This paper on what is native, or not, puts the finger right at the spot: it is no black or white but many categories in between. Especially with #climatechange species are on the move and nothing is set in stone.
Jan Wieringa
A graduated nativeness definition for overcoming dilemmas and difficulties of vascular plant species
nsojournals.onlinelibrary.wiley.com/doi/10.1002/...
Nativeness is a concept central to biodiversity conservation and invasion biology, but there are several problems related to a classic binary nativeness definition. Dilemmas arise from the dynamic na...
