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Bat at Great Smoky Mountains National Park Tests Positive for White Nose Syndrome Fungus

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Published Date

April 20, 2010
Bat with WNS.

Bat with WNS. Photo by West Virginia Division of Natural Resources

The news from Great Smoky Mountains National Park to start the week wasn't good: a bat in the park has tested positive for Geomyces destructans, the fungus and the presumptive causative agent of White Nose Syndrome.

White Nose Syndrome (WNS) is named for the white fungus that forms on the faces of many infected bats. WNS was first identified in 2007, and has killed over 90% of the bats in many of the caves and mines in the Northeast. As reported last year in the Traveler, the U. S. Fish and Wildlife Service has called WNS "a wildlife crisis of unprecedented proportions." The problem is just now beginning to show up in the Southeast.

The mechanism(s) by which the fungus leads to death are under investigation, but one possibility is that bats become restless during hibernation, moving about the cave and burning up fat reserves or losing body water they need to survive the winter.

Biologists at the park have received confirmation that one Little Brown bat collected from its hibernating refuge in the Park’s White Oak Blowhole cave tested positive for the fungus. White Oak Blowhole cave contains the largest known Indiana bat hibernacula in Tennessee. The Indiana bat is a federally listed endangered species which has seen declines in the Northeastern U.S. due to WNS.

The fungal infection of one of the two bats collected in the Park was confirmed by the U.S. Geological Survey’s National Wildlife Health Center in Madison, Wisconsin. In addition to confirming the fungal infection of the Little Brown bat, a common bat species, photographs taken of federally listed Indiana bats in the cave were found consistent with the early stages of WNS.

Great Smoky Mountains National Park Wildlife Biologist, Bill Stiver said, “We closed all of the Park’s 17 caves and two mine complexes to any public entry a year ago to prevent the possible importation of the WNS pathogen on visitor’s clothing or gear, but scientists have confirmed that bat-to-bat transmission of the fungus occurs. We take this very seriously because national parks are often the primary refuge that endangered species can count on for protection.”

Stiver emphasized that the Park’s caves would remain closed and Rangers would increase their enforcement to reduce the likelihood that visitors might transport the WNS pathogen to uninfected colonies either in the Park or elsewhere. Violators face fines of up to six months in jail or $5,000.

“While a lot of people may misunderstand and even dislike bats,” Stiver said, “they may be hugely important in controlling the population of many insect pests. We are very concerned about the potential decline of bats from both an ecological and human health standpoint.”

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Comments

"Stiver emphasized that the Park’s caves would remain closed and Rangers would increase their enforcement to reduce the likelihood that visitors might transport the WNS pathogen to uninfected colonies either in the Park or elsewhere. Violators face fines of up to six months in jail or $5,000." Exactly what violation are we talking about??? I understand the important of bats in out ecosystem but I am even more worried about the "brown nose syndrome" that has infested the crazy bats who hang out in the Capitol Building.


I am disappointed in the first comment. The 'violation' is to try and go the caves while they are CLOSED! Seemed pretty simple explanation to me. But, then even on this website, we still have to put with anti-government comments that in this case, have no business here. This is a very bad situation and we need to take it seriously.


To clarify for anonymous #1, any crime committed in a National Park is punishable by fines OF UP TO six months in jail or $5,000. I think thats reasonable and completely agree with anonymous #2. And to confirm that the violator doesn't always get the maximum fine just look at the guy who shot and killed an elk in the Smokies, he will probably only receive a $500 fine. Is that just?


This is indeed very sad news.


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