News
News Home
Quick Bites
Exploradio
News Archive
News Channel
Special Features
NPR
nowplaying
On AirNewsClassical
Loading...
  
School Closings
WKSU Support
Funding for WKSU is made possible in part through support from the following businesses and organizations.

NOCHE

Meaden & Moore

Lehmans


For more information on how your company or organization can support WKSU, download the WKSU Media Kit.

(WKSU Media Kit PDF icon )


Donate Your Vehicle to WKSU

Programs Schedule Make A Pledge Member BenefitsFAQ/HelpContact Us
Science and Technology




Exploradio: The good and bad news about bats in peril
An imported fungus is wiping out bats in the Eastern U.S. -  but one species has a natural resistance to White Nose Syndrome
by WKSU's JEFF ST. CLAIR
This story is part of a special series.


Reporter / Host
Jeff St. Clair
 
The endangered Virginia big-eared bat lives up to its name. It's the only North American bat discovered so far to have a natural immunity to the deadly White Nose Syndrome which is leading some species to extinction.
Courtesy of Greg Turner, PA Game Commission
Download (WKSU Only)
In The Region:

Researchers in Akron have discovered a species of bat that may have a built-in immunity to a disease that’s wiping out bats across the eastern U.S.

White Nose Syndrome has killed millions of the flying mammals since it was first seen in 2006.

In this week’s Exploradio, WKSU’s Jeff St.Clair looks at the good news, and bad news, about bats in peril.

Exploradio: Good and bad news about bats

Other options:
MP3 Download (4:13)


The bad news in Summit County
Michael Johnson, chief of natural resources at Summit Metroparks, first brings us the bad news.

He asks us to imagine that in two years…"blue jays, cardinals, sparrows were going to be extinct. That’s exactly what’s happening with our bats.”

Johnson says caves at Liberty Park in Twinsburg were home to around 100,000 bats just two years ago.

Then, the deadly white nose syndrome swept through Summit County. He says recent sampling for one of the most common species came up dry.

He says in 2013, "we didn't catch any... They seemed to be almost entirely gone.”

The enormity of the impact is still sinking in. According to Johnson, "we’re looking at an extinction event.”


The spread of white nose syndrome
The four species of mouse-eared bats found in Ohio and the tiny tri-colored bat have been hardest hit by the white nose fungus. Up to 98 percent of the once common little brown bat are gone.

The fungus (Pseudogymnoascus destructans) was first found in a cave in New York in 2006, most likely transported from Europe on a hiker’s boot.  It’s now spread to 25 states and five Canadian provinces. An estimated 7 million bats have died from the disease.   

The cold-loving fungus attacks bats while they’re hibernating, siphoning their energy reserves. When they should be sleeping, they awaken weakened, and without food, they perish.


More bad news
Hazel Barton studies cave ecosystems at the University of Akron. She’s found that the fungus that causes white nose syndrome not only lives on bats, it thrives indefinitely on the cave floor.  Her findings dash hopes that remnant populations could someday repopulate contaminated caves.

“If you wait a hundred years, you still have enough fungus in that environment that bats could potentially be infected.”

She says with their slow reproductive rate it could be 10,000 years before the hardest hit species rebound, assuming any survive at all.

But there is a glimmer of hope. The imported fungus is already changing, and is slightly less deadly now than when it first arrived six years ago.

Her findings suggest that the organism, "is already starting to adapt to our bat population and maybe reducing how quickly it kills.”

She thinks that adaptation actually makes the fungus more efficient at infecting bats.


Now for the good news
Grad student Kelsey Njus has spent countless hours growing various bat fungi in Barton’s lab.

She’s discovered what could make one species of North American bat, the rare Virginia big-eared bat, resistant to white nose syndrome.

Njus says, even though the big-eared bats carry the white nose fungus, "it’s not killing them, it’s not doing anything to them, they’re fine.”

Njus was determined to find out why.

She did molecular testing of tiny hair samples from the big-eared bat, looking for clues to its immunity.

She found a yeast that naturally grows on the bats’ fur, and the bats comb this dead yeast all over their bodies.

Njus believes the yeast could be inhibiting the growth of the fungus.

The yeast produces a slightly acidic, waxy yellow paste - a type of fatty acid that Njus thinks makes the bats' skin and fur, "inhospitable to a lot of pathogenic organisms," including the white nose fungus.

Njus tested the yeast’s ability to fight the fungus in the lab, and found that the yeast, “is completely inhibiting" the growth of the analogue to the white nose fungus in culture.

It’s the first ray of hope in what’s been six years of bat gloom.

She says it's, “the best news that I’ve discovered in a while.”

But Njus and Hazel Barton both caution that the discovery of resistance in one bat species is unlikely to help other bats escape the relentless scourge of white nose syndrome.  

(Click image for larger view.)

Listener Comments:

Keep up the great research!!


Posted by: Sam Baxter (30139 - GA) on June 7, 2014 3:06AM
Add Your Comment
Name:

Location:

E-mail: (not published, only used to contact you about your comment)


Comments:




 
Page Options

Print this page

E-Mail this page / Send mp3

Share on Facebook



Support for Exploradio
provided by:








Stories with Recent Comments

Exploradio: The never-ending war against superbugs
Super Federico ,we are so proud of you ,and very lucky to be among your friends . Keep it up human kind needs people like you to survive .Thanks for being so d...

Ohio's Lyme disease-carrying tick population is exploding
Interesting report. The last sentence needs some editing. It isn't a good idea to "save garments carrying ticks for analysis." The garments carrying t...

Teach for America enters third year in Ohio
For more background on TFA, check out http://reconsideringtfa.wordpress.com/

Faith leaders hold week-long prayer vigil at Ohio Statehouse
I think this is the wrong link to the audio. Its Andy Chow about cigarette taxes.

A $30 million plan to turn Cleveland's Public Square from gray to green
The current plan is for the Land Bank, RTA, and Mr. Jeremy Paris to run a bus line through the new Public Square and cutting the park in half. Save Public Squar...

Medina County residents question safety of proposed natural gas pipeline
I'm very concerned about this nexus project. I've received mail requesting my permission to allow the company to survey my property. I don't understand how thi...

A small group of tea party and Democrats protest at Kasich campaign stop
Enjoyed your excellent coverage of the statehouse for sometime now, never dreamed I'd be on. The feedback from people has been great. Thank you. Doris Adams

Top staffers are leaving the FitzGerald gubernatorial campaign
I's too bad that the dirt on Fitzgerald dug up by Kasich's operatives and publicized heavily by the Yellow Plain Dealer has caused the weak staffers of the Fitz...

Churches come together to welcome and include Gay Games athletes
Nicely done!!! A little known fact about the El Salvadoran and Columbian scholarships.. A big thank you to the Faith Community for their support of Gay Games 9....

Copyright © 2014 WKSU Public Radio, All Rights Reserved.

 
In Partnership With:

NPR PRI Kent State University

listen in windows media format listen in realplayer format Car Talk Hosts: Tom & Ray Magliozzi Fresh Air Host: Terry Gross A Service of Kent State University 89.7 WKSU | NPR.Classical.Other smart stuff. NPR Senior Correspondent: Noah Adams Living on Earth Host: Steve Curwood 89.7 WKSU | NPR.Classical.Other smart stuff. A Service of Kent State University