Table 2.
PGLM slopes for each morphology cluster. Slopes in bold indicate overlap of 95% CI with predicted slope. λ estimates phylogenetic signal, with λ = 0 inferring no phylogenetic signal in the data and λ = 1 corresponding to a Brownian Motion model of evolution.
| Model | Prediction | Cluster 1 Slope [95% CI] n = 17 |
λ | Cluster 2 Slope [95% CI] n = 44 |
λ | Cluster 3 Slope [95% CI] n = 36 |
λ | Cluster 4 Slope [95% CI] n = 32 |
λ | Cluster 5 Slope [95% CI] n = 11 |
λ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. Constant power density | β = 1 | −0.02 [−0.18, 0.13] |
0.00 | −0.02 [−0.12, 0.09] |
0.00 | 0.13 [−0.09, 0.35] |
0.00 | 0.00 [−0.09, 0.09] |
1.00 | 0.03 [−0.18, −0.25] |
0.00 |
| 2. Constant speed | β =0 |
−0.12
[−0.55, 0.32] |
0.00 | 0.65 [0.23, 1.07] |
0.00 |
0.05
[−0.40, 0.50] |
0.00 |
0.12
[−0.11, 0.36] |
0.00 |
0.10
[−0.15, 0.34] |
1.00 |
| 3. Constant power transfer | β =1 | 0.24 [−0.33, 0.81] |
0.00 | 0.02 [−0.45, 0.48] |
0.00 | −0.05 [−0.43, 0.32] |
0.00 | −0.13 [−0.15, 0.40] |
0.00 | −0.08 [−0.28, 0.12] |
1.00 |
| 4. Constant force | β = −1 | −0.17 [−0.56, 0.21] |
0.00 | 0.50 [0.09, 0.91] |
0.00 | −0.07 [−0.60, 0.45] |
0.00 | 0.06 [−0.21, 0.33] |
1.00 | 0.04 [−0.25, 0.33] |
1.00 |