Talk:Adventive species

Removed original research
This entire paragraph reads like a debate about the validity of the idea of advent ice species, with no references to back it up. I'm removing it rather than attempting to copyedit it, as I don't see a way to make this encyclopedic:

''A problem with that limited definition is the frequent assumption in North America that species present pre-Columbus are native, whereas later arrivals are not native. When such later arrivals are self-sustaining, what is the appropriate term for them? If we are guided by the historical literature, we find that Bacon (1604) defined adventive as the antonym of native, while Pemberton (1964) defined adventive as the antonym of ‘endemic.’ So, why has someone later advanced the notion that adventive species cannot be self-sustaining? All arrivals should be called adventive, whether or not they are self-sustaining, whether or not they were aided by human intervention. “Immigrant” and “introduced” are subcategories of adventive.''

RainbowCrane | Talk 08:13, 18 June 2013 (UTC)