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Table 1 Split -split- plot analysis of variance of tested environmental conditions for measured traits and group of species.

From: Invasive Acer negundo outperforms native species in non-limiting resource environments due to its higher phenotypic plasticity

Variables Species Shade Fertilization Disturbance S×F S×D F×D
RGRh Invasive 0.012 0.001 0.471 0.016 0.964 0.334
  Early sc. 0.169 <0.001 0.447 0.312 0.610 0.204
  Late sc. 0.504 0.001 0.528 0.085 0.834 0.593
RSR Invasive 0.161 <0.001 0.012 0.390 0.186 0.178
  Early sc. 0. 962 0.018 0.762 0.461 0.588 0.097
  Late sc. 0. 015 <0.001 0.066 0. 016 0.680 0.849
TLA Invasive 0.065 0.007 0.017 0.084 0.559 0.215
  Early sc. 0.156 0.001 0.297 0.067 0.770 0.898
  Late sc. 0.017 0.001 <0.001 0.021 0.127 0.099
SLA Invasive < 0.001 0.168 0.115 0.249 0.023 <0.001
  Early sc. < 0.001 0.020 0.253 0.976 0.720 0.776
  Late sc. 0.001 0.052 0.655 0.165 0.988 0.593
LWR Invasive 0.012 <0.001 <0.001 0.021 0.383 0.965
  Early sc. 0.184 <0.001 0.077 0.268 0.965 0.801
Amax Late sc. 0.437 <0.001 <0.001 0.034 0.784 0.349
  Invasive 0.710 0.043 0.168 0.450 0.897 0.986
  Early sc. 0.110 0.407 0.041 0.600 0.573 0.417
  Late sc. 0.588 0.005 0.008 0.055 0.243 0.553
Amaxw Invasive 0.023 0.086 0.130 0.242 0.541 0.752
  Early sc. 0.002 0.800 0.512 0.771 0.986 0.947
  Late sc. 0.098 0.004 0.095 0.013 0.457 0.243
Nm Invasive 0.836 <0.001 0.012 0.008 0.219 0.141
  Early sc. 0.603 <0.001 0.459 0.002 0.101 0.371
  Late sc. 0.037 <0.001 0.972 <0.001 0.773 0.548
PNUE Invasive 0.253 0.213 0.171 0.398 0.048 0.107
  Early sc. 0.629 0.090 0.029 0.257 0.634 0.213
  Late sc. 0.056 0.037 0.023 0.120 0.777 0.426
Na Invasive <0.001 0.006 0.018 0.007 0.445 0.957
  Early sc. <0.001 <0.001 0.479 <0.001 0.028 0.374
  Late sc. <0.001 <0.001 0.872 <0.001 0.812 0.654
  1. Significant p values (p < 0.05) are presented in bold. Species are grouped by strategy: the invasive species is Acer negundo, early-successional native species are Salix alba and Populus nigra and late-successional native species are Fraxinus excelsior and Fraxinus angustifolia. Traits are: RGRh relative growth rate in seedling height, RSR root/shoot ratio, TLA total leaf area, SLA specific leaf area, LWR leaf weight ratio, Amax light-saturated assimilation rate per unit leaf area, Amaxw light-saturated assimilation rate per unit leaf dry weight, Nm nitrogen content, Na nitrogen content per unit leaf area and PNUE the photosynthetic nitrogen use efficiency.