Table 1.

Heritability estimates (h² ± SEM) and correlation coefficients (r) for parent–offspring body mass data from experiment 1 (n = 60)

	Fathers	r	Mothers	r	Midparent	r
Sons	0.618  ±  0.094	0.653	0.404  ±  0.112	0.426	0.497  ±  0.057	0.753
Daughters	0.460  ±  0.116	0.458	0.474  ±  0.116	0.471	0.454  ±  0.070	0.648
All offspring	0.538  ±  0.092	0.610	0.440  ±  0.102	0.496	0.476  ±  0.052	0.771

All heritabilities and correlations are significantly different from zero (P < 0.001 for h²; P < 0.01 for r).