1. Department of Systematic Zoology Faculty of Biology Adam Mickiewicz University Umultowska 89 61‐614 Poznań Poland
2. Department of Biology Wilkes University Wilkes‐Barre Pennsylvania 18766 USA
3. Forest Research Group INDEHESA University of Extremadura Calle Virgen Puerto, 2 10600 Plasencia Spain
4. DITEG Research Group University of Castilla‐La Mancha Calle Altagracia, 50, 13003 Ciudad Real Toledo Spain