BIOGEOGRAPHY OF CODENET SPECIES FROM SEDIMENT ASSEMBLAGES
Patrizia Ziveri(1), Annelies Kleijne(1), Karl-Heinz Baumann(2), Jšrg Bollmann(3), Jeremy Young(4), Markus Geissen(4), Jacques Giraudeau(5), & others
1 Earth Science Faculty, Vrije Universiteit Amsterdam, Amsterdam
2 Earth Science Dept., University Bremen, Bremen, Germany
3 Geologisches Institut, ETH-Zentrum, 8092 Zürich, Switzerland
4 Palaeontology Dept. The Natural History Museum, Cromwell Road, London, SW7 5BD
5 CNRS Univ. Bordeaux, Avenue des Facultés, 33405 TALENCE
Meaningful integration of palaeobiology into study, and especially modelling, of global change requires detailed understanding of the ecology of key organisms. As part of the CODENET (Coccolithophorid evolutionary biodiversity and ecology network) project we are investigating the prime constraints on coccolithophorid ecology and the ecological significance of biodiversity within the coccolithophorids. Our study provides a multiple approach analysis of the ecology of six key coccolithophorid species, including comparison and synthesis of information from physiological studies, biogeography, seasonal succession, and palaeontological response to global change. This is intended both to maximise the palaeoeological information retrieval from these species and to enhance understanding of the ecology of the coccolithophorids as a group. This will allow critical interpretation of the coccolith record and modelling of the role of coccolithophorids within the global carbon cycle.
We will present here a revision for the Atlantic Ocean of the available data on the six CODENET taxa based on data from and surface sediment samples, plankton samples and sediment traps.
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