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Figure
Methodology:
National inventories of NIS were revised and updated with published data from biodiversity and hot-spot campaigns, academic surveys, and citizen science observed until December 2020 (reported until June 2022). Revised list was validated with the contribution of national experts.
Microalgae and parasite/pathogen species identified are excluded.
Cryptogenic, questionable and range-expanding species identified are also excluded from all analysis.
Native, partly native species identified are excluded at EU level but included in sub-regional assessments for subregions where they have not been identifies as native.
Units:
Number of new NIS and cumulative number of new NIS
Rights:
Owners:
Processors:
Figure type:
• NIS registered in more than one subregion are recorded in each; subregional assessments thus do not add up to regional or pan-European assessments as these consider each species only once (see Fig 1).
• Circles on the map show the number of new NIS introduced between 1970-2020 by subregion.
• The latest assessment cycle consists of only 3 years (2017-2020).
For references, please go to https://www.eea.europa.eu/data-and-maps/figures/number-and-cumulative-number-of-1 or scan the QR code.
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