Geology - Isotope Geochemistry - Paleoecology
My research centers on understanding how terrestrial landscapes and organisms respond to past climate change.  I primarily use stable isotopic records to study interactions between mammals, vegetation, and climate in past ecosystems.  My work includes examination of modern climatic, ecological and geochemical processes to develop analogs for fossil systems. To date, my research has focused on reconstructing Plio-Pleistocene environments from sedimentary and isotopic records preserved in the East African rift system.  New projects include studies of Holocene soils in Mexico and paleoecological research on Middle Pleistocene teeth and sediments in South Africa.

To find out more about my active projects and opportunities for prospective students, click on the respective links.