Ecosystems Current Events | Ecosystems News | 3
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A plan for reintroducing megafauna to North America
Dozens of megafauna (large animals over 100 pounds) - such as giant tortoises, horses, elephants, and cheetah - went extinct in North America13,000 years ago during the end of the Pleistocene. view more (2006-10-03)
Brown Scientists Say Biodiversity Is Crucial to Ecosystem Productivity
In the first experiment involving a natural environment, scientists at Brown University have shown that richer plant diversity significantly enhances an ecosystem's productivity. view more (2008-04-25)
Catastrophic shift in species diversity and productivity of an ecosystem
Ecology and environmental management is largely predicated on the view that ecosystems respond to environmental changes in a smooth and straightforward way. However, in Ecology Letters, May, Schmitz reports on a long-term field experiment that may prompt a hard, critical look at this reigning view. In the experimental system, top predators... view more... (2004-05-04)
Nitrogen pollution boosts plant growth in tropics by 20 percent
A study by UC Irvine ecologists finds that excess nitrogen in tropical forests boosts plant growth by an average of 20 percent, countering the belief that such forests would not respond to nitrogen pollution. view more (2008-02-07)
Environmental lessons from tsunami as world's coastal population doubles
Coastal populations and ecosystems are more likely to bounce back from extreme coastal disasters by protecting local environments and building on local knowledge, according to a report published in Science. view more (2005-08-12)
Changing ocean conditions led to decline in Alaska's sea lion population
A new study out of Alaska points out the impacts of climate change on marine ecosystems, and the need for increased research and stronger science based management to address future concerns. view more (2007-03-23)
Bacteria for plague control in agriculture
Bacillus thuringiensis, a spore bacteria discovered in 1901 by the Japanese scientist Ishiwata and, ten years later, by the German scientist Berliner came across his findings. It is the micro-organism most used as a bio-insecticide throughout the world. It is a bacterium found naturally in ecosystems, frequently on floors and on the surface of... view more... (2003-02-14)
NAU researchers chirping over discovery of new cricket genus
A Northern Arizona University doctoral candidate and a National Park Service researcher have discovered a new genus of cave cricket. view more (2006-05-08)
Insect population growth likely accelerated by warmer climate
Insects have proven to be highly adaptable organisms, able through evolution to cope with a variety of environmental changes, including relatively recent changes in the world's climate. But like something out of a scary Halloween tale, new University of Washington research suggests insects' ability to adapt to warmer temperatures carries an... view more... (2006-10-31)
Lichens function as indicators of nitrogen pollution in forests
Scientists have found lichens can give insight into nitrogen air pollution effects on Sierra Nevada and San Bernardino mountain ecosystems, and protecting them provides safeguards for less sensitive species. view more (2008-10-07)
At the root of nutrient limitation, ecosystems are not as different as they seem
Anyone who has thrown a backyard barbecue knows that hot dogs are inexplicably packaged in different numbers than buns - eight hot dogs per pack versus 10 hot dog buns. Put in ecological terms, this means that weenie roasts are "hot-dog limited" - the extra buns are worthless without hot dogs to fill them. view more (2007-11-09)
First map of threats to marine ecosystems shows all the world's oceans are affected
As vast and far-reaching as the world's oceans are, every square kilometer is affected by human activities, according to a study in the journal Science by researchers at the University of North Carolina at Chapel Hill and others. view more (2008-02-15)
Climate variability impacts the deep sea
Deep-sea ecosystems occupying 60% of the Earth's surface could be vulnerable to the effects of global warming warn scientists writing in the Proceedings of the National Academy of Sciences. view more (2009-11-03)
CBEN: Buckyball aggregates are soluble, antibacterial
In some of the first research to probe how buckyballs will interact with natural ecosystems, Rice University's Center for Biological and Environmental Nanotechnology finds that the molecules spontaneously clump together upon contact with water, forming nanoparticles that are both soluble and toxic to bacteria. view more (2005-06-23)
Dutch ecologists plea for scientific research to aid risk assessment
A survey among nine prominent Dutch ecologists has identified gaps in knowledge on the potential effects of Bt-crops on food chains and ecosystems. Bt-crops have been modified to express a bacterial gene that codes for a toxin that kills certain groups of insects. The toxin is continuously produced in all plant tissues and target as well as... view more... (2003-08-28)
Coral reefs inspire rare consensus -- just save them
One of the first set of studies to examine what tourists and recreation enthusiasts actually think about coral reef ecosystems suggests they are a rare exception to controversies over human use versus environmental conservation - their stunning beauty is so extraordinary that almost everyone wants them protected in perpetuity. view more (2009-11-06)
A salinity study in the Mobile Delta region
Habitat modifications are among mankind's most pervasive alterations of our nation's estuarine ecosystems. When such modifications are extensive, as is the case for the Mobile Bay Causeway, they can alter patterns of natural hydrography. view more (2006-10-16)
Planning A Better Future For Europe's Seas
On Monday 26 April, a unique group of marine scientists, representatives from the fishing, shipping and chemical industries, conservation groups, and high ranking government and EU officials are gathering in Ireland, at Dublin Castle. They are meeting to find better ways of working together. The two-day meeting has been organized by the... view more... (2004-04-26)
Wildlife variety is the spice of life, say scientists
Strictly embargoed for release 19:00 BST / 14:00 EST Wednesday 4 July 2001 Biodiversity is more than just a pretty face - it has an important role in the workings of the living world say results published in Nature today by scientists in the UK and France. They find that the specialisation of different plant species to different roles... view more... (2001-07-02)
Salamanders, headwater streams critical in food chain
University of Missouri scientist Ray Semlitsch studies creatures most people don't ever see. These creatures are active only at night and thrive in the shallow, cool, wet surroundings of headwater streams, an oft-overlooked biological environment. view more (2008-02-22)
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