Table 2.

Components of phenotypic variance for mute swan laying date: all ages combined. (Year of breeding, year of birth and age of females were fitted as categorical fixed effects in the animal model. ***p<0.001.)

source	variance component±s.e.	proportion of total±s.e.
VR	71.02±2.90***	0.656±0.032***
VA	0.25±5.79	0.002±0.054
VM	5.19±4.71	0.048±0.043
VPE	31.74±5.98***	0.293±0.050***