Contrasting environmental and regional effects on global pteridophyte and seed plant diversity

H. Kreft ([email protected]), Biodiversity, Macroecology and Conservation Biogeography Group, Fac. of Forest Sciences and Forest Ecology, Univ. of Göttingen, Büsgenweg 2, DE-37077 Göttingen, Germany, and Nees Inst. for Biodiversity of Plants, Univ. of Bonn, Meckenheimer Allee 170, DE-53115 Bonn, Germany, and Div. of Biological Sciences, Univ. of California San Diego, 9500 Gilman Drive MC 0116, La Jolla, CA 92093-0116, USA. W. Jetz, Div. of Biological Sciences, Univ. of California San Diego, 9500 Gilman Drive MC 0116, La Jolla, CA 92093-0116, USA, and Dept of Ecology and Evolutionary Biology, Yale Univ., 165 Prospect Street, New Haven, CT 065208106, USA. J. Mutke and W. Barthlott, Nees Inst. for Biodiversity of Plants, Univ. of Bonn, Meckenheimer Allee 170, DE-53115 Bonn, Germany.