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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ftdryad:oai:v1.datadryad.org:10255/dryad.61782 2023-05-15T17:28:53+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 North Atlantic Ocean Holocene Quaternary Pleistocene 2014-04-25T18:37:22Z http://hdl.handle.net/10255/dryad.61782 https://doi.org/10.5061/dryad.53vs3 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 doi:10.5061/dryad.53vs3 Yasuhara M, Okahashi H, Cronin TM, Rasmussen TL, Hunt G (2014) Response of deep-sea biodiversity to abrupt deglacial and Holocene climate changes in the North Atlantic Ocean. Global Ecology and Biogeography 23(9): 957–967. http://hdl.handle.net/10255/dryad.61782 Abrupt climate change decadal–centennial time-scales deep sea deepwater circulation macroecology paleoecology species diversity temperature Article 2014 ftdryad https://doi.org/10.5061/dryad.53vs3 https://doi.org/10.5061/dryad.53vs3/1 https://doi.org/10.5061/dryad.53vs3/2 https://doi.org/10.5061/dryad.53vs3/3 https://doi.org/10.5061/dryad.53vs3/4 https://doi.org/10.5061/dryad.53vs3/5 https://doi.org/1 2020-01-01T15:07:24Z 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 sudden ecosystem responses to human-induced changes to climate and ocean circulation in this century. Article in Journal/Newspaper North Atlantic Dryad Digital Repository (Duke University) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Abrupt climate change decadal–centennial time-scales deep sea deepwater circulation macroecology paleoecology species diversity temperature |
spellingShingle |
Abrupt climate change decadal–centennial time-scales deep sea deepwater circulation macroecology paleoecology species diversity temperature 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 |
Abrupt climate change decadal–centennial time-scales deep sea deepwater circulation macroecology paleoecology species diversity temperature |
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 sudden ecosystem responses to human-induced changes to climate and ocean circulation in this century. |
format |
Article in Journal/Newspaper |
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://hdl.handle.net/10255/dryad.61782 https://doi.org/10.5061/dryad.53vs3 |
op_coverage |
North Atlantic Ocean Holocene Quaternary Pleistocene |
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 doi:10.5061/dryad.53vs3 Yasuhara M, Okahashi H, Cronin TM, Rasmussen TL, Hunt G (2014) Response of deep-sea biodiversity to abrupt deglacial and Holocene climate changes in the North Atlantic Ocean. Global Ecology and Biogeography 23(9): 957–967. http://hdl.handle.net/10255/dryad.61782 |
op_doi |
https://doi.org/10.5061/dryad.53vs3 https://doi.org/10.5061/dryad.53vs3/1 https://doi.org/10.5061/dryad.53vs3/2 https://doi.org/10.5061/dryad.53vs3/3 https://doi.org/10.5061/dryad.53vs3/4 https://doi.org/10.5061/dryad.53vs3/5 https://doi.org/1 |
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1766122016469942272 |