Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)

Autores
Martínez, Juan José; Di Cola Bucciarelli, Valeria
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The interspecific differentiation of South American rodents of the genus Graomys was assayed at ecological and morphometric levels in two species. At the ecological level, niche modelling was used. At the morphometric level, the hypothesis that the size and shape of the skull vary with the geographic location was tested using geometric morphometrics by assessing the extent and spatial distribution of phenotypic skull variation within and among two species, Graomys griseoflavus and Graomys chacoensis. Our results of niche modelling indicate the spatial differentiation between the two species, with G. chacoensis inhabiting preferably the Chaco ecoregion and G. griseoflavus inhabiting mainly the Monte ecoregion. In multiple linear regressions, approximately 20% of the skull size variation is explained by latitude, altitude, and temperature seasonality. The partial least square analysis reveals strong correlation between shape and environmental variables, mainly with latitude, annual mean temperature, and annual precipitation. Discrimination between G. griseoflavus and G. chacoensis was highly reliable when using geometric morphometric tools. These results permit us to elucidate some evolutionary processes that have occurred in these species.
Fil: Martínez, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Jujuy. Universidad Nacional de Jujuy. Centro de Investigaciones y Transferencia de Jujuy; Argentina
Fil: Di Cola Bucciarelli, Valeria. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Diversidad Biológica y Ecológica. Cátedra de Biología del Comportam. y Div. Animal Ii; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
ENVIRONMENTAL CORRELATIONS
GEOMETRIC MORPHOMETRICS
GRAOMYS
MULTIVARIATE ANALYSIS
NICHE MODELLING
PHENOTYPIC VARIATION
SIGMODONTINAE
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:11336/194376
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/194376
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)Martínez, Juan JoséDi Cola Bucciarelli, ValeriaENVIRONMENTAL CORRELATIONSGEOMETRIC MORPHOMETRICSGRAOMYSMULTIVARIATE ANALYSISNICHE MODELLINGPHENOTYPIC VARIATIONSIGMODONTINAEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The interspecific differentiation of South American rodents of the genus Graomys was assayed at ecological and morphometric levels in two species. At the ecological level, niche modelling was used. At the morphometric level, the hypothesis that the size and shape of the skull vary with the geographic location was tested using geometric morphometrics by assessing the extent and spatial distribution of phenotypic skull variation within and among two species, Graomys griseoflavus and Graomys chacoensis. Our results of niche modelling indicate the spatial differentiation between the two species, with G. chacoensis inhabiting preferably the Chaco ecoregion and G. griseoflavus inhabiting mainly the Monte ecoregion. In multiple linear regressions, approximately 20% of the skull size variation is explained by latitude, altitude, and temperature seasonality. The partial least square analysis reveals strong correlation between shape and environmental variables, mainly with latitude, annual mean temperature, and annual precipitation. Discrimination between G. griseoflavus and G. chacoensis was highly reliable when using geometric morphometric tools. These results permit us to elucidate some evolutionary processes that have occurred in these species.Fil: Martínez, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Jujuy. Universidad Nacional de Jujuy. Centro de Investigaciones y Transferencia de Jujuy; ArgentinaFil: Di Cola Bucciarelli, Valeria. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Diversidad Biológica y Ecológica. Cátedra de Biología del Comportam. y Div. Animal Ii; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Gmbh2011-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/194376Martínez, Juan José; Di Cola Bucciarelli, Valeria; Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae); Elsevier Gmbh; Zoologischer Anzeiger; 250; 3; 8-2011; 175-1940044-5231CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0044523111000180info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcz.2011.03.001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:25:16Zoai:ri.conicet.gov.ar:11336/194376instacron: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:34982025-09-29 10:25:17.103CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)
title Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)
spellingShingle Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)
Martínez, Juan José
ENVIRONMENTAL CORRELATIONS
GEOMETRIC MORPHOMETRICS
GRAOMYS
MULTIVARIATE ANALYSIS
NICHE MODELLING
PHENOTYPIC VARIATION
SIGMODONTINAE
title_short Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)
title_full Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)
title_fullStr Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)
title_full_unstemmed Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)
title_sort Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)
dc.creator.none.fl_str_mv Martínez, Juan José
Di Cola Bucciarelli, Valeria
author Martínez, Juan José
author_facet Martínez, Juan José
Di Cola Bucciarelli, Valeria
author_role author
author2 Di Cola Bucciarelli, Valeria
author2_role author
dc.subject.none.fl_str_mv ENVIRONMENTAL CORRELATIONS
GEOMETRIC MORPHOMETRICS
GRAOMYS
MULTIVARIATE ANALYSIS
NICHE MODELLING
PHENOTYPIC VARIATION
SIGMODONTINAE
topic ENVIRONMENTAL CORRELATIONS
GEOMETRIC MORPHOMETRICS
GRAOMYS
MULTIVARIATE ANALYSIS
NICHE MODELLING
PHENOTYPIC VARIATION
SIGMODONTINAE
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 interspecific differentiation of South American rodents of the genus Graomys was assayed at ecological and morphometric levels in two species. At the ecological level, niche modelling was used. At the morphometric level, the hypothesis that the size and shape of the skull vary with the geographic location was tested using geometric morphometrics by assessing the extent and spatial distribution of phenotypic skull variation within and among two species, Graomys griseoflavus and Graomys chacoensis. Our results of niche modelling indicate the spatial differentiation between the two species, with G. chacoensis inhabiting preferably the Chaco ecoregion and G. griseoflavus inhabiting mainly the Monte ecoregion. In multiple linear regressions, approximately 20% of the skull size variation is explained by latitude, altitude, and temperature seasonality. The partial least square analysis reveals strong correlation between shape and environmental variables, mainly with latitude, annual mean temperature, and annual precipitation. Discrimination between G. griseoflavus and G. chacoensis was highly reliable when using geometric morphometric tools. These results permit us to elucidate some evolutionary processes that have occurred in these species.
Fil: Martínez, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Jujuy. Universidad Nacional de Jujuy. Centro de Investigaciones y Transferencia de Jujuy; Argentina
Fil: Di Cola Bucciarelli, Valeria. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Diversidad Biológica y Ecológica. Cátedra de Biología del Comportam. y Div. Animal Ii; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description The interspecific differentiation of South American rodents of the genus Graomys was assayed at ecological and morphometric levels in two species. At the ecological level, niche modelling was used. At the morphometric level, the hypothesis that the size and shape of the skull vary with the geographic location was tested using geometric morphometrics by assessing the extent and spatial distribution of phenotypic skull variation within and among two species, Graomys griseoflavus and Graomys chacoensis. Our results of niche modelling indicate the spatial differentiation between the two species, with G. chacoensis inhabiting preferably the Chaco ecoregion and G. griseoflavus inhabiting mainly the Monte ecoregion. In multiple linear regressions, approximately 20% of the skull size variation is explained by latitude, altitude, and temperature seasonality. The partial least square analysis reveals strong correlation between shape and environmental variables, mainly with latitude, annual mean temperature, and annual precipitation. Discrimination between G. griseoflavus and G. chacoensis was highly reliable when using geometric morphometric tools. These results permit us to elucidate some evolutionary processes that have occurred in these species.
publishDate 2011
dc.date.none.fl_str_mv 2011-08
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/11336/194376
Martínez, Juan José; Di Cola Bucciarelli, Valeria; Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae); Elsevier Gmbh; Zoologischer Anzeiger; 250; 3; 8-2011; 175-194
0044-5231
CONICET Digital
CONICET
url http://hdl.handle.net/11336/194376
identifier_str_mv Martínez, Juan José; Di Cola Bucciarelli, Valeria; Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae); Elsevier Gmbh; Zoologischer Anzeiger; 250; 3; 8-2011; 175-194
0044-5231
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0044523111000180
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcz.2011.03.001
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
dc.publisher.none.fl_str_mv Elsevier Gmbh
publisher.none.fl_str_mv Elsevier Gmbh
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 13.070432

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