Appendix D (TABLE D1). Model selection summary for snail survivorship over 10-day experiment. Fitted parameters include (a) intercept of 1, (b) tidal regime, (c) identity of predator and its cue, as well as (d) presence of any predator or predator cue. AIC difference (Δi) is the difference between the AICc of model i and the lowest AICc observed. Akaike weight (wi) is calculated as the model likelihood, exp(-Δi / 2), normalized by the sum of all model likelihoods; values close to 1 indicate greater confidence in the selection of a model.
|
Snail survivorship models |
df | (Δi) | wi |
| a | 3 | 40.2 | < 0.001 |
| b | 4 | 44.6 | < 0.001 |
| c | 9 | 0.0 | 0.87 |
| b + c | 10 | 3.8 | 0.13 |
| b × c | 16 | 34.4 | < 0.001 |