Supplementary material 1 from: Ruete A (2015) Displaying bias in sampling effort of data accessed from biodiversity databases using ignorance maps. Biodiversity Data Journal 3: e5361. https://doi.org/10.3897/BDJ.3.e5361

The algorithms are designed to handle number of observations and number of species summarized per grid cells. Here I provide the. CSV files as downloaded from www.analysisportal.se. This is the format one is expected to get the summarized data for a biodiversity database. I also include data on the occurrence of two species (a common and a rare) for each reference taxonomic group.