Comparison of the presence of selected IAS of concern in the previous (2015-2018) and current (2019-2024) reporting periods

This map displays a comparison of the selected Invasive Alien Species (IAS) reported presence in grid cells between the previous and the current reporting cycles.

Units

Gridcell occupied by species

Additional information

Figure is showing comparison of distribution for following species: Egyptian goose (Alopochen aegyptiacus), northern raccoon (Procyon lotor); common milkweed (Asclepias syriacus); Nuttall's waterweed (Elodea nuttallii); Chinese mitten crab (Eriocheir sinensis); Asian hornet (Vespa velutina nigrithorax).

Methodology

The map is not a single comparison, but a three-category comparison of the species distribution between the two reporting periods: grid cells reported in both periods, grid cells reported only in the recent period (2019-2024), and grid cells reported only in the previous period.

Recent progress in managing invasive alien species in the EU

Comparison of the presence of selected IAS of concern in the previous (2015-2018) and current (2019-2024) reporting periods

Related content

References and footnotes