A preliminary analyze of cranial variations in three Amphisbaenia species

Autores
Hohl, Leandro; Vassallo, Aldo Iván; Casinos, Adrià; Azorit, Concepción; Rocha Barbosa, Oscar
Año de publicación
2023
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Amphisbaenia is a fossorial group of Reptiles. They display morphological adaptations to burrowing, namelly, a cylindrical and elongated body, a tendency to lack legs, and a strongly ossified and compacted skull. Regarding the skull four morphotypes can be assumed: roundheaded, spade-headed, keel-headed, and shovel -headed, beeing the snout region the main cranial variation. The intermediate region of the skull and the occipital zone are more constant in the different species of the group. However, it is worth mentioning that these skull regions are particularlly related to many aspects of their life, such as excavation activity and related bite force, for example. We hypothesize that there are significant variations in these skull regions between different species and that such variations may be related to their lifestyles. The main objective of our research was to analyze, in a preliminary way, cranial variations between three species of Amphisbaenia nameli, Amphisbaena darwinii, Blanus cinereus (both with a rounded skull), and Leposternon microcephalum (with a snout-headed skull). For this, computerized microtomography of four adult specimens of each species were analyzed using 3D Geometric Morphometrics, based on 22 landmarks describing the intermediate and occipital skull regions. Associated Principal Component Analyzes showed a clear difference between the three species studied.
Fil: Hohl, Leandro. Universidade Federal do Estado do Rio de Janeiro; Brasil
Fil: Vassallo, Aldo Iván. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Casinos, Adrià. Universidad de Barcelona; España
Fil: Azorit, Concepción. Universidad de Jaén; España
Fil: Rocha Barbosa, Oscar. Universidade Federal do Estado do Rio de Janeiro; Brasil
International Congress of Vertebrate Morphology: ICVM 2023
Cairns
Australia
Internacional Society Vertebrate Morphology
Materia
Amphisbaena
skull
bones
morphology
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:11336/264465
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A preliminary analyze of cranial variations in three Amphisbaenia speciesHohl, LeandroVassallo, Aldo IvánCasinos, AdriàAzorit, ConcepciónRocha Barbosa, OscarAmphisbaenaskullbonesmorphologyhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Amphisbaenia is a fossorial group of Reptiles. They display morphological adaptations to burrowing, namelly, a cylindrical and elongated body, a tendency to lack legs, and a strongly ossified and compacted skull. Regarding the skull four morphotypes can be assumed: roundheaded, spade-headed, keel-headed, and shovel -headed, beeing the snout region the main cranial variation. The intermediate region of the skull and the occipital zone are more constant in the different species of the group. However, it is worth mentioning that these skull regions are particularlly related to many aspects of their life, such as excavation activity and related bite force, for example. We hypothesize that there are significant variations in these skull regions between different species and that such variations may be related to their lifestyles. The main objective of our research was to analyze, in a preliminary way, cranial variations between three species of Amphisbaenia nameli, Amphisbaena darwinii, Blanus cinereus (both with a rounded skull), and Leposternon microcephalum (with a snout-headed skull). For this, computerized microtomography of four adult specimens of each species were analyzed using 3D Geometric Morphometrics, based on 22 landmarks describing the intermediate and occipital skull regions. Associated Principal Component Analyzes showed a clear difference between the three species studied.Fil: Hohl, Leandro. Universidade Federal do Estado do Rio de Janeiro; BrasilFil: Vassallo, Aldo Iván. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Casinos, Adrià. Universidad de Barcelona; EspañaFil: Azorit, Concepción. Universidad de Jaén; EspañaFil: Rocha Barbosa, Oscar. Universidade Federal do Estado do Rio de Janeiro; BrasilInternational Congress of Vertebrate Morphology: ICVM 2023CairnsAustraliaInternacional Society Vertebrate MorphologyInternational Society for Vertebrate Morphology2023info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/264465A preliminary analyze of cranial variations in three Amphisbaenia species; International Congress of Vertebrate Morphology: ICVM 2023; Cairns; Australia; 2023; 101-101CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.isvm-icvm.org/info:eu-repo/semantics/altIdentifier/url/https://www.isvm-icvm.org/_files/ugd/3bb48f_e958cf2fb7414468860843009fb595e0.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:07:49Zoai:ri.conicet.gov.ar:11336/264465instacron: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 10:07:49.948CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A preliminary analyze of cranial variations in three Amphisbaenia species
title A preliminary analyze of cranial variations in three Amphisbaenia species
spellingShingle A preliminary analyze of cranial variations in three Amphisbaenia species
Hohl, Leandro
Amphisbaena
skull
bones
morphology
title_short A preliminary analyze of cranial variations in three Amphisbaenia species
title_full A preliminary analyze of cranial variations in three Amphisbaenia species
title_fullStr A preliminary analyze of cranial variations in three Amphisbaenia species
title_full_unstemmed A preliminary analyze of cranial variations in three Amphisbaenia species
title_sort A preliminary analyze of cranial variations in three Amphisbaenia species
dc.creator.none.fl_str_mv Hohl, Leandro
Vassallo, Aldo Iván
Casinos, Adrià
Azorit, Concepción
Rocha Barbosa, Oscar
author Hohl, Leandro
author_facet Hohl, Leandro
Vassallo, Aldo Iván
Casinos, Adrià
Azorit, Concepción
Rocha Barbosa, Oscar
author_role author
author2 Vassallo, Aldo Iván
Casinos, Adrià
Azorit, Concepción
Rocha Barbosa, Oscar
author2_role author
author
author
author
dc.subject.none.fl_str_mv Amphisbaena
skull
bones
morphology
topic Amphisbaena
skull
bones
morphology
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Amphisbaenia is a fossorial group of Reptiles. They display morphological adaptations to burrowing, namelly, a cylindrical and elongated body, a tendency to lack legs, and a strongly ossified and compacted skull. Regarding the skull four morphotypes can be assumed: roundheaded, spade-headed, keel-headed, and shovel -headed, beeing the snout region the main cranial variation. The intermediate region of the skull and the occipital zone are more constant in the different species of the group. However, it is worth mentioning that these skull regions are particularlly related to many aspects of their life, such as excavation activity and related bite force, for example. We hypothesize that there are significant variations in these skull regions between different species and that such variations may be related to their lifestyles. The main objective of our research was to analyze, in a preliminary way, cranial variations between three species of Amphisbaenia nameli, Amphisbaena darwinii, Blanus cinereus (both with a rounded skull), and Leposternon microcephalum (with a snout-headed skull). For this, computerized microtomography of four adult specimens of each species were analyzed using 3D Geometric Morphometrics, based on 22 landmarks describing the intermediate and occipital skull regions. Associated Principal Component Analyzes showed a clear difference between the three species studied.
Fil: Hohl, Leandro. Universidade Federal do Estado do Rio de Janeiro; Brasil
Fil: Vassallo, Aldo Iván. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Casinos, Adrià. Universidad de Barcelona; España
Fil: Azorit, Concepción. Universidad de Jaén; España
Fil: Rocha Barbosa, Oscar. Universidade Federal do Estado do Rio de Janeiro; Brasil
International Congress of Vertebrate Morphology: ICVM 2023
Cairns
Australia
Internacional Society Vertebrate Morphology
description Amphisbaenia is a fossorial group of Reptiles. They display morphological adaptations to burrowing, namelly, a cylindrical and elongated body, a tendency to lack legs, and a strongly ossified and compacted skull. Regarding the skull four morphotypes can be assumed: roundheaded, spade-headed, keel-headed, and shovel -headed, beeing the snout region the main cranial variation. The intermediate region of the skull and the occipital zone are more constant in the different species of the group. However, it is worth mentioning that these skull regions are particularlly related to many aspects of their life, such as excavation activity and related bite force, for example. We hypothesize that there are significant variations in these skull regions between different species and that such variations may be related to their lifestyles. The main objective of our research was to analyze, in a preliminary way, cranial variations between three species of Amphisbaenia nameli, Amphisbaena darwinii, Blanus cinereus (both with a rounded skull), and Leposternon microcephalum (with a snout-headed skull). For this, computerized microtomography of four adult specimens of each species were analyzed using 3D Geometric Morphometrics, based on 22 landmarks describing the intermediate and occipital skull regions. Associated Principal Component Analyzes showed a clear difference between the three species studied.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/264465
A preliminary analyze of cranial variations in three Amphisbaenia species; International Congress of Vertebrate Morphology: ICVM 2023; Cairns; Australia; 2023; 101-101
CONICET Digital
CONICET
url http://hdl.handle.net/11336/264465
identifier_str_mv A preliminary analyze of cranial variations in three Amphisbaenia species; International Congress of Vertebrate Morphology: ICVM 2023; Cairns; Australia; 2023; 101-101
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/url/https://www.isvm-icvm.org/_files/ugd/3bb48f_e958cf2fb7414468860843009fb595e0.pdf
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.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv International Society for Vertebrate Morphology
publisher.none.fl_str_mv International Society for Vertebrate Morphology
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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