Coupling of Barriers to Gene Exchange: Causes and Consequences

Erik B. Dopman1, Kerry L. Shaw2, Maria R. Servedio3, Roger K. Butlin4,5 and Carole M. Smadja6 1Department of Biology, Tufts University, Medford, Massachusetts 02155, USA 2Department of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853, USA 3Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599, USA 4Ecology and Evolutionary Biology, School of Biosciences, The University of Sheffield, Western Bank, Sheffield S10 2TN, United Kingdom 5Department of Marine Sciences, University of Gothenburg, Gothenburg 40530, Sweden 6Institut des Sciences de l'Evolution de Montpellier ISEM, Universite de Montpellier, CNRS, IRD, Montpellier 34095, France Correspondence: erik.dopman{at}tufts.edu