Tag: "flocks" at biology news
Swarming starlings help probe plasma, crowds and stock market
...wind and fusion reactors, to crowds of people, or flocks
of birds. The technique could even be used to fin...mplex systems such as plasma, crowds of people, or flocks
of birds suddenly move from a disordered random state to an ordered one. To crack this problem they...
Screening for fragile skin
...nd defined the disorder in Australian White Dorper flocks
at the Elizabeth Macarthur Agricultural Institute ...tation exists in sheep from most of the Australian flocks
weve tested," Dr Berg said. Technical assistant Nelson Jimenez selects White Dorper hairs for ana...
University of Alberta researchers unravel intricate animal patterns
...bout how animalsfish schools, locust swarms, large flocks
of birds--form large complex dynamical groups. It ...ies, says Eftimie. "However, we can think of those flocks
of birds that fly in one direction, and then suddenly change direction 180 degrees, and compare this...
Eavesdropping nuthatches distinguish danger threats in chickadee alarm calls
...py many of the same habitats, exist in mix-species flocks
during the winter and are attacked by the same predators. To see if and how nuthatches responded to the chickadee alarm calls, Templeton placed a speaker at the base of trees in a forest where pairs of the nuthatches were present. He observed their ...
Why do birds migrate?
...n. The team also found that species that forage in flocks
are less likely to migrate. "If you are faced with food scarcity, you have two options," Boyle said. "You can either forage with other birds or you can migrate." When birds band together to search for food, the group is more likely to find a new...
Bird flu study highlights need to vaccinate flocks effectively
Incomplete vaccination of poultry flocks
could make the spread of deadly strains of avian f...he first to quantify how incomplete vaccination of flocks
can contribute to the undetected spread of the disease. Vaccination of commercial poultry against ...
Study documents marathon migrations of sooty shearwaters
...ers arrive off the coast of California, their huge flocks
astonishing visitors who may have trouble grasping that the dark swirling clouds over the water consist of seabirds. Scientists have long known that sooty shearwaters breed in New Zealand and Chile and migrate to feeding grounds in the Northern Hemis...
Underwater robots work together without human input
...icles -- a challenge inspired by the grace of bird flocks
and fish schools -- may give biologists greater insight into the highly efficient behaviors of animals. The August field experiment is the centerpiece of a three-year program known as Adaptive Sampling and Prediction (ASAP), which is funded by the ...
Origen publishes in Nature a robust and versatile method for creating transgenic chickens
... designs that work well in model systems and breed flocks
of birds depositing therapeutic proteins in their ...l germ cells, the ease of producing small or large flocks
of chickens, and the existing infrastructure for rearing chickens and processing eggs means that the...
Faster immune system testing set to improve poultry quality
...are particular concerns. A simple test to identify flocks
that have been immunosuppressed by non-apparent in...rovide poultry companies with an early warning for flocks
that will experience secondary infections because of immunosuppression. The MOLECULAR TESTS project...
Early California: A killing field
...f water fowl darkened the surface of every bay in flocks
of millions. When disturbed, they arose to fly. The sound of their wings was like that of distant thunder." --George Yount, California pioneer, at San Francisco Bay in 1833 When explorers and pioneers visited California in the 1700s and early 1800s...
Study in Royal Society journal on possiblity of human organ regeneration
...NP variation, thereby creating genetically uniform flocks
and (iii) may even fail to achieve their primary objective - scrapie eradication. In summary, this timely paper will appeal to scientists, the broader public and even the script-writers of The Archers! Contact: Dr J Slate, Animal & Plant Sciences, U...
Happy and passive means more productive animals
...two generations of picking more passive quail, the flocks
had a dramatic decrease in aggressive behavior and injuries. The study also showed that when classical breeding approaches were used, competition became worse and productivity declined, he said. The only way to solve this problem is through accountin...
Global bird populations face dramatic decline in coming decades, study predicts
...ndant-and they used to occur in unimaginably large flocks
of hundreds of millions of birds-the acorns on which they specialized would have been too scarce to support large populations of deer mice, the main reservoir of Lyme disease, that thrive on them today." Scavengers and insectivores More than a thir...