1. Anna Šestáková, The Western Slovakian Museum, Múzejné nám. 3, SK-91809 Trnava, Slovakia; E-mail:
2. Ľudmila Černecká, Institute of Forest Ecology, Slovak Academy of Sciences, Ľudovíta Štúra 2, SK-96053 Zvolen, Slovakia; E-mail:
3. Maria Naumova, Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Tsar Osvoboditel blvd., 1000 Sofia, Bulgaria; E-mail:
4. Pavol Purgat, Institute of Landcape Ecology, Nitra Branch, Slovak Academy of Sciences, Akademická 2, SK-94901 Nitra, Slovakia; E-mail:
5. Éva Szita, Plant Protection Institute, Centre for Agricultural Research, Herman Ottó u. 15, H-1022, Budapest, Hungary; E-mail:
6. Peter Gajdoš, Institute of Landcape Ecology, Nitra Branch, Slovak Academy of Sciences, Akademická 2, SK-94901 Nitra, Slovakia; E-mail: