Imperial College London
Alternate

Professor Andy Purvis

Faculty of Natural Sciences, Department of Life Sciences (Silwood Park)

Research Investigator
 
 
 
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Contact

 

+44 (0)20 7942 5686a.purvis Website

 
 
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Location

 

Silwood ParkSilwood Park

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Summary

 

Publications

Citation

BibTex format

@article{Fenton:2016:10.1098/rstb.2015.0224,
author = {Fenton, I and Perason, PN and Dunkley, Jones T and Farnsworth, A and Lunt, D and Markwick, P and Purvis, A},
doi = {10.1098/rstb.2015.0224},
journal = {Philosophical Transactions of the Royal Society B: Biological Sciences},
title = {The impact of Cenozoic cooling on assemblage diversity in planktonic foraminifera},
url = {http://dx.doi.org/10.1098/rstb.2015.0224},
volume = {371},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The Cenozoic planktonic foraminifera (PF) (calcareous zooplankton) have arguably the most detailed fossil record of any group. The quality of this record allows models of environmental controls on macroecology, developed for Recent assemblages, to be tested on intervals with profoundly different climatic conditions. These analyses shed light on the role of long-term global cooling in establishing the modern latitudinal diversity gradient (LDG)—one of the most powerful generalizations in biogeography and macroecology. Here, we test the transferability of environment-diversity models developed for modern PF assemblages to the Eocene epoch (approx. 56–34 Ma), a time of pronounced global warmth. Environmental variables from global climate models are combined with Recent environment–diversity models to predict Eocene richness gradients, which are then compared with observed patterns. The results indicate the modern LDG—lower richness towards the poles—developed through the Eocene. Three possible causes are suggested for the mismatch between statistical model predictions and data in the Early Eocene: the environmental estimates are inaccurate, the statistical model misses a relevant variable, or the intercorrelations among facets of diversity—e.g. richness, evenness, functional diversity—have changed over geological time. By the Late Eocene, environment–diversity relationships were much more similar to those found today.
AU  - Fenton,I
AU  - Perason,PN
AU  - Dunkley,Jones T
AU  - Farnsworth,A
AU  - Lunt,D
AU  - Markwick,P
AU  - Purvis,A
DO  - 10.1098/rstb.2015.0224
PY  - 2016///
SN  - 1471-2970
TI  - The impact of Cenozoic cooling on assemblage diversity in planktonic foraminifera
T2  - Philosophical Transactions of the Royal Society B: Biological Sciences
UR  - http://dx.doi.org/10.1098/rstb.2015.0224
UR  - http://hdl.handle.net/10044/1/29214
VL  - 371
ER  -
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