Occurrence Metrics for the Birds Directive Annex I Species in EU27: A 10 km prototype using GBIF occurrence cubes

This dataset includes GBIF occurrences of 193 species listed in Annex I of the Birds Directive, subject to special conservation measures. The scientific names, updated by the EEA, were cross-referenced with the GBIF backbone taxonomy, yielding accepted GBIF scientific names and corresponding acceptedUsageKeys for these species. Using these names and the EEA spatial grid at a 10 km resolution, we generated the occurrence cube via the GBIF API in R (DOI: https://doi.org/10.15468/dl.43ydtq). A total of 168 species met the criteria for inclusion in the cube. The following preliminary occurrence metrics were calculated for each grid cell in the cube:
• Total number of occurrences
• Earliest month with occurrences across all years
• Latest month with occurrences across all years
• Month with the highest total number of occurrences across all years
• Month with the second-highest total number of occurrences across all years
• Month with the third-highest total number of occurrences across all years.

This dataset was developed by the Biodiversity Building Blocks for Policy (B3) project and was funded by the European Union’s Horizon Europe Research and Innovation Programme (ID No 101059592).