Table 3. Relative Distance Plasticity Index (RDPI) along a nutrient gradient for populations of Acer negundo from the native and invasive ranges.

	RDPI low-to-medium nutrient levels		RDPI medium-to-high nutrient levels
Traits	Invasive	Native	Invasive	Native
Growth
Height	0.12±0.02	0.10±0.02	0.04±0.01	0.05±0.01
Diameter	0.08±0.01	0.07±0.01	0.04±0.01	0.04±0.01
Leaf traits
A area	0.29±0.04	0.28±0.04	0.19±0.03	0.14±0.04
A mass	0.24±0.04	0.25±0.06	0.15±0.03	0.11±0.03
Narea	0.24±0.03	0.22±0.02	0.27±0.02	0.28±0.04
Nmass	0.20±0.04	0.19±0.03	0.27±0.02	0.25±0.03
PNUE	0.11±0.04	0.14±0.04	0.21±0.05	0.22±0.04
LMA	0.06±0.02	0.09±0.02	0.03±0.01	0.10±0.02*
Ls	0.11±0.01	0.07±0.03	0.11±0.03	0.08±0.02
Biomass
W t	0.23±0.04	0.26±0.06	0.08±0.02	0.14±0.04
W a	0.24±0.04	0.28±0.07	0.09±0.03	0.15±0.05
W l	0.28±0.06	0.31±0.08	0.12±0.04	0.15±0.04
W s	0.23±0.04	0.28±0.07	0.09±0.02	0.16±0.05
W r	0.21±0.05	0.20±0.05	0.09±0.04	0.11±0.03
A l	0.27±0.06	0.28±0.08	0.11±0.03	0.10±0.02
Biomass allocation
RSR	0.15±0.03	0.12±0.04	0.09±0.03	0.10±0.01
LWR	0.11±0.04	0.09±0.02	0.08±0.04	0.06±0.04
SWR	0.04±0.01	0.04±0.01	0.02±0.01	0.03±0.01
RWR	0.11±0.02	0.09±0.03	0.07±0.02	0.07±0.01
LAR	0.13±0.04	0.13±0.03	0.12±0.03	0.16±0.03

Comparisons of RDPI using a Generalized Linear Mixed Model with range as a fixed factor and population nested within range as a random factor. Significant difference between ranges (P<0.05) denoted by an asterisk. See text for definition of terms.