Population differences in plastic responses of seedling traits to contrasting habitat treatments.

<p>a) Stem height and b) Average internode length. Population means ± se are shown for 13–19 genotypes per population. Different letters and non-overlapping vertical lines show significant differences among populations in each habitat at the 0.05 level (SNK post-hoc test). An asterisk indicates a significant difference between the native population (JPB) and the introduced-range populations (linear contrast). Axes are scaled to 5–95% of data range.