1. Institute of Nature Conservation of the Polish Academy of Sciences (IOP PAN), Adama Mickiewicza 33, 31-120 Kraków, Poland
2. Estación Biológica de Doñana CSIC (EBD-CSIC), Americo Vespucio 26, 41092 Sevilla, Spain
3. German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Puschstraße 4, 04103 Leipzig, Germany
4. Institute of Biology, Martin Luther University Halle-Wittenberg, Am Kirchtor 1, 06108 Halle (Saale), Germany