Invasive alien species pose a growing threat to biodiversity and ecosystem services in the Netherlands. Well-known examples include Japanese knotweed and the American signal crayfish, which cause ecological damage and economic losses. Many other species have already been observed in the Netherlands but cannot yet reproduce due to climatic limitations. With rising temperatures, the risk of establishment increases.

GeoIQ Partners assessed potential future establishment of invasive species in the Netherlands. Species were selected from the Dutch species register that are already present but not yet reproducing. For each species, climate ranges in the native region were determined – whether related to air temperature, soil conditions, or salinity in freshwater and marine environments.