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In vivo cranial bone strain and bite force in the agamid lizard Uromastyx geyri

In vivo bone strain data are the most direct evidence of deformation and strain regimes in the vertebrate cranium during feeding and can provide important insights into skull morphology. Strain data have been collected during feeding across a wide range of mammals; in contrast, in vivo cranial bone...

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Autores principales: Porro, Laura B., Ross, Callum F., Iriarte-Diaz, Jose, O'Reilly, James C., Evans, Susan E., Fagan, Michael J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Company of Biologists 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4059540/
https://www.ncbi.nlm.nih.gov/pubmed/24577443
http://dx.doi.org/10.1242/jeb.096362
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author Porro, Laura B.
Ross, Callum F.
Iriarte-Diaz, Jose
O'Reilly, James C.
Evans, Susan E.
Fagan, Michael J.
author_facet Porro, Laura B.
Ross, Callum F.
Iriarte-Diaz, Jose
O'Reilly, James C.
Evans, Susan E.
Fagan, Michael J.
author_sort Porro, Laura B.
collection PubMed
description In vivo bone strain data are the most direct evidence of deformation and strain regimes in the vertebrate cranium during feeding and can provide important insights into skull morphology. Strain data have been collected during feeding across a wide range of mammals; in contrast, in vivo cranial bone strain data have been collected from few sauropsid taxa. Here we present bone strain data recorded from the jugal of the herbivorous agamid lizard Uromastyx geyri along with simultaneously recorded bite force. Principal and shear strain magnitudes in Uromastyx geyri were lower than cranial bone strains recorded in Alligator mississippiensis, but higher than those reported from herbivorous mammals. Our results suggest that variations in principal strain orientations in the facial skeleton are largely due to differences in feeding behavior and bite location, whereas food type has little impact on strain orientations. Furthermore, mean principal strain orientations differ between male and female Uromastyx during feeding, potentially because of sexual dimorphism in skull morphology.
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spelling pubmed-40595402015-06-01 In vivo cranial bone strain and bite force in the agamid lizard Uromastyx geyri Porro, Laura B. Ross, Callum F. Iriarte-Diaz, Jose O'Reilly, James C. Evans, Susan E. Fagan, Michael J. J Exp Biol Research Articles In vivo bone strain data are the most direct evidence of deformation and strain regimes in the vertebrate cranium during feeding and can provide important insights into skull morphology. Strain data have been collected during feeding across a wide range of mammals; in contrast, in vivo cranial bone strain data have been collected from few sauropsid taxa. Here we present bone strain data recorded from the jugal of the herbivorous agamid lizard Uromastyx geyri along with simultaneously recorded bite force. Principal and shear strain magnitudes in Uromastyx geyri were lower than cranial bone strains recorded in Alligator mississippiensis, but higher than those reported from herbivorous mammals. Our results suggest that variations in principal strain orientations in the facial skeleton are largely due to differences in feeding behavior and bite location, whereas food type has little impact on strain orientations. Furthermore, mean principal strain orientations differ between male and female Uromastyx during feeding, potentially because of sexual dimorphism in skull morphology. Company of Biologists 2014-06-01 /pmc/articles/PMC4059540/ /pubmed/24577443 http://dx.doi.org/10.1242/jeb.096362 Text en © 2014. Published by The Company of Biologists Ltd http://creativecommons.org/licenses/by/3.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.
spellingShingle Research Articles
Porro, Laura B.
Ross, Callum F.
Iriarte-Diaz, Jose
O'Reilly, James C.
Evans, Susan E.
Fagan, Michael J.
In vivo cranial bone strain and bite force in the agamid lizard Uromastyx geyri
title In vivo cranial bone strain and bite force in the agamid lizard Uromastyx geyri
title_full In vivo cranial bone strain and bite force in the agamid lizard Uromastyx geyri
title_fullStr In vivo cranial bone strain and bite force in the agamid lizard Uromastyx geyri
title_full_unstemmed In vivo cranial bone strain and bite force in the agamid lizard Uromastyx geyri
title_short In vivo cranial bone strain and bite force in the agamid lizard Uromastyx geyri
title_sort in vivo cranial bone strain and bite force in the agamid lizard uromastyx geyri
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4059540/
https://www.ncbi.nlm.nih.gov/pubmed/24577443
http://dx.doi.org/10.1242/jeb.096362
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