Oceanographic and biogeochemical drivers cause divergent trends in the nitrogen isoscape in a changing Arctic Ocean
Nitrogen stable isotopes (δ(15)N) are used to study food web and foraging dynamics due to the step-wise enrichment of tissues with increasing trophic level, but they rely on the isoscape baseline that varies markedly in the Arctic due to the interplay between Atlantic- and Pacific-origin waters. Usi...
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ftpubmed:oai:pubmedcentral.nih.gov:8692545 2023-05-15T14:35:28+02:00 Oceanographic and biogeochemical drivers cause divergent trends in the nitrogen isoscape in a changing Arctic Ocean Buchanan, Pearse James Tagliabue, Alessandro de la Vega, Camille Mahaffey, Claire 2021-10-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8692545/ http://www.ncbi.nlm.nih.gov/pubmed/34628601 https://doi.org/10.1007/s13280-021-01635-6 en eng Springer Netherlands http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8692545/ http://www.ncbi.nlm.nih.gov/pubmed/34628601 http://dx.doi.org/10.1007/s13280-021-01635-6 © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Ambio Changing Arctic Ocean Text 2021 ftpubmed https://doi.org/10.1007/s13280-021-01635-6 2022-01-09T01:32:54Z Nitrogen stable isotopes (δ(15)N) are used to study food web and foraging dynamics due to the step-wise enrichment of tissues with increasing trophic level, but they rely on the isoscape baseline that varies markedly in the Arctic due to the interplay between Atlantic- and Pacific-origin waters. Using a hierarchy of simulations with a state-of-the-art ocean-biogeochemical model, we demonstrate that the canonical isotopic gradient of 2–3‰ between the Pacific and Atlantic sectors of the Arctic Ocean has grown to 3–4‰ and will continue to expand under a high emissions climate change scenario by the end of the twenty-first century. δ(15)N increases in the Pacific-influenced high Arctic due to increased primary production, while Atlantic sector decreases result from the integrated effects of Atlantic inflow and anthropogenic inputs. While these trends will complicate longitudinal food web studies using δ(15)N, they may aid those focussed on movement as the Arctic isoscape becomes more regionally distinct. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s13280-021-01635-6. Text Arctic Arctic Ocean Climate change PubMed Central (PMC) Arctic Arctic Ocean Pacific Ambio 51 2 383 397 |
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language |
English |
topic |
Changing Arctic Ocean |
spellingShingle |
Changing Arctic Ocean Buchanan, Pearse James Tagliabue, Alessandro de la Vega, Camille Mahaffey, Claire Oceanographic and biogeochemical drivers cause divergent trends in the nitrogen isoscape in a changing Arctic Ocean |
topic_facet |
Changing Arctic Ocean |
description |
Nitrogen stable isotopes (δ(15)N) are used to study food web and foraging dynamics due to the step-wise enrichment of tissues with increasing trophic level, but they rely on the isoscape baseline that varies markedly in the Arctic due to the interplay between Atlantic- and Pacific-origin waters. Using a hierarchy of simulations with a state-of-the-art ocean-biogeochemical model, we demonstrate that the canonical isotopic gradient of 2–3‰ between the Pacific and Atlantic sectors of the Arctic Ocean has grown to 3–4‰ and will continue to expand under a high emissions climate change scenario by the end of the twenty-first century. δ(15)N increases in the Pacific-influenced high Arctic due to increased primary production, while Atlantic sector decreases result from the integrated effects of Atlantic inflow and anthropogenic inputs. While these trends will complicate longitudinal food web studies using δ(15)N, they may aid those focussed on movement as the Arctic isoscape becomes more regionally distinct. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s13280-021-01635-6. |
format |
Text |
author |
Buchanan, Pearse James Tagliabue, Alessandro de la Vega, Camille Mahaffey, Claire |
author_facet |
Buchanan, Pearse James Tagliabue, Alessandro de la Vega, Camille Mahaffey, Claire |
author_sort |
Buchanan, Pearse James |
title |
Oceanographic and biogeochemical drivers cause divergent trends in the nitrogen isoscape in a changing Arctic Ocean |
title_short |
Oceanographic and biogeochemical drivers cause divergent trends in the nitrogen isoscape in a changing Arctic Ocean |
title_full |
Oceanographic and biogeochemical drivers cause divergent trends in the nitrogen isoscape in a changing Arctic Ocean |
title_fullStr |
Oceanographic and biogeochemical drivers cause divergent trends in the nitrogen isoscape in a changing Arctic Ocean |
title_full_unstemmed |
Oceanographic and biogeochemical drivers cause divergent trends in the nitrogen isoscape in a changing Arctic Ocean |
title_sort |
oceanographic and biogeochemical drivers cause divergent trends in the nitrogen isoscape in a changing arctic ocean |
publisher |
Springer Netherlands |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8692545/ http://www.ncbi.nlm.nih.gov/pubmed/34628601 https://doi.org/10.1007/s13280-021-01635-6 |
geographic |
Arctic Arctic Ocean Pacific |
geographic_facet |
Arctic Arctic Ocean Pacific |
genre |
Arctic Arctic Ocean Climate change |
genre_facet |
Arctic Arctic Ocean Climate change |
op_source |
Ambio |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8692545/ http://www.ncbi.nlm.nih.gov/pubmed/34628601 http://dx.doi.org/10.1007/s13280-021-01635-6 |
op_rights |
© The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s13280-021-01635-6 |
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