James Stubbendieck is the director of the Center for Great Plains Studies and a professor of grassland ecology at the University of Nebraska. Stephan L. Hatch is a professor of grass taxonomy and director of the S. M. Tracy Herbarium at Texas A & M University, and coauthor of "Grasses of the Texas Gulf Prairies and Marshes and Texas Range Plants," L. M. Landholt coordinates rangeland ecology and endangered species research and teaches in the Department of Agronomy and Horticulture at the University of Nebraska.