Distribution V. velutina outposts (dark gray) and random points (light grey) according to the different classes of distance to motorways (km). The estimated linear function found up to 17 km is “No. nests = - 0.6103 * (Distance to motorways) + 10.61”.

 
 
  Part of: Verdasca MJ, Rebelo H, Carvalheiro LG, Rebelo R (2021) Invasive hornets on the road: motorway-driven dispersal must be considered in management plans of Vespa velutina. NeoBiota 69: 177-198. https://doi.org/10.3897/neobiota.69.71352