What happens in Europe stays in Europe: apparent evolution by an invader does not help at home.

摘要: Some invasive plant species rapidly evolve greater size and/or competitive ability in their nonnative ranges. However, it is not well known whether these traits transfer back to the native range, or instead represent genotype-by-environment interactions where are context specific communities new range evolution occurred. Insight into transferability vs. specificity can be tested using experiments performed with individuals from populations and ranges of exotic species. Using a widespread Europe, Solidago gigantea, we established reciprocal common garden (Montana, North America; n = 4) (Hungary, Europe; assess differences size, vegetative shoot number, herbivory between In greenhouse experiment, also inherent genotypes 15 differed when pitted against 11 American competitors. gardens, plants both considered together produced five times more biomass, grew four taller, developed rhizomes compared garden. The interaction origin location was highly significant, Hungary performing better than Montana grown Hungary, Montana. greenhouse, there were no effects responses S. gigantea two natives. Our results suggest that might have undergone rapid for performance abroad, but if so, this response does translate at home.