No Directional Scapular Asymmetry among Tamarines of the Genus Saguinus(Primates: Callitrichidae)

Bilateral asymmetry is defined as a deviation of a whole organism or a part of it from a perfect symmetry, and different categories can be recognized. One is the fluctuating asymmetry, defined as the random developmental variation of a trait (or character) that is expected to be perfectly symmetrica...

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Autores: Parés Casanova, Pere-Miquel, Vélez-García, Juan Fernando
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/69653
Acceso en línea:https://doi.org/10.9734/arrb/2020/v35i1030284
http://hdl.handle.net/10459.1/69653
Access Level:acceso abierto
Palabra clave:Primates
Directionality
Animal anatomy
Shoulder
Bilateral asymmetry
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spelling No Directional Scapular Asymmetry among Tamarines of the Genus Saguinus(Primates: Callitrichidae)Parés Casanova, Pere-MiquelVélez-García, Juan FernandoPrimatesDirectionalityAnimal anatomyShoulderBilateral asymmetryBilateral asymmetry is defined as a deviation of a whole organism or a part of it from a perfect symmetry, and different categories can be recognized. One is the fluctuating asymmetry, defined as the random developmental variation of a trait (or character) that is expected to be perfectly symmetrical on average, and the other one is directional asymmetry, which occurs when one of the sides shows stronger morphological structures or marks than the other. The aim of this study was to determine the kind of scapula asymmetry in Saguinus scapulae. On lateral surface of each right and left scapula, a set of 5 landmarks and 3 curves with semi-landmarks along the margins, on a sample of 16 pairs from different Saguinus species, were considered. Asymmetries (fluctuating and directional) on size and shape of the scapulae were analysed by means of geometric morphometric methods. Directional asymmetry was not detected, demonstrating no side scapular shape bias. The absence of significant directional asymmetry may indicate a similar contralateral pattern of employment of the shoulder, at least for one-arm vertical suspension, as it needs stronger forces than those for terrestrial locomotion and thus would cause more asymmetry in case side loadings were different. To our knowledge, this is the first investigation on the symmetrical/asymmetrical nature of scapulae in Saguinus. Our findings increase knowledge and understanding of humeral joint and arboreal locomotion in primates.SCIENCEDOMAIN International2020202020202020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.9734/arrb/2020/v35i1030284http://hdl.handle.net/10459.1/69653http://hdl.handle.net/10459.1/69653reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.9734/arrb/2020/v35i1030284Annual Research and Review in Biology, 2020, vol. 35, num. 10, p. 7-13cc-by (c) Parés Casanova, Pere-Miquel et al., 2020info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/oai:recercat.cat:10459.1/696532026-05-29T05:05:01Z
dc.title.none.fl_str_mv No Directional Scapular Asymmetry among Tamarines of the Genus Saguinus(Primates: Callitrichidae)
title No Directional Scapular Asymmetry among Tamarines of the Genus Saguinus(Primates: Callitrichidae)
spellingShingle No Directional Scapular Asymmetry among Tamarines of the Genus Saguinus(Primates: Callitrichidae)
Parés Casanova, Pere-Miquel
Primates
Directionality
Animal anatomy
Shoulder
Bilateral asymmetry
title_short No Directional Scapular Asymmetry among Tamarines of the Genus Saguinus(Primates: Callitrichidae)
title_full No Directional Scapular Asymmetry among Tamarines of the Genus Saguinus(Primates: Callitrichidae)
title_fullStr No Directional Scapular Asymmetry among Tamarines of the Genus Saguinus(Primates: Callitrichidae)
title_full_unstemmed No Directional Scapular Asymmetry among Tamarines of the Genus Saguinus(Primates: Callitrichidae)
title_sort No Directional Scapular Asymmetry among Tamarines of the Genus Saguinus(Primates: Callitrichidae)
dc.creator.none.fl_str_mv Parés Casanova, Pere-Miquel
Vélez-García, Juan Fernando
author Parés Casanova, Pere-Miquel
author_facet Parés Casanova, Pere-Miquel
Vélez-García, Juan Fernando
author_role author
author2 Vélez-García, Juan Fernando
author2_role author
dc.subject.none.fl_str_mv Primates
Directionality
Animal anatomy
Shoulder
Bilateral asymmetry
topic Primates
Directionality
Animal anatomy
Shoulder
Bilateral asymmetry
description Bilateral asymmetry is defined as a deviation of a whole organism or a part of it from a perfect symmetry, and different categories can be recognized. One is the fluctuating asymmetry, defined as the random developmental variation of a trait (or character) that is expected to be perfectly symmetrical on average, and the other one is directional asymmetry, which occurs when one of the sides shows stronger morphological structures or marks than the other. The aim of this study was to determine the kind of scapula asymmetry in Saguinus scapulae. On lateral surface of each right and left scapula, a set of 5 landmarks and 3 curves with semi-landmarks along the margins, on a sample of 16 pairs from different Saguinus species, were considered. Asymmetries (fluctuating and directional) on size and shape of the scapulae were analysed by means of geometric morphometric methods. Directional asymmetry was not detected, demonstrating no side scapular shape bias. The absence of significant directional asymmetry may indicate a similar contralateral pattern of employment of the shoulder, at least for one-arm vertical suspension, as it needs stronger forces than those for terrestrial locomotion and thus would cause more asymmetry in case side loadings were different. To our knowledge, this is the first investigation on the symmetrical/asymmetrical nature of scapulae in Saguinus. Our findings increase knowledge and understanding of humeral joint and arboreal locomotion in primates.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.9734/arrb/2020/v35i1030284
http://hdl.handle.net/10459.1/69653
http://hdl.handle.net/10459.1/69653
url https://doi.org/10.9734/arrb/2020/v35i1030284
http://hdl.handle.net/10459.1/69653
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.9734/arrb/2020/v35i1030284
Annual Research and Review in Biology, 2020, vol. 35, num. 10, p. 7-13
dc.rights.none.fl_str_mv cc-by (c) Parés Casanova, Pere-Miquel et al., 2020
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
rights_invalid_str_mv cc-by (c) Parés Casanova, Pere-Miquel et al., 2020
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv SCIENCEDOMAIN International
publisher.none.fl_str_mv SCIENCEDOMAIN International
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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