Table 2.

Comparison of the models based on AIC and BIC, with covariates and removing one variable at a time for both Model 2 and Model 3. The memory covariate represents the number of dive batches spent searching in a grid cell during the previous month, and prey encounters indicates the mean number of catch attempts per dive for each batch.

covariates	log-likelihood	AIC	BIC	ΔAIC	ΔBIC
Model 2
with memory	−164 875	329 759	329 848	0	0
without memory	−165 000	330 017	330 090	258	242
Model 3
memory + prey encounters	−26 816	53 657	53 739	0	0
memory × prey encounters	−26 814	53 657	53 751	0	12
memory	−26 845	53 780	53 781	54	41
prey encounters	−26 882	53 909	53 910	129	116