Tag: "herds" at biology news

New bulls may revive the Texas state Bison Herd

...ready were sampling the DNA from the federal bison herds throughout the United States for another project, ...tly less genetic variation than any of the federal herds and most any of the other state and private herds," he said. This led them to conclude the herd was...

Study in Royal Society journal on first evidence for magnetic field detection in sharks

...ndent foraging rules for social animals in selfish herds by Dr SA Rands, Dr R A Pettifor, Dr J M Rowcliffe ...s formed, and shows that the complex behaviours of herds can emerge from simple rules followed by each group-member. Contact: Dr Sean Rands, Department of Zo...

Flocking together: Study shows how animal groups find their way

...t allows flocking birds, schooling fish or running herds to travel in unison without any recognized leaders or signaling system. The finding, published in the Feb. 3 issue of Nature, helps settle age-old questions about how animals coordinate their actions. Previously, scientists had looked for subtle sign...

Experiments provide proof of how traveling in groups protects insects

... of wildebeests and other hoofed mammals that form herds and migrate across the African plains. Countless millions of Mormon crickets and young locusts also sometimes unite with their own kind and form teeming, hungry islands of life that devour everything in their path that's edible. Some spectacular marc...

The secret lives of whales

...d other researchers have been thinking about whale herds at the wrong scales, which has been constrained by the limitations of their recording and visual observation abilities. Suddenly you realize that the whales sense of scale is ocean basin sized one song note is 20 miles long and can illuminate the ent...

Technological revolutions in sensors, robotics, and telecommunications allow new views of ocean

... following a storm during one of our trips, we saw herds of hundreds and hundreds of fish moving across the reef fish that are typically solitary or paired," says Lindholm. "We would never have seen this if we weren't there." Lindholm's group works with popular reef fish grouper, snapper, and parrotfish...

Vampire bats keep out of trouble by running

...o a running gait. With the introduction of large herds of livestock into their native environments of Central and South America, these bats don't need to hurry to catch the cattle from which they extract perhaps a tablespoon of blood at a time for sustenance. They feed while their prey are sleeping, spen...

UF researcher: Ideas about fossil horses undergo evolution in thinking

... New World in the 1500s, eventually producing vast herds of wild horses on the prairies and helping to create America's legendary cowboys, MacFadden said. But the fossil record shows horses actually originated in North America at least 55 million years ago and roamed the continent before becoming extinct a...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...round-the-clock tests designed to see how elephant herds respond when specific calls are played back throug...is a common behavior in the wild, even among large herds of 20 or more. Remaining motionless seems to enable elephants to focus their keen senses of smell an...

Lactose intolerance linked to ancestral environment

...eople whose ancestors came from places where dairy herds could be raised safely and economically, such as i...specially with the difficulty in maintaining dairy herds safely and economically. A major challenge in interpreting the data, Sherman noted, was to resolve ...

New partnership to clear landmines for African elephants

...ill be cleared of landmines to allow huge elephant herds to resume their normal spread in southern Africa, Roots of Peace (RoP) and Conservation International (CI) announced today. The U.S.-based non-profit organizations are partners in a project to remove landmines sown during Angola's 26-year civil war f...

First ever study to investigate impact of chronic wasting disease on humans

... Recently discovered in both wild and captive deer herds in New York, CWD is similar to mad cow disease in ...o report CWD in both privately owned and wild deer herds found in parts of Oneida County. Most recently in September, West Virginia reported its first cases ...

UC Davis expert writes key report on controversial UK badger killings

...ers, combined with increased ranging, meant cattle herds encountered more badgers than they might if none had been killed at all. The researchers concluded that on the geographic scales tested (up to 100 square kilometers, or 37 square miles), the negative effects of culling greatly outweighed the benefits...

Researchers explain why badger culling fails to control cattle TB

...nough that, despite this increased ranging, cattle herds encounter few badgers. However, localised culling... but reduces density only slightly, so that cattle herds potentially encounter more badgers than in areas without culling. These effects also help to explain...

Bringing the zoos to the zebras

...rning, highlighting the problem of coexisting with herds of livestock outside the conservancy that occupy waterholes during the daylight hours. By having to wait until dusk to drink, Grevy's zebras face elevated risks of predation." In March, two zookeepers from Saint Louis Zoo, two from San Diego Zoo, and...

Emerging disease risks prompt scientists to call

...isms. They serve as contact nodes between infected herds and the ease of transportation can result in the widespread dissemination of animals that have been in contact in a market. Contact points such as quarantine facilities, markets and ports of entry can also result in the transmission of agents between...

Ocean virus identified in human blood samples

... to Vesivirus, with antibody prevalence in various herds ranging from zero to 80 percent. It concluded that Vesivirus infection in cattle is widespread, and in various studies has been "associated" identified to be statistically relevant but not yet proven as a cause - with abortion, diarrhea, severe resp...

Rare Tibetan antelope listed as endangered

...iru. With that, and its full protection, the vast herds of the past could once again roam the Tibetan uplands," Dr. Schaller said....

Farm study raises doubts about new approach to swine-disease control

... an effective method for controlling PRRS virus in herds where the virus is endemic." The privately owned farm involved in the study had suffered from chronic PRRS infection for more than five years before the project was conducted in 2003-2004. The study -- funded by the U.S. Department of Agriculture -- ...

Transgenic goat's milk offers hope for tackling children's intestinal disease

...powdered milk and eventually transgenic dairy goat herds for developing nations, where intestinal diseases threaten the lives of infants and children. They project that the potential for even more widespread benefit could be realized if this technology is applied to dairy cattle, rather than goats, because...

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(Date:4/17/2014)... If a restaurant ... he can expect his premises to be trashed. Warnings like ... is enough to make restaurant owners pay up. Similarly, mafia-like ... in other birds, nests. If the host birds throw the ... destroying the entire nest. Consequently, it is beneficial for hosts ...
(Date:4/17/2014)... IPCC meeting painted a stark warning on the possible ... a greenhouse effect 32 times that of carbon dioxide. ... humic substances act as fully regenerable electron acceptors which ... in wetlands instead of being released to the atmosphere. ... disrupted it may enter into a vicious cycle to ...
(Date:4/17/2014)... wild animals and plant life, but there,s an invisible ... in the soil, decomposing organic matter and releasing carbon ... fungi play in ecological systems, their identities have only ... generated a genetic map of more than 10,000 species ... this week in the Proceedings of the National ...
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