Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast
- Autores
- Malvé, Mariano Ezequiel; Rivadeneira Valenzuela, Marcelo Michel; Gordillo, Sandra
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Broad-scale latitudinal morphological trends in gastropods along the southwestern Atlantic coast are scant, since the majority of studies have focused on local scales. Here, we evaluate biogeographic shell shape variation in the marine gastropod Trophon geversianus across most of its distributional range, covering 14 degrees of latitude. Samples come from death assemblages which have the potential to unveil biogeographic patterns along spatio-temporal scales and are not affected by short-term volatility in comparison with living assemblages. We performed morphometric analyses on shells from death assemblages, and compared shape variation between mid-Holocene and modern shells from one southern site. Multivariate analyses identified two morphotypes matching the biogeographic regions of the Argentine Sea that segregates a warm-temperate from a cold-temperate zone. The Magellan province morphotype is characterized by a larger shell, lower spire height, and higher aperture length than the Argentinean province morphotype. This change in shell shape is significantly correlated to sea surface temperature, even after accounting for spatial autocorrelation, which could be indirectly influencing intraspecific morphoclines via shifts in growth rates. On the other side, shell size and shape variations were also detected (size increase over recent geological time) between mid-Holocene and modern specimens at the Beagle Channel, which could be attributed to paleoenvironmental changes and to shifts in predator-prey relationships. Our study illustrates the usefulness of death assemblages for revealing large-scale patterns of shell-shape variability in mollusk species, and highlights the spatial coincidence of intraspecific morphological differentiation with the transition zone between biogeographic provinces of the Argentine Sea.
Fil: Malvé, Mariano Ezequiel. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Rivadeneira Valenzuela, Marcelo Michel. Centro de Estudios Avanzados En Zonas Áridas (ceaza); Chile. Universidad Católica del Norte; Chile. Universidad de La Serena; Chile. Centro de Estudios Avanzados en Zonas Áridas; Chile
Fil: Gordillo, Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina - Materia
-
death assemblages
Patagonia
biogeography
morphometry - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/88343
Ver los metadatos del registro completo
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network_name_str |
CONICET Digital (CONICET) |
spelling |
Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coastMalvé, Mariano EzequielRivadeneira Valenzuela, Marcelo MichelGordillo, Sandradeath assemblagesPatagoniabiogeographymorphometryhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Broad-scale latitudinal morphological trends in gastropods along the southwestern Atlantic coast are scant, since the majority of studies have focused on local scales. Here, we evaluate biogeographic shell shape variation in the marine gastropod Trophon geversianus across most of its distributional range, covering 14 degrees of latitude. Samples come from death assemblages which have the potential to unveil biogeographic patterns along spatio-temporal scales and are not affected by short-term volatility in comparison with living assemblages. We performed morphometric analyses on shells from death assemblages, and compared shape variation between mid-Holocene and modern shells from one southern site. Multivariate analyses identified two morphotypes matching the biogeographic regions of the Argentine Sea that segregates a warm-temperate from a cold-temperate zone. The Magellan province morphotype is characterized by a larger shell, lower spire height, and higher aperture length than the Argentinean province morphotype. This change in shell shape is significantly correlated to sea surface temperature, even after accounting for spatial autocorrelation, which could be indirectly influencing intraspecific morphoclines via shifts in growth rates. On the other side, shell size and shape variations were also detected (size increase over recent geological time) between mid-Holocene and modern specimens at the Beagle Channel, which could be attributed to paleoenvironmental changes and to shifts in predator-prey relationships. Our study illustrates the usefulness of death assemblages for revealing large-scale patterns of shell-shape variability in mollusk species, and highlights the spatial coincidence of intraspecific morphological differentiation with the transition zone between biogeographic provinces of the Argentine Sea.Fil: Malvé, Mariano Ezequiel. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: Rivadeneira Valenzuela, Marcelo Michel. Centro de Estudios Avanzados En Zonas Áridas (ceaza); Chile. Universidad Católica del Norte; Chile. Universidad de La Serena; Chile. Centro de Estudios Avanzados en Zonas Áridas; ChileFil: Gordillo, Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaSociety for Sedimentary Geology2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/88343Malvé, Mariano Ezequiel; Rivadeneira Valenzuela, Marcelo Michel; Gordillo, Sandra; Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast; Society for Sedimentary Geology; Palaios; 33; 11; 11-2018; 498-5070883-1351CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.2110/palo.2018.060info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/sepm/palaios/article/33/11/498/566709/BIOGEOGRAPHIC-SHELL-SHAPE-VARIATION-IN-TROPHONinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:19Zoai:ri.conicet.gov.ar:11336/88343instacron: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 09:33:20.04CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast |
title |
Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast |
spellingShingle |
Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast Malvé, Mariano Ezequiel death assemblages Patagonia biogeography morphometry |
title_short |
Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast |
title_full |
Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast |
title_fullStr |
Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast |
title_full_unstemmed |
Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast |
title_sort |
Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast |
dc.creator.none.fl_str_mv |
Malvé, Mariano Ezequiel Rivadeneira Valenzuela, Marcelo Michel Gordillo, Sandra |
author |
Malvé, Mariano Ezequiel |
author_facet |
Malvé, Mariano Ezequiel Rivadeneira Valenzuela, Marcelo Michel Gordillo, Sandra |
author_role |
author |
author2 |
Rivadeneira Valenzuela, Marcelo Michel Gordillo, Sandra |
author2_role |
author author |
dc.subject.none.fl_str_mv |
death assemblages Patagonia biogeography morphometry |
topic |
death assemblages Patagonia biogeography morphometry |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Broad-scale latitudinal morphological trends in gastropods along the southwestern Atlantic coast are scant, since the majority of studies have focused on local scales. Here, we evaluate biogeographic shell shape variation in the marine gastropod Trophon geversianus across most of its distributional range, covering 14 degrees of latitude. Samples come from death assemblages which have the potential to unveil biogeographic patterns along spatio-temporal scales and are not affected by short-term volatility in comparison with living assemblages. We performed morphometric analyses on shells from death assemblages, and compared shape variation between mid-Holocene and modern shells from one southern site. Multivariate analyses identified two morphotypes matching the biogeographic regions of the Argentine Sea that segregates a warm-temperate from a cold-temperate zone. The Magellan province morphotype is characterized by a larger shell, lower spire height, and higher aperture length than the Argentinean province morphotype. This change in shell shape is significantly correlated to sea surface temperature, even after accounting for spatial autocorrelation, which could be indirectly influencing intraspecific morphoclines via shifts in growth rates. On the other side, shell size and shape variations were also detected (size increase over recent geological time) between mid-Holocene and modern specimens at the Beagle Channel, which could be attributed to paleoenvironmental changes and to shifts in predator-prey relationships. Our study illustrates the usefulness of death assemblages for revealing large-scale patterns of shell-shape variability in mollusk species, and highlights the spatial coincidence of intraspecific morphological differentiation with the transition zone between biogeographic provinces of the Argentine Sea. Fil: Malvé, Mariano Ezequiel. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina Fil: Rivadeneira Valenzuela, Marcelo Michel. Centro de Estudios Avanzados En Zonas Áridas (ceaza); Chile. Universidad Católica del Norte; Chile. Universidad de La Serena; Chile. Centro de Estudios Avanzados en Zonas Áridas; Chile Fil: Gordillo, Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina |
description |
Broad-scale latitudinal morphological trends in gastropods along the southwestern Atlantic coast are scant, since the majority of studies have focused on local scales. Here, we evaluate biogeographic shell shape variation in the marine gastropod Trophon geversianus across most of its distributional range, covering 14 degrees of latitude. Samples come from death assemblages which have the potential to unveil biogeographic patterns along spatio-temporal scales and are not affected by short-term volatility in comparison with living assemblages. We performed morphometric analyses on shells from death assemblages, and compared shape variation between mid-Holocene and modern shells from one southern site. Multivariate analyses identified two morphotypes matching the biogeographic regions of the Argentine Sea that segregates a warm-temperate from a cold-temperate zone. The Magellan province morphotype is characterized by a larger shell, lower spire height, and higher aperture length than the Argentinean province morphotype. This change in shell shape is significantly correlated to sea surface temperature, even after accounting for spatial autocorrelation, which could be indirectly influencing intraspecific morphoclines via shifts in growth rates. On the other side, shell size and shape variations were also detected (size increase over recent geological time) between mid-Holocene and modern specimens at the Beagle Channel, which could be attributed to paleoenvironmental changes and to shifts in predator-prey relationships. Our study illustrates the usefulness of death assemblages for revealing large-scale patterns of shell-shape variability in mollusk species, and highlights the spatial coincidence of intraspecific morphological differentiation with the transition zone between biogeographic provinces of the Argentine Sea. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11 |
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/11336/88343 Malvé, Mariano Ezequiel; Rivadeneira Valenzuela, Marcelo Michel; Gordillo, Sandra; Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast; Society for Sedimentary Geology; Palaios; 33; 11; 11-2018; 498-507 0883-1351 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/88343 |
identifier_str_mv |
Malvé, Mariano Ezequiel; Rivadeneira Valenzuela, Marcelo Michel; Gordillo, Sandra; Biogeographic shell shape variation in trophon Geversianus (gastropoda: muricidae) along the Southwestern Atlantic coast; Society for Sedimentary Geology; Palaios; 33; 11; 11-2018; 498-507 0883-1351 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.2110/palo.2018.060 info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/sepm/palaios/article/33/11/498/566709/BIOGEOGRAPHIC-SHELL-SHAPE-VARIATION-IN-TROPHON |
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 |
dc.publisher.none.fl_str_mv |
Society for Sedimentary Geology |
publisher.none.fl_str_mv |
Society for Sedimentary Geology |
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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1844613023184977920 |
score |
13.070432 |