Graduate PhD opportunity: One PhD research assistant position is available (beginning Aug. 2018) for a student interested in the effects of anthropogenic chemicals on ecosystem function. The student will work in the laboratories of Dr. Lora Perkins and Dr. A. Joshua Leffler in the Department of Natural Resource Management at South Dakota State University. The research will focus on the impact of parasiticides used in livestock production on dung beetle populations, nitrogen cycling, and subsequent forage production. The field component of the research will be conducted at Ft. Pierre National Grasslands in central South Dakota. The student is expected to contribute to the broader project, but also develop related research of their own. The student will also work closely with a PhD student in Rural Sociology to investigate the decision making process of livestock producers to use or not to use parasiticides. The assistantship includes a stipend and tuition waiver, and is available for four years contingent on satisfactory progress toward the PhD degree. This research is funded by USDA-NIFA. To apply, send as a single PDF document your CV; unofficial transcripts; a letter describing your experience, research interests, and career goals; and contact information for three professional references to Dr. Lora Perkins ([log in to unmask]) or Dr. A. Josh Leffler ([log in to unmask]). Applications should be received by 11 April 2018. Julie Cotton, M.S. Academic Specialist Sustainable Agriculture & Food Systems Michigan State University 1066 Bogue St., Room A264 Plant and Soil Science Building East Lansing, MI 48824 [log in to unmask] 517-353-0156 undergrads: www.safss.msu.edu grads: www.effs.msu.edu