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| Ecology articles |
Experiment suggests limitations to carbon dioxide 'tree banking'
While 10 years of bathing North Carolina pine tree stands with extra carbon dioxide did allow the trees to grow more tissue, only those pines receiving the most water and nutrients were able to store significant amounts of carbon that could offset the effects of global warming, scientists told a national meeting of the Ecological Society of America (ESA).
Locked in glaciers, ancient microbes may return to life
The DNA of ancient microorganisms, long frozen in glaciers, may return to life as the glaciers melt, according to a paper published online in the Proceedings of the National Academy of Sciences by scientists at Rutgers, The State University of New Jersey, and Boston University.
See what you're spewing as you speed along
In future drivers may only have to glance at the dashboard to see the pollution spewing out of their vehicle's exhausts.
Stability and diversity in ecosystems
Is biodiversity important for predicting human impacts on ecosystems? If diverse ecosystems were as a consequence more stable, the answer would be yes.
Lost forest yields several new species
An expedition led by the Wildlife Conservation Society (WCS) to a remote corner of the eastern Democratic Republic of Congo has uncovered unique forests which, so far, have been found to contain six animal species new to science: a bat, a rodent, two shrews, and two frogs. The forested region—including the Misotshi-Kabogo Forest (formerly Mt. Kabobo)—and nearby Marunga Massif is located just west of Lake Tanganyika and has been off limits to scientists since 1960 as a result of continued instability in the area.
Comet may have exploded over north america 13,000 years ago
New scientific findings suggest that a large comet may have exploded over North America 12,900 years ago, explaining riddles that scientists have wrestled with for decades, including an abrupt cooling of much of the planet and the extinction of large mammals.
Irrigation may not cool the globe in the future
Irrigation's influence on climate is often overlooked when studying the human effect on regional climate change. Yet, irrigation has expanded rapidly in many parts of the world and understanding its influence helps to explain historical trends and to improve climate projections in those regions.
All change at the earth's core
It is hard to know what is going on over 3000 km beneath our feet, but until recently scientists were fairly confident that they understood the way the iron atoms in the Earth's core packed together. However, new research has overturned conventional thinking and revealed that the structure of the core is not as straightforward as was once thought.
Keeping the earth's plates oiled
Earth's surface is a very active place; its plates are forever jiggling around, rearranging themselves into new configurations. Continents collide and mountains arise, oceans slide beneath continents and volcanoes spew. As far as we know Earth's restless surface is unique to the planets in our solar system. So what is it that keeps Earth's plates oiled and on the move?
Organisms in canadian mine
Scientists have suspected that the three known domains of life -- eukaryotes, bacteria, and archaea -- branched off and went their separate ways around three billion years ago. But pinning down the time of that split has been an elusive task.
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Geologists search for prehistoric high
Not all areas of the Tibetan Plateau rose at the same time, according to researchers who are determining the past elevation of plateau locations by studying the remains of terrestrial plants that once grew there.
Climate change goes underground
Climate change, a recent "hot topic" when studying the atmosphere, oceans, and Earth's surface; however, the study of another important factor to this global phenomenon is still very much "underground." Few scientists are looking deep enough to see the possible effects of climate change on groundwater systems. Little is known about how soil, subsurface waters, and groundwater are responding to climate change.
Nasty bacteria need sunlight to do their worst
Certain types of bacteria have sunlight-sensing molecules similar to those found in plants, according to a new study. Surprisingly, at least one species—responsible for causing the flu-like disorder Brucellosis—needs light to maximize its virulence. The work suggests an entirely new model for bacterial virulence based on light sensitivity.
Study takes first look at toxic air pollution in urban parking garages
The pollution produced by light trucks, SUVs and minivans is only half a percent higher than that produced by conventional cars, based on a recent study.
Strong evidence points to earths proximity to sun as ice age trigger
When do ice ages begin? In June, of course. Analysis of Antarctic ice cores led by Kenji Kawamura, a visiting scientist at Scripps Institution of Oceanography, UC San Diego, shows that the last four great ice age cycles began when Earth's distance from the sun during its annual orbit became great enough to prevent summertime melts of glacial ice. The absence of those melts allowed buildups of the ice over periods of time that would become characterized as glacial periods.
NASA satellites eye coastal water quality
Armed with data from two NASA satellites, researchers have invented a way to map the fleeting changes in coastal water quality from space - something that has long evaded researchers and coastal managers relying only on ground-based measurements.
Volcanoes key to earth's oxygen atmosphere
A switch from predominantly undersea volcanoes to a mix of undersea and terrestrial ones shifted the Earth's atmosphere from devoid of oxygen to one with free oxygen, according to geologists.
Gorillas classified as critically endangered
The World Conservation Union (IUCN) has released its newly revised Red List of Threatened Species. One notable change is the elevation of western gorillas to the highest threat status, Critically Endangered. The rise in status is attributed to uncontrolled poaching and massive outbreaks of the lethal Ebola virus, which has killed about one third of gorillas in protected areas over the last fifteen years.
Scientists say no large northern hemisphere ice sheets 41 million years ago
New research to test global ice volume approximately 41.6 million years ago shows that ice caps at this time, if they existed at all, would have been small and easily accommodated on Antarctica.
Increase in atmospheric moisture tied to human activities
Observations and climate model results confirm that human-induced warming of the planet is having a pronounced effect on the atmosphere's total moisture content.
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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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