Numbers of species and individuals recorded between 1997 and 2017 within a radius of 500, 1000, and 1500 m from the centre of the respective flower strip (compare Fig. 1). For details of how past recordings were made see Materials and Methods.

  Part of: Hofmann MM, Renner SS (2020) One-year-old flower strips already support a quarter of a city’s bee species. Journal of Hymenoptera Research 75: 87-95.