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

Autores
Verzi, Diego Héctor; Álvarez, Alicia; Olivares, Adriana Itatí; Morgan, Cecilia Clara; Vassallo, Aldo I.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Ontogenetic 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.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Craniomandibular traits
Ctenomyid rodents
Ontogenetic allometries
Subterranean habits
Allometry
Cranium
Developmental stage
Functional morphology
Geometry
Habitat type
Identification key
Interspecific variation
Ontogeny
Rodent
Subterranean environment
South America
Ctenomyidae
Ctenomys
Rodentia
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/82408
Acceder
id SEDICI_0a9318ea3ba1e9bb41c10f21093abcf8
oai_identifier_str oai:sedici.unlp.edu.ar:10915/82408
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Ontogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodentsVerzi, Diego HéctorÁlvarez, AliciaOlivares, Adriana ItatíMorgan, Cecilia ClaraVassallo, Aldo I.Ciencias NaturalesCraniomandibular traitsCtenomyid rodentsOntogenetic allometriesSubterranean habitsAllometryCraniumDevelopmental stageFunctional morphologyGeometryHabitat typeIdentification keyInterspecific variationOntogenyRodentSubterranean environmentSouth AmericaCtenomyidaeCtenomysRodentiaOntogenetic 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.Facultad de Ciencias Naturales y Museo2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1508-1516http://sedici.unlp.edu.ar/handle/10915/82408enginfo:eu-repo/semantics/altIdentifier/issn/0022-2372info:eu-repo/semantics/altIdentifier/doi/10.1644/09-MAMM-A-411.1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:56:18Zoai:sedici.unlp.edu.ar:10915/82408Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:56:18.45SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Ontogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodents
title Ontogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodents
spellingShingle Ontogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodents
Verzi, Diego Héctor
Ciencias Naturales
Craniomandibular traits
Ctenomyid rodents
Ontogenetic allometries
Subterranean habits
Allometry
Cranium
Developmental stage
Functional morphology
Geometry
Habitat type
Identification key
Interspecific variation
Ontogeny
Rodent
Subterranean environment
South America
Ctenomyidae
Ctenomys
Rodentia
title_short Ontogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodents
title_full Ontogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodents
title_fullStr Ontogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodents
title_full_unstemmed Ontogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodents
title_sort Ontogenetic trajectories of key morphofunctional cranial traits in South American subterranean ctenomyid rodents
dc.creator.none.fl_str_mv Verzi, Diego Héctor
Álvarez, Alicia
Olivares, Adriana Itatí
Morgan, Cecilia Clara
Vassallo, Aldo I.
author Verzi, Diego Héctor
author_facet Verzi, Diego Héctor
Álvarez, Alicia
Olivares, Adriana Itatí
Morgan, Cecilia Clara
Vassallo, Aldo I.
author_role author
author2 Álvarez, Alicia
Olivares, Adriana Itatí
Morgan, Cecilia Clara
Vassallo, Aldo I.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Craniomandibular traits
Ctenomyid rodents
Ontogenetic allometries
Subterranean habits
Allometry
Cranium
Developmental stage
Functional morphology
Geometry
Habitat type
Identification key
Interspecific variation
Ontogeny
Rodent
Subterranean environment
South America
Ctenomyidae
Ctenomys
Rodentia
topic Ciencias Naturales
Craniomandibular traits
Ctenomyid rodents
Ontogenetic allometries
Subterranean habits
Allometry
Cranium
Developmental stage
Functional morphology
Geometry
Habitat type
Identification key
Interspecific variation
Ontogeny
Rodent
Subterranean environment
South America
Ctenomyidae
Ctenomys
Rodentia
dc.description.none.fl_txt_mv Ontogenetic 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.
Facultad de Ciencias Naturales y Museo
description Ontogenetic 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.
publishDate 2010
dc.date.none.fl_str_mv 2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/82408
url http://sedici.unlp.edu.ar/handle/10915/82408
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0022-2372
info:eu-repo/semantics/altIdentifier/doi/10.1644/09-MAMM-A-411.1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
1508-1516
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.982451

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