Figure 4. Test of simple effects of significant interaction
terms from two-way ANOVA by pairwise comparison of least square means.
Panel (a) is least square mean P50 (\(\pm\)SE) across forest ages for
each species. Panel (b) is least square mean P50 (\(\pm\)SE) across
chronosequence regions for each forest age. Groups of bars not sharing
the same uppercase letters denote significant differences of main
effects at α = 0.05. Within groups, bars not sharing the same lowercase
letters denote significant differences at α = 0.05.