Department of Environmental and Biological Sciences,
University of Eastern Finland, PL 1627
FI-70211 Kuopio, Finland
jukka.pumpanen@uef.fi
Dr. Kajar Köster
Department of Forest Sciences,
PO Box 27 (Latokartanonkaari 7)
00014 University of Helsinki, Finland
kajar.koster@helsinki.fi
Dr. Frank Berninger
Department of Forest Sciences,
PO Box 27 (Latokartanonkaari 7)
00014 University of Helsinki, Finland
frank.berninger@helsinki.fi