Tag: "winds" at biology news

Integrative approach to studying penguins, cockroaches and little hairy noses makes comparative biomechanics group at UC Berkeley the nation's best

...ssemble to hear about new work and, as the seminar winds down, throw out silly ideas that often lead to great insight. Kram noted how one student mentored by Koehl and Full used his findings on how humans move in reduced gravity -- he had suspended human volunteers from a harness while running -- to predic...

Ancient mediterranean port city may have been holy land way station

... Aperlae in order to take advantage of prevailing winds and currents, he said. Hohlfelder and his students also discovered a "sea gate" in June that led travelers to the two now submerged Aperlae churches. The gate held a small water basin that was probably used by visitors for ritual cleansing before t...

New views of tropical thunderstorms and pollution effects on rainfall presented at AGU meeting

...s, pollution can inhibit rainfall, and upper level winds may determine the characteristics of thunderstorms. Some of these findings give promise to better understanding thunderstorm development, and researchers working with NASAs Tropical Rainfall Measuring Mission (TRMM) satellite will discuss them in a...

Analysis of flight performance in wandering albatrosses yields insights into foraging patterns of different ages and sexes

...ubtropical and tropical waters to the north, where winds are lighter. Fledglings forage farther north in ev...ere has been attributed to the consistently strong winds in the far southern latitudes, where the prevailing westerlies are largely unobstructed by land mass...

Studies: Floyd, other major hurricanes of '99 caused significant changes in nation's largest lagoonal estuary

...cient oxygen could become a problem this summer if winds are minimal and stagnation occurs, he said. Over-abundant algae and other microorganisms that thrive in nitrogen-rich waters can produce low-oxygen conditions that suffocate finfish and shellfish. Co-authors of the new paper are Dr. Jerad D. Bales of...

Study finds wind, currents play key role where young fish settle

...e findings suggest that variations in currents and winds may cause fluctuations in the size of fish populations along the entire Gulf coast. Using a computer model to simulate the exchange of water and fish larvae through Aransas Pass, researchers found that many of the "fish larvae" settled in an area of ...

Ill winds carry toxic dust

...tes Geological Survey, to identify the areas where winds are most likely to pick up dust, carry it through ...the south, passing Tucson en route. During winter, winds originate over the Pacific Ocean, traveling over the Sierra and Cascade Mountain ranges before reach...

Microbes and the dust they ride in on pose potential health risks

...rid topsoil, is transported into the atmosphere by winds and may be carried more than 10,000 feet high into...rchers have shown that from February to April, the winds bring an estimated 280,000 tons per event to 13 million tons per year to the Northeastern Amazon Bas...

Study shows top predator makes prey population vulnerable in catastrophe

...ane Floyd was a Category IV hurricane with maximum winds greater than 150 miles per hour that blew lizards ...ke the eggs deposited more vulnerable to hurricane winds and water. The third explanation suggests that,because the anoles were forced to shift their habita...

Digital organisms used to confirm evolutionary process

...your speed of replication, and the strength of the winds your mutation rate. If there were only a gentle breeze, you would be most fit by climbing to the highest peak you can. But in a more turbulent hurricane, you would want to find someplace where there is not such a long distance to fall - someplace f...

Battle to save last stronghold of the red squirrel

...er trees are at risk of being blown down by strong winds which rip their shallow roots out of the peaty forest soil. Suggested plans to replace the felled trees with oak in parts of Kidland forest would also have affected the survival of the red squirrel. Broadleaf trees like oak are a source of food fo...

PNNL captures first bird's-eye view of Puget Sound air pollution

...ons with an inversion aloft and weak northwesterly winds trap pollution against the Cascades. Also, ozone levels peak in summer months due to the increased sunlight and warm temperatures needed for its formation. The study's timing also enables the team to coordinate with a simultaneous Canadian air qualit...

Dust from Africa leads to large toxic algae blooms in Gulf of Mexico, study finds

...fine particles in the arid topsoil. Easterly trade winds carry the dust across the Atlantic Ocean and into the Gulf of Mexico. "Because iron is one of the most common elements in most soils, a certain percentage of the dust contains iron," said Lenes. The study used satellite and ground based measurements...

Mountain cloud forests imperiled by lowland deforestation, says Science study

...he Caribbean form where mountain peaks force trade winds up past the point where clouds condense, leaving t...s--the place where clouds first form. As Caribbean winds pass over these areas, the amount of moisture and heat transferred from the lowland surface to the a...

Prescribed burning: Do we really know what we're doing?

...alifornia'slarge fires are driven high "Santa Ana" winds and are not stopped byyoung chaparral patches, says Keeley. This view is supported by the fact that despite active firesuppression, the area that has burned in recent decades hasremained constant or increased, say Keeley and C.J. Fotheringhamof the U...

Researchers create simulation of chemical/biological release in Salt Lake City as precautionary measure

...tly how the layers of wind are blowing and how the winds will shift. The Salt Lake City simulation makes adjustments for how the buildings will block and channel the flow between them along street "canyons" (such as those found on downtown streets between high-rise buildings). The simulation program, whi...

A feast of lobsters

... The method depends on studying ocean currents and winds to forecast the number of baby lobsters that will be swept in from the open sea to settle on the coast. Changes in these conditions can cause settlement by larval lobsters to fluctuate as much as fivefold. In WA a clear correlation between natural c...

Wolves decline, moose increase

...rease in tick infestation of moose," he said. High winds in December also caused a large blow-down of the balsam firs on the western half of the island. The moose prefer these for food. "We lost 16 percent of the fir trees on the western half this winter," he said. "In the last 13 years, about three-quarte...

Massive icebergs may affect Antarctic sea life and food chain

...ed the normal drift of packice. Normally, when the winds shift, ice is carried out intothe Ross Sea, creati...ice drifts out of the Ross Sea. In the springtime, winds shift in the area of the Ross Seaand clear away sea ice, forming the Ross Sea polynya (an areaof ope...

Big fish not always best, sounds might mean hurricanes and Hawaii tsunami safety

...ocean, could record the sound associated with high winds and then provide accurate information about the hurricane's power. The research includes both modeling and at-sea experiments using hydrophones. First, Makris and his team developed a model for application in high- risk parts of the world, like th...

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