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Tag: "currents" at biology news

Living laboratory found on shoreline statues

...f different levels of exposure to the environment, currents and sea level on marine settlements. Research leader, Dr Leonie Robinson, commented: "Although the key facts about barnacle colonisation are well known, it is rare that such a unique opportunity arises to assess all facts together in such a well...

Psst! Coffee drinkers: Fruit flies have something to tell you about caffeine

... fine tools, the research team recorded electrical currents in those cells known to contain the Gr66a caffeine taste receptor in the fly's equivalent of the taste buds - dubbed the taste bristles. Applying sugar to the taste bristles of normal flies, or to mutant flies missing the Gr66a protein, causes the ...

Satellites shed light on global warming

...s the oceanic basins influencing the major oceanic currents and are believed to play a role in the complex ‘planetary clock?that triggers one of the major climatic anomalies ?El Niño. "These waves are an important means of ocean adjustment to forcing. In a sense they ‘set the rhythm?for some aspects of th...

Ocean's 'twilight zone' may be a key to understanding climate change

...ters per day, but they are swept sideways by ocean currents traveling many thousands of meters per day. To collect sinking particles, oceanographers use cones or tubes that hang beneath buoys or float up from sea floor. That, Buesseler said, "is like putting out a rain gauge in a hurricane." While many stu...

Baby fish 'smell their way home'

...ish species are swept off their home reef by ocean currents within days of hatching. Ordinarily you'd expect ... remarkable population differences, braving strong currents and ferocious predators in their 20 days at sea ?all when only a centimeter or so in size. "We te...

Surgeons develop simpler way to cure atrial fibrillation

...he ablation lines redirect the abnormal electrical currents responsible for atrial fibrillation, an irregular heart rhythm in which the upper heart chambers or atria wriggle like a bag of worms. The Cox-maze procedure was developed at the University in 1987. In their latest clinical study, reported in the ...

Why do oysters choose to live where they could be eaten?

.... A series of experiments examining the feeding currents produced by adult oysters and how larvae actively ... on reefs helped solved the puzzle. Oyster feeding currents are actually very weak, so while they will readily eat larvae if captured, settling larvae are just ...

The kapok connection -- Study explains rainforest similarities

...that extreme long distance travel by wind or ocean currents explains how the trees spread from South America to Africa. He plans to continue investigating the role of oceanic dispersal to see if the same is true for other species and for entire plant communities. "This tree has become locally extinct in pa...

Salty oceans provide early warning for climate change

... watch. Palaeoclimate data shows that the ocean’s currents (like the Gulf Stream and its North Atlantic deep water partner) are capable of shifting gears very suddenly, but until now it wasn’t clear how this occurred. Using a combination of modern observations, numerical models and palaeoclimate data scienti...

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