Table 2.
Effects of tide, sex and season on activity of sea snakes (Emydocephalus annulatus).
| Effect | df | F | P |
|---|---|---|---|
| Tide | 4.1168 | 3.00 | 0.0178 |
| Sex | 2.1168 | 5.84 | 0.0030 |
| Season | 2.1168 | 4.95 | 0.0072 |
| Tide * sex | 4.1168 | 1.31 | 0.2649 |
| Tide * season | 4.1168 | 3.61 | 0.0062 |
| Season * sex | 4.1168 | 6.11 | 0.0023 |
Three activity categories (inactive, foraging, and reproductive) were used as a three-factor multinomial dependent variable in a mixed model with snake ID as a random effect. Figures 3 and 4 show the probabilities of different activity categories predicted from this model. Bold font indicates significant values (P < 0.05).