This is a database described in the data management report for chapter 4 of IPBES thematic assessment on invasive alien species and their control. Data were gathered on direct observations of impacts from published literature, including grey literature, in order to form a database on the evidence to which invasive alien species impact, negatively and positively, nature, nature's contributions to people and good quality of life for Chapter 4 of IPBES thematic assessment of invasive alien species and their control. The criteria for inclusion were a published direct evidence of an impact on native species, a change in ecosystem properties, nature's contributions to people and the extent to which humans were affected through changes in their constituents of well-being. Updates to version 3: 1) Assessor “EAM” has been replaced by “Ester Mostert”, 2) There were 50 Unique IDs that were paired. These are now differentiated by adding an a and b to the end of these to make them truly unique, 3) Removed 40 duplicates 4) RowID were re-numbered to reflect the unique number of rows