Frequency distribution of the observers per number of records in the datasets of INBO and Natuurpunt.

 
 
  Part of: Maes D, Vanreusel W, Herremans M, Vantieghem P, Brosens D, Gielen K, Beck O, Van Dyck H, Desmet P, Vlinderwerkgroep Natuurpunt (2016) A database on the distribution of butterflies (Lepidoptera) in northern Belgium (Flanders and the Brussels Capital Region). ZooKeys 585: 143-156. https://doi.org/10.3897/zookeys.585.8019