This article is about the spread of non-native organisms in the wild. For the process of adopting citizenship of a foreign country, see Naturalization.
Naturalisation (or naturalization) is the ecological phenomenon through which a species, taxon, or population of exotic (as opposed to native) origin integrates into a given ecosystem, becoming capable of reproducing and growing in it, and proceeds to disseminate spontaneously.[1] In some instances, the presence of a species in a given ecosystem is so ancient that it cannot be presupposed whether it is native or introduced.[2]
Generally, any introduced species may (in the wild) either go extinct or naturalise in its new environment.[3]
Some populations do not sustain themselves reproductively, but exist because of continued influx from elsewhere. Such a non-sustaining population, or the individuals within it, are said to be adventive.[4]Cultivated plants, sometimes called nativars, are a major source of adventive populations.
^"Definitions". Weeds Gone Wild. Archived from the original on 4 May 2023. Retrieved 4 May 2023.