Taverne, M. orcid.org/0000-0003-3355-6200, Watson, P.J. orcid.org/0000-0003-0220-2960, Dutel, H. orcid.org/0000-0002-1908-5150 et al. (6 more authors) (Cover date: 14 June 2023) Form–function relationships underlie rapid dietary changes in a lizard. Proceedings of the Royal Society B: Biological Sciences, 290 (2000). 20230582. ISSN 0962-8452
Abstract
Macroevolutionary changes such as variation in habitat use or diet are often associated with convergent, adaptive changes in morphology. However, it is still unclear how small-scale morphological variation at the population level can drive shifts in ecology such as observed at a macroevolutionary scale. Here, we address this question by investigating how variation in cranial form and feeding mechanics relate to rapid changes in diet in an insular lizard (Podarcis siculus) after experimental introduction into a new environment. We first quantified differences in the skull shape and jaw muscle architecture between the source and introduced population using three-dimensional geometric morphometrics and dissections. Next, we tested the impact of the observed variation in morphology on the mechanical performance of the masticatory system using computer-based biomechanical simulation techniques. Our results show that small differences in shape, combined with variation in muscle architecture, can result in significant differences in performance allowing access to novel trophic resources. The confrontation of these data with the already described macroevolutionary relationships between cranial form and function in these insular lizards provides insights into how selection can, over relatively short time scales, drive major changes in ecology through its impact on mechanical performance.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | This is an author produced version of an article published in Proceedings of the Royal Society B: Biological Sciences. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | adaptation, diet, bite force, lizard, finite-element models, multibody dynamics |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Medical and Biological Engineering (iMBE) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 07 Nov 2023 12:10 |
Last Modified: | 19 Jan 2024 15:29 |
Published Version: | https://royalsocietypublishing.org/doi/10.1098/rsp... |
Status: | Published |
Publisher: | The Royal Society |
Identification Number: | 10.1098/rspb.2023.0582 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:203605 |