Acknowledgements
Fieldwork was conducted by Axel Müller, Gerben van Bergeijk, Dick Velthuizen and Maartje de Boer. We thank Annemarie Philip for preparing the pollen samples. Albertine Ellis kindly helped with the identification of the Salvinia remains and Zaire Gonzalez assisted with the use of the software and the construction of the diagram. All pictures were taken by Jan van Arkel. Dmitri Mauquoy kindly edited the English text. We thank reviewers J.A.A. Bos and K.-E. Behre for their valuable suggestions.
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Felix Weijdema
Institute for Biodiversity and Ecosystem Dynamics
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Otto Brinkkemper
Rijksdienst voor het Cultureel Erfgoed
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Hans Peeters
Rijksdienst voor het Cultureel Erfgoed
Groningen Institute of Archaeology
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Bas van Geel
Institute for Biodiversity and Ecosystem Dynamics
.
Review data:
Submission 25/5/2011
Revision 2/6/2011
2nd submission 15/8/2011