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Death in the bat caves: UC Davis experts call for action against fast-moving disease
Date:2/2/2011

A team of wildlife experts led by UC Davis called today for a national fight against a new fungus that has killed more than 1 million bats in the eastern United States and is spreading fast throughout North America.

"If we lose bats, we lose keystone species in some communities, predators that consume enormous numbers of insects, and beautiful wildlife species that are important parts of North America's biodiversity," said Janet Foley, a UC Davis professor of veterinary medicine at the Center for Vectorborne Diseases.

Foley and her co-authors' call to action appears today online in the Early View section of the journal Conservation Biology.

Bats are essential members of natural ecosystems, hunting insects, pollinating plants and scattering seeds, Foley said. "Bats do the jobs at night that birds do during the day. But because they are most active in darkness, few people are aware of how many bats live around us and how valuable they are."

The new fungal disease has been named "white-nose syndrome." Scientists think the fungus, which normally lives in soil, somehow traveled to cave walls where bats hibernate in winter and began infecting the animals' facial skin and wing membranes.

Sick bats appear to be coated with frost. They fly more than normal, which uses up fat reserves, and also lose water at a faster rate than normal. Disoriented, they move to exposed places, such as cave entrances.

Eventually, they starve, freeze or die of dehydration.

The first infected bats were found by a cave explorer near Albany, N.Y., in February 2006. Since then, infected bats have been found northward to Ontario and Quebec in Canada, south to Tennessee and west to Oklahoma. The authors write that they expect white-nose syndrome to cross the Rocky Mountains and enter California in the next several years.

There are 23 species of bats in California that hibernate in caves, and so are vulnerable to white
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Contact: Janet Foley
jefoley@ucdavis.edu
530-754-9740
University of California - Davis
Source:Eurekalert  

Page: 1 2

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