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Bats' White-Nose Syndrome May Be Cured
New submitter alabamatoy writes: Several news outlets are reporting that a common bacteria may be proving successful in curing "white-nose syndrome" which has been decimating the bat populations across North America. A new treatment using a common bacterium was developed in Missouri by Forest Service scientists Sybill Amelon and Dan Lindner, and Chris Cornelison of Georgia State University. The Nature Conservancy reports: "On May 20, 2015, Scientists and conservationists gathered outside the historic Mark Twain Cave Complex in Hannibal, Missouri, to release back into the wild some of the first bats successfully treated for deadly White-Nose Syndrome." Bats are a key player in the environment, keeping insect populations under control, especially mosquitoes.
of 10% really that significant? Bats are rodents, they breed prodigiously.
1. Bats are not rodents.
2. They don't breed prodigiously, often having on one offspring per year.
The big problem with the white fungus is that it keeps the bats awake, and makes it so they can't hibernate properly. So their body temperature stays high, which means they burn calories, which means they starve to death before springtime.
This is great news. For those who haven't been following it, white nose syndrome is an emergent disease affecting bats. It's caused by a fungus that grows on the skin of the animals, and has been killing millions of bats across many parts of the eastern United States (map). A decontamination protocol has been established for researchers and cavers who come into contact with the animals. This is the first really optimistic piece of news about the disease that I've seen.
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As ShanghaiBill says, Bats aren't rodents. I'll just add that bats and rodents are about as taxonomically unrelated as two mammals can possibly be.
Bats are more closely related to horses, bears, rhinos, even whales -- like most mammals they're members of the huge and diverse superorder Laurasiatheria. Rodents are in the much smaller superorder Euarchontoglires, the only non-extinct members of which are: rodents, rabbits, hares, pikas, tree shrews, flying lemurs, and the various primates.
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Bats eat up to 600 mosquitoes an hour.
This one may have gotten started with a study in which mosquitoes were released into a room full of bats while researchers counted how many they ate. The bats consumed about 10 per minute, or 600 per hour. But mosquitoes were the only insects in the room for the hungry bats to eat. Since then, studies have found that mosquitoes make up less than 1 percent of bat diets.
http://www.mosquitoworld.net/mosquito-myths/
Sure, they can be cute; however, in terms of human health, bats are reservoirs for rabies and various coronaviruses that affect humans. For example, a recent paper in Nature showed that SARS can go from some bats to humans without an intermediate host, and the same likely applies to MERS. Worse, ebola-infected bats have also been found. Then, there's this quote from wiki: "Bats harbor more viruses than rodents and are capable of spreading disease over a wider geographic area owing to their ability to fly and their migration and roosting patterns."
My question for the armchair epidemiologists here is to what extent this is outweighed by bats' feeding on mosquitoes (in the areas which this story concerns).
"Politicians and diapers must be changed often, and for the same reason."
The article referred to in the original news above is fluff. Here's the actual publication being used to effect a probiotic cure for the bats:
http://journals.plos.org/ploso...
Very few people nowadays the word "decimation" with it's original meaning, and I'm guessing the author didn't here either. Or rather, we should probably say that the word has evolved to mean "an arbitrarily large percentage" and not just 10%. I see that definition listed as #3 in Merriam-Webster, where the original meaning is #1. Those should probably be reversed now. #2, in case you're wondering, is related to taxation. Go figure.
Eradicating would have perhaps been a better word to use.
Fatality rate for the total bat population in affected caves is 90-100%. In many caves in Missouri, the bats are *gone*.
I went to the article to find out that this fungus was apparently introduced ten years ago, which obviously seems to indicates human involvement, and explains why the bat have no natural defense. I think this also justifies human involvement in finding a solution.
Very likely human involvement. The fungus is natural in European caves, and European bats can have the fungus on them without becoming colonized by it.
The fungus is thought to spread between American caves by people.