Professor Director, Bioarchaeology and Biochemistry Laboratory My research seeks to explain how human beings come to physically embody the biological and social aspects of our environments. In varying sites across Europe, my work encapsulates the challenges of bioarchaeological analysis as the most direct indicator of human behavior. I examine diet change from the time of Greek colonization to the Medieval period, and I also helped geochemically assess archaeological human remains to test early written history. With a research team in Ethiopia, we studied wild Ethiopian geladas to generate the largest wild nonhuman primate gut microbiome data set to date. My research uniquely and advantageously incorporates human skeletal populations as well as extant non-human primates to clarify synergistic relationships between environmental impacts at multiple scales. Research Research Areas: Biological Anthropology Research Interests: Bioarchaeology Adaptation Stable isotope biogeochemistry Colonization Culture contact Gut microbiome Graminivory Seasonality Thermoregulation Primates Migration Labs: Biological Anthropology Lab Complex Selected Publications Selected Publications: 2017 Reitsema, L. J., Kozłowski, T., Crews, D. E., Katzenberg, M. A., Chudziak, W. Resilience and Local Dietary Adaptation in Rural Poland, AD 1000-1400. Journal of Anthropological Archaeology 45:38–52. 2016 Reitsema, L.J., Vercellotti, G., Boano, R.. Subadult Dietary Variation at Medieval Trino Vercellese, Italy, and Its Relationship to Adult Diet and Mortality. American Journal of Physical Anthropology 160:653–664. 2016 Reitsema, L.J., Partrick, K. A., Muir, A. B. Inter-Individual Variation in Weaning among Rhesus Macaques (Macaca mulatta): Serum Stable Isotope Biomarkers of Suckling Duration and Lactation. American Journal of Primatology 78:1113–1123. Education Education: PhD, Anthropology, Anatomy minor, The Ohio State University, 2012