Phil Robertson, Michigan State University Distinguished Professor of Ecosystem Science and the director of the NSF Long-Term Ecological Research (LTER) Program in Agricultural Ecology at the W.K. Kellogg Biological Station. He is also program leader for sustainability research in the Department of Energy’s Great Lakes Bioenergy Research Center.
Measuring ecosystem services to agriculture
http://youtu.be/bcj_324pbWw
Monitoring longterm ecological trends
http://youtu.be/R54CAoYC0Ng