Table A1.

Effects of lake, foraging specialization (Spec.), and their interaction on the first three PC-axes from PCAs of body shape and linear trait measurements, estimated using two-way ANOVA

			Spec.		Lake		Spec. × Lake
		Variance Explained (%)	F	P-value	F	P-value	F	P-value
Body shape	PC 1	28.5	21.9	<0.001	5.8	<0.01	0.3	0.72
	PC 2	17.0	17.4	<0.001	91.9	<0.001	0.3	0.76
	PC 3	14.7	24.7	<0.001	1.6	0.20	2.1	0.12
Linear traits	PC 1	59.2	11.6	<0.001	77.1	<0.001	0.1	0.87
	PC 2	14.7	75.6	<0.001	14.2	<0.001	0.6	0.52
	PC 3	8.2	16.4	<0.001	50.1	<0.001	9.7	<0.001