ...

Computer scientists join in search for ivory-billed woodpecker

...nd also, the shape of the object ?the shape of the bird ?isn't regular. It's deformable, and from the ligh...n Cache River and have a deep understanding of the bird and this environment." Scott Henderson, director of the Arkansas Game and Fish Commission, said h...

UF scientists discover new genus of frogmouth bird in Solomon Islands

Your bird field guide may be out of date now that University...ida scientists discovered a new genus of frogmouth bird on a South Pacific island. New genera of living birds are rare discoveries ?fewer than one per yea...

Study uncovers a lethal secret of 1918 influenza virus

...mplications of H5N1 avian influenza, the strain of bird flu present in Asia and which has claimed nearly 150 human lives but has not yet shown a capacity to spread easily among people. "What we see with the 1918 virus in infected monkeys is also what we see with H5N1 viruses," Kawaoka says, suggesting ...

Bird sex is something else

...y shows that birds are extraordinary, because some bird genomes can live with an apparent overdose of sex-related genes. US researchers Itoh, Melamed et al. working in Arthur Arnold’s University of California, Los Angeles laboratory used RNA microarray analysis for their dosage compensation study. The t...

Recently discovered species gain protection

... chestnut-capped piha is an unassuming robin-sized bird restricted to a few tiny remnant forest patches in the Antioquia Department of Colombia, in the Central Cordillera of the Andes. It is so restricted in its distribution that it evaded discovery until 1999, and has been identified by the Alliance for...

Pacific Rim researchers to collaborate on distributed bioinformatics analysis of avian flu

... of reverse genetics techniques to combat emerging bird flu pandemic threats. To that end, researchers intend to: Characterize the function of the influenza viruses using a structure-based approach; Develop simulations of the molecular dynamics involving interactions among major factors that may d...

Birds found to plan for the future

...ly human activity, but now at least one species of bird has also been found to plan for tomorrow. The find... ago, and they also keep track of which particular bird was watching when they cached so that they can protect their caches accordingly from being stolen by...

'Terror bird' arrived in North America before land bridge, study finds

... in a new application to revise the ages of terror bird fossils in Texas and Florida, the only places in N...age to be 5 million years old. This shows that the bird arrived 2 million years before the land bridge formed, probably across islands that formed what toda...

Bird flu -- Call for antiviral drugs to be shared

New predictions about bird flu, involving the use of a mathematical model, suggest that international cooperation to share antiviral drugs might be the best way to deal with an emerging pandemic. 'Bird flu'(avian H5N1 influenza) has not triggered a worldwide human epidemic ye...

Fish can determine their social rank by observation alone, study finds

... It's been demonstrated in primates, rats and some bird species, but how and why it evolved in animals is a matter of debate." Aggressive bouts In the experiment, the Stanford team used a popular laboratory fish called Astatotilapia burtoni, one of many cichlid species that inhabit Lake Tanganyik...

A first glimpse of the influenza replication machine

...ly infectious avian strain has caused outbreaks of bird flu around the world. There is great concern that ..., the polymerase, contribute to the ability of the bird virus to jump the species barrier to humans. Researchers from the European Molecular Biology Laborat...

Global map shows new patterns of extinction risk

...vided up into 100km x 100km grids, and all mammal, bird and amphibian species within each grid square were...hreaten mammals, birds and amphibians: "Endangered bird species are often at risk because their habitats are being destroyed. However, different factors ent...

Cities change the songs of birds

By studying the songs of a bird species that has succeeded in adapting to urban li...ionary time scales, but major shifts in a region’s bird population, including extinction, can take place here and now. Urbanization typically leads to a tur...

Tiny Tampa Bay fish key to evolution of immune system

...t a specific pathogen such as anthrax, smallpox or bird flu, we have to take into account the defensive measures those and other organisms might have." Organisms such as plants, fungi and primitive animal life are classified as having an innate immune system, which defends against invaders by recognizing...

New bird discovered on unexplored Columbian mountain

A new bird to science was recently discovered on an unexplore...ithologists Club (Vol. 126: June 2006). The new bird is named for the Yariguies indigenous people who formerly inhabited the mountain range where the bir...

New drug blocks influenza, including bird flu virus

... worry that the flu virus, and especially the H5N1 bird flu virus, will evolve to the point where existing drugs are no longer effective. Drugs now on the market work by either preventing virus replication within the cell or preventing the release of viruses from the cell. The peptide found by the Wisco...

Biodegradable napkin -- featuring sensitive nanofibers -- may quickly detect biohazards

... whatever is the hazard of the week, whether it is bird flu, mad cow disease or anthrax." Frey and her colleagues are still working on ways, such as a color change, for the fabric to signal that it has identified the contaminant. "We're probably still a few years away from having this ready for the real...

Climate change creates dramatic decline in red-winged black bird population

...llinois researcher reports that a red-winged black bird population in Ontario, Canada has decreased by 50 ...ad put his 25-year data about the red-winged black bird alongside climate records, he found a direct correlation with the North Atlantic Oscillation. The NA...

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