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Tag: "birds" at biology news

Art and music for the birds

...or local birds. Demaray’s concept of art for the birds hatched from a conversation with co-creator John W... by Belle and Sebastian. “If we’re going to give birds music, we might as well give them what we consider to be our masterpieces. But the only gauge humans...

ASU research shows connection between testosterone, dietary antioxidants and bird coloration

...Carotenoids are known to play several key roles in birds and fish, including contributing to their bright c... the functions of naturally occurring chemicals in birds and their relationship to the birds’ colors and health. “In the case of the zebra finch, the cos...

Study investigates 'divorce' among Galapagos seabirds

...ssfully breeding probably improves as the pairs of birds get older and are together longer, as has been found in other birds. But, often the female seeks a divorce after a few breeding seasons. Since males significantly outnumber females in the colony studied, there are plenty of bachelors available i...

Prey not hard-wired to fear predators

...here wolves and grizzly bears were lost, migratory birds including warblers and hummingbirds were less abundant because moose over-browsed vegetation used by these migrants. “It is not just changes in climate or disease may alter our big remote wild landscapes, but so do the actions of conservationists and...

CU study reveals why starling females cheat

...hemselves and their mates, though other species of birds appear to adopt similar mating strategies. "This is the first study to show that individuals from the same population mate with extra-pair males and gain both direct (like additional helpers) and indirect benefits (like better genes for the offspr...

Eavesdropping comes naturally to young song sparrows

...pertoires have found the first evidence that young birds choose many of their songs by eavesdropping on the...en though they learned from both tutors, the young birds acquired more than twice as many songs from the tutor on which they eavesdropped, said Michael Beech...

Moths mimic sounds to survive

...t chemically protected. This is similar to the way birds avoid butterflies that look like the bad-tasting Monarch. The two species of bats used were big brown bats and red bats. Barber raised the bats in the lab so behavior learned in the wild would not influence the results of the experiment. Bar...

'Personality-gene' makes songbirds curious

...ine). The scientists assessed the curiosity of the birds in a test which shows similarities to the traditio...ure 2). The results from the group of selected birds were confirmed with data from free-living, unselected great tits. In the forest-living birds, the sc...

Amphibians in losing race with environmental change

...on amphibians than many other vertebrates, such as birds or mammals. "Historically, amphibians were adept at evolving to deal with new conditions," Blaustein said. "What they are doing is showing us just how rapid and unprecedented are the environmental changes under way. Many other species will also be...

Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems

...ards and introduced snakes have caused the loss of birds and lizards on islands. “Cases of species introductions wreaking havoc on islands are likely to become more common as the islands face increasing pressures from population growth, tourism, development, and climate change,?says Jetz. “The consequ...

Invasion of the island bats

... severe blow recently when evolutionary studies of birds of the South Pacific and Caribbean lizards uncovered at least three separate cases of island-to-continent colonization. Then again, these few instances could be interpreted as the exceptions that prove the rule, anomalies easily explained by the uniq...

New host species for avian influenza identified

...dy, which included more than 36,000 wild migratory birds tested for low pathogenic avian influenza, details...cal variation of avian influenza in wild migratory birds in Europe. Seven previously unknown host species for H5N1 were identified, including four species of...

Brain maps online

...f the brains of humans, monkeys, dogs, cats, mice, birds and other animals have been created and posted online by researchers at the UC Davis Center for Neuroscience. BrainMaps.org features the highest resolution whole-brain atlases ever constructed, with over 50 terabytes of brain image data directly ...

NIAID expands capability for influenza research and surveillance

...ucted surveillance of influenza viruses in aquatic birds and live bird markets in Hong Kong, which helped s...ent of disease, the adaptability of flu viruses in birds and mammals, and the transmission of flu viruses between different hosts. University of Rochester...

Bones in motion: Brown scientists to create new 3-D X-ray system

...evolution of complex movements, from the flight of birds to the leap of frogs. "This will be like having... work on pilot projects to visualize pigs walking, birds flying and frogs jumping, using seed funds from Brown's Office of the Vice President for Research an...

Cloning the smell of the seaside

...a remarkably effective food marker for ocean-going birds such as shearwaters and petrels. It acts as a homi...s sprouts at the Christmas dinner table! - and the birds sniff out their plankton food in the lonely oceans at astonishingly low concentrations. Scientist...

Despite their heft, many dinosaurs had surprisingly tiny genomes

...s that the small genomes typically associated with birds -- whose genetic composition is noticeably sparer ...o, rather than with the emergence of modern living birds just 110 million years ago. Organ and Edwards suggest after this shrinking, theropod genomes then st...

Study finds antibiotic resistance in poultry even when antibiotics were not used

... don't necessarily come from antibiotic use in the birds that we eat," Lee said, "so banning antibiotic use... her team sampled droppings from more than 140,000 birds under four different conditions: 1.) commercial flocks that had been given antibiotics; 2.) commerci...

Cambodian vulture nests offer hope for species

...lso a host of other globally threatened species of birds and primates. It's a very special place." Chan...s for the survival of the species. However, these birds are still endangered from other threats, such as a lack of food due to the over-hunting of large-bod...

Woman's Day and For Womens of Science

...f the world. Methylmercury levels in fish-eating birds and mammals in some parts of the world are reaching toxic levels, which may lead to population declines in these species and possibly in fish populations as well. "The policy implications of these findings are clear," said James Wiener, a Wisc...

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