Table 3.
Model averaging results for each of the six movement models that included bathymetry, but not distance to coast, slope, and sea-surface temperature due to collinearity
| Movement model | Parameter name | Beta | 95% CI | w+(j) | Mean R2 |
|---|---|---|---|---|---|
| Lower, upper | (min, max) | ||||
| Speed (m s−1) | (Intercept) | − 0.223 | − 0.239, − 0.207 | NA | 0.29 |
| Bathymetry | 0.051 | 0.034, 0.068 | 1 | (0.12, 0.32) | |
| Sea-surface salinity | − 0.070 | − 0.084, − 0.055 | 1 | ||
| Sea-surface height | 0.010 | − 0.255, 0.274 | 0.16 | ||
| Sea-surface height2 | − 0.041 | − 0.353, 0.270 | |||
| Sea-surface velocity | 0.010 | − 0.008, 0.028 | 0.68 | ||
| Hour of the day | − 0.589 | − 1.309, 0.131 | 0.84 | ||
| Hour of the day2 | − 0.332 | − 0.959, 0.295 | |||
| Turning angle (°) | (Intercept) | 44.61 | 42.5, 46.9 | NA | 0.08 |
| Bathymetry | − 1.87 | − 4.82, 1.09 | 0.75 | (0.02, 0.09) | |
| Sea-surface salinity | 5.42 | 3.31, 7.52 | 1 | ||
| Sea-surface height | − 3.31 | − 27.1, 20.4 | 0.14 | ||
| Sea-surface height2 | − 2.41 | − 23.1, 18.3 | |||
| Sea-surface velocity | − 0.294 | − 1.986, 1.398 | 0.32 | ||
| Hour of the day | − 52.76 | − 129.7, 24.2 | 0.86 | ||
| Hour of the day2 | − 53.78 | − 136.1, 28.5 | |||
| Dive duration (s) | (Intercept) | 1.672 | 1.648, 1.696 | NA | 0.31 |
| Bathymetry | 0.045 | 0.015, 0.075 | 0.97 | (0.14, 0.36) | |
| Sea-surface salinity | 0.055 | 0.030, 0.078 | 1 | ||
| Sea-surface height | − 0.483 | − 1.187, 0.221 | 0.53 | ||
| Sea-surface height2 | 0.456 | − 0.210, 1.122 | |||
| Sea-surface velocity | 0.014 | − 0.010, 0.038 | 0.42 | ||
| Hour of the day | 0.447 | − 0.249, 1.144 | 0.26 | ||
| Hour of the day2 | 0.271 | − 0.486, 1.027 | |||
| Dive depth (m) | (Intercept) | 1.096 | 1.069, 1.121 | NA | |
| Bathymetry | 0.156 | 0.122, 0.189 | 1 | ||
| Sea-surface salinity | 0.014 | − 0.010, 0.038 | 0.6 | ||
| Sea-surface height | 0.063 | − 0.304, 0.4313 | 0.29 | ||
| Sea-surface height2 | 0.121 | − 0.346, 0.588 | |||
| Sea-surface velocity | − 0.011 | − 0.034, 0.012 | 0.6 | ||
| Hour of the day | 0.010 | − 0.235, 0.256 | 0.17 | ||
| Hour of the day2 | -0.050 | − 0.390, 0.289 | |||
| Dive wiggliness (m) | (Intercept) | 0.882 | 0.845, 0.918 | NA | 0.25 |
| Bathymetry | 0.226 | 0.184, 0.266 | 1 | (0.11, 0.29) | |
| Sea-surface salinity | 0.056 | 0.011, 0.110 | 0.96 | ||
| Sea-surface height | 0.298 | − 1.002, 1.599 | 0.78 | ||
| Sea-surface height2 | − 1.688 | − 2.991, 0.385 | |||
| Sea-surface velocity | 0.045 | − 0.006, 0.095 | 0.78 | ||
| Hour of the day | 1.250 | 0.018, 2.481 | 0.56 | ||
| Hour of the day2 | 0.533 | − 0.728, 1.795 | |||
| Post-dive duration (s) | (Intercept) | 1.546 | 1.513, 1.577 | NA | 0.23 |
| Bathymetry | − 0.001 | − 0.023, 0.021 | 0.27 | (0.11, 0.27) | |
| Sea-surface salinity | 0.092 | 0.056, 0.128 | 1 | ||
| Sea-surface height | − 0.217 | − 1.037, 0.602 | 0.58 | ||
| Sea-surface height2 | 0.528 | − 0.624, 1.680 | |||
| Sea-surface velocity | − 0.009 | − 0.037, 0.020 | 0.43 | ||
| Hour of the day | 0.149 | − 0.567, 0.864 | 0.23 | ||
| Hour of the day2 | 0.019 | − 0.481, 0.519 |
Regression coefficients (Beta) and 95% CI are model-averaged estimates of each environmental variable calculated over the candidate model set. The relative variable importance (w+(j)) is the sum of the Akaike’s weights across all possible models where variable j occurred. The w+(j) is provided for all covariates and those in bold indicate that the 95% CI does not overlap with 0. The mean (min, max) generalized R2 value is provided and calculated from the full set of candidate models. Note that the environmental variables “Sea-surface height” and “Hour of the day” were fitted as second order polynomials, and therefore, two regression coefficients (Beta) and 95% CIs are provided but only one w+(j)