Tag: "dive" at biology news

New understanding of crab populations may not bring fishermen's delight

...ersity of Helsinki, Finland. Population sizes can dive and soar dramatically, sometimes without apparentcause. Trying to figure out what drives the big swings is a question thathas taunted researchers for years. In fact, one of the most important andfiercest debates in population biology swirls around wh...

Discovery Channel Returns From Underwater Scientific Expedition Off The Coast Of Cuba

...first outsiders since the mid-1950s to do so), and dive the sea bottom amid shipwrecks from the past. The expedition and the resulting discoveries will be the subject of two Discovery Channel one-hour documentaries tentatively titled FORBIDDEN DEPTHS (WT) and slated to air on Discovery Channel in early ...

SFSU Biologist Deciphers Desert Animals' Whistles And Drumbeats

...to recognize the differences. For example, vervets dive for cover when the signal is "Eagle!" but scramble up a tree if the danger is a cheetah. Randall's research has been supported by the National Geographic Society and the National Science Foundation....

Coastal Development Threatens Rare Atlantic Shorebird

...y1940s coastal development caused their numbers to dive again. Though already listed as "rare," meaning monitored but not protected,the Atlantic least tern has faired slightly better than its cousins, theinterior and the California least terns. Both are threatened due to habitatloss. Schwe...

New Study Shows Group Of Marine Bacteria Dominate Offshore Waters Of Southeast, May Play Key Role In Ecosystem Processes

...largelyunknown. Researchers have been reluctant to dive into the vast array of marinebacteria because they are devilishly hard to culture in laboratories. And eventhe ones that have been grown often are unrelated to the bacteria that areecologically important in marine ecosystems, making scientific connec...

Teaching Great White Sharks To Link People With Food Is A Recipe For Disaster

...ny of seals, their favourite prey. If the dive operators all acted responsibly, this melee might ...can waterssince 1960. But if the activities of the dive operators are not curtailed,biologists fear that tourism-linked great white attacks are inevitable. ...

Bleached Coral Could Be Environment Warning

...dergraduate researchers,including Alisa Alker, who dive from NOAA vessels and return to the laboratoryto perform biological assays of coral samples. "With a very few exceptions, we know so little about the pathogenic organisms that are affecting the coral reefs," Harvell said. "We don't know if new di...

Largest Acoustics Meeting In History Expected

...adapted in the approximately 5 minutes it takes to dive froma bright surface to a depth of 500 meters. (4aABb5) --- Sound Waves Reveal Intense Turbulence in Middle Atmosphere. Computer models for forecasting weather have improved so greatly in resolution and sophistication that they call for similar impr...

Harbor Branch Web Developers Bring Adventures @Sea To Every Desktop

...oll on location in Brazil, as he readieshimself to dive with the sharks for the @Sea website! @Sea will open a window on the ocean realm for students, educators, scientists,the media, funding agencies, and policy-makers. @Sea is a production of TheMedia Lab of Harbor Branch Oceanographic Institution. ...

Harbor Branch Web Developers Team With ABC News To Bring Ocean Adventure To A Computer Near You

...oll on location in Brazil, as he readieshimself to dive with the sharks for the @Sea® website! @Sea® will open a window on the ocean realm for students, educators, scientists,the media, funding agencies, and policy-makers. Online expeditions will raisepublic awareness of threats facing the mar...

Bugs Can Ward Off The 'Bends'

...imulate the effects of ascending from a three-hour dive at around 240 metresbelow the surface. Pigs that were not given the bacterial cultures were nearly twice aslikely to show symptoms of decompression sickness. The treated pigs were alsomore flatulent, releasing large quantities of methane-and ...

Divers may soon wax lyrical about some new hot installation -- The water's fine

...lasts for about the first half an hour or soof the dive (Ocean Engineering, vol 26, p 547), but the US Navy wants to improveon that, says Lew Nuckols, of the US Naval Academy in Annapolis, the Navyscientist developing the suit. He is looking at various ways of extending thewarming period, such as packing ...

When sperm whales talk, UW researcher listens

...whales, descending thousands of meters in a single dive and staying submerged for as long as two hours at a time. "They spend most of their time underwater - about 83 percent of the time," Dougherty said. "When they come up, it might be a considerable distance from where they went down and it's hard to g...

Seal sensors

...te ocean areas where existing data is sparse. They dive 600 metres down, giving excellent depth coverage. "We are collaborating to take advantage of all this data," says Boehlert. He and his colleagues are already using seal data to study ocean fronts in the northeastern Pacific. During one three-month p...

Studies of marine mammals indicate a "breathtaking" ability to dive to great depths

...s in the abilities of a range of marine mammals to dive almost effortlessly to great depths. In addition to Weddells, other research teams studied the behavior of a northern elephant seal diving in Monterey Bay, Calif., a trained bottlenose dolphin diving offshore of San Diego, and a 100-ton blue whale t...

Pigs at sea reveal latest clues in homicide research

...25-50 metres. Since they were dropped Anderson and dive crews have been out to sea about a dozen times. ...g on spots where the condition occurs. "Every dive is telling us something new," says Anderson. "Once we learn what kind of activity is taking place we...

Birds of prey spiralling to a kill

Why airborne hunters don't dive straight in THE mystery of why birds of prey spiral in towards their victims may have been solved. They do it to make the most of their pin-sharp sideways vision, according to an American biologist. Vance Tucker of Duke University in North Carolin...

Elephant seals - looking good

...eir time in the water, migrate thousands of miles, dive to depths over a mile down and remain submerged for as long as 120 minutes. With statistics like those, if these seals could talk, they would bring us a wealth of ocean information. So, scientists at the University of California at Santa Cruz did the...

7,000 feet under the Sea: LSU scientists take geology to great depths

...wreckage of the Titanic in 1986. Alvin, which can dive some 15,000 feet and stay submerged for up to nine hours, is owned and operated by the Woods Hole Oceanographic Institution of Cape Cod, Mass. The sub, just over 23 feet long, 12 feet high and 8 feet wide, can hold one pilot and two scientists per m...

Scientists see early indications of lobster decline

...uccessive stages. Larval lobsters in coastal zones dive to become the new year-class of lobsters on the bottom, and if these lobsters survive, they become juvenile lobsters and eventually future landings of adult lobsters. "It's similar to counting the number of seeds you sow in your garden and finding th...

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(Date:10/25/2014)... HealthDay Reporter FRIDAY, Oct. 24, 2014 (HealthDay ... herpes simplex -- might increase the risk of Alzheimer,s disease, ... a carrier of certain antibodies to the virus can double ... "The identification of a treatable cause [herpes simplex] of the ... Dr. Hugo Lovheim, an associate professor in the department of ...
(Date:10/25/2014)... Current osteoporosis screening guidelines and tools fail to ... osteoporosis-related fractures, a new study says. "If ... that help us accurately predict who will suffer ... these at-risk people for preventive measures," study author ... division of general internal medicine and health services ...
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