Prey size reflected in tooth wear: a comparison of two wolf populations from Sweden and Alaska
Ingesta leaves distinct patterns on mammalian teeth during mastication. However, an unresolved challenge is how to include intraspecific variability into dietary reconstruction and the biomechanical aspects of chewing. Two extant populations of the grey wolf ( Canis lupus ), one from Alaska and one...
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crroyalsociety:10.1098/rsfs.2023.0070 2024-06-23T07:51:59+00:00 Prey size reflected in tooth wear: a comparison of two wolf populations from Sweden and Alaska Schulz-Kornas, Ellen Skiba, Mirella H. Kaiser, Thomas M. Deutsche Forschungsgemeinschaft 2024 http://dx.doi.org/10.1098/rsfs.2023.0070 https://royalsocietypublishing.org/doi/pdf/10.1098/rsfs.2023.0070 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsfs.2023.0070 en eng The Royal Society http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ Interface Focus volume 14, issue 3 ISSN 2042-8901 journal-article 2024 crroyalsociety https://doi.org/10.1098/rsfs.2023.0070 2024-06-10T04:15:16Z Ingesta leaves distinct patterns on mammalian teeth during mastication. However, an unresolved challenge is how to include intraspecific variability into dietary reconstruction and the biomechanical aspects of chewing. Two extant populations of the grey wolf ( Canis lupus ), one from Alaska and one from Sweden, were analysed with consideration to intraspecific dietary variability related to prey size depending on geographical origin, sex and individual age as well as tooth function. Occlusal enamel facets of the upper fourth premolars, first molars and the second lower molar were analysed via three-dimensional surface texture analysis. The Swedish wolves displayed facets characterized by higher peaks and deeper, more voluminous dales, featuring an overall rougher surface than the wolves from Alaska. Compared to females, the Swedish male wolves had a slightly larger dale area and hill volume on their facets. Upper fourth premolars are smoother and had higher values in texture direction compared to upper first molars. The upper first molars were rougher than the occluding lower second molars and were characterized by larger and deeper dales. We find evidence supporting intraspecific dietary segregation, and antagonistic asymmetry in occlusal wear signatures. The data offer new insights into the roles of apex predators like the grey wolf. Article in Journal/Newspaper Canis lupus Alaska The Royal Society Interface Focus 14 3 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Ingesta leaves distinct patterns on mammalian teeth during mastication. However, an unresolved challenge is how to include intraspecific variability into dietary reconstruction and the biomechanical aspects of chewing. Two extant populations of the grey wolf ( Canis lupus ), one from Alaska and one from Sweden, were analysed with consideration to intraspecific dietary variability related to prey size depending on geographical origin, sex and individual age as well as tooth function. Occlusal enamel facets of the upper fourth premolars, first molars and the second lower molar were analysed via three-dimensional surface texture analysis. The Swedish wolves displayed facets characterized by higher peaks and deeper, more voluminous dales, featuring an overall rougher surface than the wolves from Alaska. Compared to females, the Swedish male wolves had a slightly larger dale area and hill volume on their facets. Upper fourth premolars are smoother and had higher values in texture direction compared to upper first molars. The upper first molars were rougher than the occluding lower second molars and were characterized by larger and deeper dales. We find evidence supporting intraspecific dietary segregation, and antagonistic asymmetry in occlusal wear signatures. The data offer new insights into the roles of apex predators like the grey wolf. |
author2 |
Deutsche Forschungsgemeinschaft |
format |
Article in Journal/Newspaper |
author |
Schulz-Kornas, Ellen Skiba, Mirella H. Kaiser, Thomas M. |
spellingShingle |
Schulz-Kornas, Ellen Skiba, Mirella H. Kaiser, Thomas M. Prey size reflected in tooth wear: a comparison of two wolf populations from Sweden and Alaska |
author_facet |
Schulz-Kornas, Ellen Skiba, Mirella H. Kaiser, Thomas M. |
author_sort |
Schulz-Kornas, Ellen |
title |
Prey size reflected in tooth wear: a comparison of two wolf populations from Sweden and Alaska |
title_short |
Prey size reflected in tooth wear: a comparison of two wolf populations from Sweden and Alaska |
title_full |
Prey size reflected in tooth wear: a comparison of two wolf populations from Sweden and Alaska |
title_fullStr |
Prey size reflected in tooth wear: a comparison of two wolf populations from Sweden and Alaska |
title_full_unstemmed |
Prey size reflected in tooth wear: a comparison of two wolf populations from Sweden and Alaska |
title_sort |
prey size reflected in tooth wear: a comparison of two wolf populations from sweden and alaska |
publisher |
The Royal Society |
publishDate |
2024 |
url |
http://dx.doi.org/10.1098/rsfs.2023.0070 https://royalsocietypublishing.org/doi/pdf/10.1098/rsfs.2023.0070 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsfs.2023.0070 |
genre |
Canis lupus Alaska |
genre_facet |
Canis lupus Alaska |
op_source |
Interface Focus volume 14, issue 3 ISSN 2042-8901 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1098/rsfs.2023.0070 |
container_title |
Interface Focus |
container_volume |
14 |
container_issue |
3 |
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1802643147734384640 |