Landscape/urbanistic zonation of the study area in Serbia (18×11 km), within Belgrade proper (light blue outline; sections separated by the red dotted-line): BUC – Balkan Urban Core; BMP – Balkan Mixed Periphery; PUC – Pannonian Urban Core; PSU – Pannonian Semi-Urban; PPU – Pannonian Peri-Urban.

 
 
  Part of: Bila Dubaić J, Plećaš M, Raičević J, Lanner J, Ćetković A (2022) Early-phase colonisation by introduced sculptured resin bee (Hymenoptera, Megachilidae, Megachile sculpturalis) revealed by local floral resource variability. NeoBiota 73: 57-85. https://doi.org/10.3897/neobiota.73.80343