Ontogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodents

dc.creatorVerzi, Diego Héctor
dc.creatorÁlvarez, Alicia
dc.creatorOlivares, Adriana Itatí
dc.creatorMorgan, Cecilia Clara
dc.creatorVassallo, Aldo I.
dc.date2010
dc.date2019-10-01T15:20:32Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/82408
dc.identifierissn:0022-2372
dc.descriptionOntogenetic allometries of craniomandibular and dental features linked to digging were analyzed in 5 species of the South American subterranean rodent Ctenomys (tuco-tucos). With the exception of upper incisor procumbency, variables showed high correlation with overall skull size. In particular, craniomandibular variables related to the production of bite forces at the incisors showed near-geometric similarity during postnatal growth and interspecific changes in early developmental stages resulting in different starting forms (lateral transposition). Such an interspecific pattern of change is similar to one previously reported to occur among living and extinct ctenomyid genera. These results suggest more evolutionary flexibility for changes in early ontogenetic stages and allow rejection of the hypothesis that interspecific shape differences in the skull of Ctenomys would be associated with differences in size alone.
dc.descriptionFacultad de Ciencias Naturales y Museo
dc.formatapplication/pdf
dc.format1508-1516
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Naturales
dc.subjectCraniomandibular traits
dc.subjectCtenomyid rodents
dc.subjectOntogenetic allometries
dc.subjectSubterranean habits
dc.subjectAllometry
dc.subjectCranium
dc.subjectDevelopmental stage
dc.subjectFunctional morphology
dc.subjectGeometry
dc.subjectHabitat type
dc.subjectIdentification key
dc.subjectInterspecific variation
dc.subjectOntogeny
dc.subjectRodent
dc.subjectSubterranean environment
dc.subjectSouth America
dc.subjectCtenomyidae
dc.subjectCtenomys
dc.subjectRodentia
dc.titleOntogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodents
dc.typeArticulo
dc.typeArticulo


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