Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy

Autores
Chemisquy, Maria Amelia; Prevosti, Francisco Juan; Martin, Gabriel Mario; Flores, David Alfredo
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The diversity of items consumed by modern didelphids, varying from mostly fruits in Caluromys Allen to mostly small vertebrates in Lutreolina O. Thomas, may cause changes in molar size and shape. We evaluated the morphometric variation of the first and third upper and lower molars of 16 genera of didelphid marsupials, with the aim of assessing the relationship between molar shape change, diet and phylogeny. We used a geometric morphometric approach to analyse how shape changes with diet. We mapped shape onto the phylogeny of the group to reconstruct ancestral states and analyse the evolution of molar shape. Finally, we Statistically estimated the effect of size, diet and phylogeny on molar shape. All the analyses indicated little correlation between diet and molar shape and a strong correlation between the position of each genus on the phylogeny and molar shape. We believe that the wide ecological niche used by most of the groups (at least regarding diet) makes the evolutionary changes not strong enough to override pre-existing differences that occur among clades, and the absence of highly diet-specialized species (e.g. hypercarnivory or obligate folivory) causes the need for retaining a molar shape that can be useful to process different kinds of food items.
Fil: Chemisquy, Maria Amelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Prevosti, Francisco Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad Nacional de Luján; Argentina
Fil: Martin, Gabriel Mario. Universidad Nacional de la Patagonia "san Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Laboratorio de Investigaciones En Evolución y Biodiversidad; 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
Materia
Canonical Phylogenetic Ordination
Evolutionary Constrains
Geometric Morphometrics
Shape Optimization
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:11336/16864
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/16864
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacyChemisquy, Maria AmeliaPrevosti, Francisco JuanMartin, Gabriel MarioFlores, David AlfredoCanonical Phylogenetic OrdinationEvolutionary ConstrainsGeometric MorphometricsShape Optimizationhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The diversity of items consumed by modern didelphids, varying from mostly fruits in Caluromys Allen to mostly small vertebrates in Lutreolina O. Thomas, may cause changes in molar size and shape. We evaluated the morphometric variation of the first and third upper and lower molars of 16 genera of didelphid marsupials, with the aim of assessing the relationship between molar shape change, diet and phylogeny. We used a geometric morphometric approach to analyse how shape changes with diet. We mapped shape onto the phylogeny of the group to reconstruct ancestral states and analyse the evolution of molar shape. Finally, we Statistically estimated the effect of size, diet and phylogeny on molar shape. All the analyses indicated little correlation between diet and molar shape and a strong correlation between the position of each genus on the phylogeny and molar shape. We believe that the wide ecological niche used by most of the groups (at least regarding diet) makes the evolutionary changes not strong enough to override pre-existing differences that occur among clades, and the absence of highly diet-specialized species (e.g. hypercarnivory or obligate folivory) causes the need for retaining a molar shape that can be useful to process different kinds of food items.Fil: Chemisquy, Maria Amelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Prevosti, Francisco Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad Nacional de Luján; ArgentinaFil: Martin, Gabriel Mario. Universidad Nacional de la Patagonia "san Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Laboratorio de Investigaciones En Evolución y Biodiversidad; ArgentinaFil: Flores, David Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "bernardino Rivadavia"; ArgentinaOxford University Press2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/16864Chemisquy, Maria Amelia; Prevosti, Francisco Juan; Martin, Gabriel Mario; Flores, David Alfredo; Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy; Oxford University Press; Zoological Journal Of The Linnean Society; 173; 1-2014; 217-2350024-4082enginfo:eu-repo/semantics/altIdentifier/doi/10.1111/zoj.12205info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/zoj.12205info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:06:56Zoai:ri.conicet.gov.ar:11336/16864instacron: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:34982025-09-10 13:06:56.862CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy
title Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy
spellingShingle Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy
Chemisquy, Maria Amelia
Canonical Phylogenetic Ordination
Evolutionary Constrains
Geometric Morphometrics
Shape Optimization
title_short Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy
title_full Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy
title_fullStr Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy
title_full_unstemmed Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy
title_sort Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy
dc.creator.none.fl_str_mv Chemisquy, Maria Amelia
Prevosti, Francisco Juan
Martin, Gabriel Mario
Flores, David Alfredo
author Chemisquy, Maria Amelia
author_facet Chemisquy, Maria Amelia
Prevosti, Francisco Juan
Martin, Gabriel Mario
Flores, David Alfredo
author_role author
author2 Prevosti, Francisco Juan
Martin, Gabriel Mario
Flores, David Alfredo
author2_role author
author
author
dc.subject.none.fl_str_mv Canonical Phylogenetic Ordination
Evolutionary Constrains
Geometric Morphometrics
Shape Optimization
topic Canonical Phylogenetic Ordination
Evolutionary Constrains
Geometric Morphometrics
Shape Optimization
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 diversity of items consumed by modern didelphids, varying from mostly fruits in Caluromys Allen to mostly small vertebrates in Lutreolina O. Thomas, may cause changes in molar size and shape. We evaluated the morphometric variation of the first and third upper and lower molars of 16 genera of didelphid marsupials, with the aim of assessing the relationship between molar shape change, diet and phylogeny. We used a geometric morphometric approach to analyse how shape changes with diet. We mapped shape onto the phylogeny of the group to reconstruct ancestral states and analyse the evolution of molar shape. Finally, we Statistically estimated the effect of size, diet and phylogeny on molar shape. All the analyses indicated little correlation between diet and molar shape and a strong correlation between the position of each genus on the phylogeny and molar shape. We believe that the wide ecological niche used by most of the groups (at least regarding diet) makes the evolutionary changes not strong enough to override pre-existing differences that occur among clades, and the absence of highly diet-specialized species (e.g. hypercarnivory or obligate folivory) causes the need for retaining a molar shape that can be useful to process different kinds of food items.
Fil: Chemisquy, Maria Amelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Prevosti, Francisco Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad Nacional de Luján; Argentina
Fil: Martin, Gabriel Mario. Universidad Nacional de la Patagonia "san Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Laboratorio de Investigaciones En Evolución y Biodiversidad; 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
description The diversity of items consumed by modern didelphids, varying from mostly fruits in Caluromys Allen to mostly small vertebrates in Lutreolina O. Thomas, may cause changes in molar size and shape. We evaluated the morphometric variation of the first and third upper and lower molars of 16 genera of didelphid marsupials, with the aim of assessing the relationship between molar shape change, diet and phylogeny. We used a geometric morphometric approach to analyse how shape changes with diet. We mapped shape onto the phylogeny of the group to reconstruct ancestral states and analyse the evolution of molar shape. Finally, we Statistically estimated the effect of size, diet and phylogeny on molar shape. All the analyses indicated little correlation between diet and molar shape and a strong correlation between the position of each genus on the phylogeny and molar shape. We believe that the wide ecological niche used by most of the groups (at least regarding diet) makes the evolutionary changes not strong enough to override pre-existing differences that occur among clades, and the absence of highly diet-specialized species (e.g. hypercarnivory or obligate folivory) causes the need for retaining a molar shape that can be useful to process different kinds of food items.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
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/11336/16864
Chemisquy, Maria Amelia; Prevosti, Francisco Juan; Martin, Gabriel Mario; Flores, David Alfredo; Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy; Oxford University Press; Zoological Journal Of The Linnean Society; 173; 1-2014; 217-235
0024-4082
url http://hdl.handle.net/11336/16864
identifier_str_mv Chemisquy, Maria Amelia; Prevosti, Francisco Juan; Martin, Gabriel Mario; Flores, David Alfredo; Evolution of molar shape in didelphid marsupials: analysis of the influence of ecological factors and the phylogenetic legacy; Oxford University Press; Zoological Journal Of The Linnean Society; 173; 1-2014; 217-235
0024-4082
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/zoj.12205
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/zoj.12205
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
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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
_version_ 1842980299799003136
score 12.993085

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