Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach

Autores
del Castillo, Daniela Laura; Flores, David Alfredo; Cappozzo, Humberto Luis
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aim of this work was to study the postnatal ontogenetic development of Pontoporia blainvillei skull, identifying major changes on shape, and relating them to relevant factors in the life history of the species. We analyzed a complete ontogenetic series (73♂, 83♀) with three-dimensional geometric morphometric techniques. Immature dolphins showed a very well-developed braincase and a poorly developed rostrum, and the principal postnatal changes affected the rostrum and the temporal fossa, both structures implied functionally to the feeding apparatus, thus suggesting a specialized mode for catch fast prey in P. blainvillei. Osseous elements associated with sound production were already well developed on immature dolphins, suggesting the importance of this apparatus since the beginning of postnatal life. Sexual dimorphism was detected on both shape and size variables. Females were bigger than males, in accordance with previous studies. Shape differences between sexes were found on the posterior part of premaxillaries and external bony nares (P<0.01), suggesting that this sexual dimorphism is related to differences on vocalization capabilities.
Fil: del Castillo, Daniela Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
Fil: Flores, David Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
Fil: Cappozzo, Humberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
Materia
GEOMETRIC MORPHOMETRICS
ONTOGENY
PONTOPORIA BLAINVILLEI
SEXUAL DIMORPHISM
SKULL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/84443
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/84443
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approachdel Castillo, Daniela LauraFlores, David AlfredoCappozzo, Humberto LuisGEOMETRIC MORPHOMETRICSONTOGENYPONTOPORIA BLAINVILLEISEXUAL DIMORPHISMSKULLhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The aim of this work was to study the postnatal ontogenetic development of Pontoporia blainvillei skull, identifying major changes on shape, and relating them to relevant factors in the life history of the species. We analyzed a complete ontogenetic series (73♂, 83♀) with three-dimensional geometric morphometric techniques. Immature dolphins showed a very well-developed braincase and a poorly developed rostrum, and the principal postnatal changes affected the rostrum and the temporal fossa, both structures implied functionally to the feeding apparatus, thus suggesting a specialized mode for catch fast prey in P. blainvillei. Osseous elements associated with sound production were already well developed on immature dolphins, suggesting the importance of this apparatus since the beginning of postnatal life. Sexual dimorphism was detected on both shape and size variables. Females were bigger than males, in accordance with previous studies. Shape differences between sexes were found on the posterior part of premaxillaries and external bony nares (P<0.01), suggesting that this sexual dimorphism is related to differences on vocalization capabilities.Fil: del Castillo, Daniela Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; ArgentinaFil: Flores, David Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; ArgentinaFil: Cappozzo, Humberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; ArgentinaWiley-liss, Div John Wiley & Sons Inc2014-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/84443del Castillo, Daniela Laura; Flores, David Alfredo; Cappozzo, Humberto Luis; Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach; Wiley-liss, Div John Wiley & Sons Inc; Journal of Morphology; 275; 12; 12-2014; 1366-13750362-2525CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/jmor.20309info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jmor.20309info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:58:00Zoai:ri.conicet.gov.ar:11336/84443instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:58:01.056CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach
title Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach
spellingShingle Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach
del Castillo, Daniela Laura
GEOMETRIC MORPHOMETRICS
ONTOGENY
PONTOPORIA BLAINVILLEI
SEXUAL DIMORPHISM
SKULL
title_short Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach
title_full Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach
title_fullStr Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach
title_full_unstemmed Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach
title_sort Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach
dc.creator.none.fl_str_mv del Castillo, Daniela Laura
Flores, David Alfredo
Cappozzo, Humberto Luis
author del Castillo, Daniela Laura
author_facet del Castillo, Daniela Laura
Flores, David Alfredo
Cappozzo, Humberto Luis
author_role author
author2 Flores, David Alfredo
Cappozzo, Humberto Luis
author2_role author
author
dc.subject.none.fl_str_mv GEOMETRIC MORPHOMETRICS
ONTOGENY
PONTOPORIA BLAINVILLEI
SEXUAL DIMORPHISM
SKULL
topic GEOMETRIC MORPHOMETRICS
ONTOGENY
PONTOPORIA BLAINVILLEI
SEXUAL DIMORPHISM
SKULL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The aim of this work was to study the postnatal ontogenetic development of Pontoporia blainvillei skull, identifying major changes on shape, and relating them to relevant factors in the life history of the species. We analyzed a complete ontogenetic series (73♂, 83♀) with three-dimensional geometric morphometric techniques. Immature dolphins showed a very well-developed braincase and a poorly developed rostrum, and the principal postnatal changes affected the rostrum and the temporal fossa, both structures implied functionally to the feeding apparatus, thus suggesting a specialized mode for catch fast prey in P. blainvillei. Osseous elements associated with sound production were already well developed on immature dolphins, suggesting the importance of this apparatus since the beginning of postnatal life. Sexual dimorphism was detected on both shape and size variables. Females were bigger than males, in accordance with previous studies. Shape differences between sexes were found on the posterior part of premaxillaries and external bony nares (P<0.01), suggesting that this sexual dimorphism is related to differences on vocalization capabilities.
Fil: del Castillo, Daniela Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
Fil: Flores, David Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
Fil: Cappozzo, Humberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
description The aim of this work was to study the postnatal ontogenetic development of Pontoporia blainvillei skull, identifying major changes on shape, and relating them to relevant factors in the life history of the species. We analyzed a complete ontogenetic series (73♂, 83♀) with three-dimensional geometric morphometric techniques. Immature dolphins showed a very well-developed braincase and a poorly developed rostrum, and the principal postnatal changes affected the rostrum and the temporal fossa, both structures implied functionally to the feeding apparatus, thus suggesting a specialized mode for catch fast prey in P. blainvillei. Osseous elements associated with sound production were already well developed on immature dolphins, suggesting the importance of this apparatus since the beginning of postnatal life. Sexual dimorphism was detected on both shape and size variables. Females were bigger than males, in accordance with previous studies. Shape differences between sexes were found on the posterior part of premaxillaries and external bony nares (P<0.01), suggesting that this sexual dimorphism is related to differences on vocalization capabilities.
publishDate 2014
dc.date.none.fl_str_mv 2014-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/84443
del Castillo, Daniela Laura; Flores, David Alfredo; Cappozzo, Humberto Luis; Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach; Wiley-liss, Div John Wiley & Sons Inc; Journal of Morphology; 275; 12; 12-2014; 1366-1375
0362-2525
CONICET Digital
CONICET
url http://hdl.handle.net/11336/84443
identifier_str_mv del Castillo, Daniela Laura; Flores, David Alfredo; Cappozzo, Humberto Luis; Ontogenetic development and sexual dimorphism of franciscana dolphin skull: A 3D geometric morphometric approach; Wiley-liss, Div John Wiley & Sons Inc; Journal of Morphology; 275; 12; 12-2014; 1366-1375
0362-2525
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/jmor.20309
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jmor.20309
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley-liss, Div John Wiley & Sons Inc
publisher.none.fl_str_mv Wiley-liss, Div John Wiley & Sons Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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