Giant beaver palaeoecology inferred from stable isotopes
This is a multi-individual (n = 11), stable carbon and nitrogen isotope study of bone collagen (δ(13)C(col) and δ(15)N(col)) from the giant beaver (genus Castoroides). The now-extinct giant beaver was once one of the most widespread Pleistocene megafauna in North America. We confirm that Castoroides...
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ftpubmed:oai:pubmedcentral.nih.gov:6509321 2023-05-15T16:40:49+02:00 Giant beaver palaeoecology inferred from stable isotopes Plint, Tessa Longstaffe, Fred J. Zazula, Grant 2019-05-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6509321/ http://www.ncbi.nlm.nih.gov/pubmed/31073145 https://doi.org/10.1038/s41598-019-43710-9 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6509321/ http://www.ncbi.nlm.nih.gov/pubmed/31073145 http://dx.doi.org/10.1038/s41598-019-43710-9 © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2019 ftpubmed https://doi.org/10.1038/s41598-019-43710-9 2019-05-26T00:18:05Z This is a multi-individual (n = 11), stable carbon and nitrogen isotope study of bone collagen (δ(13)C(col) and δ(15)N(col)) from the giant beaver (genus Castoroides). The now-extinct giant beaver was once one of the most widespread Pleistocene megafauna in North America. We confirm that Castoroides consumed a diet of predominantly submerged aquatic macrophytes. These dietary preferences rendered the giant beaver highly dependent on wetland habitat for survival. Castoroides’ δ(13)C(col) and δ(15)N(col) do not support the hypothesis that the giant beaver consumed trees or woody plants, which suggests that it did not share the same behaviours as Castor (i.e., tree-cutting and harvesting). The onset of warmer, more arid conditions likely contributed to the extinction of Castoroides. Six new radiocarbon dates help establish the chronology of the northward dispersal of the giant beaver in Beringia, indicating a correlation with ice sheet retreat. Text Ice Sheet Beringia PubMed Central (PMC) Scientific Reports 9 1 |
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Article Plint, Tessa Longstaffe, Fred J. Zazula, Grant Giant beaver palaeoecology inferred from stable isotopes |
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This is a multi-individual (n = 11), stable carbon and nitrogen isotope study of bone collagen (δ(13)C(col) and δ(15)N(col)) from the giant beaver (genus Castoroides). The now-extinct giant beaver was once one of the most widespread Pleistocene megafauna in North America. We confirm that Castoroides consumed a diet of predominantly submerged aquatic macrophytes. These dietary preferences rendered the giant beaver highly dependent on wetland habitat for survival. Castoroides’ δ(13)C(col) and δ(15)N(col) do not support the hypothesis that the giant beaver consumed trees or woody plants, which suggests that it did not share the same behaviours as Castor (i.e., tree-cutting and harvesting). The onset of warmer, more arid conditions likely contributed to the extinction of Castoroides. Six new radiocarbon dates help establish the chronology of the northward dispersal of the giant beaver in Beringia, indicating a correlation with ice sheet retreat. |
format |
Text |
author |
Plint, Tessa Longstaffe, Fred J. Zazula, Grant |
author_facet |
Plint, Tessa Longstaffe, Fred J. Zazula, Grant |
author_sort |
Plint, Tessa |
title |
Giant beaver palaeoecology inferred from stable isotopes |
title_short |
Giant beaver palaeoecology inferred from stable isotopes |
title_full |
Giant beaver palaeoecology inferred from stable isotopes |
title_fullStr |
Giant beaver palaeoecology inferred from stable isotopes |
title_full_unstemmed |
Giant beaver palaeoecology inferred from stable isotopes |
title_sort |
giant beaver palaeoecology inferred from stable isotopes |
publisher |
Nature Publishing Group UK |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6509321/ http://www.ncbi.nlm.nih.gov/pubmed/31073145 https://doi.org/10.1038/s41598-019-43710-9 |
genre |
Ice Sheet Beringia |
genre_facet |
Ice Sheet Beringia |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6509321/ http://www.ncbi.nlm.nih.gov/pubmed/31073145 http://dx.doi.org/10.1038/s41598-019-43710-9 |
op_rights |
© The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
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CC-BY |
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https://doi.org/10.1038/s41598-019-43710-9 |
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Scientific Reports |
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9 |
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