Affiliation: | (1) Départment de Mathématiques et de Statistique, Université de Montréal, Montréal, Québec, Canada;(2) Department of Physiology, McGill University, Montreal, Quebec, Canada;(3) Department of Physiology Medical College of Virginia, Virginia Commonwealth University, 23298 Richmond, VA, U.S.A.;(4) Dept. of General Biology, Vanderbilt University, 37235 Nashville, TN, U.S.A.;(5) Limburgs Universitair Centrum, B-3610 Diepenbeek, Belgium;(6) Ecology and Evolution, State University of New York, 11794 Stony Brook, New York, U.S.A. |