1. J. F. Blumenbach Inst. of Zoology and Anthropology; Univ. of Göttingen; Untere Karspüle 2 DE-37073 Göttingen Germany
2. Dept of Agricultural Sciences; Univ. of Helsinki; Helsinki Finland
3. German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig; Leipzig Germany
4. Inst. of Biodiversity, Friedrich Schiller Univ. Jena; Jena Germany
5. Mountain Agriculture Research Unit; Inst. of Ecology, Univ. of Innsbruck; Innsbruck Austria
6. Centre of Biodiversity and Sustainable Land Use; Univ. of Göttingen; Göttingen Germany