Table 3.

Cumulative model selection.

ID	# par.	AIC	ΔAIC	R2	ε	Calf	Small	Large
6	11	37269.4	0.0	32.3	14.2	−	+
1	12	37281.2	11.8	32.1	14.3	−	+	+
3	10	37300.2	30.8	33.0	14.3	−
7	11	37300.6	31.2	33.0	14.3	−		−
8	11	37313.8	44.4	33.8	14.4		+	+
4	10	37315.9	46.5	33.8	14.4		+
2	9	37320.1	50.7	33.3	14.4
5	10	37320.4	51.0	33.2	14.4			+

The direction of individual type effects on diving costs are indicated as ± when they were included in the model.