Themes covered by the papers. SPI: strategies used in the invasion process; CIE: characterisation of the invaded environment; IPD: impacts on plant diversity; PSD: population structure and/or dynamics; ETS: ethnobiological studies; LRE: literature review; LIS: list of exotic/invasive species; SOA: sociability assessment; CIS: control of invasive species; MUS: mutualistic studies; ALN: assessment of the level of naturalisation; ENM: ecological niche modelling