Tag: "season" at biology news

UMass virologist publishes book on "The Real Science Behind 'The X-Files'"

...iroccasional phone calls, five or six scripts each season are express-mailed toSimon, who reads them, then discusses changes with Carter. "Just a word or two,just a sentence can make a big difference." "I wrote this book for my parents; very intelligent people with no sciencebackground at all," says Simon,...

Testosterone, stress may not suppress immune system after all

...rred females. Males get more woundsduring breeding season than any other time of the year. Braude and other... thinkthe high testosterone levels during breeding season may serve to prime theanimals' immune systems to defend against a wound. "The short take is that tes...

Threats to health reduced with Bt corn hybrids

...ire 12 or moreinsecticide applications in a single season for the production of sweet corn forfresh market sales." Controversy over production and use of genetically modified crop cultivars hasfocused a great deal of public attention on Bt corn. "Debate surrounding the useof genetically modified crops shoul...

Search and support for the rare white abalone is on; sex must occur with close neighbors

...-- asingle female can produce 10 million eggs in a season -- and drive it toextinction through fishing," said Gary Davis, a senior scientist at the ChannelIslands National Park. Unfortunately, the basic husbandry for culturing white abalone is notknown, according to Daniel E. Morse, professor of bio...

On the floor of the sea: USGS biologists search for rare, white abalone

... - a single femalecan produce 10 million eggs in a season - and drive it to extinction throughfishing," said Gary Davis, a senior scientist at the Channel Islands NationalPark. Next week, a determined group of university, government and private biologistsis setting out in a two-person submersible to cruise ...

Desert bees hedge their bets, wait for the wet

...d like the desert's floral seeds waiting for their season in the sun, scientists have learned that the desert bees have adopted a patient reproductive strategy. Desert bee larvae patiently lie in wait in the desert soil for a chance to emerge, usually after a year or more. Scientists call this process "dia...

Team led by MSU biologist finds bacteria deep in Antarctic ice

...riscu saidbefore leaving Montana for another field season on the frozen continent. "Our findings indicatethat the microbial world has few limits on our planet." Priscu's team, along with two other groups studying Vostok ice, will publish its findingsin the Dec. 10 issue of the journal Science. The team ...

Colorado State researcher thinks Groundhog Day is about fatty acids rather than traditional tricks of light and shadow

...rmots and other hibernating animals spend the warm season gorging on leafy plants, seeds and nuts that contain varying amounts of these fatty acids. Autumnal temperature drops trigger a series of physiological events that can cause hibernation. The 2000 Fulbright award is Florant's second and one of only t...

New USGS research shows how land use affects amphibians

...oad species spend part or all of their nonbreeding season in trees, shrubs, or heavy litter, not wetlands, Knutson said. The habitat quality of forests may be just as important as wetlands for these species. The structure of trees, shrubs, and underbrush in a forest creates diverse habitats with many niches...

New UNC analysis of N.C. accident records shows growth in motor vehicle-deer crashes

...ents are more roads and gunfire during the hunting season that keeps the animals moving, he said. "Between summer and fall, the deer diet changes as well," Osborn said. "They go from eating chiefly grass and leaves to acorns, corn and other crops. That carbohydrate diet gives them more energy and makes the...

Study finds children are exposed to pesticides

... Washington state were exposed during the spraying season to pesticide levels that exceeded federal safety levels, according to UW researchers. That's even though the children themselves do not work in the fields. These levels were estimated from concentrations of pesticide breakdown products in urine, an...

The hair of the bear: USGS releases grizzly bear numbers in Glacier National Park

... genotyping its DNA. This year is the final field season of Kendall's DNA study of bears in the Glacier National Park Ecosystem. Between now and fall, another round of hair trapping and rub tree surveys will snag bear hair that, when genotyped, will allow Kendall to estimate the survival rate of bears betw...

To combat poaching, Florida officials use wildlife forensics

...aching cases. Unlike the lengthy buck season, doe season on Florida's public lands lasts only two days. In several instances, game officers have sent the lab samples of fresh venison confiscated from hunters on suspicion it came from does killed out of season. Officers also have given the lab clothing stai...

Double crops, cut the acreage by 2010, predicts plant scientist

...us would be that by planting two crops per growing season each year, U.S. farmers could take much of the nation's 320 million acres of farm land out of production, creating millions of new acres of wildlife habitat. "A couple of years ago I wouldn't have predicted this," Bressan says. "But within a decade i...

NSF-funded researchers discover evidence of microscopic life at the South Pole

...le to duplicate the observations in a second field season during January 2000." Antarctica was once part of a supercontinent called Gondwanaland and drifted into its present position only about 60 million years ago. Deinococcus, however, is thought to be one of the earlier branches in the bacterial tree,...

Canadian scientists find potent antifreeze protein that equips insects to brave winter

...plants frost resistant and extend both the growing season and the geographic areas in which crops can be grown. They may also represent a breakthrough for the frozen food industry. "By controlling the size of ice crystals in frozen foods, you can extend the shelf life of these products," Dr. Davies says. ...

Ancient mediterranean port city may have been holy land way station

...d Aperlae in the 1970s. One highlight of the 1996 season was the discovery of three large, rectangular bric...e, College of Arts, participated in the 2000 field season by producing watercolor drawings of the submerged and standing architecture at Aperlae. "This is a ...

Soybean pest native to China detected in U.S. for first time

... often where the soybeans were planted late in the season -- the plants develop crinkled or cupped leaves and they may yellow." The soybean crop has become an increasingly important part of Wisconsin's diverse agricultural economy. Growers in the state harvested one million acres of soybeans for the first t...

Terra spacecraft and ER-2 aircraft begin study of Southern Africa's environment

...component of air pollution. During the current dry season in Southern African, thick haze is produced by the burning of vegetation and industrial pollution sources. This haze can last for weeks over the region. "I am quite pleased with the first coordinated flight of the ER-2 and Terra today," said Michael...

New crop protection method could save US farmers billions

...ince the blight hits toward the end of the growing season right before the harvest," he explains. "Resistant wheat varieties are only partially resistant -- nothing that can be considered immune." In collaboration with Naseem Kahn, Ph.D., and professor Michael Boehm, Ph.D., both of Ohio State University, S...

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