The term invasive species is reserved for non-native organisms that cause ecological damage. When I think of invasive species, I immediately think of species that have originated from a foreign place, that have impacted the ecosystems I know and love in a negative way. I think about invasive species through this perspective, not really recognizing that there are native species from my own backyard that have infiltrated ecosystems in Europe. Take Aureoboletus projectellus for example.