I study natural selection and ecological processes within plant populations, including pollination biology, plant-herbivore interactions, conservation biology, and the dynamics of gene flow (especially involving transgenic plants). I also investigate possible risks associated with gene editing and gene drives for altering or suppressing wild populations. A current example involves a proposal to develop gene-edited, white-footed mice that are resistant to Lyme disease for Martha’s Vineyard and Nantucket, Massachusetts.