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Sexual dimorphism in primate aerobic capacity: a phylogenetic test

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dc.creatorLindenfors, P.spa
dc.creatorRevell, L. J.spa
dc.creatorNunn, C. L.spa
dc.date.accessioned2020-08-19T14:40:34Z
dc.date.available2020-08-19T14:40:34Z
dc.date.created2010-05-13spa
dc.description.abstractMale intrasexual competition should favour increased male physical prowess. This should in turn result in greater aerobic capacity in males than in females (i.e. sexual dimorphism) and a correlation between sexual dimorphism in aerobic capacity and the strength of sexual selection among species. However, physiological scaling laws predict that aerobic capacity should be lower per unit body mass in larger than in smaller animals, potentially reducing or reversing the sex difference and its association with measures of sexual selection. We used measures of haematocrit and red blood cell (RBC) counts from 45 species of primates to test four predictions related to sexual selection and body mass: (i) on average, males should have higher aerobic capacity than females, (ii) aerobic capacity should be higher in adult than juvenile males, (iii) aerobic capacity should increase with increasing sexual selection, but also that (iv) measures of aerobic capacity should co?vary negatively with body mass. For the first two predictions, we used a phylogenetic paired t?test developed for this study. We found support for predictions (i) and (ii). For prediction (iii), however, we found a negative correlation between the degree of sexual selection and aerobic capacity, which was opposite to our prediction. Prediction (iv) was generally supported. We also investigated whether substrate use, basal metabolic rate and agility influenced physiological measures of oxygen transport, but we found only weak evidence for a correlation between RBC count and agility.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1111/j.1420-9101.2010.01983.x
dc.identifier.issnISSN: 1010-061X
dc.identifier.issnEISSN: 1420-9101
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/26941
dc.language.isoengspa
dc.publisherEuropean Society for Evolutionary Biologyspa
dc.relation.citationEndPage1194
dc.relation.citationIssueNo. 6
dc.relation.citationStartPage1183
dc.relation.citationTitleJournal of Evolutionary Biology
dc.relation.citationVolumeVol. 23
dc.relation.ispartofJournal of Evolutionary Biology, ISSN: 1010-061X;EISSN: 1420-9101, Vol.23, No.6 (June 2010); pp. 1183-1194spa
dc.relation.urihttps://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1420-9101.2010.01983.xspa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.sourceJournal of Evolutionary Biologyspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordHaematocritspa
dc.subject.keywordPhylogenetic comparative methodspa
dc.subject.keywordPhylogenetic t?testspa
dc.subject.keywordRed blood cellsspa
dc.subject.keywordSexual selectionspa
dc.titleSexual dimorphism in primate aerobic capacity: a phylogenetic testspa
dc.title.TranslatedTitleDimorfismo sexual en la capacidad aeróbica de primates: una prueba filogenéticaspa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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