Water molds of the genera Saprolegnia and Leptolegnia are pathogenic to the North American frogs Rana catesbeiana and Pseudacris crucifer, respectively.

Ruthig, G. R., (2009). Diseases of Aquatic Organisms 84(3), 173-178. Inter-Research, Oldendorf/Luhe, Germany. English language

Effects of leachate from tree leaves and grass litter on tadpoles.

Earl, J. E., Cohagen, K. E., Semlitsch, R. D., (2012). Environmental Toxicology and Chemistry 31(7), 1511-1517. Wiley-Blackwell, Boston, USA. English language

Chytridiomycosis widespread in anurans of northeastern United States.

Longcore, J. R., Longcore, J. E., Pessier, A. P., Halteman, W. A., (2007). Journal of Wildlife Management 71(2), 435-444. Wildlife Society, Bethesda, USA. English language

Helminths of the wood frog, Rana sylvatica, and spring peeper, Pseudacris c. crucifer, from southern Michigan.

Muzzall, P. M., Peebles, C. R., (1991). Journal of the Helminthological Society of Washington 58(2), 263-265. English language