Frog Blight

NEWS RELEASE >The Center for North American Herpetology >Lawrence, Kansas > >28 September 2006 > >The emerging amphibian pathogen Batrachochytrium dendrobatidis globally >infects introduced populations of the North >American Bullfrog, Rana catesbeiana > >2006 Biology Letters 2: 455–459 > >Trenton W. J. Garner, Matthew W. Perkins, >Purnima Govindarajulu, Daniele Seglie, >Susan Walker, Andrew A. Cunningham and Matthew C. Fisher > >Abstract: Batrachochytrium dendrobatidis is the chytridiomycete fungus which >has been implicated in global amphibian declines and numerous species >extinctions. Here, we show that introduced North American Bullfrogs (Rana >catesbeiana) consistently carry this emerging pathogenic fungus. We detected >infections by this fungus on introduced >Bullfrogs from seven of eight countries >using both PCR and microscopic techniques. Only native Bullfrogs from eastern >Canada and introduced Bullfrogs from Japan showed no sign of infection. The >Bullfrog is the most commonly farmed amphibian, and escapes and subsequent >establishment of feral populations >regularly occur. These factors taken together with our study suggest that the >global threat of B. dendrobatidis disease transmission posed by Bullfrogs is >significant. > >A gratis downloadable pdf of this paper is available from the CNAH PDF Library >at > >http://www.cnah.org/cnah_pdf.asp