David Zaya, plant ecologist Jun 11, 2020 4:30 pm by Tiffany JolleyIllinois Natural History SurveyPrairie Research Institute Share on Facebook Tweet Email Images David Zaya is a plant ecologist at the Illinois Natural History Survey. Zaya's research focuses on plant communities across Illinois, how communities have changed over time, and factors associated with those changes. Learn more about his work here. Share on Facebook Tweet Email