title: The Tangled Evolutionary Legacies of Range Expansion and Hybridization.
abstract: Spatial sorting of dispersal-enhancing traits has been implicated in substantial directional changes in the phenotypic and genotypic makeup of populations undergoing range expansion. We explore here the evolutionary consequences of such changes when two divergent lineages come into secondary contact. We combine instances from the study of contemporary range expansions and historical hybridizations, and highlight links between dispersal, sexual, and physiological traits during the non-equilibrium conditions imposed by range expansions. We argue that a stronger research focus on processes of spatial sorting of multiple traits will improve our understanding of subsequent hybridization dynamics and their evolutionary outcomes, including genomic introgression and speciation.
authors.affiliation: Department of Ecological and Biological Science, University of Tuscia, 01100 Viterbo, Italy. Electronic address: canestrelli@unitus.it.
authors.forename: Daniele
authors.initials: D
authors.lastname: Canestrelli
authors.affiliation: Department of Environmental Biology, University of Rome 'Sapienza', 00185 Rome, Italy.
authors.forename: Daniele
authors.initials: D
authors.lastname: Porretta
authors.affiliation: Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA.
authors.forename: Winsor H
authors.initials: WH
authors.lastname: Lowe
authors.affiliation: Department of Ecological and Biological Science, University of Tuscia, 01100 Viterbo, Italy.
authors.forename: Roberta
authors.initials: R
authors.lastname: Bisconti
authors.affiliation: Laboratory of Experimental and Comparative Ethology, University of Paris 13, Sorbonne Paris Cité, France.
authors.forename: Claudio
authors.initials: C
authors.lastname: Carere
authors.affiliation: Department of Ecological and Biological Science, University of Tuscia, 01100 Viterbo, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Nascetti
mesh_terms: D005075:Biological Evolution; D006824:Hybridization, Genetic