Geoffrey Williams

Assistant Professor &
Graduate Program Officer

Department of Entomology & Plant Pathology


Ph.D. in Biology, Dalhousie University, Halifax, Canada
B.Sc. (Honours) in Animal Biology, University of Alberta, Edmonton, Canada


Assistant Professor, Auburn University, Auburn, United States
Senior Research Associate, University of Bern, Bern, Switzerland
Research Associate, University of Bern, Bern, Switzerland
Post-doctoral Research Scientist, Swiss Confederation, Bern, Switzerland



prevention of honey bee colony losses logo
Vice President
Editorial Board Member
Scientific Reports

Research Interests

Pollinator health | Eco-toxicology | Parasitology | Integrated Pest Management | Conservation ecology

Current efforts directed towards understanding and improving the health of insect pollinators in Alabama and abroad, with a focus on exotic parasites and anthropogenic land-use.


Representative Publications

  • Friedli, A., Williams, G.R., Bruckner, S., Neumann, P., Straub, L. 2020. The weakest link: Haploid honey bees are more susceptible to neonicotinoid insecticides. Chemosphere 242: 125145.
  • Straub, L.*, Williams, G.R.*, Vidondo, B., Khongphinitbunjong, K., Retschnig, G., Schneeberger, A., Chantawannakul, P., Dietemann, V., Neumann, P. 2019. Neonicotinoids and ectoparasitic mites synergistically impact honeybees. Scientific Reports 9: 8159. *Equal contributions.
  • Straub, L., Villamar-Bouza, L., Bruckner, S., Chantawannakul, P., Gauthier, L. Khongphinitbunjong, K., Retschnig, G., Troxler, A., Vidondo, B., Neumann, P., Williams, G.R. 2016. Neonicotinoid pesticides can serve as inadvertent insect contraceptives. Proceedings of the Royal Society B 283: 20160506.
  • Chantawannakul, P., de Guzman, L.I., Li, J., Williams, G.R. 2016. Parasites and pests of honey bees in Asia. Apidologie 47: 301-324.
  • Williams, G.R., Troxler, A., Retschnig, G., Roth, K., Shutler, D., Yañez, O., Neumann, P., Gauthier, L. 2015. Neonicotinoid insecticides severely affect honey bee queens. Scientific Reports 5: 14621.
  • Williams, G.R., Alaux, C., Costa, C., Csáki, T., Doublet, V., Eisenhardt, D., Fries, I., Kuhn, R., McMahon, D.P., Medrzycki, P., Murray, T.E., Natsopoulou, M.E., Neumann, P., Oliver, R., Paxton, R.J., Pernal, S.F., Shutler, D., Tanner, G., van der Steen, J.J.M., Brodschneider, R. 2013 Standard methods for maintaining adult Apis mellifera in cages under in vitro laboratory conditions. In V. Dietemann., J.D. Ellis., P. Neumann (Eds.) The COLOSS BEEBOOK, Volume I: standard methods for Apis mellifera research. Journal of Apicultural Research 52: paper 4.
  • Williams, G.R., Tarpy, D.R., vanEngelsdorp, D., Chauzat, M.-P., Cox-Foster, D.L., Delaplane, K.S., Neumann, P., Pettis, J.S., Rogers, R.E.L., Shutler, D. 2010. Colony Collapse Disorder in context. BioEssays 32: 845-846.