This database has been generated by standardising and integrating large global databases of alien species occurrences using the SInAS workflow version 1.3.9. The SInAS workflow has been published and has been repeatedly updated: Seebens, H., Clarke, D.A., Groom, Q., Wilson, J.R.U., García-Berthou, E., Kühn, I., Roigé, M., Pagad, S., Essl, F., Vicente, J., Winter, M. & McGeoch, M. (2020) A workflow for standardising and integrating alien species distribution data. NeoBiota, 59, 39–59. DOI: 10.5281/zenodo.5562840. The SInAS database 2.4.2 is built upon seven freely available global database of alien species occurrences: - Global Naturalized Alien Floras (GloNAF) (van Kleunen, M., Pyšek, P., Dawson, W., Essl, F., Kreft, H., Pergl, J., Weigelt, P., Stein, A., Dullinger, S., König, C., Lenzner, B., Maurel, N., Moser, D., Seebens, H., Kartesz, J., Nishino, M., Aleksanyan, A., Ansong, M., Antonova, L.A., Barcelona, J.F., Breckle, S.W., Brundu, G., Cabezas, F.J., Cárdenas, D., Cárdenas‐Toro, J., Castaño, N., Chacón, E., Chatelain, C., Conn, B., Sá Dechoum, M., Dufour‐Dror, J., Ebel, A.L., Figueiredo, E., Fragman‐Sapir, O., Fuentes, N., Groom, Q.J., Henderson, L., Inderjit, Jogan, N., Krestov, P., Kupriyanov, A., Masciadri, S., Meerman, J., Morozova, O., Nickrent, D., Nowak, A., Patzelt, A., Pelser, P.B., Shu, W., Thomas, J., Uludag, A., Velayos, M., Verkhosina, A., Villaseñor, J.L., Weber, E., Wieringa, J.J., Yazlık, A., Zeddam, A., Zykova, E. & Winter, M. (2019) The Global Naturalized Alien Flora (GloNAF) database. Ecology, 100, e02542.), - Global Avian Invasion Atlas (GAVIA) (Dyer, E.E., Redding, D.W. & Blackburn, T.M. (2017) The global avian invasions atlas, a database of alien bird distributions worldwide. Scientific Data, 4, 170041.), - Distribution of Alien Mammals database (DAMA) (Biancolini, D., Vascellari, V., Melone, B., Blackburn, T.M., Cassey, P., Scrivens, S.L. & Rondinini, C. (2021) DAMA: the global Distribution of Alien Mammals database. Ecology.) - a database of alien amphibians and reptiles (Capinha, C., Seebens, H., Cassey, P., García-Díaz, P., Lenzner, B., Mang, T., Moser, D., Pyšek, P., Rödder, D., Scalera, R., Winter, M., Dullinger, S. & Essl, F. (2017) Diversity, biogeography and the global flows of alien amphibians and reptiles. Diversity and Distributions, 23, 1313–1322.) - a database of marco fungi (Monteiro, M., Reino, L., Schertler, A., Essl, F., Figueira, R., Ferreira, M. & Capinha, C. (2020) A database of the global distribution of alien macrofungi. Biodiversity Data Journal, 8.) - First Records database (Seebens, H., Blackburn, T.M., Dyer, E.E., Genovesi, P., Hulme, P.E., Jeschke, J.M., Pagad, S., Pyšek, P., Winter, M., Arianoutsou, M., Bacher, S., Blasius, B., Brundu, G., Capinha, C., Celesti-Grapow, L., Dawson, W., Dullinger, S., Fuentes, N., Jäger, H., Kartesz, J., Kenis, M., Kreft, H., Kühn, I., Lenzner, B., Liebhold, A., Mosena, A., Moser, D., Nishino, M., Pearman, D., Pergl, J., Rabitsch, W., Rojas-Sandoval, J., Roques, A., Rorke, S., Rossinelli, S., Roy, H.E., Scalera, R., Schindler, S., Štajerová, K., Tokarska-Guzik, B., van Kleunen, M., Walker, K., Weigelt, P., Yamanaka, T. & Essl, F. (2017) No saturation in the accumulation of alien species worldwide. Nature Communications, 8, 14435.) - Global Register of Introduced and Invasive Species (GRIIS) (Pagad, S., Genovesi, P., Carnevali, L., Schigel, D. & McGeoch, M.A. (2018) Introducing the Global Register of Introduced and Invasive Species. Scientific Data, 5, 170202.)

Version 2.4.2: - Addition of Kosovo, which was missing - Distinction of South Sudan from Sudan - Erasure of Lesotho from the polygon of South Africa (otherwise, Lesotho got covered by South Africa if polygons were coloured