Data from: Response of deep-sea biodiversity to abrupt deglacial and Holocene climate changes in the North Atlantic Ocean
Aim: Little is known about how marine biodiversity responds to oceanographic and climatic changes over the decadal to centennial time-scales which are most relevant for predicted climate changes due to greenhouse gas forcing. This paper aims to reveal decadal–centennial scale deep-sea biodiversity d...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:85589 2023-07-02T03:33:05+02:00 Data from: Response of deep-sea biodiversity to abrupt deglacial and Holocene climate changes in the North Atlantic Ocean Yasuhara, Moriaki Okahashi, Hisayo Cronin, Thomas M. Rasmussen, Tine L. Hunt, Gene 2014-04-25T20:37:22.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-6o-hmr1 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85589 unknown doi:10.5061/dryad.53vs3/1 doi:10.5061/dryad.53vs3/2 doi:10.5061/dryad.53vs3/3 doi:10.5061/dryad.53vs3/4 doi:10.5061/dryad.53vs3/5 doi:10.5061/dryad.53vs3/6 doi:10.5061/dryad.53vs3/7 doi:10.5061/dryad.53vs3/8 doi:10.1111/geb.12178 http://nbn-resolving.org/urn:nbn:nl:ui:13-6o-hmr1 doi:10.5061/dryad.53vs3 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85589 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2014 ftdans https://doi.org/10.5061/dryad.53vs3/110.5061/dryad.53vs3/210.5061/dryad.53vs3/310.5061/dryad.53vs3/410.5061/dryad.53vs3/510.5061/dryad.53vs3/610.5061/dryad.53vs3/710.5061/dryad.53vs3/810.1111/geb.1217810.5061/dryad.53vs3 2023-06-13T13:12:43Z Aim: Little is known about how marine biodiversity responds to oceanographic and climatic changes over the decadal to centennial time-scales which are most relevant for predicted climate changes due to greenhouse gas forcing. This paper aims to reveal decadal–centennial scale deep-sea biodiversity dynamics for the last 20,000 years and then explore potential environmental drivers. Location: The North Atlantic Ocean. Methods: We investigated deep-sea benthic microfossil records to reveal biodiversity dynamics and subsequently applied comprehensive ecological modelling to test possible environmental factors (i.e. surface productivity, seasonality of productivity or deepwater circulation related to bottom-water temperature) that may have influenced deep-sea biodiversity over these time-scales. Results: Deep-sea biodiversity changed synchronously with stadial–interstadial climate changes over the last 20,000 years across a large area of the North Atlantic in both ostracod crustaceans and foraminiferan protozoa (in spite of their different dispersal abilities). Species diversity rapidly increased during abrupt stadial events during the last deglacial and the Holocene interglacial periods. These include the well-known Heinrich 1, the Younger Dryas and the 8.2 ka events when the strength of Atlantic Meridional Overturning Circulation (AMOC) decreased. There is also evidence for quasi-cyclic changes in biodiversity at a c. 1500-year periodicity, consistent with the well-known ‘1500-year climatic cycle’. Statistical analyses revealed that AMOC variability (probably specifically the variability in AMOC-driven bottom-water temperature) is correlated with deep-sea biodiversity. Main conclusions: Our finding of a significant AMOC–diversity relationship may indicate pervasive control of the diversity of deep-sea benthic species by rapidly changing climate, specifically bottom-water temperature, over decadal to centennial time-scales. Our results, based on highly resolved fossil records, may portend pervasive, synchronous and ... Other/Unknown Material North Atlantic Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Yasuhara, Moriaki Okahashi, Hisayo Cronin, Thomas M. Rasmussen, Tine L. Hunt, Gene Data from: Response of deep-sea biodiversity to abrupt deglacial and Holocene climate changes in the North Atlantic Ocean |
topic_facet |
Life sciences medicine and health care |
description |
Aim: Little is known about how marine biodiversity responds to oceanographic and climatic changes over the decadal to centennial time-scales which are most relevant for predicted climate changes due to greenhouse gas forcing. This paper aims to reveal decadal–centennial scale deep-sea biodiversity dynamics for the last 20,000 years and then explore potential environmental drivers. Location: The North Atlantic Ocean. Methods: We investigated deep-sea benthic microfossil records to reveal biodiversity dynamics and subsequently applied comprehensive ecological modelling to test possible environmental factors (i.e. surface productivity, seasonality of productivity or deepwater circulation related to bottom-water temperature) that may have influenced deep-sea biodiversity over these time-scales. Results: Deep-sea biodiversity changed synchronously with stadial–interstadial climate changes over the last 20,000 years across a large area of the North Atlantic in both ostracod crustaceans and foraminiferan protozoa (in spite of their different dispersal abilities). Species diversity rapidly increased during abrupt stadial events during the last deglacial and the Holocene interglacial periods. These include the well-known Heinrich 1, the Younger Dryas and the 8.2 ka events when the strength of Atlantic Meridional Overturning Circulation (AMOC) decreased. There is also evidence for quasi-cyclic changes in biodiversity at a c. 1500-year periodicity, consistent with the well-known ‘1500-year climatic cycle’. Statistical analyses revealed that AMOC variability (probably specifically the variability in AMOC-driven bottom-water temperature) is correlated with deep-sea biodiversity. Main conclusions: Our finding of a significant AMOC–diversity relationship may indicate pervasive control of the diversity of deep-sea benthic species by rapidly changing climate, specifically bottom-water temperature, over decadal to centennial time-scales. Our results, based on highly resolved fossil records, may portend pervasive, synchronous and ... |
author |
Yasuhara, Moriaki Okahashi, Hisayo Cronin, Thomas M. Rasmussen, Tine L. Hunt, Gene |
author_facet |
Yasuhara, Moriaki Okahashi, Hisayo Cronin, Thomas M. Rasmussen, Tine L. Hunt, Gene |
author_sort |
Yasuhara, Moriaki |
title |
Data from: Response of deep-sea biodiversity to abrupt deglacial and Holocene climate changes in the North Atlantic Ocean |
title_short |
Data from: Response of deep-sea biodiversity to abrupt deglacial and Holocene climate changes in the North Atlantic Ocean |
title_full |
Data from: Response of deep-sea biodiversity to abrupt deglacial and Holocene climate changes in the North Atlantic Ocean |
title_fullStr |
Data from: Response of deep-sea biodiversity to abrupt deglacial and Holocene climate changes in the North Atlantic Ocean |
title_full_unstemmed |
Data from: Response of deep-sea biodiversity to abrupt deglacial and Holocene climate changes in the North Atlantic Ocean |
title_sort |
data from: response of deep-sea biodiversity to abrupt deglacial and holocene climate changes in the north atlantic ocean |
publishDate |
2014 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-6o-hmr1 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85589 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.5061/dryad.53vs3/1 doi:10.5061/dryad.53vs3/2 doi:10.5061/dryad.53vs3/3 doi:10.5061/dryad.53vs3/4 doi:10.5061/dryad.53vs3/5 doi:10.5061/dryad.53vs3/6 doi:10.5061/dryad.53vs3/7 doi:10.5061/dryad.53vs3/8 doi:10.1111/geb.12178 http://nbn-resolving.org/urn:nbn:nl:ui:13-6o-hmr1 doi:10.5061/dryad.53vs3 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85589 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.53vs3/110.5061/dryad.53vs3/210.5061/dryad.53vs3/310.5061/dryad.53vs3/410.5061/dryad.53vs3/510.5061/dryad.53vs3/610.5061/dryad.53vs3/710.5061/dryad.53vs3/810.1111/geb.1217810.5061/dryad.53vs3 |
_version_ |
1770272887682367488 |