Size, but not shape, would reflect mandibular differences in two spear-nosed bats (Phyllostomus Lacépède, 1799) (Chiroptera, Phyllostomidae)

The mandible is a model for the evolution of complex morphological structures because it presents a developmental integration of its different parts. Unlike other parts of the skull that harbour different functions (protect-ing the brain and sensory organs), the mandible's main functional deman...

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Autor: Parés Casanova, Pere-Miquel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
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:10459.1/65645
Acceso en línea:https://doi.org/10.3989/graellsia.2018.v74.211
http://hdl.handle.net/10459.1/65645
Access Level:acceso abierto
Palabra clave:Alometría
Phyllostomidae
Quirópteros
Morfometria geomètrica
Craneometria
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spelling Size, but not shape, would reflect mandibular differences in two spear-nosed bats (Phyllostomus Lacépède, 1799) (Chiroptera, Phyllostomidae)El tamaño, pero no forma, reflejaría diferencias en las mandíbulas de dos especies de murciélagos de hoja nasal (Phullostomus Lacépède, 1799) (Chiroptera Phyllostomidae)Parés Casanova, Pere-MiquelAlometríaPhyllostomidaeQuirópterosMorfometria geomètricaCraneometriaThe mandible is a model for the evolution of complex morphological structures because it presents a developmental integration of its different parts. Unlike other parts of the skull that harbour different functions (protect-ing the brain and sensory organs), the mandible's main functional demands are related to feeding, and dietary changes are expected to be the main selective agent for its structure. Here it is presented a geometric morpho-metric study of mandibles belonging to two species of New World leaf-nosed bats, Phyllostomidae: Pale Spear-nosed Bat (Phyllostomus discolor Wagner, 1843) (n= 29) and Greater Spear-nosed Bat [Phyllostomus hastatus (Pallas, 1767)] (n= 6), both of them with an omnivorous with a nectarivorous shift feeding habit. Differences in size and shape of mandible were examined using 13 landmarks plotted on lateral aspect. The results revealed species differences for size but not for shape, being allometry an unimportant component of interspecific varia-tion. It is concluded that similar feeding specialization in both species would have evolved towards similar man-dibular shape, with size having evolved quite independently in both species.La mandíbula es un modelo para la evolución de las estructuras morfológicas complejas debido a que presenta una integración del desarrollo de sus diferentes estructuras. A diferencia de otras partes del cráneo, que albergan estructuras con funciones diferentes (protección del cerebro y de los órganos sensoriales), la principal demanda funcional para la mandíbula se relaciona con la alimentación. Por ello, es esperable que sea la dieta su principal agente selectivo. En esta investigación se presenta un estudio basado en morfometría geométrica, de mandíbulas pertenecientes a dos especies de murciélagos de hoja nasal, Phyllostomidae: el murciélago nariz de hoja pálido (Phyllostomus discolor Wagner, 1843) (n= 29) y el murciélago nariz de hoja lanceolada [Phyllostomus hastatus (Pallas, 1767)] (n= 6), ambas especies omnívoras, con tendencia nectarívora. Las dife-rencias en tamaño y forma de la mandíbula fueron examinadas usando 13 hitos anatómicos situados en la cara lateral de las hemimandíbulas. Los resultados revelaron diferencias entre ambas especies para el tamaño, pero no para la forma, siendo insignificante la variación alométrica. Se concluye que una alimentación parecida para ambas especies ha hecho evolucionar hacia una forma mandibular similar, aunque el tamaño para ambas haya evolucionado de manera independientemente.CSIC2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.3989/graellsia.2018.v74.211http://hdl.handle.net/10459.1/65645reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)EspañolReproducció del document publicat a: https://doi.org/10.3989/graellsia.2018.v74.211Graellsia, 2018, vol. 74, núm. 2, p. e081cc-by (c) CSIC, 2018info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/4.0/oai:recercat.cat:10459.1/656452026-05-29T05:05:01Z
dc.title.none.fl_str_mv Size, but not shape, would reflect mandibular differences in two spear-nosed bats (Phyllostomus Lacépède, 1799) (Chiroptera, Phyllostomidae)
El tamaño, pero no forma, reflejaría diferencias en las mandíbulas de dos especies de murciélagos de hoja nasal (Phullostomus Lacépède, 1799) (Chiroptera Phyllostomidae)
title Size, but not shape, would reflect mandibular differences in two spear-nosed bats (Phyllostomus Lacépède, 1799) (Chiroptera, Phyllostomidae)
spellingShingle Size, but not shape, would reflect mandibular differences in two spear-nosed bats (Phyllostomus Lacépède, 1799) (Chiroptera, Phyllostomidae)
Parés Casanova, Pere-Miquel
Alometría
Phyllostomidae
Quirópteros
Morfometria geomètrica
Craneometria
title_short Size, but not shape, would reflect mandibular differences in two spear-nosed bats (Phyllostomus Lacépède, 1799) (Chiroptera, Phyllostomidae)
title_full Size, but not shape, would reflect mandibular differences in two spear-nosed bats (Phyllostomus Lacépède, 1799) (Chiroptera, Phyllostomidae)
title_fullStr Size, but not shape, would reflect mandibular differences in two spear-nosed bats (Phyllostomus Lacépède, 1799) (Chiroptera, Phyllostomidae)
title_full_unstemmed Size, but not shape, would reflect mandibular differences in two spear-nosed bats (Phyllostomus Lacépède, 1799) (Chiroptera, Phyllostomidae)
title_sort Size, but not shape, would reflect mandibular differences in two spear-nosed bats (Phyllostomus Lacépède, 1799) (Chiroptera, Phyllostomidae)
dc.creator.none.fl_str_mv Parés Casanova, Pere-Miquel
author Parés Casanova, Pere-Miquel
author_facet Parés Casanova, Pere-Miquel
author_role author
dc.subject.none.fl_str_mv Alometría
Phyllostomidae
Quirópteros
Morfometria geomètrica
Craneometria
topic Alometría
Phyllostomidae
Quirópteros
Morfometria geomètrica
Craneometria
description The mandible is a model for the evolution of complex morphological structures because it presents a developmental integration of its different parts. Unlike other parts of the skull that harbour different functions (protect-ing the brain and sensory organs), the mandible's main functional demands are related to feeding, and dietary changes are expected to be the main selective agent for its structure. Here it is presented a geometric morpho-metric study of mandibles belonging to two species of New World leaf-nosed bats, Phyllostomidae: Pale Spear-nosed Bat (Phyllostomus discolor Wagner, 1843) (n= 29) and Greater Spear-nosed Bat [Phyllostomus hastatus (Pallas, 1767)] (n= 6), both of them with an omnivorous with a nectarivorous shift feeding habit. Differences in size and shape of mandible were examined using 13 landmarks plotted on lateral aspect. The results revealed species differences for size but not for shape, being allometry an unimportant component of interspecific varia-tion. It is concluded that similar feeding specialization in both species would have evolved towards similar man-dibular shape, with size having evolved quite independently in both species.
publishDate 2018
dc.date.none.fl_str_mv 2018
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/10.3989/graellsia.2018.v74.211
http://hdl.handle.net/10459.1/65645
url https://doi.org/10.3989/graellsia.2018.v74.211
http://hdl.handle.net/10459.1/65645
dc.language.none.fl_str_mv Español
language_invalid_str_mv Español
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3989/graellsia.2018.v74.211
Graellsia, 2018, vol. 74, núm. 2, p. e081
dc.rights.none.fl_str_mv cc-by (c) CSIC, 2018
info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/4.0/
rights_invalid_str_mv cc-by (c) CSIC, 2018
https://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 CSIC
publisher.none.fl_str_mv CSIC
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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