The tarsal-metatarsal complex of caviomorph rodents: Anatomy and functional-adaptive analysis

Caviomorph rodents represent a major adaptive radiation of Neotropical mammals. They occupy a variety of ecological niches, which is also reflected in their wide array of locomotor behaviors. It is expected that this radiation would be mirrored by an equivalent disparity of tarsal-metatarsal morphol...

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Autores principales: Candela, Adriana Magdalena, Muñoz, Nahuel Antu, García Esponda, César
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Naturales
foot
geometric morphometrics
living
locomotion
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/107585
https://onlinelibrary.wiley.com/doi/abs/10.1002/jmor.20678
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-107585
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
foot
geometric morphometrics
living
locomotion
spellingShingle Ciencias Naturales
foot
geometric morphometrics
living
locomotion
Candela, Adriana Magdalena
Muñoz, Nahuel Antu
García Esponda, César
The tarsal-metatarsal complex of caviomorph rodents: Anatomy and functional-adaptive analysis
topic_facet Ciencias Naturales
foot
geometric morphometrics
living
locomotion
description Caviomorph rodents represent a major adaptive radiation of Neotropical mammals. They occupy a variety of ecological niches, which is also reflected in their wide array of locomotor behaviors. It is expected that this radiation would be mirrored by an equivalent disparity of tarsal-metatarsal morphology. Here, the tarsal-metatarsal complex of Erethizontidae, Cuniculidae, Dasyproctidae, Caviidae, Chinchillidae, Octodontidae, Ctenomyidae, and Echimyidae was examined, in order to evaluate its anatomical variation and functional-adaptive relevance in relation to locomotor behaviors. A qualitative study in functional morphology and a geometric morphometric analysis were performed. We recognized two distinct tarsal-metatarsal patterns that represent the extremes of anatomical variation in the foot. The first, typically present in arboreal species, is characterized by features that facilitate movements at different levels of the tarsal-metatarsal complex. The second pattern, typically present in cursorial caviomorphs, has a set of features that act to stabilize the joints, improve the interlocking of the tarsal bones, and restrict movements to the parasagittal plane. The morphological disparity recognized in this study seems to result from specific locomotor adaptations to climb, dig, run, jump and swim, as well as phylogenetic effects within and among the groups studies.
format Articulo
Preprint
author Candela, Adriana Magdalena
Muñoz, Nahuel Antu
García Esponda, César
author_facet Candela, Adriana Magdalena
Muñoz, Nahuel Antu
García Esponda, César
author_sort Candela, Adriana Magdalena
title The tarsal-metatarsal complex of caviomorph rodents: Anatomy and functional-adaptive analysis
title_short The tarsal-metatarsal complex of caviomorph rodents: Anatomy and functional-adaptive analysis
title_full The tarsal-metatarsal complex of caviomorph rodents: Anatomy and functional-adaptive analysis
title_fullStr The tarsal-metatarsal complex of caviomorph rodents: Anatomy and functional-adaptive analysis
title_full_unstemmed The tarsal-metatarsal complex of caviomorph rodents: Anatomy and functional-adaptive analysis
title_sort tarsal-metatarsal complex of caviomorph rodents: anatomy and functional-adaptive analysis
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/107585
https://onlinelibrary.wiley.com/doi/abs/10.1002/jmor.20678
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