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Latest Long Term Ecological Research Network Stories

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2009-04-09 08:58:34

Result in findings on spread of infectious diseases; decline and recovery of endangered species; biodiversity of old-growth forest ecosystems North America's biological field stations have long been home to a rich legacy of research results, scientists say, making them important places for serendipitous discoveries in the biological and environmental sciences. In a paper published in the April issue of the journal BioScience, researchers affiliated with the National Science Foundation's (NSF)...

2009-03-17 16:27:18

A U.S.-led study has found climate change on the Antarctic Peninsula -- one of the most rapidly warming spots on Earth -- is now affecting microscopic life. Researchers using detailed satellite data have discovered global warming is not only affecting just the penguins at the top of the food chain, but simultaneously life at the base of the ecosystem. The researchers from the National Science Foundation's LTER -- Long Term Ecological Research program -- led by Hugh Ducklow of the Marine...

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2008-03-12 15:50:00

The plight of the world's oceans is dire, according to recent studies, through insults from human-derived activities depopulating and damaging reefs, altering coastlines, and creating pollutants, such as nitrogen runoff from terrestrial watersheds. A study by 31 aquatic biologists involving 72 stream sites in the United States and Puerto Rico has found that one critical buffer to excess nitrogen run off from agricultural and urban areas turns out to be small streams and rivers. The findings...

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2007-12-12 09:05:00

COLUMBUS, Ohio -- Scientists have gathered more evidence that suggests flowing water on Mars -- by comparing images of the red planet to an otherworldly landscape on Earth. In recent years, scientists have examined images of several sites on Mars where water appears to have flowed to the surface and left behind a trail of sediment. Those sites closely resemble places where water flows today in the McMurdo Dry Valleys in Antarctica, the new study has found. The new study bolsters the notion...

2005-08-09 23:37:28

An experiment in a dry Antarctic stream channel has shown that a carpet of freeze-dried microbes that lay dormant for two decades sprang to life one day after water was diverted into it, said a University of Colorado at Boulder researcher. The results showed the resilience of life in the harsh polar environment, where temperatures are below freezing for most of the year and glacial melt water flows for only five to 12 weeks annually, said Professor Diane McKnight of CU-Boulder's Institute of...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.