Table 2.
Comparison between generalized linear mixed models performed with environmental variables recorded, to explain variability of time on surface every 3 hours
| Fixed effect variables | AIC | R2 (%) | χ2 |
|---|---|---|---|
| Tund, Te, Hour, Wind | 3600.3 | 59.9 | 512.6 |
| Tund, Te, Hour | 3635.7 | 55.6 | 473.2 |
| Tund, Tair, Hour | 3683.7 | 57.5 | 425.2 |
| Tund, Hour | 3691.2 | 53.1 | 421.7 |
| Te, Hour | 3721.4 | 59.4 | 391.5 |
| Hour | 3829.0 | 54.3 | 265.9 |
| Te | 4006.0 | 31.1 | 84.9 |
| Tund | 4049.8 | 16.3 | 41.1 |
| Wind | 4067.5 | 11.3 | 23.4 |
| Tair | 4069.2 | 12.8 | 21.7 |
R2 values consider the random effect variable, animal ID. Final model, in bold, is further discussed in the text.
Number of observations: 633 from 10 animals. All models above were significant with P < 0.001.