TABLE 2.

Estimated variance components and repeatabilities (R) from univariate mixed effect models of OFT and FST traits.

Assay	Trait	V I	V R	R	${\chi }_{0,1}^2$	p
OFT	Track Length	0.616 (0.158)	0.368 (0.058)	0.626 (0.074)	48.884	<.001
	Area Covered	0.529 (0.146)	0.413 (0.065)	0.562 (0.085)	33.988	<.001
	Wall Distance	0.153 (0.100)	0.759 (0.118)	0.168 (0.102)	3.040	.041
	‐(Freezings)	0.456 (0.141)	0.546 (0.086)	0.455 (0.094)	22.633	<.001
FST	Track Length	0.102 (0.06)	0.458 (0.069)	0.183 (0.098)	4.032	.022
	Time in Open	0.365 (0.13)	0.668 (0.102)	0.353 (0.097)	14.207	<.001
	‐(Food Latency)	0.000 a	0.995 (0.122)	0.000 a	0.000	.500
	‐(Freezings)	0.109 (0.048)	0.306 (0.046)	0.263 (0.099)	8.056	.002

Note: V _I and V _R denote among‐individual and residual variances, respectively, and standard errors are shown in parentheses. Also shown are χ ² and p derived from LRT to test the significance of V _I for each trait.

^a For this trait the estimate of V _I was bound to zero and no SE is estimable.