Twenty years of change in riverside vegetation: what role have invasive alien plants played?

Question Which environmental factors influence the occurrence of invasive alien plants ( IAP s) in riparian habitats, and how much can IAP s account for change in native vegetation compared with other environmental variables? Location Rivers distributed throughout mainland Britain. Methods We quantified change in river bank vegetation using survey data collected approximately 20 yr apart and assessed the contribution of major IAP s ( Impatiens...