Reorganization of Southern Ocean plankton ecosystem at the onset of Antarctic glaciation

Houben, Alexander J. P., Bijl, Peter K., Pross, Jorg, Bohaty, Steven M., Passchier, Sandra, Stickely, Catherine E., Rhol, Ursula, Sugisaki, Saiko, Tauxe, Lisa, van der Fliert, Tina, Olney, Matthew, Sangiorgi, Francesca, Slujis, Appy, Escutia, Carlota, Brinkhuis, Henk, Expedition 318 Scientists and Welsh, Kevin (2013) Reorganization of Southern Ocean plankton ecosystem at the onset of Antarctic glaciation. Science, 340 6130: 341-344. doi:10.1126/science.1223646


Author Houben, Alexander J. P.
Bijl, Peter K.
Pross, Jorg
Bohaty, Steven M.
Passchier, Sandra
Stickely, Catherine E.
Rhol, Ursula
Sugisaki, Saiko
Tauxe, Lisa
van der Fliert, Tina
Olney, Matthew
Sangiorgi, Francesca
Slujis, Appy
Escutia, Carlota
Brinkhuis, Henk
Expedition 318 Scientists
Welsh, Kevin
Title Reorganization of Southern Ocean plankton ecosystem at the onset of Antarctic glaciation
Journal name Science   Check publisher's open access policy
ISSN 1095-9203
0036-8075
Publication date 2013-04-19
Year available 2013
Sub-type Article (original research)
DOI 10.1126/science.1223646
Volume 340
Issue 6130
Start page 341
End page 344
Total pages 4
Place of publication Washington, United States
Publisher American Association for the Advancement of Science
Collection year 2014
Language eng
Abstract 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.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Authors prepress title: "Reorganisation of Southern Ocean plankton ecosystem at the onset of Antarctic glaciation".

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Earth Sciences Papers
 
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Created: Wed, 18 Dec 2013, 20:07:04 EST by Ashleigh Paroz on behalf of School of Earth Sciences