**Acknowledgements**

We would like to thank all our colleagues and students from the Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic Brno and Masaryk University in Brno, who participated in both field and laboratory research. We are especially grateful to Miroslav Kovařík for field assistance in the Moravian Karst. We are grateful to Kevin Roche for his cor‐ rection and improvement of the English text. The authors received support from the Grant Agency of the Czech Republic (Grant no. 502/17‐20286S).
