Phenotypic differentiation is associated with divergent sexual selection among closely related barn swallow populations

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dc.contributor.authorWilkins, Matthew R.
dc.contributor.authorKaraardıç, Hakan
dc.contributor.authorVortman, Yoni
dc.contributor.authorParchman, Thomas L.
dc.contributor.authorAlbrecht, Tomas
dc.contributor.authorPetrzelkova, Adela
dc.contributor.authorSafran, Rebecca J.
dc.date.accessioned2021-02-19T21:16:21Z
dc.date.available2021-02-19T21:16:21Z
dc.date.issued2016
dc.departmentALKÜ
dc.descriptionAlbrecht, Tomas/0000-0002-9213-0034; Hubbard, Joanna/0000-0002-7234-8001; Wilkins, Matthew/0000-0002-3162-6749; Karaardic, Hakan/0000-0001-9839-4201
dc.description.abstractSexual selection plays a key role in the diversification of numerous animal clades and may accelerate trait divergence during speciation. However, much of our understanding of this process comes from phylogenetic comparative studies, which rely on surrogate measures such as dimorphism that may not represent selection in wild populations. In this study, we assess sexual selection pressures for multiple male visual signals across four barn swallow (Hirundo rustica) populations. Our sample encompassed 2400 linear km and two described subspecies: European H. r. rustica (in the Czech Republic and Romania) and eastern Mediterranean H. r. transitiva (in Israel), as well as a potential area of contact (in Turkey). We demonstrate significant phenotypic differentiation in four sexual signalling axes, despite very low-level genomic divergence and no comparable divergence in an ecological trait. Moreover, the direction of phenotypic divergence is consistent with differences in sexual selection pressures among subspecies. Thus, H. r. transitiva, which have the darkest ventral plumage of any population, experience directional selection for darker plumage. Similarly, H. r. rustica, which have the longest tail feathers of any population, experience directional selection for elongated tail feathers and disruptive selection for ventral plumage saturation. These results suggest that sexual selection is the primary driver of phenotypic differentiation in this species. Our findings add to growing evidence of phenotypic divergence with gene flow. However, to our knowledge, this is the first study to relate direct measures of the strength and targets of sexual selection to phenotypic divergence among closely related wild populations.
dc.description.sponsorshipAmerican Ornithologists' Union: Alexander Wetmore Research Award; CU EBIO Department; NSF Graduate Research Fellowship ProgramNational Science Foundation (NSF); National Science FoundationNational Science Foundation (NSF) [IOS-0717421, DEB-CAREER 1149942]; University of Colorado; Israel Science Foundation (ISF)Israel Science Foundation [1181/07]; Janos Bolyai Research Scholarship of the Hungarian Academy of SciencesHungarian Academy of Sciences; Ministry of Education, Youth and Sports of the Czech RepublicMinistry of Education, Youth & Sports - Czech Republic [LH14045]; American Museum of Natural History Frank M. Chapman Memorial Fund
dc.description.sponsorshipField assistance was provided by Ozgun Eker and Leyla Kaplan in Turkey; Oldrich Tomasek, Romana Michalkova, Martina Soudkova, Natalie Prekopova, and Lucie Jancikova in the Czech Republic; Zoltan Benko and Gergely Osvath in Romania; and Yair Kopelma in Israel. We thank the Behavior Reading Group at UNL and two anonymous reviewers for helpful comments on the manuscript. This work was funded in part by an American Ornithologists' Union: Alexander Wetmore Research Award and graduate research funding from the CU EBIO Department (to MRW). MRW was supported by the NSF Graduate Research Fellowship Program. RJS was funded by the National Science Foundation (IOS-0717421 and DEB-CAREER 1149942) and the University of Colorado. Work in Israel was funded by the Israel Science Foundation (ISF grant number 1181/07 to Arnon Lotem). PLP was financed by the Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences. Work in Turkey was conducted with permission of the General Directorate of Nature Conservation and National Parks. Work in the Czech Republic was funded by the Ministry of Education, Youth and Sports of the Czech Republic (project LH14045) (to TA), and by the American Museum of Natural History Frank M. Chapman Memorial Fund (to JKH).
dc.identifier.doi10.1111/jeb.12965
dc.identifier.endpage2421en_US
dc.identifier.issn1010-061X
dc.identifier.issn1420-9101
dc.identifier.issue12en_US
dc.identifier.pmid27538265
dc.identifier.scopusqualityQ2
dc.identifier.startpage2410en_US
dc.identifier.urihttps://doi.org/10.1111/jeb.12965
dc.identifier.urihttps://hdl.handle.net/20.500.12868/393
dc.identifier.volume29en_US
dc.identifier.wosWOS:000389844700006
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthor0-belirlenecek
dc.language.isoen
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Evolutionary Biology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectbirds
dc.subjectnatural selection
dc.subjectpopulation genetics
dc.subjectsexual selection & conflicts
dc.subjectspeciation
dc.titlePhenotypic differentiation is associated with divergent sexual selection among closely related barn swallow populations
dc.typeArticle

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