Table 2. Summary of ahistorical and phylogenetically independent contrast (PIC) correlations among A) within-community (α), B) among-community (β) and C) total () components of trait variation for 76 plant species (68 contrasts) in Alberta grasslands.
A. Within-community (α) | Height | SLA | Leaf size | Leaf thickness | Leaf tissue density | SRL | Root tissue density | Root diameter |
Height | −0.09 | 0.3 | 0.14 | −0.05 | −0.28 | 0.03 | 0.29 | |
SLA | −0.11 | −0.21 | −0.35 | −0.6 | 0.27 | 0.2 | −0.42 | |
Leaf size | 0.46 | −0.13 | 0.31 | −0.08 | −0.3 | −0.09 | 0.37 | |
Leaf thickness | 0.17 | −0.24 | 0.3 | −0.53 | 0.04 | −0.3 | 0.11 | |
Leaf tissue density | −0.04 | −0.58 | −0.14 | −0.64 | −0.28 | 0.08 | 0.28 | |
SRL | −0.32 | 0.15 | −0.42 | −0.05 | −0.07 | −0.4 | −0.83 | |
Root tissue density | 0.07 | −0.03 | −0.15 | −0.31 | 0.29 | −0.28 | −0.15 | |
Root diameter | 0.29 | −0.13 | 0.52 | 0.23 | −0.09 | −0.8 | −0.34 |
Cell contents are correlation coefficients. Below-diagonal values are ahistorical correlations, above-diagonal values are PIC correlations. Bold cells indicate correlations with P-value<0.05.