Assessment of possible adverse consequences for biodiversity when planting vascular plants outside their natural range in Norway -(VKM)
2021
Nielsen, Anders | Måren, Inger Elisabeth | Rosef, Line | Kirkendall, Lawrence Richard | Malmstrøm, Martin | Velle, Gaute | de Boer, Hugo | Eldegard, Katrine | Hindar, Kjetil | Hole, Lars Robert | Kausrud, Kyrre Linné | Järnegren, Johanna | Nilsen, Erlend Birkeland | Rueness, Eli Knispel | Thorstad, Eva Bonsak
The aim of this report is to define guidelines that helps prevent the planting of vascular plant species with a high potential for negative effects on local biodiversity. It is assumed that the native or local populations are better adapted to local environmental conditions than populations from other areas or regions, and the risk of harmful genetic changes is therefore considered small when using local plant and seed sources. Arriving at a common definition for the area within which plants are “local” is difficult, though; vascular plant species are numerous (3317 species in mainland Norway, of which more than half are alien species introduced after 1800, Artdatabanken 2015), have different growth forms, different environmental requirements, and different reproductive and dispersal ecology. Even closely related vascular plant species can differ in such characteristics and hence in the extent of the "place" or “area”.
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