Geometric morphometrics reveals sex-differential shape allometry in a spider

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dc.contributor.author Fernández Montraveta, Carmen
dc.contributor.author Marugán Lobón, Jesús
dc.contributor.other UAM. Departamento de Biología es_ES
dc.contributor.other UAM. Departamento de Psicología Biológica y de la Salud es_ES
dc.date.accessioned 2018-02-06T12:47:43Z
dc.date.available 2018-02-06T12:47:43Z
dc.date.issued 2017-07-26
dc.identifier.citation PeerJ 5 (2017): e3617 es_ES
dc.identifier.issn 2167-8359 (online) en_US
dc.identifier.uri http://hdl.handle.net/10486/681094
dc.description.abstract Common scientific wisdom assumes that spider sexual dimorphism (SD) mostly results from sexual selection operating on males. However, testing predictions from this hypothesis, particularly male size hyperallometry, has been restricted by methodological constraints. Here, using geometric morphometrics (GMM) we studied for the first time sex-differential shape allometry in a spider (Donacosa merlini, Araneae: Lycosidae) known to exhibit the reverse pattern (i.e., male-biased) of spider sexual size dimorphism. GMM reveals previously undetected sexdifferential shape allometry and sex-related shape differences that are size independent (i.e., associated to the y-intercept, and not to size scaling). Sexual shape dimorphism affects both the relative carapace-to-opisthosoma size and the carapace geometry, arguably resulting from sex differences in both reproductive roles (female egg load and male competition) and life styles (wandering males and burrowing females). Our results demonstrate that body portions may vary modularly in response to different selection pressures, giving rise to sex differences in shape, which reconciles previously considered mutually exclusive interpretations about the origins of spider SD en_US
dc.description.sponsorship The fieldwork was financially supported by the Ministerio de Ciencia e Innovación and the Consejo Superior de Investigaciones Científicas to CFM (022/2007). JML is endorsed by project CGL2013-42643-P en_US
dc.format.extent 16 pag. es_ES
dc.format.mimetype application/pdf en_US
dc.language.iso eng en_US
dc.publisher PeerJ Inc. en_US
dc.relation.ispartof PeerJ en_US
dc.rights Copyright 2017 Fernández-Montraveta and Marugán-Lobón en_US
dc.subject.other Animal behavior en_US
dc.subject.other Evolutionary studies en_US
dc.subject.other Sexual size dimorphism en_US
dc.subject.other Allometry en_US
dc.subject.other Sexual selection en_US
dc.subject.other Spiders en_US
dc.subject.other Donacosa merlini en_US
dc.subject.other Doñana es_ES
dc.title Geometric morphometrics reveals sex-differential shape allometry in a spider en_US
dc.type article en_US
dc.subject.eciencia Biología y Biomedicina / Biología es_ES
dc.identifier.doi 10.7717/peerj.3617 es_ES
dc.identifier.publicationfirstpage e3617-1 es_ES
dc.identifier.publicationlastpage e3617-16 es_ES
dc.identifier.publicationvolume 5 es_ES
dc.relation.projectID Gobierno de España. CGL2013-42643-P es_ES
dc.type.version info:eu-repo/semantics/publishedVersion en_US
dc.rights.cc Reconocimiento es_ES
dc.rights.accessRights openAccess en_US
dc.authorUAM Fernández Montraveta, Carmen (259755)
dc.authorUAM Marugán Lobón, Jesús Carlos (261303)


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