Effects of Batrachochytrium dendrobatidis and methylmercury on survival of amphibians across the United States

The U.S. Geological Survey conducted sampling across the United States between 2017 and 2022 to assess the effects of methylmercury bioaccumulation and amphibian chytrid fungus (Batrachochytrium dendrobatidis; Bd) on the survival of amphibian species. This dataset includes detections and non-detections of Bd (obtained from DNA extracted from skin swabs) and whole-body methylmercury concentrations from individual amphibians, as well as habitat and climate characteristics where samples were collected.