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dc.creatorSánchez Quirós, Catalina
dc.creatorArévalo Hernández, José Edgardo
dc.creatorBarrantes Montero, Gilbert
dc.date.accessioned2019-09-10T21:54:27Z
dc.date.available2019-09-10T21:54:27Z
dc.date.issued2012
dc.identifier.issn0160-8202
dc.identifier.urihttp://hdl.handle.net/10669/79057
dc.description.abstractAbstract. Animal body traits are scaled relative to overall body size depending on the evolutionary context. Most naturally selected traits are scaled approximately isometrically (constitute a constant proportion of the body size at different body sizes), whereas those under sexual selection tend to present positive static allometry (be proportionally larger in larger individuals). However, there are body traits that might be influenced by both natural and sexual selection. We studied the courtship behavior of the scorpion Centruroides margaritatus (Gervais 1841) and analyzed the static allometry of several body traits. We hypothesized that those traits that were actively used in courtship and seemed to be sexually dimorphic could be under sexual selection. The main sexually dimorphic traits were body size (female larger) and metasoma length (male longer). Although metasoma length of males had a steeper allometric slope (larger males had longer metasoma) than that of females, the slopes did not differ significantly. All body traits measured showed isometry with body size, except that the pecten presented negative allometry in males. Thus the length of the metasoma of males, thought to be influenced by sexual rather than natural selection, did not present positive allometry as expected. Males used the metasoma actively while courting females.en
dc.language.isoen
dc.sourceJournal of Arachnology 40(3):338-344
dc.subjectCourtship behavioren
dc.subjectisometryen
dc.subjectsexual selectionen
dc.subjectnatural selectionen
dc.titleStatic allometry and sexual size dimorphism in Centruroides margaritatus (Scorpiones: Buthidae)en
dc.typeinfo:eu-repo/semantics/article
dc.typeArtículo científico
dc.identifier.doi10.1636/B12-14.1
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Biología
dc.description.procedenceDepartment of Biology, University of Miami


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