Identifying past remains of morphologically similar vole species using molar shapes.
18 pages International audience Accurate species identification in fossil remains is a complex task but is a key component for developing good inferences on many, if not all, fundamental questions in macroecology and macroevolution. In the Quaternary, arvicolines are very abundant remains in archeol...
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Online Access: | https://hal.archives-ouvertes.fr/hal-01883813 https://doi.org/10.3390/quat1030020 |
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ftunivnantes:oai:HAL:hal-01883813v1 2023-05-15T15:56:39+02:00 Identifying past remains of morphologically similar vole species using molar shapes. Navarro, Nicolas Montuire, Sophie Laffont, Rémi Steimetz, Emilie Onofrei, Catalina Royer, Aurélien École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL) Biogéosciences UMR 6282 (BGS) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) UFR Sciences de la Vie, de la Terre et de l'Environnement (Université de Bourgogne) (UFR SVTE) Université de Bourgogne (UB) 2018 https://hal.archives-ouvertes.fr/hal-01883813 https://doi.org/10.3390/quat1030020 en eng HAL CCSD MDPI info:eu-repo/semantics/altIdentifier/doi/10.3390/quat1030020 hal-01883813 https://hal.archives-ouvertes.fr/hal-01883813 doi:10.3390/quat1030020 ISSN: 2571-550X Quaternary https://hal.archives-ouvertes.fr/hal-01883813 Quaternary, MDPI, 2018, Advances in Quaternary Studies: The Contribution of Mammalian Fossil Record, 1 (3), pp.20. ⟨10.3390/quat1030020⟩ https://www.mdpi.com/2571-550X/1/3/20 geometric morphometrics taxonomy arvicoline molar shape [SDV.BID]Life Sciences [q-bio]/Biodiversity [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory info:eu-repo/semantics/article Journal articles 2018 ftunivnantes https://doi.org/10.3390/quat1030020 2022-10-05T00:39:29Z 18 pages International audience Accurate species identification in fossil remains is a complex task but is a key component for developing good inferences on many, if not all, fundamental questions in macroecology and macroevolution. In the Quaternary, arvicolines are very abundant remains in archeological and paleontological sites in Western Europe and their identification is often based on the first lower molar. The common vole Microtus arvalis (Pallas, 1778) and the field vole Microtus agrestis (Linnaeus, 1761) are commonly found in those deposits. These two species are genetically and ecologically divergent. Nonetheless, their lower molars, on which species identification is done, exhibit a large morphological variation that can potentially lead to some confusion and misinterpretation. Moreover, molecular data suggest that present-day M. agrestis populations are a complex of divergent lineages, some of them being recognized nowadays as valid species. On the basis of extant populations representing a large part of the present-day geographical distribution of these two species, we developed a classification model based on geometric morphometrics of the first lower molar. Our statistical model was then applied on four fossil sites selected to evaluate the relevance of taxonomic determination found in species lists. The model using landmarks describing the overall shape of the first lower molar classifies the two species with the smallest prediction error together with very high individual posterior probabilities. The obtained classification is much better than those arising from shapes of any specific molar part such as the anterior loop, asymmetry or peculiar triangle shape. Discrepancies with expert classification on fossils suggest that existing faunal lists should always be considered cautiously for these two species. Our morphometric model provides a first step towards a rationalized way of revising past collections and expertise for future small mammal assemblages. It will thus help us better ... Article in Journal/Newspaper Common vole Microtus arvalis Université de Nantes: HAL-UNIV-NANTES Quaternary 1 3 20 |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
geometric morphometrics taxonomy arvicoline molar shape [SDV.BID]Life Sciences [q-bio]/Biodiversity [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory |
spellingShingle |
geometric morphometrics taxonomy arvicoline molar shape [SDV.BID]Life Sciences [q-bio]/Biodiversity [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory Navarro, Nicolas Montuire, Sophie Laffont, Rémi Steimetz, Emilie Onofrei, Catalina Royer, Aurélien Identifying past remains of morphologically similar vole species using molar shapes. |
topic_facet |
geometric morphometrics taxonomy arvicoline molar shape [SDV.BID]Life Sciences [q-bio]/Biodiversity [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory |
description |
18 pages International audience Accurate species identification in fossil remains is a complex task but is a key component for developing good inferences on many, if not all, fundamental questions in macroecology and macroevolution. In the Quaternary, arvicolines are very abundant remains in archeological and paleontological sites in Western Europe and their identification is often based on the first lower molar. The common vole Microtus arvalis (Pallas, 1778) and the field vole Microtus agrestis (Linnaeus, 1761) are commonly found in those deposits. These two species are genetically and ecologically divergent. Nonetheless, their lower molars, on which species identification is done, exhibit a large morphological variation that can potentially lead to some confusion and misinterpretation. Moreover, molecular data suggest that present-day M. agrestis populations are a complex of divergent lineages, some of them being recognized nowadays as valid species. On the basis of extant populations representing a large part of the present-day geographical distribution of these two species, we developed a classification model based on geometric morphometrics of the first lower molar. Our statistical model was then applied on four fossil sites selected to evaluate the relevance of taxonomic determination found in species lists. The model using landmarks describing the overall shape of the first lower molar classifies the two species with the smallest prediction error together with very high individual posterior probabilities. The obtained classification is much better than those arising from shapes of any specific molar part such as the anterior loop, asymmetry or peculiar triangle shape. Discrepancies with expert classification on fossils suggest that existing faunal lists should always be considered cautiously for these two species. Our morphometric model provides a first step towards a rationalized way of revising past collections and expertise for future small mammal assemblages. It will thus help us better ... |
author2 |
École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL) Biogéosciences UMR 6282 (BGS) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) UFR Sciences de la Vie, de la Terre et de l'Environnement (Université de Bourgogne) (UFR SVTE) Université de Bourgogne (UB) |
format |
Article in Journal/Newspaper |
author |
Navarro, Nicolas Montuire, Sophie Laffont, Rémi Steimetz, Emilie Onofrei, Catalina Royer, Aurélien |
author_facet |
Navarro, Nicolas Montuire, Sophie Laffont, Rémi Steimetz, Emilie Onofrei, Catalina Royer, Aurélien |
author_sort |
Navarro, Nicolas |
title |
Identifying past remains of morphologically similar vole species using molar shapes. |
title_short |
Identifying past remains of morphologically similar vole species using molar shapes. |
title_full |
Identifying past remains of morphologically similar vole species using molar shapes. |
title_fullStr |
Identifying past remains of morphologically similar vole species using molar shapes. |
title_full_unstemmed |
Identifying past remains of morphologically similar vole species using molar shapes. |
title_sort |
identifying past remains of morphologically similar vole species using molar shapes. |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.archives-ouvertes.fr/hal-01883813 https://doi.org/10.3390/quat1030020 |
genre |
Common vole Microtus arvalis |
genre_facet |
Common vole Microtus arvalis |
op_source |
ISSN: 2571-550X Quaternary https://hal.archives-ouvertes.fr/hal-01883813 Quaternary, MDPI, 2018, Advances in Quaternary Studies: The Contribution of Mammalian Fossil Record, 1 (3), pp.20. ⟨10.3390/quat1030020⟩ https://www.mdpi.com/2571-550X/1/3/20 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3390/quat1030020 hal-01883813 https://hal.archives-ouvertes.fr/hal-01883813 doi:10.3390/quat1030020 |
op_doi |
https://doi.org/10.3390/quat1030020 |
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Quaternary |
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1 |
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20 |
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1766392045067304960 |