1. School of Environment and Natural Resources, The Ohio State University, Columbus, USA
2. Environmental Science Graduate Program, The Ohio State University, Columbus, USA
3. Department of Anthropology, The Ohio State University, Columbus, USA
4. W.K. Kellogg Biological Station, Michigan State University, Hickory Corners, USA
5. Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, USA