, MIDDLETON, Michael D., BAKER, Robert W., HUPPERT, Michele L., and KEYPORT, Douglas, (1) Department of Plant and Earth Science, Univ of Wisconsin-River Falls, 410 S. 3rd St, River Falls, WI 54022, kerry.l.keen@uwrf.edu, (2) Spring Valley Middle-High School, S1450 Cty Rd CC,...