Tomáš Bucha, Forest Research Institute, National Forest Centre (NFC), T.G. Masaryka 22, 960 92 Zvolen, Slovak Republic; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Ján Feranec, Institute of Geography of the Slovak Academy of Science (IG SAS), Štefánikova 49, 814 73 Bratislava, Slovak Republic, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.