In general, my research tends to focus on the interface between agriculture and plant community and ecosystem ecology. My interests include weed ecology and management, the role of diversity in agroecosystem function, plant invasions, community assembly theory, trophic interactions, and implications of land-use and climate change. The overall goal of my research is to better understand the ecological interactions that underpin agricultural production systems so as to improve the economic and environmental sustainability of agriculture.
Ph.D., Plant Biology; Ecology, Evolutionary Biology & Behavior, Michigan State University
B.S., Biology, University of New Mexico
Crop Protection (Pests, Diseases, & Weeds)
Crops and Pastures
NR 909: Analysis of Ecological Data
SAFS 502: Agroecology
SAFS 600: Field Experience
Jilling, A., Keiluweit, M., Contosta, A. R., Frey, S., Schimel, J., Schnecker, J., . . . Grandy, A. S. (2018). Minerals in the rhizosphere: overlooked mediators of soil nitrogen availability to plants and microbes. Biogeochemistry, 139(2), 103-122. doi:10.1007/s10533-018-0459-5
Hunter, M. C., Smith, R. G., Schipanski, M. E., Atwood, L. W., & Mortensen, D. A. (2017). Agriculture in 2050: Recalibrating Targets for Sustainable Intensification. BioScience, 67(4), 386-391. doi:10.1093/biosci/bix010
Smith, R. G. (2015). A succession-energy framework for reducing non-target impacts of annual crop production. Agricultural Systems, 133, 14-21. doi:10.1016/j.agsy.2014.10.006
Smith, R. G., Mortensen, D. A., & Ryan, M. R. (2010). A new hypothesis for the functional role of diversity in mediating resource pools and weed–crop competition in agroecosystems. Weed Research, 50, 37-48.