1. Paleoecological
Environmental Assessment and Research Laboratory (PEARL), Department
of Biology, Queen’s University, Kingston, Ontario K7L 3N6, Canada
2. Department
of Ecology and Environmental Science, Umeå University, 90187 Umeå, Sweden
3. Dorset Environmental Science Centre, Ontario Ministry of the Environment and Climate Change, Dorset, Ontario P0A 1E0, Canada
4. Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, LA14AP, U.K.
5. Environmental
Change Research Centre, University College London, London, WC1E 6BT, U.K.
6. Environmental
Change Research Unit (ECRU), Department of Environmental Sciences, University of Helsinki, P.O. Box 65, 00014, Helsinki, Finland