I am an anthropologist who studies complex social-ecological systems integrating multiple theoretical and methodological approaches. In my years at Ohio State University, I have pursued a range of different interdisciplinary research projects that examine a range of research problems, including sustainable use of common-pool resources, ecology of infectious diseases, regime shifts in floodplain fisheries, demographic dynamics in pastoral systems, territoriality among prehistoric pastoralists, and the transition from pastoralism to ranching. Most of my research projects are collaborative endeavors and involve colleagues and students from the Ohio State University and Maroua University, Cameroon. While these projects are all quite different, there are common threads: the research is ethnographically grounded, research problems are derived from the field, integrate multiple theoretical and methodological tools, and the focus is on dynamic systems, large (e.g., regime shifts in floodplain fisheries) and small (e.g., demographic dynamics of herds).