The list has been created from assertions made by more than 1,400 authoritative sources (which are included at the record level). The sources include peer-reviewed journal articles, books, brochures, circulars, databases, environmental assessments, technical reports, graduate theses, and websites.
Revision 3.0 was completed by Annie Simpson on September 15, 2020. To review the changes that were made, see “VersHistory-Comprehensive_Non-Native_Species_ListV3-0.txt” in the attached files section.