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 –omics (genomics – metabolomics) and qPCR 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. Dr. Davis currently has projects investigating these questions in several systems including Lake Erie, Lake Huron, Lake Okeechobee (Florida), and Dianshan Lake (China).
Berry, M.A., T.W. DAVIS, R.M. Cory, M.B. Duhaime, T.H. JOHENGEN, C.L. Kling, J.A. Marino, P.A. Den Uyl, D.C. GOSSIAUX, G.J. Dick, and V.J. Denef. Cyanobacterial harmful algal blooms are a biological disturbance to western Lake Erie bacterial communities. Environmental Microbiology 19(Thematic Issue on Environmental Glycerol Metabolism):1149-1162 (DOI:10.1111/1462-2920.13640) (2017).
Berry, M.A., J.D. White, T.W. DAVIS, S. Jain, T.H. JOHENGEN, G.J. Dick, O. Sarnelle, and V.J. Denef. Are oligotypes meaningful ecological and phylogenetic units? A case study of Microcystis in freshwater lakes. Frontiers in Microbiology 8:Article 365 (DOI:10.3389/fmicb.2017.00365) (2017). https://www.glerl.noaa.gov/pubs/fulltext/2017/20170006.pdf
Bullerjahn, G.S., R.M. McKay, T.W. DAVIS, D.B. Baker, G.L. Boyer, L.V. D'Anglada, G.J. Doucette, J.C. Ho, E.G. Irwin, C.L. Kling, R.M. Kudela, R. Kurmayer, A.M. Michalak, J.D. Ortiz, T.G. Otten, H.W. Paerl, B. Qin, B. Sohngen, R.P. Stumpf, P.M. Visser, and R.W. Wilhelm. Global solutions to regional problems: Collecting global expertise to address the problem of harmful cyanobacterial blooms. Harmful Algae 54:223-238 (DOI:10.1016/j.hal.2016.01.003) (2016).
Cory, R., T.W. DAVIS, G.J. Dick, T.H. JOHENGEN, V.J. DENEF, M.A. Berry, S.E. Page, S.B. Watson, K. Yuhas, and G.W. Kling. Seasonal Dynamics in Dissolved Organic Matter, Hydrogen Peroxide, and Cyanobacterial Blooms in Lake Erie. Frontiers in Marine Science 3(00054)(DOI:10.3389/fmars.2016.00054) (2016). https://www.glerl.noaa.gov/pubs/fulltext/2016/20160008.pdf
DAVIS, T.W., and C.J. Gobler. Preface for Special Issue on “Global expansion of harmful cyanobacterial blooms: Diversity, ecology, causes, and controls”. Harmful Algae 54:1-3 (DOI:10.1016/j.hal.2016.02.003) (2016).
Gobler, C.J., J.M. Burkholder, T.W. DAVIS, M.J. Harke, T.H. JOHENGEN, C.A. STOW, and D.B. VandeWaal. The dual role of nitrogen supply in controlling the growth and toxicity of cyanobacterial blooms. Harmful Algae 54:87-97 (DOI:10.1016/j.hal.2016.01.010) (2016).
Harke, M.J., T.W. DAVIS, S.B. Watson, and C.J. Gobler. Nutrient-controlled niche differentiation of western Lake Erie cyanobacterial populations revealed via metatranscriptomic surveys. Environmental Science & Technology(DOI:10.1021/acs.est.5b03931) (2016).
Reavie, E.D., M. Cai, M.R. Twiss, H.J. Carrick, T.W. DAVIS, T.H. JOHENGEN, D.C. GOSSIAUX, D.E. Smith, D. PALLADINO, A. BURTNER, and G.V. Sgro. Winter–spring diatom production in Lake Erie is an important driver of summer hypoxia. Journal of Great Lakes Research 42(3):608-618 (DOI:10.1016/j.jglr.2016.02.013) (2016).
ROWE, M.D., E.J. ANDERSON, T.T. Wynne, R.P. Stumpf, D.L. FANSLOW, K. Kijanka, H.A. VANDERPLOEG, J.R. Strickler, and T.W. DAVIS. Vertical distribution of buoyant Microcystis blooms in a Lagrangian particle tracking model for short-term forecasts in Lake Erie. Journal of Geophysical Research 121(7):5296-5314 (DOI:10.1002/2016JC011720) (2016). https://www.glerl.noaa.gov/pubs/fulltext/2016/20160026.pdf
Stumpf, R.P., T.W. DAVIS, T.T. Wynne, J.L. Graham, K.A. Loftin, T.H. JOHENGEN, D.C. GOSSIAUX, D. PALLADINO, and A. BURTNER. Challenges for mapping cyanotoxin patterns from remote sensing of cyanobacteria. Harmful Algae 54:160-173 (DOI:10.1016/j.hal.2016.01.005) (2016).
Visser, P.M., J.M.H. Verspagen, G. Sandrini, L.J. Stal, H.C.P. Matthijs, T.W. DAVIS, H.W. Paerl, and J. Huisman. How rising CO2 and global warming may stimulate harmful cyanobacterial blooms. Harmful Algae 54:145-159 (DOI:10.1016/j.hal.2015.12.006) (2016). http://www.sciencedirect.com/science/article/pii/S1568988315301694