Biomarkers in Ringed Seals Reveal Recent Onset of Borealization in the High- Compared to the Mid-Latitude Canadian Arctic
<jats:p>Warming of the Arctic has resulted in environmental and ecological changes, termed borealization, leading to the northward shift of temperate species. Borealization has occurred across all trophic levels, altering the structure of the food web. The onset and rate of borealization likel...
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ftunivliverpool:oai:livrepository.liverpool.ac.uk:3136182 2024-09-15T17:51:23+00:00 Biomarkers in Ringed Seals Reveal Recent Onset of Borealization in the High- Compared to the Mid-Latitude Canadian Arctic de la Vega, Camille Mahaffey, Claire Yurkowski, David J Norman, Louisa Simpson, Elysia Smout, Sophie Ferguson, Steven H Jeffreys, Rachel M 2021 text https://livrepository.liverpool.ac.uk/3136182/ https://doi.org/10.3389/fmars.2021.700687 https://livrepository.liverpool.ac.uk/3136182/1/de%20la%20Vega%20et%20al.%202021%20-%20Mar.Fron.Mar.Sci.pdf en eng Frontiers Media SA https://livrepository.liverpool.ac.uk/3136182/1/de%20la%20Vega%20et%20al.%202021%20-%20Mar.Fron.Mar.Sci.pdf de la Vega, Camille, Mahaffey, Claire orcid:0000-0002-4215-7271 , Yurkowski, David J, Norman, Louisa orcid:0000-0001-9720-4664 , Simpson, Elysia, Smout, Sophie, Ferguson, Steven H and Jeffreys, Rachel M orcid:0000-0001-6114-2334 (2021) Biomarkers in Ringed Seals Reveal Recent Onset of Borealization in the High- Compared to the Mid-Latitude Canadian Arctic. Frontiers in Marine Science, 8. 700687-. Article NonPeerReviewed 2021 ftunivliverpool https://doi.org/10.3389/fmars.2021.700687 2024-07-08T14:17:39Z <jats:p>Warming of the Arctic has resulted in environmental and ecological changes, termed borealization, leading to the northward shift of temperate species. Borealization has occurred across all trophic levels, altering the structure of the food web. The onset and rate of borealization likely varies with latitude, depending on local warming and advection of warmer water into the Arctic. In order to assess latitudinal trends in food web structure in the Arctic, we analyzed stable nitrogen isotopes of specific amino acids alongside bulk stable carbon isotopes in ringed seal muscle tissue from the Canadian Arctic Archipelago (high-Arctic) and Southern Baffin Bay (mid-Arctic) from 1990 to 2016. Our results indicate a shift in food web structure in the high-Arctic that has occurred more recently when compared with the mid-Arctic. Specifically, over the past 25 years, the trophic position of ringed seals from the mid-Arctic was largely constant, whereas the trophic position of ringed seals decreased in the high-Arctic, reaching similar values observed in the mid-Arctic in 2015–2016. This suggests a potential shortening of the food chain length in the high-Arctic, possibly driven by changes in zooplankton communities feeding complexity in association with sea ice decline. This study identifies a temporal offset in the timing of borealization in the Canadian Arctic, resulting in different response of food webs to ecological changes, depending on latitude.</jats:p> Article in Journal/Newspaper Arctic Arctic Archipelago Arctic Baffin Bay Baffin Bay Baffin Canadian Arctic Archipelago ringed seal Sea ice Zooplankton The University of Liverpool Repository Frontiers in Marine Science 8 |
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The University of Liverpool Repository |
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ftunivliverpool |
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English |
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<jats:p>Warming of the Arctic has resulted in environmental and ecological changes, termed borealization, leading to the northward shift of temperate species. Borealization has occurred across all trophic levels, altering the structure of the food web. The onset and rate of borealization likely varies with latitude, depending on local warming and advection of warmer water into the Arctic. In order to assess latitudinal trends in food web structure in the Arctic, we analyzed stable nitrogen isotopes of specific amino acids alongside bulk stable carbon isotopes in ringed seal muscle tissue from the Canadian Arctic Archipelago (high-Arctic) and Southern Baffin Bay (mid-Arctic) from 1990 to 2016. Our results indicate a shift in food web structure in the high-Arctic that has occurred more recently when compared with the mid-Arctic. Specifically, over the past 25 years, the trophic position of ringed seals from the mid-Arctic was largely constant, whereas the trophic position of ringed seals decreased in the high-Arctic, reaching similar values observed in the mid-Arctic in 2015–2016. This suggests a potential shortening of the food chain length in the high-Arctic, possibly driven by changes in zooplankton communities feeding complexity in association with sea ice decline. This study identifies a temporal offset in the timing of borealization in the Canadian Arctic, resulting in different response of food webs to ecological changes, depending on latitude.</jats:p> |
format |
Article in Journal/Newspaper |
author |
de la Vega, Camille Mahaffey, Claire Yurkowski, David J Norman, Louisa Simpson, Elysia Smout, Sophie Ferguson, Steven H Jeffreys, Rachel M |
spellingShingle |
de la Vega, Camille Mahaffey, Claire Yurkowski, David J Norman, Louisa Simpson, Elysia Smout, Sophie Ferguson, Steven H Jeffreys, Rachel M Biomarkers in Ringed Seals Reveal Recent Onset of Borealization in the High- Compared to the Mid-Latitude Canadian Arctic |
author_facet |
de la Vega, Camille Mahaffey, Claire Yurkowski, David J Norman, Louisa Simpson, Elysia Smout, Sophie Ferguson, Steven H Jeffreys, Rachel M |
author_sort |
de la Vega, Camille |
title |
Biomarkers in Ringed Seals Reveal Recent Onset of Borealization in the High- Compared to the Mid-Latitude Canadian Arctic |
title_short |
Biomarkers in Ringed Seals Reveal Recent Onset of Borealization in the High- Compared to the Mid-Latitude Canadian Arctic |
title_full |
Biomarkers in Ringed Seals Reveal Recent Onset of Borealization in the High- Compared to the Mid-Latitude Canadian Arctic |
title_fullStr |
Biomarkers in Ringed Seals Reveal Recent Onset of Borealization in the High- Compared to the Mid-Latitude Canadian Arctic |
title_full_unstemmed |
Biomarkers in Ringed Seals Reveal Recent Onset of Borealization in the High- Compared to the Mid-Latitude Canadian Arctic |
title_sort |
biomarkers in ringed seals reveal recent onset of borealization in the high- compared to the mid-latitude canadian arctic |
publisher |
Frontiers Media SA |
publishDate |
2021 |
url |
https://livrepository.liverpool.ac.uk/3136182/ https://doi.org/10.3389/fmars.2021.700687 https://livrepository.liverpool.ac.uk/3136182/1/de%20la%20Vega%20et%20al.%202021%20-%20Mar.Fron.Mar.Sci.pdf |
genre |
Arctic Arctic Archipelago Arctic Baffin Bay Baffin Bay Baffin Canadian Arctic Archipelago ringed seal Sea ice Zooplankton |
genre_facet |
Arctic Arctic Archipelago Arctic Baffin Bay Baffin Bay Baffin Canadian Arctic Archipelago ringed seal Sea ice Zooplankton |
op_relation |
https://livrepository.liverpool.ac.uk/3136182/1/de%20la%20Vega%20et%20al.%202021%20-%20Mar.Fron.Mar.Sci.pdf de la Vega, Camille, Mahaffey, Claire orcid:0000-0002-4215-7271 , Yurkowski, David J, Norman, Louisa orcid:0000-0001-9720-4664 , Simpson, Elysia, Smout, Sophie, Ferguson, Steven H and Jeffreys, Rachel M orcid:0000-0001-6114-2334 (2021) Biomarkers in Ringed Seals Reveal Recent Onset of Borealization in the High- Compared to the Mid-Latitude Canadian Arctic. Frontiers in Marine Science, 8. 700687-. |
op_doi |
https://doi.org/10.3389/fmars.2021.700687 |
container_title |
Frontiers in Marine Science |
container_volume |
8 |
_version_ |
1810293268420755456 |