Special Protection Areas (SPAs) in Sweden divided by biogeographical region (left map) and larger roads and railways with predicted effect zone (REZ; right map).

 
 
  Part of: Helldin JO (2019) Predicted impacts of transport infrastructure and traffic on bird conservation in Swedish Special Protection Areas. Nature Conservation 36: 1-16. https://doi.org/10.3897/natureconservation.36.31826