Relationship between light availability, expressed by DIFN, and aboveground biomass of P. serotina, in two classes of propagule pressure, expressed by the number of fruiting P. serotina trees up to 50 m from the plot (open dots and dashed line :≤ 20; solid dots and line: > 20; p < 0.001, R2 = 0.32). Threshold of 20 trees was chosen according to median and mean for all plots (18 and 18.49, respectively). Modification given by class of propagule pressure was statistically significant (p < 0.01). Note log-transformation of the y axis. Shading around regression lines indicate range of model SE.

  Part of: Jagodziński AM, Dyderski MK, Horodecki P, Knight KS, Rawlik K, Szmyt J (2019) Light and propagule pressure affect invasion intensity of Prunus serotina in a 14-tree species forest common garden experiment. NeoBiota 46: 1-21.