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Re: USA: Bats Die by the Thousands
Re: USA: Bats Die by the Thousands
Source: http://www.timesunion.com/AspStories/story.asp?storyID=879223
Bats suffering 90% death rate
Illness creates a 'sense of urgency'
By BRIAN NEARING, Staff writer
Last updated: 1:35 p.m., Thursday, December 17, 2009
ALBANY -- Since appearing more than two years ago in Albany County caves, a mysterious bat malady has reduced the bat populations in caves across three states by more than 90 percent, according to counts released Wednesday by the state Department of Environmental Conservation.
The figures show the virulence linked to a fungal condition that wildlife researchers call "white nose syndrome," named for the white, fuzzy fungus found on the faces of afflicted bats. So far, there is no way to stop the spread of the illness, which leaves bats with too little body fat to survive winter hibernation.
In 23 caves surveyed, primarily in Albany and Schoharie counties, as well as four caves in Vermont and Massachusetts, about 4,800 bats were found last winter. That is down from surveys showing more than 55,000 bats for those same caves before the disease outbreak.
The figures include little brown bats, big brown bats and Indiana bats -- the last an endangered species.
"These numbers are about as bad as anyone could imagine," said Al Hicks, a DEC wildlife biologist. "It injects a sense of urgency to the matter. We don't have a lot of years to figure this out. If things continue at this rate, we will be in trouble."
Hicks and other state researchers visited the caves, taking pictures of tightly massed hibernating bats and counting each individual. He said the counts were based on at least 1,000 photographs.
Bats return to their caves to hibernate in the fall and, once gathered, are at risk of being exposed to the fungus again this winter. "We are gearing up now to get back into the caves and see what bats are in there," said Hicks.
Since being detected in Albany County caves in February 2007, white nose syndrome has spread to Vermont, Massachusetts, New Hampshire, New Jersey, Pennsylvania, Virginia and West Virginia, and claimed the lives of hundreds of thousands of bats. It is not clear whether the fungus is a cause of death or appears only after the bats' health is compromised by some other ailment.
With too little fat to survive the winter and roused from hibernation by starvation, bats sometimes leave caves during winter in a fruitless search for insects to eat.
New York's bat survey, which is the first multi-state survey to be released, is "not unexpected, but very disappointing and depressing," said Jeremy Coleman, national white nose syndrome coordinator for the U.S. Fish and Wildlife Service.
He said researchers are looking at possible fungal treatments to help cleanse caves where bats hibernate, and are also examining genetic differences between European bats, which seem less susceptible to the malady, and American bats.
"Right now, this fungus looks like an invasive (species) that was introduced," said Coleman. "It was not found previously anywhere in North America, and was somehow introduced here from another location. It is something that our bats never had to deal with before."
Caves in New York and other infected states have been closed to recreational cavers in an attempt to reduce the spread of the fungus. Federal officials are also advising that caves in states where the malady has not yet surfaced, like Ohio and Kentucky, also be closed to protect bats.
Brian Nearing can be reached at 454-5094 or at bnearing@timesunion.com.
Read more: http://www.timesunion.com/AspStories/story.asp?storyID=879223#ixzz0Zyf9xeVA
Re: USA: Bats Die by the Thousands
Source: http://www.timesunion.com/AspStories/story.asp?storyID=879223
Bats suffering 90% death rate
Illness creates a 'sense of urgency'
By BRIAN NEARING, Staff writer
Last updated: 1:35 p.m., Thursday, December 17, 2009
ALBANY -- Since appearing more than two years ago in Albany County caves, a mysterious bat malady has reduced the bat populations in caves across three states by more than 90 percent, according to counts released Wednesday by the state Department of Environmental Conservation.
The figures show the virulence linked to a fungal condition that wildlife researchers call "white nose syndrome," named for the white, fuzzy fungus found on the faces of afflicted bats. So far, there is no way to stop the spread of the illness, which leaves bats with too little body fat to survive winter hibernation.
In 23 caves surveyed, primarily in Albany and Schoharie counties, as well as four caves in Vermont and Massachusetts, about 4,800 bats were found last winter. That is down from surveys showing more than 55,000 bats for those same caves before the disease outbreak.
The figures include little brown bats, big brown bats and Indiana bats -- the last an endangered species.
"These numbers are about as bad as anyone could imagine," said Al Hicks, a DEC wildlife biologist. "It injects a sense of urgency to the matter. We don't have a lot of years to figure this out. If things continue at this rate, we will be in trouble."
Hicks and other state researchers visited the caves, taking pictures of tightly massed hibernating bats and counting each individual. He said the counts were based on at least 1,000 photographs.
Bats return to their caves to hibernate in the fall and, once gathered, are at risk of being exposed to the fungus again this winter. "We are gearing up now to get back into the caves and see what bats are in there," said Hicks.
Since being detected in Albany County caves in February 2007, white nose syndrome has spread to Vermont, Massachusetts, New Hampshire, New Jersey, Pennsylvania, Virginia and West Virginia, and claimed the lives of hundreds of thousands of bats. It is not clear whether the fungus is a cause of death or appears only after the bats' health is compromised by some other ailment.
With too little fat to survive the winter and roused from hibernation by starvation, bats sometimes leave caves during winter in a fruitless search for insects to eat.
New York's bat survey, which is the first multi-state survey to be released, is "not unexpected, but very disappointing and depressing," said Jeremy Coleman, national white nose syndrome coordinator for the U.S. Fish and Wildlife Service.
He said researchers are looking at possible fungal treatments to help cleanse caves where bats hibernate, and are also examining genetic differences between European bats, which seem less susceptible to the malady, and American bats.
"Right now, this fungus looks like an invasive (species) that was introduced," said Coleman. "It was not found previously anywhere in North America, and was somehow introduced here from another location. It is something that our bats never had to deal with before."
Caves in New York and other infected states have been closed to recreational cavers in an attempt to reduce the spread of the fungus. Federal officials are also advising that caves in states where the malady has not yet surfaced, like Ohio and Kentucky, also be closed to protect bats.
Brian Nearing can be reached at 454-5094 or at bnearing@timesunion.com.
Read more: http://www.timesunion.com/AspStories/story.asp?storyID=879223#ixzz0Zyf9xeVA