A frog-killing fungus is responsible for the decline of more species than any other pathogen on record, a global analysis has found. The study, published on 28 March in Science1, reveals that chytrid fungi have caused the decline of at least 501 amphibian species worldwide from 1965 to 2015, including 90 that have become extinct. Other well-known pathogens such as the bat disease white-nose syndrome or West Nile virus, which kills birds, have affected just a fraction of the number of species. Chytrid fungi’s impact on biodiversity is comparable to those of the most destructive invasive species, such as cats and rodents, says the study.
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