The total number of source titles (e.g. journals, N = 1,218) that have published at least one publication in invasion science literature (N = 27,234) between 1980 and 2020 that were also registered in Clarivate Analytics Web of Science Core Collections (see methods for screening criteria).

  Part of: Campbell SE, Simberloff D (2022) ´╗┐Forty years of invasion research: more papers, more collaboration...bigger impact? NeoBiota 75: 57-77.