Frog plague found in India

Jeremy Hance
January 03, 2012

Hyloscirtus colymba tree frog being fed after being treated for Chytridiomycosis in Panama. Photo by: Rhett A. Butler.

The chytrid fungus, which is responsible for the collapse of numerous amphibian populations as well as the extinction of entire species, has been located for the first time in India, according to a paper in Herpetological Review. Researchers took swabs of frog in the genus Indirana in the Western Ghats and found the fungus, which leads to the killer disease chytridiomycosis.

"What we have detected is minimal, but it is very significant because this virus can threaten the already declining amphibian population in our forests to total extinction," Sanil George with the Rajiv Gandhi Center for Biotechnology (RGCB) told The New Indian Express.

The chytridiomycosis disease is caused by a microscopic fungus called Batrachochytrium dendrobatidis (Bd) that lives in water and soil. The disease has decimated species throughout Central and South America, Africa, and Australia as it hinders the flow of sodium and other electrolytes across the frog's skin, eventually resulting in heart failure.

Globally, the world's amphibians are facing an extinction crisis. It's believed that at least 120 amphibians have gone extinct in the last 30 years, while 41 percent of the world's 7,000 known amphibians are considered threatened with extinction by the IUCN Red List. In addition to chytridiomycosis, deforestation, wetland loss, pollution, overexploitation, the pet trade, invasive species, and climate change have all taken a toll on these sensitive creatures, which have been dubbed by many ecologists as "canaries in a coal mine" for their ability to point out environmental degradation.

CITATIONS: Nair A., O. Daniel, S.V. Gopalan, S. George, K.S. Kumar, J. Merilä & A.G.F. Teacher. Infectious disease screening of Indirana frogs from the Western Ghats biodiversity hotspot. Herpetological Review 42: 554-557.

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Jeremy Hance
mongabay.com (January 03, 2012).

Frog plague found in India.