Are Pathogens Felling Frogs?

Science  30 Apr 1999:
Vol. 284, Issue 5415, pp. 728-731
DOI: 10.1126/science.284.5415.728

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TOWNSVILLE, QUEENSLAND, AUSTRALIA-- Since the 1970s, populations and species of frogs have been vanishing worldwide. Many researchers have blamed environmental conditions ranging from increased ultraviolet light to global warming and wind-borne pollutants. Now new data from Australia suggest that the real killer may be a virulent amphibian pathogen called the chytrid fungus. However, several leading U.S. herpetologists resist the notion of a single cause, and some suspect that an environmental cofactor is magnifying the chytrid's effects.