. 2020 Oct 19;10:17710. doi: 10.1038/s41598-020-73579-y

Table 2.

Summary results of the Linear Mixed Effects models and Generalised Additive Mixed effects Models used to assess the effects of local-scale environmental conditions on the trip duration, benthic dive duration, benthic dive rate, proportion of time spent diving, proportion of benthic diving, Foraging Trip Success Index (FTSI) and Foraging Trip Efficiency Index (FTEI).

Response variable	Covariate	Parametric coefficients				Approximate significance of smooth terms		p value
Response variable	Covariate	Est	SE	df	t-value	edf	F	p value
Dive duration (s)	(Intercept)	5.11	0.01	947	609.59			< 0.001
	IOD					3.45	10.84	< 0.001
	IOD₂					1.00	0.02	0.901
	SAM					3.98	25.53	< 0.001
	SAM₁					1.00	31.64	< 0.001
	SAM₂					1.00	25.25	< 0.001
	SOI					1.00	5.97	0.015
	SOI₁					1.00	14.29	< 0.001
	SOI₂					1.00	0.02	0.894
Vertical dive rate (m s⁻¹)	(Intercept)	7.69	0.02	947	456.46			< 0.001
	IOD					1.00	14.06	< 0.001
	IOD₂					1.00	1.26	0.262
	SOI					1.00	0.18	0.671
Trip duration (h)	(Intercept)	3.85	0.10	828	37.94			< 0.001
	SAM₁	0.27	0.14	828	1.89			0.059
	SOI	− 0.02	0.01	828	− 1.76			0.080
Proportion of time spent diving	(Intercept)	0.43	0.02	827	27.22			< 0.001
	IOD₂	− 0.08	0.04	827	− 1.79			0.074
	SAM	0.03	0.02	827	1.67			0.095
	SOI₁	0.00	0.00	827	2.42			0.016
Foraging Trip Success Index	(Intercept)	3.84	0.24	828	16.31			< 0.001
	IOD	2.19	0.71	828	3.08			0.002
	SOI₂	0.05	0.02	828	2.98			0.003
Foraging Trip Efficiency Index	(Intercept)	0.56	0.02	829	28.88			< 0.001
Foraging Trip Efficiency Index	IOD₂	0.10	0.06	829	1.58			0.115

Est estimated parametric coefficient, SE estimated standard error of parametric coefficients.