1. Institute of Parasitology, Biology Centre, Czech Academy of Sciences , Branišovská 31 , 370 05 České Budějovice , Czech Republic
2. Česká krajina o.p.s., Šultysova 170 , 284 01 Kutná Hora , Czech Republic
3. European Wildlife, Šultysova 170 , 284 01 Kutná Hora , Czech Republic
4. Faculty of Science , University of South Bohemia, Branišovská 1760 , 370 05 České Budějovice , Czech Republic
5. Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8 , 603 65 Brno , Czech Republic
6. Faculty of Environmental Sciences , Czech University of Life Sciences Prague, Kamýcká 1176 , Suchdol, 165 21 Prague , Czech Republic