Tag: "amazonian" at biology news

Undisturbed Amazonian forests are changing, say scientists

A research team of U.S. and Brazilian scientists has shown that rainforests in central Amazonia are experiencing striking changes in dynamics and species composition. Although the cause of these changes-in what are believed to be completely undisturbed, old-growth forests-is uncertain, a leading explanation is that they are being driven by rising levels of carbon dioxide in the atmosphere. .........

Astonishing discovery over the Amazonian rain forest

Isoprene, an organic compound generated in large quantities by natural vegetation, was originally thought not to be involved in producing atmospheric aerosols. It has now been found to be a potentially major player in this process. An international team of scientists from the Max Planck Institute of Chemistry, Mainz, Germany, the University of Antwerp, Belgium, the Ghent University, Belgium, and...

Amazonian devastation: Common sense quantified to predict disaster

Threats to Amazonian forests are no news, but a team led by William F. Laurance of the Biological Dynamics of Forest Fragments Project and the Smithsonian Tropical Research Institute pinpoints specific causes of forest destruction in hopes of stemming the tide. Human population density, distance to the nearest highway and dry season severity best predict the extent of deforestation, the group rep...

Young Amazonian manatee returned to wild

FORT PIERCE, FL., March 8, 2002 - A baby manatee that was at one time bottle-fed by Colombian soldiers is back in the Colombian Amazon after almost three years of care and rehabilitation, thanks in part to the efforts of a HARBOR BRANCH scientist and a unique conservation outreach program. ...... The Amazonian manatee, named Airuwe by his caretakers, was only a few months old when he became t...

Smithsonian researchers show Amazonian deforestation accelerating

A research team of U.S. and Brazilian scientists has provided compelling evidence that rates of forest destruction in the Brazilian Amazon have accelerated over the last decade....... The team, led by William Laurance of the Smithsonian Tropical Research Institute, analyzed deforestation estimates produced by Brazils National Space Agency that were based on detailed satellite images of the Amazo...

Chemistry in the Amazon: Tropical birds, Amazonian tribespeople derive medicinal benefits from insects, plants

. . Eloy Rodriguez, professor of environmental studies at Cornell University, will speak at the 221st national meeting of the American Chemical Society, the world's largest scientific society, on natural organic chemicals found in the Amazon. The meeting will be held April 1-5 in San Diego, Calif.. . Rodriguez' remarks, part of the ACS eminent scientist lecture series, will highlight the in...
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