Comparison of cranial performance between mainland and two island subspecies of the Arctic fox Vulpes lagopus (Carnivora: Canidae) during simulated biting
Island subspecies of the Arctic fox Vulpes lagopus differ morphologically from the mainland subspecies. In particular, differences in cranial form may reflect varied biomechanical adaptations associated with hunting and feeding behaviours. We tested the hypothesis that the observed cranial differenc...
Published in: | Biological Journal of the Linnean Society |
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ftleedsuniv:oai:eprints.whiterose.ac.uk:116831 2023-05-15T14:26:53+02:00 Comparison of cranial performance between mainland and two island subspecies of the Arctic fox Vulpes lagopus (Carnivora: Canidae) during simulated biting O'Higgins, Paul Fitton, Laura Catherine Proa, Antonio Miguel Guarita Pires Rosa Evteev, Andrej Nanova, Olga 2017-04-08 text https://eprints.whiterose.ac.uk/116831/ https://eprints.whiterose.ac.uk/116831/1/Nanova_et_al_FEA_fox_BJLS_final_ms.pdf https://doi.org/10.1093/biolinnean/blx029 en eng https://eprints.whiterose.ac.uk/116831/1/Nanova_et_al_FEA_fox_BJLS_final_ms.pdf O'Higgins, Paul orcid.org/0000-0002-9797-0809 , Fitton, Laura Catherine orcid.org/0000-0003-4641-931X , Proa, Antonio Miguel Guarita Pires Rosa et al. (2 more authors) (2017) Comparison of cranial performance between mainland and two island subspecies of the Arctic fox Vulpes lagopus (Carnivora: Canidae) during simulated biting. Biological Journal of the Linnean Society. pp. 1-13. ISSN 0024-4066 Article PeerReviewed 2017 ftleedsuniv https://doi.org/10.1093/biolinnean/blx029 2023-01-30T21:55:15Z Island subspecies of the Arctic fox Vulpes lagopus differ morphologically from the mainland subspecies. In particular, differences in cranial form may reflect varied biomechanical adaptations associated with hunting and feeding behaviours. We tested the hypothesis that the observed cranial differences between two island foxes (living on two North Pacific islands) and those living on the mainland have no impact on biomechanical performance during simulated biting. 3D cranial models of three Arctic fox subspecies were compared based on biomechanical parameters (e.g. local strain and large-scale deformation). Finite elements (FE) analyses were used to simulate equivalent biting loads, and geometric morphometrics was used to compare the modes of deformation among the models. The results showed differences in local strains and modes of global deformation among the three subspecies; the mainland subspecies was particularly distinct from the island subspecies. The representative cranium of the mainland subspecies experienced higher strain than that of both island subspecies during all bites. However, the findings highlight issues that arise when relating biomechanical performance, measured via FE analyses, to the foods consumed rather than to the mechanical properties of the individual’s diet. Additional physical properties data for each prey type are necessary to determine the extent to which the present findings reflect biomechanical adaptations to diet and prey acquisition. Article in Journal/Newspaper Arctic Arctic Fox Arctic Vulpes lagopus White Rose Research Online (Universities of Leeds, Sheffield & York) Arctic Pacific Biological Journal of the Linnean Society 121 4 923 935 |
institution |
Open Polar |
collection |
White Rose Research Online (Universities of Leeds, Sheffield & York) |
op_collection_id |
ftleedsuniv |
language |
English |
description |
Island subspecies of the Arctic fox Vulpes lagopus differ morphologically from the mainland subspecies. In particular, differences in cranial form may reflect varied biomechanical adaptations associated with hunting and feeding behaviours. We tested the hypothesis that the observed cranial differences between two island foxes (living on two North Pacific islands) and those living on the mainland have no impact on biomechanical performance during simulated biting. 3D cranial models of three Arctic fox subspecies were compared based on biomechanical parameters (e.g. local strain and large-scale deformation). Finite elements (FE) analyses were used to simulate equivalent biting loads, and geometric morphometrics was used to compare the modes of deformation among the models. The results showed differences in local strains and modes of global deformation among the three subspecies; the mainland subspecies was particularly distinct from the island subspecies. The representative cranium of the mainland subspecies experienced higher strain than that of both island subspecies during all bites. However, the findings highlight issues that arise when relating biomechanical performance, measured via FE analyses, to the foods consumed rather than to the mechanical properties of the individual’s diet. Additional physical properties data for each prey type are necessary to determine the extent to which the present findings reflect biomechanical adaptations to diet and prey acquisition. |
format |
Article in Journal/Newspaper |
author |
O'Higgins, Paul Fitton, Laura Catherine Proa, Antonio Miguel Guarita Pires Rosa Evteev, Andrej Nanova, Olga |
spellingShingle |
O'Higgins, Paul Fitton, Laura Catherine Proa, Antonio Miguel Guarita Pires Rosa Evteev, Andrej Nanova, Olga Comparison of cranial performance between mainland and two island subspecies of the Arctic fox Vulpes lagopus (Carnivora: Canidae) during simulated biting |
author_facet |
O'Higgins, Paul Fitton, Laura Catherine Proa, Antonio Miguel Guarita Pires Rosa Evteev, Andrej Nanova, Olga |
author_sort |
O'Higgins, Paul |
title |
Comparison of cranial performance between mainland and two island subspecies of the Arctic fox Vulpes lagopus (Carnivora: Canidae) during simulated biting |
title_short |
Comparison of cranial performance between mainland and two island subspecies of the Arctic fox Vulpes lagopus (Carnivora: Canidae) during simulated biting |
title_full |
Comparison of cranial performance between mainland and two island subspecies of the Arctic fox Vulpes lagopus (Carnivora: Canidae) during simulated biting |
title_fullStr |
Comparison of cranial performance between mainland and two island subspecies of the Arctic fox Vulpes lagopus (Carnivora: Canidae) during simulated biting |
title_full_unstemmed |
Comparison of cranial performance between mainland and two island subspecies of the Arctic fox Vulpes lagopus (Carnivora: Canidae) during simulated biting |
title_sort |
comparison of cranial performance between mainland and two island subspecies of the arctic fox vulpes lagopus (carnivora: canidae) during simulated biting |
publishDate |
2017 |
url |
https://eprints.whiterose.ac.uk/116831/ https://eprints.whiterose.ac.uk/116831/1/Nanova_et_al_FEA_fox_BJLS_final_ms.pdf https://doi.org/10.1093/biolinnean/blx029 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Arctic Fox Arctic Vulpes lagopus |
genre_facet |
Arctic Arctic Fox Arctic Vulpes lagopus |
op_relation |
https://eprints.whiterose.ac.uk/116831/1/Nanova_et_al_FEA_fox_BJLS_final_ms.pdf O'Higgins, Paul orcid.org/0000-0002-9797-0809 , Fitton, Laura Catherine orcid.org/0000-0003-4641-931X , Proa, Antonio Miguel Guarita Pires Rosa et al. (2 more authors) (2017) Comparison of cranial performance between mainland and two island subspecies of the Arctic fox Vulpes lagopus (Carnivora: Canidae) during simulated biting. Biological Journal of the Linnean Society. pp. 1-13. ISSN 0024-4066 |
op_doi |
https://doi.org/10.1093/biolinnean/blx029 |
container_title |
Biological Journal of the Linnean Society |
container_volume |
121 |
container_issue |
4 |
container_start_page |
923 |
op_container_end_page |
935 |
_version_ |
1766300347105542144 |