Response of Arctic benthic foraminiferal traits to past environmental changes
The Arctic is subjected to all-encompassing disruptions in marine ecosystems caused by anthropogenic warming. To provide reliable estimates of how future changes will affect the ecosystems, knowledge of Arctic marine ecosystem responses to past environmental variability beyond the instrumental era i...
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2023
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Online Access: | https://pure.au.dk/portal/en/publications/4f771ea0-cf5c-46f7-8f6f-37314540a9e8 https://doi.org/10.1038/s41598-023-47603-w |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/4f771ea0-cf5c-46f7-8f6f-37314540a9e8 2024-01-28T10:02:09+01:00 Response of Arctic benthic foraminiferal traits to past environmental changes Hansen, Katrine Elnegaard Pearce, Christof Seidenkrantz, Marit-Solveig 2023-12-13 https://pure.au.dk/portal/en/publications/4f771ea0-cf5c-46f7-8f6f-37314540a9e8 https://doi.org/10.1038/s41598-023-47603-w eng eng https://pure.au.dk/portal/en/publications/4f771ea0-cf5c-46f7-8f6f-37314540a9e8 info:eu-repo/semantics/restrictedAccess Hansen , K E , Pearce , C & Seidenkrantz , M-S 2023 , ' Response of Arctic benthic foraminiferal traits to past environmental changes ' , Scientific Reports , vol. 13 , no. 1 , 22135 . https://doi.org/10.1038/s41598-023-47603-w article 2023 ftuniaarhuspubl https://doi.org/10.1038/s41598-023-47603-w 2024-01-04T00:00:59Z The Arctic is subjected to all-encompassing disruptions in marine ecosystems caused by anthropogenic warming. To provide reliable estimates of how future changes will affect the ecosystems, knowledge of Arctic marine ecosystem responses to past environmental variability beyond the instrumental era is essential. Here, we present a novel approach on how to evaluate the state of benthic marine biotic conditions during the deglacial and Holocene period on the Northeast Greenland shelf. Benthic foraminiferal species were assigned traits (e.g., oxygen tolerance, food preferences) aiming to identify past faunal changes as a response to external forcing mechanisms. This approach was applied on sediment cores from offshore Northeast Greenland. We performed numerical rate-of-change detection to determine significant changes in the benthic foraminiferal traits. That way, the significant abrupt trait changes can be assessed across sites, providing a better understanding of the impact of climate drivers on the traits. Our results demonstrate that during the last ~ 14,000 years, bottom water oxygen is the main factor affecting the variability in the benthic foraminiferal faunas in this area. Our results show that significant changes in the traits correspond to drastic climate perturbations. Specifically, the deglacial-Holocene transition and mid-Holocene warm period exhibited significant change, with several trait turnovers. Article in Journal/Newspaper Arctic Arctic Foraminifera* Greenland Aarhus University: Research Arctic Greenland Scientific Reports 13 1 |
institution |
Open Polar |
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Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
description |
The Arctic is subjected to all-encompassing disruptions in marine ecosystems caused by anthropogenic warming. To provide reliable estimates of how future changes will affect the ecosystems, knowledge of Arctic marine ecosystem responses to past environmental variability beyond the instrumental era is essential. Here, we present a novel approach on how to evaluate the state of benthic marine biotic conditions during the deglacial and Holocene period on the Northeast Greenland shelf. Benthic foraminiferal species were assigned traits (e.g., oxygen tolerance, food preferences) aiming to identify past faunal changes as a response to external forcing mechanisms. This approach was applied on sediment cores from offshore Northeast Greenland. We performed numerical rate-of-change detection to determine significant changes in the benthic foraminiferal traits. That way, the significant abrupt trait changes can be assessed across sites, providing a better understanding of the impact of climate drivers on the traits. Our results demonstrate that during the last ~ 14,000 years, bottom water oxygen is the main factor affecting the variability in the benthic foraminiferal faunas in this area. Our results show that significant changes in the traits correspond to drastic climate perturbations. Specifically, the deglacial-Holocene transition and mid-Holocene warm period exhibited significant change, with several trait turnovers. |
format |
Article in Journal/Newspaper |
author |
Hansen, Katrine Elnegaard Pearce, Christof Seidenkrantz, Marit-Solveig |
spellingShingle |
Hansen, Katrine Elnegaard Pearce, Christof Seidenkrantz, Marit-Solveig Response of Arctic benthic foraminiferal traits to past environmental changes |
author_facet |
Hansen, Katrine Elnegaard Pearce, Christof Seidenkrantz, Marit-Solveig |
author_sort |
Hansen, Katrine Elnegaard |
title |
Response of Arctic benthic foraminiferal traits to past environmental changes |
title_short |
Response of Arctic benthic foraminiferal traits to past environmental changes |
title_full |
Response of Arctic benthic foraminiferal traits to past environmental changes |
title_fullStr |
Response of Arctic benthic foraminiferal traits to past environmental changes |
title_full_unstemmed |
Response of Arctic benthic foraminiferal traits to past environmental changes |
title_sort |
response of arctic benthic foraminiferal traits to past environmental changes |
publishDate |
2023 |
url |
https://pure.au.dk/portal/en/publications/4f771ea0-cf5c-46f7-8f6f-37314540a9e8 https://doi.org/10.1038/s41598-023-47603-w |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Foraminifera* Greenland |
genre_facet |
Arctic Arctic Foraminifera* Greenland |
op_source |
Hansen , K E , Pearce , C & Seidenkrantz , M-S 2023 , ' Response of Arctic benthic foraminiferal traits to past environmental changes ' , Scientific Reports , vol. 13 , no. 1 , 22135 . https://doi.org/10.1038/s41598-023-47603-w |
op_relation |
https://pure.au.dk/portal/en/publications/4f771ea0-cf5c-46f7-8f6f-37314540a9e8 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1038/s41598-023-47603-w |
container_title |
Scientific Reports |
container_volume |
13 |
container_issue |
1 |
_version_ |
1789327652958502912 |