Table 1. Estimated parameters for the best models for behavioral variables.
| Variable | Estimate | Standard error | t-value | p |
|---|---|---|---|---|
| Frequency of all dives day-1 | ||||
| Mode (inter-nesting) | 0.1355 | 0.02116 | 6.4 | < .001 |
| Mode (foraging) | -0.05332 | 0.01882 | -2.83 | 0.0047 |
| SST | 0.05861 | 0.003429 | 17.09 | < .0001 |
| NPP | -0.00006 | 6.82E-06 | -8.09 | < .0001 |
| Frequency of bottom dives day-1 | ||||
| Mode (inter-nesting) x SST | 0.02992 | 0.004566 | 6.55 | < .0001 |
| Mode (foraging) x SST | 0.04550 | 0.004420 | 10.29 | < .0001 |
| NPP | 0.000173 | 0.000010 | 17.42 | < .0001 |
| Frequency of long dives day-1 | ||||
| Mode (inter-nesting) | -0.0492 | 0.02226 | -2.21 | 0.0273 |
| Mode (foraging) | -0.1147 | 0.02117 | -5.42 | < .0001 |
| SST | 0.0124 | 0.002601 | 4.77 | < .0001 |
| NPP | 0.000013 | 1.56E-06 | 8.4 | < .0001 |
P-values and t-values are from tests on whether each coefficient is different from zero and indicate the significance of each effect in the models. For behavioral mode, migration mode was used as the reference category for all analyses except for the analysis of frequency of bottom dives in which foraging mode was used as the reference category.