I investigate various topics in environmental science, especially those related to freshwater insects and ecological sustainability. Freshwater insects have proven valuable for the analysis of environmental change in space & time, the application of phylogenetic models to problems in environmental toxicology, and the development of new identification systems, such as DNA barcoding. Much of my research has focused on the insect order Ephemeroptera, or mayflies. Aspects of this research include, but are not limited to, taxonomy and identification, biodiversity, phylogeny, rearing and stage associations, descriptive biology and ecology, field studies, conservation, species inventories and regional faunistics. I interact with various international stakeholders in the academic, government and private realms.