Abstract
Recent studies using vegetation plots have demonstrated that habitat type is a good predictor of the level of plant invasion, expressed as the proportion of alien to all species. At the scale of a few to hundreds of square meters, habitat types explain much more variation in the level of invasion than climate or alien propagule pressure.
These findings make a solid background for mapping the level of plant invasion, based on the projection of the habitat-specific levels of invasion onto land-cover maps. We projected the levels of invasion on the European land-cover map, extrapolating Catalonian data to the Mediterranean bioregion, Czech data to the Continental bioregion, British data to the British Isles, and combined Czech-British data to the Atlantic and Boreal bioregions.