Graphical representation of the structure of the SPARSE database, with the four central tables (indicated by numbers). Fields for which data must be entered (i.e. required fields) are marked by bold black letters. Fields that are optional are marked by regular grey letters.

  
  Part of: Tschernosterová K, Trávníčková E, Grattarola F, Rosse C, Keil P (2023) SPARSE 1.0: a template for databases of species inventories, with an open example of Czech birds. Biodiversity Data Journal 11: e108731. https://doi.org/10.3897/BDJ.11.e108731