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'Time-sharing' tropical birds key to evolutionary mystery
11-13-2007 · EurekAlert!Whereas most birds are sole proprietors of their nests, some tropical species "time share" together -- a discovery that helps clear up a 150-year-old evolutionary mystery, says Queen's University biology professor Vicki Friesen.
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Keywords: time-sharing, tropical, birds, key, evolutionary, mystery, time, sharing, bird
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- Scientists find mutations that let bird flu adapt to humans
11-15-2006 · EurekAlert!
By comparing influenza viruses found in birds with those of the avian virus that have also infected human hosts, researchers have identified key genetic changes required for pandemic strains of bird flu.
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- Crowcam: Camera on bird's tail captures bird ingenuity
10-06-2007 · Science News Online
Video cameras attached to tropical crows record the birds' use of plant stems as tools to dig out food.
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- Alpine bird numbers on the slide due to high-altitude ski runs
01-16-2007 · EurekAlert!
High-altitude ski runs are seriously affecting Alpine birds, ecologists have found for the first time. Writing in the January issue of the Journal of Applied Ecology, Italian ecologists warn that ski pistes above the tree line result in fewer species and lower numbers of birds compared with natural grassland at similar altitudes. Ski developers should use new, environmentally-friendly techniques when constructing pistes in future, they say.
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- Smithsonian's National Zoo researchers use electronic eggs to help save threatened species
07-26-2007 · EurekAlert!
This is an important summer for kori bustards at the Smithsonian's National Zoo. Four chicks of this threatened African bird have hatched in June and July. Along with the bumper crop of baby birds is a bumper crop of new information for scientists working to preserve the species, thanks to an electronic egg that transmits real-time incubation data from the nest.
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- Lessons from Turkey's bird flu outbreak
11-14-2007 · EurekAlert!
Rapid responses by Turkey's health authorities and key health personnel were critical in bringing the 2006 bird flu outbreak under control, according to research published in the online open access journal, BMC Public Health. Those involved cite poverty and families sharing their homes with poultry as factors behind the virus' transfer to humans.
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- Uncertainty of rainfall breeds cooperation in birds, study finds
08-16-2007 · EurekAlert!
For the first time, Cornell researchers have linked a specific aspect of the environment to the evolution of cooperative breeding in numerous bird species: unpredictable rainfall. Their findings on African starlings appear in the Aug. 21 issue of Current Biology.
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- Soil nutrients shape tropical forests, large-scale study indicates
01-11-2007 · EurekAlert!
Tropical forests are among the most diverse plant communities on earth, and scientists have labored for decades to identify the ecological and evolutionary processes that created and maintain them. A key question is whether all tree species are equivalent in their use of resources -- water, light and nutrients -- or whether each species has its own niche.A large-scale study by researchers at the University of Illinois at Urbana-Champaign and eight other institutions sheds some light on the issue.
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- Information on bird flu cases poorly recorded, scientists say
11-01-2006 · EurekAlert!
Critical information about cases of infection of wild birds by H5N1 highly pathogenic avian influenza is being recorded inaccurately or not recorded at all, according to scientists writing in BioScience. Species and sex of the bird as well as exact time and location of trapping or collection are among the data that have been improperly reported, compromising attempts to study the disease.
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- Wanting ahead -- Birds plan for future desires
04-26-2007 · EurekAlert!
For a long time, it had been argued that only humans can draw on past experiences to plan for the future, whereas animals were considered "stuck in time." However, it has become clear that some animals can indeed plan for future needs. Surprisingly, the most convincing examples of future planning are not derived from our closest relatives, the apes, but from a bird, the Western scrub-jay.
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- St. Jude influenza survey uncovers key differences between bird flu and human flu
08-20-2007 · EurekAlert!
Scientists at St. Jude Children's Research Hospital have found key features that distinguish influenza viruses found in birds from those that infect humans.
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