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How Healthy Is That Marsh? Biologists Count Parasites

While the parasite hypothesis may conflict with conventional ideas about infectious disease and human health (malaria, for example, is caused by a parasite), the worms the scientists are investigating are not just any kind of parasite. ... More

Purdue scientists: Genetically modified fish could damage ecology

Biologist Rick Howard and his colleagues have discovered a paradox that crops up when new genes are deliberately inserted into a fish’s chromosomes to make the animal grow larger.... More

More large forest fires linked to climate change

The aftermath of the Aspen Fire, a large and severe forest fire that occurred in the summer of 2003 in the Santa Catalina Mountains near Tucson, Ariz.Large forest fires have occurred more frequently in the western United States since the mid-1980s as spring temperatures increased, mountain snows melted earlier and summers got hotter, according to new research.... More

Report warns about carbon dioxide threats to marine life

"It is clear that seawater chemistry will change in coming decades and centuries in ways that will dramatically alter marine life," says Joan Kleypas, the report's lead author and a scientist at the National Center for Atmospheric Research (NCAR) in Boulder.... More

Bird brains shrink from exposure to contaminants

"These residues have been persisting since the late 1960s--that's what is really disturbing," said Dr. Andrew Iwaniuk, a post-doctoral research fellow in the U of A's Department of Psychology. "It has been years since it has been used and still has this effect."... More

Species unique to tidal marshes face threats

These endemic species and subspecies, which seem to be largely restricted to North America, have adaptations that suit them to life in a harsh environment in which seed abundance is low, salinity is high, and flooding is frequent.... More

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