Using GIS to study evolution of invasive species Alycia Stigall of the Ohio University at Athens will present two LEEPS lectures this Friday, April 4, in Leonard Hall. The noon talk in Room 100 is “Using GIS and Phylogenetic Biogeography to Quantify Biogeographic Patterns in Late Devonian Brachiopod and Bivalve Species Invasions over Short Temporal Intervals.” The 3 p.m. talk in Room 109 is on “Taphonomy of High-Latitude Jurassic Lake Deposits of Antarctica.” The LEEPS (Leading Edge of Earth and Planetary Sciences) lecture series brings speakers to UND’s Department of Geology and Geological Engineering throughout the year and, as always, all are welcome to attend. Dr. Stigall is a graduate of the University of Kansas and is on the advisory board for the Ohio Center for Ecology and Evolutionary Studies. Dr. Stigall has been named both the Outstanding Teacher and Researcher of the Year in the Department of Geological Sciences at Ohio University. -- Joseph Hartman, Associate Professor, Geology and Geological Engineering, joseph_hartman@und.edu, 777-5055