Tag: "domesticated" at biology news
ASU research shows connection between testosterone, dietary antioxidants and bird coloration
...nia, focused their work on zebra finches, a common domesticated
pet bird originally from Australia. Carotenoids are known to play several key roles in birds and fish, including contributing to their bright colors, which acts as a signal to attract potential mates. They also act as an antioxidant in the body, whic...
Potent possibilities for parasite attack
...y the bite of various species of sandfly: wild and domesticated
animals - as well as humans - act as a reservoir for the disease....
Hives ferment a yeasty brew, attract beetle pest
...pest, bees quickly isolate an invading beetle, but domesticated
European honeybees are not as diligent in cleaning... threat to African honeybee hives, it appears that domesticated
European honeybees have a much harder time containing the beetles in their hives. European honeybees...
Man's best friend lends insight into human evolution
...er than fear, human company. According to Hare, domesticated
dogs' ability to solve social problems may have emerged once the brain systems mediating fear were altered ?and the same thing may have occurred in human evolution. Chimps, he says, are constrained in solving cooperative problems by their impulse to ...
Scientists find method to pick noncompetitive animals, improve production
...hodology is a roadmap to improving the breeding of domesticated
animals," Muir said. "The tool also could allow us to domesticate more species as readily available food sources, such as cannibalistic shellfish and game fish." ...
Researchers find 6,000-year-old fossil evidence
...to present-day Peru that showed people were eating domesticated
chili peppers as long as 6,000 years ago. This makes chili peppers one of the oldest domesticated
food sources in the Americas. The study will be published in the Feb. 15 edition of the journal Scie...
Mother knows best: Plant knowledge key to childhood health in remote Amazon
...nstruction and food. The Tsimane' rely on wild and domesticated
plants for more than half of their household consumption, while purchased goods account for a tiny fraction of consumption. "Like other remote rural populations around the world, the Tsimane' must rely on their ability to exploit natural resource...
New evidence of early horse domestication
...n northern Kazakhstan has yielded new evidence for domesticated
horses up to 5,600 years ago. The discovery, consisting of phosphorus-enriched soils inside what appear to be the remains of horse corrals beside pit houses, matches what would be expected from Earth once enriched by horse manure. The Krasnyi Yar sit...
Tamed 11,400 years ago, figs were likely first domesticated crop
...re such staples as wheat, barley, and legumes were domesticated
in the region. The discovery dates domesticated
figs to a period some 5,000 years earlier than previously thought, making the fruit trees the oldest...
Female birds boost up their eggs when hearing sexy song
...ttractive control songs of male canaries to female domesticated
canaries. When the females started egg-laying they... selective impact on female physiology. 45 female domesticated
canaries participated in this study that was a collaboration of Royal Holloway, University of London...
Biologists find regions of rice domestication
...ce varieties and have determined that the crop was domesticated
independently at least twice in various Asian loca...or DNA sequences that were shared by both wild and domesticated
types. These two major groups clustered out by geography." DNA is comprised of vast, varied combin...
Value of services performed by insects tops $57 billion in US
...ed and subtracted the value of those pollinated by domesticated
honeybees. For dung burial, they estimated the losses if dung beetles did not clean nearby plants and cattle environments, which would deter cattle from eating the plants and attract more flies and parasites that would have to be controlled. They als...
Invasive exotic plants helped by natural enemies
...y settlers, often times to make room for their own domesticated
and feral herbivores from the old world," said Parker. He also noted that this radical shift in herbivore composition may favor exotic plants over natives. Recent research, including a paper authored by Parker in Ecology Letters last year, suggests...
Study: Competition for sex is a 'jungle out there'
...ling, and alternative resources for pollinators of domesticated
crops world wide," said collaborator Tia-Lynn Ashman, Ph.D., of the University of Pittsburgh. "The concern is that we are losing habitat really rapidly globally, especially in tropical areas, and losing pollinators there as well," Knight said. "We ...
The evolution of food plants: Genetic control of grass flower architecture
...lent model system for studying selection as it was domesticated
from its wild ancestor teosinte a mere 10,000 years ago. Because transcription factors control many developmental processes, it is common to find that diversification of morphology between closely related organisms has involved changes in how transcr...
Expert dispels bird flu paranoia
...owners can minimise risk are: Build pens to keep domesticated
poultry away from wild birds. Stop domesticated
poultry from accessing open ponds, lakes or creeks. Keep domestic waterfowl separate from poultry ...
Wild birds help to create human flu vaccine
...so need to monitor wildlife markets where wild and domesticated
species are kept in close proximity, and risk exposure to a wide range of pathogens. The White House's recently released "National Strategy for Pandemic Influenza" acknowledges the need to "expand and enhance mechanisms for screening and monitoring ...
Ancient humans brought bottle gourds to the Americas from Asia
...standing archaeological enigma by explaining how a domesticated
variant of a species native to Africa ended up mil...from Asia." The researchers say it's possible the domesticated
gourds -- differentiated from wild bottle gourds by a much thicker rind -- were conveyed to North Am...
Seal rookeries could provide a reliable food source for endangered California condors, study finds
...ule deer, feral pigs, whales, seals, sea lions and domesticated
cattle. "The California Department of Transportation even agreed to go around and snip off hair from dead deer killed on the highway," Chamberlain says. "Other people went around picking up samples from dead seals on beaches. We ended up getting an i...
Finding rewrites the evolutionary history of the origin of potatoes
...rchaeological evidence suggests that potatoes were domesticated
from wild relatives by indigenous agriculturalists more than 7,000 years ago, says Spooner. Today, the potato - an international dietary staple - is a major crop in both the United States and in Wisconsin, which is fourth in the nation for potato pr...