Shapefiles representing regions in alien species databases. 1- Regions_shapefile_amphibians_reptiles - created based on the regional information available in "Capinha, C. et al. Diversity, biogeography and the global flows of alien amphibians and reptiles. Divers Distrib 23, 1313–1322 (2017)." 2- Regions_shapefile_ants_mammals - provided by "Guénard, B., Weiser, M. D., Gómez, K., Narula, N. & Economo, E. P. The Global Ant Biodiversity Informatics (GABI) database: synthesizing data on the geographic distribution of ant species (Hymenoptera: Formicidae). Myrmecological News 24, 83–89 (2017)." 3- Regions_shapefile_birds - created based on the regional information available in "Dyer, E. E., Redding, D. W. & Blackburn, T. M. The global avian invasions atlas, a database of alien bird distributions worldwide. Sci Data 4, 170041 (2017)." 4- Regions_shapefile_freshwater - provided by "Tedesco, P. A. et al. A global database on freshwater fish species occurrence in drainage basins. Sci Data 4, 170141 (2017)." 5- Regions_shapefile_macrofungi - created based on the regional information available in "Monteiro, M. et al. A database of the global distribution of alien macrofungi. Biodiversity Data Journal 8, e51459 (2020)." 6- Regions_shapefile_plants - provided by "Kleunen, M. et al. The Global Naturalised Alien Flora (GloNAF) database. Ecology 100, (2019)." 7- Regions_shapefile_spiders - created based on the regional information shared by co-author Wolfgang Nentwig