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A phylogenetic test for adaptive convergence in rock-dwelling lizards

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dc.creatorRevell, Liam J.spa
dc.creatorJohnson, Michele A.spa
dc.creatorSchulte II, James A.spa
dc.creatorKolbe, Jason J.spa
dc.creatorLosos, Jonathan B.spa
dc.date.accessioned2020-08-19T14:43:27Z
dc.date.available2020-08-19T14:43:27Z
dc.date.created2007-10-10spa
dc.description.abstractPhenotypic similarity of species occupying similar habitats has long been taken as strong evidence of adaptation, but this approach implicitly assumes that similarity is evolutionarily derived. However, even derived similarities may not represent convergent adaptation if the similarities did not evolve as a result of the same selection pressures; an alternative possibility is that the similar features evolved for different reasons, but subsequently allowed the species to occupy the same habitat, in which case the convergent evolution of the same feature by species occupying similar habitats would be the result of exaptation. Many lizard lineages have evolved to occupy vertical rock surfaces, a habitat that places strong functional and ecological demands on lizards. We examined four clades in which species that use vertical rock surfaces exhibit long hindlimbs and flattened bodies. Morphological change on the phylogenetic branches leading to the rock?dwelling species in the four clades differed from change on other branches of the phylogeny; evolutionary transitions to rock?dwelling generally were associated with increases in limb length and decreases in head depth. Examination of particular characters revealed several different patterns of evolutionary change. Rock?dwelling lizards exhibited similarities in head depth as a result of both adaptation and exaptation. Moreover, even though rock?dwelling species generally had longer limbs than their close relatives, clade?level differences in limb length led to an overall lack of difference between rock? and non–rock?dwelling lizards. These results indicate that evolutionary change in the same direction in independent lineages does not necessarily produce convergence, and that the existence of similar advantageous structures among species independently occupying the same environment may not indicate adaptation.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1111/j.1558-5646.2007.00225.x
dc.identifier.issnISSN: 0014-3820
dc.identifier.issnEISSN: 1558-5646
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/27708
dc.language.isoengspa
dc.publisherSociety for the Study of Evolutionspa
dc.relation.citationEndPage2912
dc.relation.citationIssueNo. 12
dc.relation.citationStartPage2898
dc.relation.citationTitleEvolution: International Journal of Organic Evolution
dc.relation.citationVolumeVol. 61
dc.relation.ispartofEvolution: International Journal of Organic Evolution, ISSN: 0014-3820;EISSN: 1558-5646, Vol.61, No.12 (December 2007); pp. 2898-2912spa
dc.relation.urihttps://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1558-5646.2007.00225.xspa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.sourceEvolution: International Journal of Organic Evolutionspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordCharacter evolutionspa
dc.subject.keywordComparative methodspa
dc.subject.keywordConvergencespa
dc.subject.keywordExaptationspa
dc.subject.keywordParallelismspa
dc.titleA phylogenetic test for adaptive convergence in rock-dwelling lizardsspa
dc.title.TranslatedTitleUna prueba filogenética para la convergencia adaptativa en lagartos que habitan en las rocasspa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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