M.B.A. thanks T. Lathi and R. Lampinen for providing a digital version of Atlas Florae Europaeae. We thank M. Erhard (Potsdam-Institute for Climate Impact Research, Potsdam, Germany) for repackaging and aggregating original climate data into the Atlas Florae Europaeae grid and M. Metzger for his environmental classification of Europe. This research was funded by the integrated projects of the European Commission's FP5 Advanced Terrestrial Ecosystem Analysis and Modeling (EVK2-CT-2000-00075) and FP6 Assessing Large-Scale Environmental Risks with Tested Methods (GOCE-CT-2003-506675).
Author contributions: W.T. and S.L. designed research; W.T. performed research; W.T., S.L., M.B.A., M.T.S., and I.C.P. contributed new reagents/analytic tools; W.T. and M.B.A. analyzed data; and W.T., S.L., M.B.A., M.T.S., and I.C.P. wrote the paper.
This paper was submitted directly (Track II) to the PNAS office.
Abbreviation: IUCN, International Union for Conservation of Nature and Natural Resources.
‡‡Mitchell, T. D., Carter, T. R., Jones, P. D., Hulme, M. & New, M. (2004) A Comprehensive Set of High-Resolution Grids of Monthly Climate for Europe and the Globe: The Observed Record (1901-2000) and 16 Scenarios (2001-2100) (Tyndall Centre for Climate Change Res., Norwich, U.K.), Working Paper 55.