Table 2. Summary results of the four Generalised Additive Mixed Effects Models, the include individual smoothers for short and long foraging trips, used to assess the temporal trends in the foraging effort of female Australian fur seals provisioning young at Kanowna Island, Bass Strait, Australia.

Response variables	Predictor variables	Parametric coefficients			Approximate significance of smooth terms		P
		Est	SE	t	edf	F
Proportion of time diving	Long trip	0.51	0.01	39.53			<0.0001
	Short trip	−0.02	0.01	−1.56			0.118
	hour of day				9.65	57.42	<0.0001
	Julian day				8.04	14.96	<0.0001
	n days: short trips				1.81	0.30	0.714
	n days: long trip				6.68	23.55	<0.0001
Mean dive duration (s)	Long trip	184.83	3.91	47.27			<0.0001
	Short trip	−11.69	3.42	−3.41			0.0006
	hour of day				7.764	72.53	<0.0001
	Julian day				9.18	20.91	<0.0001
	n days: short trips				1.681	15.05	<0.0001
	n days: long trip				4.60	52.17	<0.0001
Vertical dive effort (m/hr)	Long trip	1288	34.39	37.46			<0.0001
	Short trip	−79.76	43.81	−1.82			0.068
	hour of the day				9.82	206.02	<0.0001
	Julian day				8.39	11.42	<0.0001
	n days: short trips				1.94	13.82	<0.0001
	n days: long trip				7.09	66.23	<0.0001
Mean postdive duration (s)	Long trip	106.26	2.40	44.24			<0.0001
	Short trip	−6.19	2.16	−2.86			0.004
	hour of the day				11.44	16.93	<0.0001
	Julian day				1.66	37.45	<0.0001
	n days: short trips				2.19	12.81	<0.0001
	n days: long trip				6.77	28.56	<0.0001

Est: estimated parametric coefficient. SE: estimated standard error of parametric coefficient.

Note: Only results of the number of days into the foraging trip part of the analysis shown as the shape of response for other timescales did not vary significantly from those presented using models without individual smoothing splines for short and long foraging trips.