Journal
TRENDS IN ECOLOGY & EVOLUTION
Volume 31, Issue 9, Pages 677-688Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tree.2016.06.010
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Funding
- Italian Ministry of Education, University, and Research (PRIN project) [2012FRHYRA]
- National Science Foundation [DEB-1050459, DEB-1258203]
- European Commission [H2020-MSCA-IF-2014-659106]
- Direct For Biological Sciences
- Division Of Environmental Biology [1050459] Funding Source: National Science Foundation
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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.
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