Summary of the parameters obtained from linear mixed-effect models in R(v2.01) with and without seal Q included
| . | AIC . | L.Ratio . | Slope . | P . |
|---|---|---|---|---|
| With Q: | ||||
| Full model | 1037.75 | |||
| Term removed: | ||||
| PER | 1037.3 | 1.55 | 0.213 | |
| Mass | 1080.05 | 44.30 | –0.0058±0.001 | <0.0001 |
| Distance 80 | –0.2731±0.025 | |||
| 1155.64 | 121.89 | <0.0001 | ||
| Distance 120 | –0.2463±0.029 | |||
| Individual | 0.5820±0.124 | <0.0001 | ||
| Without Q: | ||||
| Full model | 642.68 | |||
| Term removed: | ||||
| PER | 641.57 | 0.89 | 0.344 | |
| Mass | 641.50 | 0.82 | 0.365 | |
| Distance 80 | –0.3592±0.030 | |||
| 808.36 | 169.69 | <0.0001 | ||
| Distance 120 | –0.3830±0.032 | |||
| Individual | 0.2539±0.033 | <0.0001 |
| . | AIC . | L.Ratio . | Slope . | P . |
|---|---|---|---|---|
| With Q: | ||||
| Full model | 1037.75 | |||
| Term removed: | ||||
| PER | 1037.3 | 1.55 | 0.213 | |
| Mass | 1080.05 | 44.30 | –0.0058±0.001 | <0.0001 |
| Distance 80 | –0.2731±0.025 | |||
| 1155.64 | 121.89 | <0.0001 | ||
| Distance 120 | –0.2463±0.029 | |||
| Individual | 0.5820±0.124 | <0.0001 | ||
| Without Q: | ||||
| Full model | 642.68 | |||
| Term removed: | ||||
| PER | 641.57 | 0.89 | 0.344 | |
| Mass | 641.50 | 0.82 | 0.365 | |
| Distance 80 | –0.3592±0.030 | |||
| 808.36 | 169.69 | <0.0001 | ||
| Distance 120 | –0.3830±0.032 | |||
| Individual | 0.2539±0.033 | <0.0001 |
Seal ID (see text) and prey encounter rate (PER) were included as random effects; distance, mass and PER as fixed effects; the index was the response variable. The significance of a parameter was tested by removing each parameter from the full model and looking at the effect of the deletion on the fit of the model using likelihood ratio tests. The slope values ±s.e.m. are given for significant terms (in bold)
AIC, Akaike information criterium; L.ratio, likelihood ratio test
TBF, total body fat; DLV, diving lung volume