GRADUATE RESEARCH ASSISTANTSHIP A graduate research assistantship is available for students interested in pursuing a Ph.D. in ecology. The successful applicant will work on a multi-investigator project that examines the effects of invasion by cheatgrass (Bromus tectorum) on nitrogen dynamics in arid regions of the western United States. The primary study site is in Canyonlands National Park, but opportunities exist for research in other desert ecosystems. The student will work in the lab of R.D. Evans at the University of Arkansas. The RA will cover the student stipend and tuition, plus all travel and research expenses. Exceptional students may also qualify for an additional research stipend from the University. The University of Arkansas has a young group of active ecologists offering a variety of courses in ecology and evolutionary biology. Excellent opportunities exist at the Center for Advanced Spatial Technologies for students interested in GIS and remote sensing, and at the Stable Isotope Science Center of the Ozarks for students interested in stable isotope applications in ecology. Requirements: The student must be accepted into the graduate program in Biological Sciences at the University of Arkansas. The starting date is spring semester of 2000, although this can be delayed for exceptional applicants. For more information, contact Dr. R. Dave Evans, Department of Biological Sciences, University of Arkansas, Fayetteville, AR 72701. Phone: 501-575-7093. Email: [log in to unmask] Additional information will also be given at the web site: http://biology.uark.edu/devans/evans.html