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A fungus that has torn through frog populations worldwide kills by dehydrating the misfortunate amphibians , disrupting electrolyte balance and causing cardiac stop .
The fungusBatrachochytrium dendrobatidis , which is creditworthy for chytridiomycosis disease , has cause massive frog death on a orbicular scale , threatening many specie with extinction . When the fungus reached the Sierra Nevada mountains in California , it slashedmountain yellow - legged frogpopulations by more than 75 percentage in only about four years . The frog ( Rana muscosa ) is now lean as endangered .
Dead southern mountain yellow-legged frogs (Rana muscosa) killed by the chytrid fungus in the Sierra Nevada in California.
science lab experimentation had establishedhow the fungus operates , but a new discipline is the first to mention the disease in action in the natural state . San Francisco State University life scientist Vance Vredenburg and colleagues collected blood samples and pelt swabs from more than 100 yellow - legged toad frog over the course of the summer of 2004 , the year the outbreak hit the Sierra region .
" It ’s really rare to be able to read physiology in the natural state like this , at the exact mo ofa disease outbreak , " discipline researcher Jamie Voyles , a University of California Berkeley ecologist , said in a assertion . The researchers reported their work Wednesday ( April 25 ) in the journalPLoS ONE .
The findings confirmed what researchers had seen in the lab : contagion by the fungus seems to disrupt the toad ' balance of fluids and electrolytes , which are mineral found in the blood that are crucial for muscle function , proper parentage pH and hydration .
" The way of death discovered in the lab seems to be what ’s actually pass off in the field , " Vredenburg said in a statement , " and it ’s that understanding that is key to doing something about it in the future . "
In the science lab , the disease is easy to treat with fungicidal drugs , Vredenburg said . But transferring that treatment to the wild is difficult . life scientist are now experiment with ways to deal tempestuous frogs . The new inquiry suggest that treating individual frogs with electrolyte add-on could declare oneself a glimmer of hope for survival , Vredenburg sound out .
Researchers are also bring to understandhow the disease spreadsin the wild . peaceable chorus frogsmay be carrier of the disease , according to inquiry bring out in March in the journal PLoS ONE .
