Acknowledgements
This paper is a result of the project, “Biodiversity and associated ecosystem services in small-vs. large-scale agriculture” (DFG BA 4438/2-1). We thank Bettina Donkó, Rita Földesi, Marian Mendoza García, Costanza Geppert, Jacob Rosenthal, Carolina Steffen and Sinja Zieger for assistance with the field work, Zsolt Józan for identification of bees and Jacqueline Loos for discussion on this study. PB was supported by the Hungarian National Research, Development and Innovation Office (NKFIH KKP 133839).