Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation
The circum-Antarctic Southern Ocean is an important region for global marine food webs and carbon cycling because of sea-ice formation and its unique plankton ecosystem. However, the mechanisms underlying the installation of this distinct ecosystem and the geological timing of its development remain...
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Language: | English |
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ftsouthampton:oai:eprints.soton.ac.uk:353311 2023-08-27T04:04:27+02:00 Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation Houben, A.J.P. Bijl, P.K. Pross, J. Bohaty, S.M. Passchier, S. Stickley, C.E. Rohl, U. Sugisaki, S. Tauxe, L. van de Flierdt, T. Olney, M. Sangiorgi, F. Sluijs, A. Escutia, C. Brinkhuis, H. 2013-04-19 https://eprints.soton.ac.uk/353311/ English eng Houben, A.J.P., Bijl, P.K., Pross, J., Bohaty, S.M., Passchier, S., Stickley, C.E., Rohl, U., Sugisaki, S., Tauxe, L., van de Flierdt, T., Olney, M., Sangiorgi, F., Sluijs, A., Escutia, C. and Brinkhuis, H. (2013) Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation. Science, 340 (6130), 341-344. (doi:10.1126/science.1223646 <http://dx.doi.org/10.1126/science.1223646>). Article PeerReviewed 2013 ftsouthampton https://doi.org/10.1126/science.1223646 2023-08-03T22:20:16Z The circum-Antarctic Southern Ocean is an important region for global marine food webs and carbon cycling because of sea-ice formation and its unique plankton ecosystem. However, the mechanisms underlying the installation of this distinct ecosystem and the geological timing of its development remain unknown. Here, we show, on the basis of fossil marine dinoflagellate cyst records, that a major restructuring of the Southern Ocean plankton ecosystem occurred abruptly and concomitant with the first major Antarctic glaciation in the earliest Oligocene (~33.6 million years ago). This turnover marks a regime shift in zooplankton-phytoplankton interactions and community structure, which indicates the appearance of eutrophic and seasonally productive environments on the Antarctic margin. We conclude that earliest Oligocene cooling, ice-sheet expansion, and subsequent sea-ice formation were important drivers of biotic evolution in the Southern Ocean. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Sea ice Southern Ocean University of Southampton: e-Prints Soton Antarctic Southern Ocean The Antarctic Science 340 6130 341 344 |
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Open Polar |
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University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
The circum-Antarctic Southern Ocean is an important region for global marine food webs and carbon cycling because of sea-ice formation and its unique plankton ecosystem. However, the mechanisms underlying the installation of this distinct ecosystem and the geological timing of its development remain unknown. Here, we show, on the basis of fossil marine dinoflagellate cyst records, that a major restructuring of the Southern Ocean plankton ecosystem occurred abruptly and concomitant with the first major Antarctic glaciation in the earliest Oligocene (~33.6 million years ago). This turnover marks a regime shift in zooplankton-phytoplankton interactions and community structure, which indicates the appearance of eutrophic and seasonally productive environments on the Antarctic margin. We conclude that earliest Oligocene cooling, ice-sheet expansion, and subsequent sea-ice formation were important drivers of biotic evolution in the Southern Ocean. |
format |
Article in Journal/Newspaper |
author |
Houben, A.J.P. Bijl, P.K. Pross, J. Bohaty, S.M. Passchier, S. Stickley, C.E. Rohl, U. Sugisaki, S. Tauxe, L. van de Flierdt, T. Olney, M. Sangiorgi, F. Sluijs, A. Escutia, C. Brinkhuis, H. |
spellingShingle |
Houben, A.J.P. Bijl, P.K. Pross, J. Bohaty, S.M. Passchier, S. Stickley, C.E. Rohl, U. Sugisaki, S. Tauxe, L. van de Flierdt, T. Olney, M. Sangiorgi, F. Sluijs, A. Escutia, C. Brinkhuis, H. Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation |
author_facet |
Houben, A.J.P. Bijl, P.K. Pross, J. Bohaty, S.M. Passchier, S. Stickley, C.E. Rohl, U. Sugisaki, S. Tauxe, L. van de Flierdt, T. Olney, M. Sangiorgi, F. Sluijs, A. Escutia, C. Brinkhuis, H. |
author_sort |
Houben, A.J.P. |
title |
Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation |
title_short |
Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation |
title_full |
Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation |
title_fullStr |
Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation |
title_full_unstemmed |
Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation |
title_sort |
reorganization of southern ocean plankton ecosystem at the onset of antarctic glaciation |
publishDate |
2013 |
url |
https://eprints.soton.ac.uk/353311/ |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Ice Sheet Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Ice Sheet Sea ice Southern Ocean |
op_relation |
Houben, A.J.P., Bijl, P.K., Pross, J., Bohaty, S.M., Passchier, S., Stickley, C.E., Rohl, U., Sugisaki, S., Tauxe, L., van de Flierdt, T., Olney, M., Sangiorgi, F., Sluijs, A., Escutia, C. and Brinkhuis, H. (2013) Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation. Science, 340 (6130), 341-344. (doi:10.1126/science.1223646 <http://dx.doi.org/10.1126/science.1223646>). |
op_doi |
https://doi.org/10.1126/science.1223646 |
container_title |
Science |
container_volume |
340 |
container_issue |
6130 |
container_start_page |
341 |
op_container_end_page |
344 |
_version_ |
1775351477509816320 |