1. Department of Biogeography and Palaeoecology, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, Poland
2. Centre for the Study of Demographic and Economic Structures in Preindustrial Central and Eastern Europe, University of Bialystok, Poland
3. Laboratory of Wetland Ecology and Monitoring, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, Poland
4. Institute of Plant Sciences and Oeschger Centre for Climate Change Research, University of Bern, Switzerland