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| Ecology articles |
Bumblebee see, bumblebee do
Just as travelers figure out which restaurant is good by the numbers of cars in the parking lot, bumblebees decide which flowers to visit by seeing which ones already have bee visitors.
The white giraffe
What do an African researcher and the fictional character Captain Ahab have in common? Both were searching for a legendary white beast, and whereas Ahab searched for his white whale, Wildlife Conservation Society (WCS) researcher Charles Foley sought—and finally found—his white giraffe.
Scientists must offer solutions for conserving tropical forests
As human populations and their impacts on the world increase, tropical forests are changing in many different ways. Forests are being cleared, burned, logged, fragmented, and overhunted and an unprecedented pace, and they are also being altered in insidious ways by global climatic and atmospheric changes.
Chernobyl: the true scale of the accident
A total of up to four thousand people could eventually die of radiation exposure from the Chernobyl nuclear power plant (NPP) accident nearly 20 years ago, an international team of more than 100 scientists has concluded.
Vegetation growth may quickly raise arctic temperatures
Warming in the Arctic is stimulating the growth of vegetation and could affect the delicate energy balance there, causing an additional climate warming of several degrees over the next few decades.
Can ancient rocks yield clues about catastrophes like hurricane Katrina?
An oxygen-free ocean from bottom to surface is probably the worst scenario that marine higher life can experience. Are processes and feedbacks linking the atmosphere to the deep ocean capable to cause a rapid change from an oxygen-rich to an oxygen-free deep ocean? And what are the consequences for the global carbon cycle that ultimately drive marine and terrestrial ecosystems and climate variation?
Calculations favor reducing atmosphere for early Earth
Using primitive meteorites called chondrites as their models, earth and planetary scientists at Washington University in St. Louis have performed outgassing calculations and shown that the early Earth's atmosphere was a reducing one, chock full of methane, ammonia, hydrogen and water vapor.
Climate change will affect carbon sequestration in oceans
An Earth System model developed by researchers at the University of Illinois at Urbana-Champaign indicates that the best location to store carbon dioxide in the deep ocean will change with climate change.
Ocean instrument program set to achieve world coverage
The Global Drifter Program (GDP), largely led by Scripps Institution of Oceanography at the University of California, San Diego, and Scripps Distinguished Professor Peter Niiler, met its lofty goal of blanketing the globe on Sept. 18 when the program's 1,250th instrument was dropped in the ocean off Halifax, Nova Scotia, Canada.
New plant finds in Andes foretell of ancient climate change
For the third time in as many years, glaciologist Lonnie Thompson has returned from an Andean ice field in Peru with samples from beds of ancient plants exposed for the first time in perhaps as much as 6,500 years.
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Satellites spot mighty Mississippi - in the Atlantic
Scientists using satellite imagery found that at least 23 percent of the water released from the mouth of the Mississippi River from July through September 2004 traveled quite a distance - into the Gulf of Mexico, around the Florida Keys, and into the Atlantic Ocean.
Hurricanes are getting stronger
The number of Category 4 and 5 hurricanes worldwide has nearly doubled over the past 35 years, even though the total number of hurricanes has dropped since the 1990s, according to a study by researchers at the Georgia Institute of Technology and the National Center for Atmospheric Research (NCAR). The shift occurred as global sea surface temperatures have increased over the same period.
The Antarctic ocean floor
The biodiversity of the seas and the ocean floors is a mystery for science yet to unravel. With this curiosity, a research team – including a biologist from the University of the Basque Country, is to set sail for the second time on an oceanographic campaign to study this biodiversity of the seas and the ocean floors of the Antarctic.
Global action plan to save amphibians
A summit of leading scientists have agreed to an action plan intended to save hundreds of frogs, salamanders and other amphibians facing extinction from familiar threats such as pollution and habitat destruction, as well as a little-known fungus wiping out their populations.
Ants create devil's gardens in the amazon rainforest
For the first time, scientists have identified an ant species that produces its own natural herbicide to poison unwanted plants.
Weather model advances hurricane intensity prediction
An advanced research weather model run by the National Center for Atmospheric Research (NCAR) has followed Hurricane Rita to give scientists a taste of how well forecast models of the future may predict hurricane track, intensity, and important rain and wind features.
Marine bacterium suspected to play role in global carbon and nitrogen cycles
Scientists are now revisiting, and perhaps revising, their thinking about how Archaea, an ancient kingdom of single-celled microorganisms, are involved in maintaining the global balance of nitrogen and carbon. Researchers have discovered the first Archaea known to oxidize ammonia for energy and metabolize carbon dioxide by successfully growing the tentatively named, Nitrosopumilus maritimus, in the lab.
Displaced songbirds navigate in the high Arctic
By experimentally relocating migratory white-crowned sparrows (Zonotrichia leucophrys gambelii) from their breeding area in the Canadian Northwest Territories to regions at and around the magnetic North Pole, researchers have gained new insight into how birds navigate in the high Arctic. In particular, the findings aid our understanding of how birds might determine longitudinal information--a challenging task, especially at the earth's poles.
Hybrid grass may prove to be valuable fuel source
Giant Miscanthus (Miscanthus x giganteus), a hybrid grass that can grow 13 feet high, may be a valuable renewable fuel source for the future, researchers at the University of Illinois at Urbana-Champaign say.
Scientists explain gaps in nutrient availability within North Atlantic
Duke University oceanographers have developed an explanation for why a vast North Atlantic circulation zone can have a large variability in nutrient supplies needed to sustain ocean plants and, by extension, support the food web of marine life.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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