Tim Davis

Dr. Tim Davis

Ph. D., Stony Brook University     
Office: 504A Life Sciences Building  
Phone:  419-372-8553
Email:     timdavi@bgsu.edu    

Research: Cyanobacteria, harmful algal blooms, climate change, large lakes, toxins 

Great Lakes Center for Fresh Waters and Human Health



Research Interests:

Dr. Davis’ overall research objectives focus on plankton ecology with an emphasis on cyanobacterial harmful algal blooms (cHABs) in aquatic ecosystems. Lakes and coastal regions all over the world are plagued by cHABs including, some of the largest and most socio-economically important, such as the North American Great Lakes, Lake Victoria, Lake Taihu, Lake Okeechobee, and the Baltic Sea, to name a few. Dr. Davis uses advanced molecular techniques such as qPCR and –omics (genomics – metabolomics) to study these events. These techniques allow for the generation of a comprehensive population response, which is critical for understanding how ecosystem function and services are impacted by cHABs. In addition, Dr. Davis integrates emerging technologies that can rapidly detect cHABs and their toxins into his research. These technologies have the capability to significantly decrease the time lag between sample collection and data acquisition which will help protect human and animal heath by allowing water managers to make important decisions quickly. Dr. Davis collaborates with colleagues across the globe and currently has project in Lake Erie, Lake Victoria and Dianshan Lake (China).

Selected Publications:

Matson, P.G., Boyer, G.L., Bridgeman, T.B., Bullerjahn, G.S., Kane, D.S., McKay, R.M.L., McKindles, K.M., Raymond, H.A., Snyder, B.S., Stumpf, R.P., Davis, T.W., 2020. Biophysical drivers facilitating a toxigenic cyanobacterial bloom in a major Great Lakes tributary. Limnology and Oceanography, 65, 2866-2882, https://doi.org/10.1002/lno.11558.

Wood, S.A., Kelly, L., Bouma-Gregson, K., Humbert, J., Laughinghouse IV, H.D., Lazorchak, J., McAllister, T., McQueen, A., Pokrzywinski, K., Puddick, J., Quiblier, C., Reitz, L.A., Ryan, K., Vadeboncoeur, Y., Zastepa, A., Davis, T.W., 2020. Toxic benthic freshwater cyanobacteria proliferations: challenges and solutions for enhancing knowledge and improving monitoring and mitigation. Freshwater Biology, 00: 1 - 19. https://doi.org/10.1111/fwb.13532.

Davis, T.W., Stumpf, R., Bullerjahn, G.S., McKay, R.M., Chaffin, J.D., Bridgeman, T.B., Winslow, C., 2019. Science meets policy: A framework for determining impairment designation criteria for large waterbodies affected by cyanobacterial harmful algal blooms. Harmful Algae, 81: 59 - 64.

Impact Publications:

Steffen Wurch, M.M., Davis, T. W., Stough, J.M.A., McKay, R.M.L, Bullerjahn, G.S., Krausfeldt, L.E., Neitzey, M.L., Boyer, G.L., Johengen, T..H., Gossiaux, D.C., Burtner, A.M., Palladino, D., Rowe, M., Dick, G., Meyer, K.A., Levy, S., Boone, B., Stumpf, R.P., Wynne, T.T., Wilhelm, S.W., 2017. Ecophysiological examination of the Lake Erie Microcystis bloom in 2014: linkages between biology and the water supply shutdown of Toledo, OH. Environmental Science & Technology, 51:6745-6755.

Harke, M.J., Davis, T.W., Watson, S.B., Gobler, C.J., 2016. Nutrient-controlled niche differentiation of western Lake Erie cyanobacterial populations revealed via metatranscriptomic surveys. Environmental Science and Technology 50: 604-615.

Davis, T.W., Koch, F., Marcoval, M.A., Wilhelm, S.W., Gobler, C.J., 2012. Mesozooplankton and microzooplankton grazing during cyanobacterial blooms in the western basin of Lake Erie. Harmful Algae 15: 26-35.

O’Neil, J.M., Davis, T.W., Burford, M.A., Gobler, C.J., 2012. The rise of harmful cyanobacteria blooms (CHABs): The potential roles of eutrophication and climate change. Harmful Algae 14: 313-334.

Davis, T.W., Berry, D.L., Boyer, G.L., Gobler, C.J., 2009. The effects of temperature and nutrients on the growth and dynamics of toxic and non-toxic strains of Microcystis during cyanobacteria blooms. Harmful Algae 8: 715-725.