Changes in tree species composition in unmanaged floodplain forests (period 1: 1997–1999; period 2: 2013–2014) using the angle count sampling method (Bitterlich, 1984). Average basal area per hectare in floodplain forests alongside the river March on 64 sample plots in six NFR in period 1 (light green) and period 2 (dark green); error bars denote standard errors. Ulmus spp. includes U. glabra, U. minor, and U. laevis; Tilia spp. includes T. cordata, T. platyphyllos, and T. × vulgaris; Quercus spp. includes Q. petraea, and Q. robur; Populus spp. includes P. alba, P. canescens, P. tremula, P. nigra, and P. × canadensis; Salix spp. includes S. alba, S. fragilis, and S. × rubens.

  Part of: Lapin K, Oettel J, Steiner H, Langmaier M, Sustic D, Starlinger F, Kindermann G, Frank G (2019) Invasive Alien Plant Species in Unmanaged Forest Reserves, Austria. NeoBiota 48: 71-96.