Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina

Autores
Cazzaniga, Néstor Jorge; Piza, Julia; Ghezzi, Natalia S.
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Plagiodontes patagonicus (d'Orbigny, 1835) is a quite variable species endemic to southern Buenos Aires province (Argentina). Its taxonomic characterization did not include any quantitative analysis of variability for an accurate discrimination, and the extremes of its variation were described as different subspecies or species. In this paper, shell measurements and angles, and quantitative data on the terminal male genitalia were studied by Principal Component Analysis and Varimax multivariate analysis. Typical Plagiodontes patagonicus and the largest form known as P. patagonicus magnus Hylton-Scott, 1951 showed an almost continuous pattern of shell variation, which is positively correlated with the altitude gradient over their geographical range, which in turn is correlated with a rainfall gradient, i.e. they constitute a size-form cline that does not allow objective delimitation of different morphospecies. Data from the genital system were also arranged as a geographical gradient within the P. patagonicus patagonicus-P. patagonicus magnus continuum. The variability of protoconch sculpture and apertural teeth also indicate recognition of them as a single taxon.
Fil: Cazzaniga, Néstor Jorge. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Piza, Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Ghezzi, Natalia S.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Materia
CLINE
GENITAL ANATOMY
GEOGRAPHICAL VARIATION
MORPHOMETRY
PLAGIODONTES PATAGONICUS
TAXONOMY
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:11336/97452
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from ArgentinaCazzaniga, Néstor JorgePiza, JuliaGhezzi, Natalia S.CLINEGENITAL ANATOMYGEOGRAPHICAL VARIATIONMORPHOMETRYPLAGIODONTES PATAGONICUSTAXONOMYhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Plagiodontes patagonicus (d'Orbigny, 1835) is a quite variable species endemic to southern Buenos Aires province (Argentina). Its taxonomic characterization did not include any quantitative analysis of variability for an accurate discrimination, and the extremes of its variation were described as different subspecies or species. In this paper, shell measurements and angles, and quantitative data on the terminal male genitalia were studied by Principal Component Analysis and Varimax multivariate analysis. Typical Plagiodontes patagonicus and the largest form known as P. patagonicus magnus Hylton-Scott, 1951 showed an almost continuous pattern of shell variation, which is positively correlated with the altitude gradient over their geographical range, which in turn is correlated with a rainfall gradient, i.e. they constitute a size-form cline that does not allow objective delimitation of different morphospecies. Data from the genital system were also arranged as a geographical gradient within the P. patagonicus patagonicus-P. patagonicus magnus continuum. The variability of protoconch sculpture and apertural teeth also indicate recognition of them as a single taxon.Fil: Cazzaniga, Néstor Jorge. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Piza, Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Ghezzi, Natalia S.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaTaylor & Francis Ltd2005-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/97452Cazzaniga, Néstor Jorge; Piza, Julia; Ghezzi, Natalia S.; Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina; Taylor & Francis Ltd; Journal of Natural History; 39; 24; 12-2005; 2203-22160022-2933CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/00222930400004578info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/00222930400004578info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:56Zoai:ri.conicet.gov.ar:11336/97452instacron: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 09:45:56.837CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina
title Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina
spellingShingle Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina
Cazzaniga, Néstor Jorge
CLINE
GENITAL ANATOMY
GEOGRAPHICAL VARIATION
MORPHOMETRY
PLAGIODONTES PATAGONICUS
TAXONOMY
title_short Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina
title_full Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina
title_fullStr Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina
title_full_unstemmed Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina
title_sort Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina
dc.creator.none.fl_str_mv Cazzaniga, Néstor Jorge
Piza, Julia
Ghezzi, Natalia S.
author Cazzaniga, Néstor Jorge
author_facet Cazzaniga, Néstor Jorge
Piza, Julia
Ghezzi, Natalia S.
author_role author
author2 Piza, Julia
Ghezzi, Natalia S.
author2_role author
author
dc.subject.none.fl_str_mv CLINE
GENITAL ANATOMY
GEOGRAPHICAL VARIATION
MORPHOMETRY
PLAGIODONTES PATAGONICUS
TAXONOMY
topic CLINE
GENITAL ANATOMY
GEOGRAPHICAL VARIATION
MORPHOMETRY
PLAGIODONTES PATAGONICUS
TAXONOMY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Plagiodontes patagonicus (d'Orbigny, 1835) is a quite variable species endemic to southern Buenos Aires province (Argentina). Its taxonomic characterization did not include any quantitative analysis of variability for an accurate discrimination, and the extremes of its variation were described as different subspecies or species. In this paper, shell measurements and angles, and quantitative data on the terminal male genitalia were studied by Principal Component Analysis and Varimax multivariate analysis. Typical Plagiodontes patagonicus and the largest form known as P. patagonicus magnus Hylton-Scott, 1951 showed an almost continuous pattern of shell variation, which is positively correlated with the altitude gradient over their geographical range, which in turn is correlated with a rainfall gradient, i.e. they constitute a size-form cline that does not allow objective delimitation of different morphospecies. Data from the genital system were also arranged as a geographical gradient within the P. patagonicus patagonicus-P. patagonicus magnus continuum. The variability of protoconch sculpture and apertural teeth also indicate recognition of them as a single taxon.
Fil: Cazzaniga, Néstor Jorge. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Piza, Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Ghezzi, Natalia S.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
description Plagiodontes patagonicus (d'Orbigny, 1835) is a quite variable species endemic to southern Buenos Aires province (Argentina). Its taxonomic characterization did not include any quantitative analysis of variability for an accurate discrimination, and the extremes of its variation were described as different subspecies or species. In this paper, shell measurements and angles, and quantitative data on the terminal male genitalia were studied by Principal Component Analysis and Varimax multivariate analysis. Typical Plagiodontes patagonicus and the largest form known as P. patagonicus magnus Hylton-Scott, 1951 showed an almost continuous pattern of shell variation, which is positively correlated with the altitude gradient over their geographical range, which in turn is correlated with a rainfall gradient, i.e. they constitute a size-form cline that does not allow objective delimitation of different morphospecies. Data from the genital system were also arranged as a geographical gradient within the P. patagonicus patagonicus-P. patagonicus magnus continuum. The variability of protoconch sculpture and apertural teeth also indicate recognition of them as a single taxon.
publishDate 2005
dc.date.none.fl_str_mv 2005-12
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/11336/97452
Cazzaniga, Néstor Jorge; Piza, Julia; Ghezzi, Natalia S.; Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina; Taylor & Francis Ltd; Journal of Natural History; 39; 24; 12-2005; 2203-2216
0022-2933
CONICET Digital
CONICET
url http://hdl.handle.net/11336/97452
identifier_str_mv Cazzaniga, Néstor Jorge; Piza, Julia; Ghezzi, Natalia S.; Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina; Taylor & Francis Ltd; Journal of Natural History; 39; 24; 12-2005; 2203-2216
0022-2933
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/00222930400004578
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/00222930400004578
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 Taylor & Francis Ltd
publisher.none.fl_str_mv Taylor & Francis Ltd
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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