The average occurrence of S. inaequidens, calculated as the proportion of samples within each transect where S. inaequidens was found. BE = Belgium; FR = France, NL = the Netherlands.

 
 
  Part of: Van De Walle R, Massol F, Vandegehuchte ML, Bonte D (2022) The distribution and impact of an invasive plant species (Senecio inaequidens) on a dune building engineer (Calamagrostis arenaria). NeoBiota 72: 1-23. https://doi.org/10.3897/neobiota.72.78511