Tag: "north" at biology news

Core Spins Faster Than Earth, Scientists Find

...es in Earth's magneticfield, including the way the north and south poles have "wandered"and reversed period... point on Earth's surface up to 10degrees from the north pole, where the spin axis would emerge. TheEarth and the core are rotating on the same spin axis, bu...

Hawaiian Whales Show 'No Overt Response' To Sounds Of ATOC Simulation

... data on whale behavior and distributions off the north shore of Kauai as early as 1993. One condition of federal permits to operate the ATOC sources is that if adverse effects are noted among marine mammals, the experiment will be modified or halted. "ATOC is an important international study that c...

Hibernation: The Opposite of Sleep?

...that live in the Brooks Range of Alaska, 200 miles north of the ArcticCircle. During hibernation a ground squirrel lowers its body temperature below freezing and stays that way for weeks, virtually braindead, with no detectable brain waves or signs of breathing. Once or twice a month, however, it stokes up...

North America Hit Hard By Asteroid Strike In Yucatan 65 Million Years Ago

...the globe. "It was like a nuclear explosion taken north on a jet-powered sleigh ride,"Schultz said. "This was indeed the day the Earth shook." As evidence, the researchers show that the horseshoe-shaped Yucatan cratermatches the structure of craters on the moon and Venus that were created whenobjects stru...

UC Berkeley, U.S.G.S. Scientists Discover Microscopic Invader Of San Francisco Bay, The First Known Marine Microbe Invader Of U.S. Waters

...C Berkeley, also found it in samples taken further north in Marin County waters. Sloan and McGann then looked at many sediment samples collected in earlier years from the bay, to see if they could determine when it first arrived. While they did not find it in any sediment samples which had been collected ...

Bog Beetle, Misidentified For 85 Years, Is 'Discovered' At Cornell

...,600 other beetles species found in North America, north of Mexico, including 60 introduced from other parts of the world. Through study of specimens from museums in the northeastern United States and Canada, Will and Liebherr have found that this beetle's natural range extends from Maine to Ohio and Ontar...

Hot 'Lanta: NASA, School Kids Team To Study How Trees Help Cities Keep Their Cool

... "before and after" pictures. Theaircraft will fly north and south to cover a 30-mile (48 km) square centered on Atlanta. In addition to kids at 10 schools - the heat island experiment will involve water vapor data taken by instruments carriedaloft by balloons, and sunlight measurements from shadow band r...

Beset By Human Competition, Penguins Must Take Marathon Food Trips To Avoid Starvation, A Researcher Finds

... for the Punta Tombo penguins is when they migrate north in April and south in September. The oil-covered carcasses of banded birds from the colony have been found along the coasts of Argentina, Uruguay and Brazil. The UW researcher calls for the creation of marine management zones in which commercial fi...

Scientists To Study Effects Of Global Warming On Wetlands

...lobal warming. "We'll be working at a site north of Duluth, Minnesota, where we'vedesigned experiments to simulate the effect of global warming on natural bogs and fens," said Dr. Jiquan Chen of Michigan Tech's School of Forestry and Wood Products. "We want to see how increased temperatures and mo...

Lethal Parasite Prime Suspect In Fish Kills At Salton Sea

...million dead fish over a three-mile stretch at the north end of the Sea, Department of the Interior officials said. Drs. Tonie Rocke and Lynn Creekmore, scientists from the US Geological Survey's National Wildlife Health Center (Madison, Wis.), conducted a field investigation in lat...

Fossils Show British Columbia Was Once 2,000 Miles South

... huge landmass, he says, must have slipped its way north along agiant crustal fault stretching from California to British Columbia. However,critics say, there is no evidence of such a fault. The UW researcher believesthe fault is certainly extinct, and because it is buried deep in the Earth'scrust, it may ...

Limits Of Life On Earth: Are They The Key To Life On Other Planets?

...Tibetan plateau, the South American Andes, and the north and south polar regions. A project by Lonnie Thompson and Ellen Mosely-Thompson, glaciologists at Ohio State University (OSU), and their colleagues will resuscitate microorganisms from ice cores kept at OSU's Byrd Polar Research Center, and use rec...

Biogenic Emissions Higher Than Expected Over African Savanna

...he savannas of the Central African Republic in the north to the tropical rain forests of the Republic of Congo in the south. A French ARAT research aircraft measured winds, temperatures, water vapor, and radiation from the visible and invisible spectrum, in addition to NOx, ozone, and several other chemic...

SFSU Biologist Deciphers Desert Animals' Whistles And Drumbeats

...n Hole, Wyoming. Last year, in Uzbekistan, north of Afghanistan, Randall established that adult gerbils whistle and stomp far more often and more intensely when young pups are still living at home -- strong evidence that they are trying to communicate an urgent sense of danger to their vulnerable y...

Corn Rootworm Changing Behavior, Posing New Threat To Crops

...97 showed the problem was spreading rapidly to the north and east. Southern counties in Michigan and portions of northwest Ohio also reportedthe beetles' presence last year. The problem does not exist or is minimalwest of the Illinois River and in the southern third of Illinois. The logical conclusion is...

Prairies Will Be Hit Hard By Global Warming

...s earlier. This will force the birds to flyfurther north for acceptable nesting areas. Malcolm says a changing climatecould cause even further upheavals in an ecosystem that has already been heavilyinfluenced by human activities. For example, plants could be under greaterstress in a dry climate, a situatio...

'Mean Gene' Found In Africanized Honey Bees

...ees to go across the Louisiana coast or go farther north in California," Hunt says. "We don't know why they haven't gone there already." Even without further migration, the Africanized bees still could threaten the bee population throughout North America. "In the tropics the defensive behavior gives the be...

Smog Spreading To South Pacific

...plane flew through a plume of smog about 500 miles north of Fijiin which ozone readings reached 131 parts per billion (ppb). The pollution hadtraveled over Australia, with the major contributors of ozone likely coming fromas far away as Africa. Yet, by the time it reached the south seas, Rowlandsaid, "it...

Coastal Development Threatens Rare Atlantic Shorebird

...sing roof-tops but isn't aware of colonies further north that haveadopted this lofty survival strategy. And, at this point, roof-tops are acrucial safety net for the species. A study in Florida showed the terns didn'treturn to sites where graveled roofs had been replaced with vinyl or othermaterials. ...

Biosphere Lessons Can Be Applied To Space, Former Crew Co-Captain Says

...rt systems similar tothe steel and glass structure north of Tucson, Ariz., where eight scientistslived for two years, Silverstone said. Silverstone spoke at symposium on future directions in space lifescience research at a meeting of the Space and Underwater Research Group of theWorld Federation o...

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