Speciation

Catherine L. Peichel1, Daniel I. Bolnick2, Åke Brännström3,4,5, Ulf Dieckmann4,5,6 and Rebecca J. Safran7 1Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland 2Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, Connecticut 06269-3043, USA 3Department of Mathematics and Mathematical Statistics, Umeå University, SE-901 87 Umeå, Sweden 4Complexity Science and Evolution Unit, Okinawa Institute of Science and Technology Graduate University, 904-0495 Okinawa, Japan 5Advancing Systems Analysis Program, International Institute for Applied Systems Analysis, A-2361 Laxenburg, Austria 6Department of Evolutionary Studies of Biosystems, The Graduate University for Advanced Studies, 240-0193 Kanagawa, Japan 7Department of Ecology and Evolutionary Biology, University of Colorado Boulder, Boulder, Colorado 80309-0334, USA Correspondence: catherine.peichel{at}unibe.ch; daniel.bolnick{at}uconn.edu; ake.brannstrom{at}umu.se; ulf.dieckmann{at}oist.jp; rebecca.safran{at}colorado.edu