Darwin Center programs and projects
1073: Subproject 3, the biogeochemical component

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Darwin Center publications
Speelman, E.N., van Kempen, M.M.L., Barke, J., Brinkhuis, H., Reichart, G.J., Smolders, A.J.P., Roelofs, J.G.M., Sangiorgi, F., de Leeuw, J.W., Lotter, A.F., Sinninghe Damsté, J.S. (2009). The Eocene Arctic Azolla bloom: environmental conditions, productivity and carbon drawdown . Geobiology7 (2): 155-170.
Darwin Center authors: Barke J., Brinkhuis H., van Kempen M. M. L., Lotter A. F., Reichart G. J., Roelofs J. G. M., Sinninghe Damsté J. S., Speelman E. N.

Speelman, E.N., Reichart, G.-J., de Leeuw, J.W., Rijpstra, W.I.C., Sinninghe Damsté, J.S. (2009). Biomarker lipids of the freshwater fern Azolla and its fossil counterpart from the Eocene Arctic Ocean . Organic Geochemistry40 (5): 628-637.
Darwin Center authors: Reichart G. J., Sinninghe Damsté J. S., Speelman E. N.

Bauersachs, T., Speelman, E.N., Hopmans, E.C., Reichart, G.J., Schouten, S., Sinninghe Damsté, J.S. (2010). Fossilized glycolipids reveal past oceanic N2 fixation by heterocystous cyanobacteria. Proceedings of the National Academy of Sciences USA (PNAS)107: 19190-19194.
Darwin Center authors: Bauersachs T., Hopmans E. C., Reichart G. J., Schouten S., Sinninghe Damsté J. S., Speelman E. N.

Eveline N. Speelman, Jacob O. Sewall, David Noone, Matthew Huber, Anna von der Heydt, Jaap Sinninghe Damsté, Gert-Jan Reichart (2010). Modeling the influence of a reduced equator-to-pole sea surface temperature gradient on the distribution of water isotopes in the Early/Middle Eocene. Earth and Planetary Science Letters298: 57-65-
Darwin Center authors: Reichart G. J., Sinninghe Damsté J. S., Speelman E. N.

Eveline Speelman (2010). Reconstruction of the Arctic Ocean environment during the Eocene Azolla interval using geochemical proxies and climate modeling.
Darwin Center authors: Speelman E. N.

Nierop, K.G.J., Speelman, E.N., de Leeuw, J.W., Reichart, G.-J. (2011). The omnipresent water fern Azolla caroliniana does not contain lignin . Organic GeochemistryVolume 42, Issue 7: 846-850.
Darwin Center authors: Reichart G. J., Speelman E. N.

Judith Barke, Johan van der Burgh, Johanna H.A. van Konijnenburg-van Cittert, Margaret E. Collinson, Martin A. Pearce, Jonathan Bujak, Claus Heilmann-Clausen, Eveline N. Speelman, Monique M.L. van Kempen, Gert-Jan Reichart, André F. Lotter, Henk Brinkhuis (2012). Coeval Eocene blooms of the freshwater fern Azolla in and around Arctic and Nordic seas. Palaeogeography, Palaeoclimatology, Palaeoecology337-338: 108-119.
Darwin Center authors: Barke J., Brinkhuis H., van Kempen M. M. L., Lotter A. F., Reichart G. J., Speelman E. N.

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