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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Online Access: | https://doi.org/10.5061/dryad.53vs3 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::1df62b7bfa050c09859142d43e2e7ba4 2023-05-15T17:28:52+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 2015-01-01 https://doi.org/10.5061/dryad.53vs3 undefined unknown http://dx.doi.org/10.5061/dryad.53vs3 https://dx.doi.org/10.5061/dryad.53vs3 lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:85589 10.5061/dryad.53vs3 oai:easy.dans.knaw.nl:easy-dataset:85589 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 Life sciences medicine and health care Abrupt climate change decadal–centennial time-scales deep sea deepwater circulation macroecology paleoecology species diversity temperature North Atlantic Ocean Holocene Quaternary Pleistocene Foraminifera Ostracoda envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2015 fttriple https://doi.org/10.5061/dryad.53vs3 2023-01-22T17:23:37Z 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 ... Dataset North Atlantic Unknown |
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Open Polar |
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Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care Abrupt climate change decadal–centennial time-scales deep sea deepwater circulation macroecology paleoecology species diversity temperature North Atlantic Ocean Holocene Quaternary Pleistocene Foraminifera Ostracoda envir geo |
spellingShingle |
Life sciences medicine and health care Abrupt climate change decadal–centennial time-scales deep sea deepwater circulation macroecology paleoecology species diversity temperature North Atlantic Ocean Holocene Quaternary Pleistocene Foraminifera Ostracoda envir geo 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 Abrupt climate change decadal–centennial time-scales deep sea deepwater circulation macroecology paleoecology species diversity temperature North Atlantic Ocean Holocene Quaternary Pleistocene Foraminifera Ostracoda envir geo |
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 ... |
format |
Dataset |
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 |
2015 |
url |
https://doi.org/10.5061/dryad.53vs3 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:85589 10.5061/dryad.53vs3 oai:easy.dans.knaw.nl:easy-dataset:85589 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
op_relation |
http://dx.doi.org/10.5061/dryad.53vs3 https://dx.doi.org/10.5061/dryad.53vs3 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.53vs3 |
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1766121991448821760 |