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Mysterious ailment plagues U.S. bats, could reach Oklahoma

BY SONYA COLBERG Modified: April 16, 2009 at 12:12 am •  Published: April 16, 2009

photo - A white fungus like that on this little brown bat’s nose is caused by white nose syndrome. The newly discovered disease has already killed 1 million bats. PHOTOS PROVIDED
A white fungus like that on this little brown bat’s nose is caused by white nose syndrome. The newly discovered disease has already killed 1 million bats. PHOTOS PROVIDED

/> First noticed in 2006 in an Albany, N.Y., cave, the fungus may cause hibernating bats to wake up early and then too quickly use their fat reserves before insects are out, said Barbara French, science officer with Bat Conservation International.

The Oklahoma bats considered most at risk are the gray bat and the Indiana bat. Many hibernate in private caves in eastern Oklahoma where gates provided by the federal and state wildlife departments protect the bats while allowing them access to the caves, Hickman said.

But about two-thirds of the state’s bats don’t hang around in caves, where researchers suspect the cold-loving fungus is a greater threat. The state’s common eastern red bats, for example, hang in trees and look like dead leaves.

Why care about bats?
As these critters go, so go their voracious appetites for mosquitoes.

State wildlife officials say Oklahoma’s 1 million migratory Mexican free-tailed bats eat 10 tons of mosquitoes and other insects every night.

"If we lose our bat populations, we are likely to see a serious increase in insects,” French said. "It’s a bad thing to lose.”

Tuttle said one of the most abundant bats, the little brown bat, could be wiped out if the disease isn’t stopped.

"We have never seen anything before that has killed off bats like this,” he said. "It’s not unthinkable we could be facing extinction of some species.”

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Q: Is the bat disease in Oklahoma?

A: The 14,000 hibernating bats at Alabaster Caverns State Park were counted Feb. 14 and no symptoms of white-nose syndrome were spotted, said Mike Caywood, park manager. The U.S. Fish and Wildlife Service released an advisory March 26 about the disease. The advisory doesn’t apply to commercial caves, but it asks cavers to avoid caves with hibernating bats in affected states and adjacent states. People can spread the disease from cave to cave.

Q: Where is the disease?

A: States where the disease has been identified by the U.S. Fish and Wildlife Service are Connecticut, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Vermont, Virginia and West Virginia.

Q: What kinds of bats live in Oklahoma?

A: Oklahoma has these species of bat: southeast bat, gray bat, Keen’s bat, small-footed bat, little brown bat, Indiana bat, cave myotis, Yuma bat, silver haired bat, eastern pipistrel, western pipistrel, Bib brown bat, evening bat, pallid bat, Ozark big-eared bat, red bat, hoary bat, Seminole bat, Mexican free-tailed bat, big free-tailed bat, Rafinesque’s big-eared bat and Townsend’s big-eared bat.

Q: Where can I get more information?

A: For more information on the disease, go to or For information on the Selman Bat Watch, a project of the state Wildlife Conservation Department, call Melynda Hickman at 424-0099 or go to



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