Table 3.

GLMM results for the stone dimensions (weight, length, width and thickness) and the predictor variables group, sex and age (juveniles and adults/subadults), N = 301.

	Effect	B	SE	F	df1	df2	p-value
Weight	Intercept	55.616	41.749	4.599	3	297	0.004
	Group	−3.610	25.047	0.021	1	297	0.886
	Age	81.621	32.010	6.502	1	297	0.011
	Sex	47.551	21.267	4.999	1	297	0.026
Length	Intercept	5.139	0.534	5.914	3	291	0.001
	Group	0.017	0.322	0.003	1	291	0.958
	Age	1.084	0.408	7.054	1	291	0.008
	Sex	0.776	0.273	8.100	1	291	0.005
Width	Intercept	3.396	0.321	6.559	3	291	0.001
	Group	−0.110	0.194	0.323	1	291	0.570
	Age	0.781	0.245	10.129	1	291	0.002
	Sex	0.382	0.164	5.439	1	291	0.020
Thickness	Intercept	2.289	0.272	7.146	2	291	0.001
	Group	0.027	0.164	0.027	1	291	0.869
	Age	0.706	0.208	11.498	1	291	0.001
	Sex	0.370	0.139	7.071	1	291	0.008