Ecological Archives E096-131-A4
Ricardo M. Holdo and Jesse B. Nippert. 2015. Transpiration dynamics support resource partitioning in African savanna trees and grasses. Ecology 96:1466–1472. http://dx.doi.org/10.1890/14-1986.1
Appendix D. A table showing lasso regression coefficients and model fits.
Table D1. Lasso regression coefficients and model fits for two sets of models (soil moisture variables only and weather + soil moisture variables) relating environmental variables to transpiration metrics (rescaled sap flow in trees and –Tc and –ΔT in grasses).
Type |
ID |
Soil moisture only |
|
Weather + soil moisture |
||||||||||||
|
5cm |
10cm |
20cm |
40cm |
Adj.R² |
|
Wind |
TA |
RH |
Rad |
5cm |
10cm |
20cm |
40cm |
Adj.R² |
|
Tree |
P1 |
|
|
|
0.00 |
|
-0.03 |
0.43 |
1.57 |
0.41 |
-0.02 |
0.18 |
|
0.50 |
||
|
P2 |
|
|
|
0.21 |
0.20 |
|
|
0.62 |
0.31 |
|
0.00 |
|
0.18 |
0.64 |
|
|
P3 |
|
|
|
|
0.00 |
|
-0.01 |
1.03 |
2.92 |
0.34 |
|
0.01 |
|
-0.08 |
0.36 |
|
P4 |
|
|
|
|
0.00 |
|
-0.41 |
0.69 |
1.67 |
0.31 |
|
|
|
-0.07 |
0.40 |
|
P5 |
-0.07 |
|
|
0.25 |
0.10 |
|
|
0.13 |
0.43 |
|
|
|
0.59 |
||
|
P6 |
|
|
|
0.55 |
0.30 |
|
-0.02 |
0.06 |
0.08 |
0.44 |
|
|
|
0.56 |
0.62 |
|
P7 |
|
|
|
0.26 |
0.16 |
|
-0.16 |
0.15 |
1.84 |
0.44 |
|
-0.03 |
|
0.21 |
0.53 |
|
P8 |
-0.01 |
|
|
0.23 |
0.15 |
|
|
0.09 |
-0.02 |
0.44 |
-0.01 |
|
0.08 |
0.09 |
0.66 |
|
T1 |
|
|
|
0.00 |
|
|
|
|
|
|
|
|
|
0.00 |
|
|
T2 |
|
-1.62 |
|
1.45 |
0.48 |
|
-0.12 |
1.52 |
0.15 |
|
-0.41 |
|
0.86 |
0.61 |
|
|
T3 |
|
-1.58 |
|
0.91 |
0.35 |
|
-0.84 |
-0.15 |
-3.09 |
0.34 |
|
-1.10 |
|
0.74 |
0.61 |
|
T4 |
|
-1.15 |
|
0.48 |
0.26 |
|
|
|
-1.09 |
0.32 |
|
-0.59 |
|
0.17 |
0.50 |
|
T5 |
|
-0.98 |
|
0.55 |
0.35 |
|
|
|
-0.01 |
0.25 |
|
-0.72 |
|
0.41 |
0.45 |
|
T6 |
|
-1.64 |
0.56 |
0.49 |
0.22 |
|
-0.62 |
0.68 |
-1.80 |
0.45 |
|
-0.97 |
0.61 |
0.70 |
|
|
T7 |
|
-0.45 |
|
0.51 |
0.19 |
|
-0.19 |
0.16 |
-0.01 |
0.41 |
|
|
0.10 |
0.62 |
|
|
T8 |
|
-1.57 |
|
1.17 |
0.40 |
|
-0.11 |
-3.92 |
0.20 |
|
-0.50 |
|
0.78 |
0.62 |
|
Grass (-Tc) |
G1 |
13.3 |
|
-2.7 |
-6.3 |
0.12 |
|
-1.00 |
-88.7 |
-2.7 |
-0.39 |
10.3 |
-8.57 |
0.37 |
0.97 |
|
G2 |
25.6 |
|
-4.7 |
-8.8 |
0.19 |
|
-82.8 |
18.6 |
-0.03 |
10.4 |
-3.31 |
|
-1.76 |
0.98 |
||
G3 |
24.9 |
|
-2.2 |
-10.5 |
0.17 |
|
1.41 |
-76.8 |
32.2 |
-0.79 |
2.4 |
|
|
0.95 |
||
G4 |
14.8 |
|
-3.6 |
-4.9 |
0.14 |
|
-7.40 |
-87.5 |
26.9 |
-0.42 |
1.4 |
-0.48 |
|
|
0.98 |
|
Grass (-ΔT) |
G1 |
0.39 |
-1.49 |
0.8 |
0.01 |
0.07 |
|
-0.42 |
9.5 |
-5.3 |
-0.30 |
10.5 |
-8.83 |
0.53 |
|
0.36 |
G2 |
1.53 |
|
|
|
0.14 |
|
|
14.8 |
13.4 |
|
10.9 |
-3.69 |
|
-1.56 |
0.54 |
|
G3 |
1.72 |
|
|
|
0.13 |
|
7.33 |
14.8 |
18.7 |
-0.61 |
4.5 |
|
|
-0.01 |
0.42 |
|
G4 |
2.59 |
-0.31 |
|
0.01 |
0.11 |
|
-7.66 |
8.3 |
19.1 |
-0.39 |
3.2 |
-1.00 |
|
|
0.31 |
|
Note: Coefficients equal to 0 are omitted; values in bold denote cases where non-zero coefficients resulted in ≥ 90% of runs (N = 100)