1. Department of Biological SciencesUniversity of Alberta Edmonton AB Canada
2. Department of Earth SciencesVrije Universiteit Amsterdam The Netherlands
3. U.S. Geological Survey, Earth System Processes Division Denver CO USA
4. Marine Science InstituteUniversity of Texas at Austin Port Aransas TX USA
5. Centre Eau Terre Environnement, Institut national de la recherche scientifique Québec QC Canada
6. Department of Plant and Wildlife SciencesBrigham Young University Provo UT USA