Abiotic forcing of plankton evolution in the Cenozoic


Schmidt, D.N., Thierstein, H.R., Bollmann, J. and Schiebel, R. (2004) Abiotic forcing of plankton evolution in the Cenozoic. Science, 303, (5655), 207-210. (doi:10.1126/science.1090592).

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Original Publication URL: http://dx.doi.org/10.1126/science.1090592

Description/Abstract

We characterize the evolutionary radiation of planktic foraminifera by the test size distributions of entire assemblages in more than 500 Cenozoic marine sediment samples, including more than 1 million tests. Calibration of Holocene size patterns with environmental parameters and comparisons with Cenozoic paleoproxy data show a consistently positive correlation between test size and surface-water stratification intensity. We infer that the observed macroevolutionary increase in test size of planktic foraminifera through the Cenozoic was an adaptive response to intensifying surface-water stratification in low latitudes, which was driven by polar cooling.

Item Type: Article
ISSNs: 0036-8075 (print)
Related URLs:
Subjects: Q Science > QH Natural history
G Geography. Anthropology. Recreation > GC Oceanography
Divisions: University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
ePrint ID: 35592
Date Deposited: 22 May 2006
Last Modified: 27 Mar 2014 18:22
URI: http://eprints.soton.ac.uk/id/eprint/35592

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