Tag: bats

Bat-killing fungus spreads to Texas

White-nose syndrome has killed 5.5 million bats so far

Bats take to the evening sky in the San Luis Valley of southern Colorado. Photo courtesy Colorado Parks and Wildlife.
A little brown bat afflicted with white-nose syndrome. Photo courtesy USGS.

Staff Report

Read more about white-nose syndrome in the Summit Voice archives

A fungal pathogen that has wiped out bat populations across the eastern third of the U.S. has now been found in Texas, according to state wildlife officials, who documented the fungus for the first time on two new bat species: the cave myotis and a western subspecies of Townsend’s big-eared bat.

White-nose fungus first emerged in 2006 in New York and his since spread into 30 states and killed at least 5.5 million bats. Wildlife conservation advocates said the recent announcement from is a biological disaster, considering the potential risks to huge, world-famous bat colonies that thrive in unique cave ecosystems in the state. Continue reading “Bat-killing fungus spreads to Texas”

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Endangered Indiana bats face twin threat from wind turbines and white-nose syndrome

Indiana bats hibernating in a cave. PHOTO COURTESY USGS/ANDREW KING.
Indiana bats hibernating in a cave. PHOTO COURTESY USGS/ANDREW KING.

Small hibernating bat colonies need protection to prevent extinction

Staff Report

Between collisions with wind turbines and deadly white-nose syndrome, endangered Indiana bats may not have much of a chance of recovering, according to a recently published U.S. Geological Survey study.

The researchers used a scientific model to compare how wind turbine mortality and WNS may singly and then together affect Indiana bat population dynamics throughout the species’ U.S. range. Continue reading “Endangered Indiana bats face twin threat from wind turbines and white-nose syndrome”

Genetic study tracks westward spread of bat-killing disease

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White-nose syndrome is wiping out bats across the U.S. Photo courtesy USGS.

Are humans responsible for  the big jump to the West Coast?

Staff Report

Genetic analysis shows that the bat-killing fungus recently detected for the first time in western North America is  similar to strains found in the eastern United States. That means there is a good chance that humans were involved in spreading the disease, according to conservation advocates who want resource managers to step up efforts to halt the spread of the fungus by restricting cave tourism.

The new study, published in the journal mSphere, has implications for resource managers battling the spread of a disease that has wiped out millions of bats in North America. It provides new clues about the origin of this strain of the Pseudogymnoascus destructans fungus, or Pd. The latest case of WNS near North Bend, Washington was about 1,300 miles from the previous westernmost detection in Nebraska. Continue reading “Genetic study tracks westward spread of bat-killing disease”

USFWS says it won’t set critical habitat for threatened bat

Northern long-eared bat
A northern long-eared bat. Photo by New York Department of Environmental Conservation; Al Hicks.

Conservation groups say agency sold out to special interests

Staff Report

Federal biologists say they won’t designate critical habitat for a species of bat threatened by white-nose syndrome. The decision was immediately protested by conservation advocates, who claim the U.S. Fish and Wildlife Service caved to industry pressure in making the decision.

In a press release, the USFWS explained that designating critical habitat wouldn’t be prudent, because it might increase the risk of vandalism and disturbance to bats at hibernation sites and could hasten the spread of white-nose syndrome. The decision doesn’t affect the bat’s threatened status under the Endangered Species Act.

Long-eared bat populations have plummeted by up to 90 percent in some core areas, and conservation advocates say critical habitat could help protect the species. The Center for Biological Diversity said the decision is another example of the USFWS appeasing special interests “rather than protecting our most vulnerable animals.” Continue reading “USFWS says it won’t set critical habitat for threatened bat”

Bat-killing fungus has spread across 26 states

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A bat displays signs of the deadly white-nose syndrome. Photo via USFWS.

Nebraska officials confirm presence of white-nose syndrome

Staff Report

Bat-killing white-nose syndrome has been confirmed in Nebraska, which means the deadly fungus has now spread to 26 states and five Canadian provinces, wiping out populations of hibernating bats along the way.

“While the presence of the fungus is disappointing, it is not surprising,” said Mike Fritz, a zoologist with the Nebraska Game and Parks Commission. “With the fungus being present in states around us and the migratory nature of bats, it was probably only a matter of time before it was documented in Nebraska.” Continue reading “Bat-killing fungus has spread across 26 states”

Can bat populations recover from white-nose syndrome?

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A little brown bat afflicted with white-nose syndrome. Photo courtesy USFWS.

Some bats may only survive in remnant populations

Staff Report

LINZ — Even as they grapple with the devastating decline of bat populations caused by white-nose syndrome, researchers are starting to take a look at how, if and when some bats might recover from the fungal disease that has decimated colonies across the eastern U.S.

For at least one species, the outlook isn’t all that bright, according to U.S. Geological Survey scientists who took a close look at the once-common little brown bat. Continue reading “Can bat populations recover from white-nose syndrome?”

Biodiversity: Forest Service says better bat tracking needed to combat threats

Standardized monitoring to help assess population trends

Thousand of bats fly out of a roost near Saguache, Colorado. PHOTO BY COLORADO PARKS AND WILDLIFE.
Thousand of bats fly out of a roost near Saguache, Colorado, an event that draws wildlife watchers each year. Photo courtesy Colorado Parks and Wildlife.

Staff Report

FRISCO — U.S. Forest Service scientists hope a new report will help scientists across the country track bats more effectively in an era when the flying mammals are facing unprecedented threats, including habitat loss and fragmentation, white-nose syndrome , wind energy development, and climate change.

Better tracking can help resource managers get the information they need to manage bat populations effectively, by detecting early warning signs of population declines, and estimating extinction risks.

White-nose syndrome has killed millions of bats since it was first detected in 2006, and more than 1 million have been killed at wind energy facilities since 2000. Combined with intensified pressure from land-use changes, scientists say there’s a real need for a continent-wide standardized monitoring system. Continue reading “Biodiversity: Forest Service says better bat tracking needed to combat threats”