Table 1 Parameters for the scaling of vein traits with leaf size.
From: Developmentally based scaling of leaf venation architecture explains global ecological patterns
Trait category/trait | Units | Method | Expection for b from development | b -value for global dataset , palmate (95% CIs) | b -value for global dataset , pinnate (95% CIs) | a -value for global dataset , palmate (95% CIs) | a -value for global dataset , pinnate (95% CIs) | Tests for differences between palmate and pinnate |
|---|---|---|---|---|---|---|---|---|
Vein diameter | ||||||||
1° vein | mm | SMA | b ·<0.5 | 0.452 (0.426, 0.480) | −1.12 (0.70***) | −0.851 (0.58***) | b: P=0.06 a: P<0.001 | |
2° vein | mm | SMA | 0<b<0.5 | 0.368 (0.344, 0.394) | −1.40 (0.61***) | −1.24 (0.45***) | b: P=0.61 a: P<0.001 | |
3° vein | mm | SMA | b·≥0 | 0 (rs=−0.04; P=0.68) | 0.222 (0.198, 0.248) | — | −1.35 (0.078***) | — |
Minor vein | mm | SMA | b=0 | 0 (rs=−0.22; P=0.24) | 0 (rs=0.19; P=0.33) | — | — | — |
Vein density (length per leaf area) | ||||||||
Midvein | cm−1 | OLS | b·≥−0.5 | −0.532 (−0.567, −0.498) | −0.490 (−0.506, −0.473) | 0.165 (0.90***) | 0.243 (0.90***) | b: P=0.033 |
1° veins | cm−1 | OLS | b·≥−0.5 | −0.492 (−0.508, −0.476) | 0.658 (0.71***) | 0.245 (0.90***) | b: P=0.33 a: P<0.001 | |
2° veins | cm−1 | OLS | −0.5<b<0 | −0.395 (−0.416, −0.375) | 0.810 (0.66***) | 0.854 (0.78***) | b: P=0.40 a: P=0.007 | |
3° veins | cm−1 | OLS | −0.5<b<0 | −0.300 (−0.324, −0.276) | 1.19 (0.46***) | 1.06 (0.62***) | b: P=0.28 a: P<0.001 | |
Major veins | cm−1 | OLS | −0.5<b<0 | −0.341 (−0.360, −0.322) | 1.42 (0.67***) | 1.31 (0.77***) | b: P=0.12 a: P<0.001 | |
Minor veins | mm−1 | OLS | b=0 | 0 (rs=0.27; P=0.093) | 0 (rs=0.22; P=0.24) | — | — | — |
Total vein system | mm−1 | OLS | b=0 | 0 (rs=0.12; P=0.44) | 0 (rs=−0.18; P=0.21) | — | — | — |
Vein surface area per leaf area | ||||||||
1° veins | OLS | b·≤0 | 0 (rs=−0.13; P=0.22) | −0.150 (−0.188, −0.112) | — | −1.02 (0.18***) | — | |
2° veins | OLS | b·≤0 | 0 (rs=−0.12; P=0.24) | −0.142 (−0.174, −0.110) | — | −0.784 (0.18***) | — | |
3° veins | OLS | b<0 | −0.240 (−0.270, −0.270) | −0.552 (0.37***) | −0.656 (0.40***) | b: P=0.81 a: P<0.001 | ||
Major veins | OLS | b<0 | −0.172 (−0.195, −0.145) | −0.307 (0.37***) | b: P=0.18 a: P=0.07 | |||
Minor veins | OLS | b=0 | 0 (rs=−0.31; P=0.097) | 0 (rs=0.29; P=0.13) | — | — | — | |
Total vein system | OLS | b·≤0 | −0.155 (−0.292, −0.019) | 0 (rs=0.22; P=0.24) | 0.197 (0.17*) | — | — | |
Vein volume per leaf area | ||||||||
1° veins | mm | OLS | 0<b<0.5 | 0.377 (0.279, 0.505) | 0.180 (0.114, 0.247) | −2.64 (0.27***) | −2.37 (0.076***) | b: P=0.013 |
2° veins | mm | OLS | 0<b<0.5 | 0.138 (0.089, 0.188) | −0.288 (0.16***) | −0.254 (0.04***) | b: P=0.11 a: P<0.001 | |
3° veins | mm | OLS | b<0 | −0.188 (−0.235, −0.141) | −2.39 (0.21***) | −2.46 (0.13***) | b: P=0.27 a: P=0.016 | |
Major veins | mm | OLS | 0≤b<0.5 | 0.160 (0.0469, 0.274) | 0 (rs=0.11; P=0.074) | −2.09 (0.09**) | — | — |
Minor veins | mm | OLS | b=0 | 0 (rs=−0.24; P=0.21) | 0 (rs=0.23; P=0.22) | — | — | — |
Total vein system | mm | OLS | 0≤b<0.5 | 0.371 (0.178, 0.564) | −2.20 (0.21***) | b: P=0.61 a: P=0.30 | ||
