Table 1.

Variance components for migratory traits in southern German blackcaps

Trait	h2	m2	y2
Amount of MA	0.431 ± 0.065*	NS	0.260 ± 0.083*
Onset of MA	0.372 ± 0.073*	0.248 ± 0.044*	0.110 ± 0.047*
Termination of MA	0.358 ± 0.059*	NS	0.018 ± 0.013†

Heritabilities (h²), maternal effects (m²), and year effects (y²) are given ±1 SE. MA, migratory activity. All variance components were standardized by the total phenotypic variance. Significance levels: NS P > 0.05,

*P < 0.05;

^†P < 0.001.