The Laurentian Great Lakes hold 20% of our planet’s fresh water and represent a powerful system for studying microbial ecology and evolution. We have developed the first comprehensive microbial time series across all five Great Lakes, and we are using this dataset to ask fundamental questions about the causes and consequences of microbial diversity.
Viruses in the oceans interact with their hosts in complex ways, affecting metabolism, population structure, and genome evolution. Our lab studies feedbacks between cyanophage and biogeochemistry.
Metagenomics continues to uncover microbial genetic diversity at a rapid pace, but assigning gene functions remains a major bottleneck. We are using genetics approaches to identify genes underlying ecological interactions and biogeochemical processes.