Gregory Ruthig

Assistant Professor (2011)

BS, Washington & Lee Univ. (1998) • PhD, University of Virginia (2006) • Post-doctoral research, Arizona State Univ. (2006-2008)


Animal Biology, Evolution, Infectious Disease, Ecology and Environment, Biological Investigations


  • Fungal pathogens of amphibians



Ruthig, G. R., and K. N. Provost-Javier. 2012. Multihost saprobes are facultative pathogens of the bullfrog, Lithobates catesbeianus eggs. Dis. Aquat. Org. 101:13-21.

Ruthig, G. R., and B. P. DeRidder. 2011. Fast quantitative PCR, locked nucleic acid probes, and reduced volume reactions are effective tools for detecting Batrachochytrium dendrobatidis DNA. Dis. Aquat. Org. 97:249-253.

Davidson, E. D., J. Snyder, D. Lightner, G. R. Ruthig, and J. Gilley. 2010. Exploration of potential microbial control agents for the invasive crayfish, Orconectes virilis, in Arizona, USA. Biocontrol Sci. Technol. 20:297-310.

Schock, D. M., G. R. Ruthig, J. P. Collins, S. J. Kutz, S. Carrière, R. J. Gau, A. Veitch, N. C. Larter, D. P. Tate, G. Guthrie, D. G. Allaire, and R. Popko. 2009. Amphibian chytrid fungus and ranaviruses in the Northwest Territories, Canada. Dis. Aquat. Organ. 92:321-40.

Ruthig, G. R. 2009. Water molds of the genera Saprolegnia and Leptolegnia are pathogenic to the North American frogs, Rana catesbeiana and Pseudacris crucifer, respectively. Dis. Aquat. Organ. 84:173-178.

Karraker, N. E., and G. R. Ruthig. 2009. Effect of road deicing salt on the susceptibility of amphibian embryos to infection by water molds. Environ. Res. 109:40-45.

Ruthig, G. R. 2008. The influence of temperature and spatial distribution on the susceptibility of southern leopard frog eggs to disease. Oecologia 156:895-903.

Pasachnik, S. and G. R. Ruthig. 2004. Versatility of habitat use in three sympatric species of Plethodontid salamanders. J. Herpetol. 38:434-437.

External Funding:


National Science Foundation Doctoral Dissertation Improvement Grant, 2003-2005