Table 4.

Results from the Hp model selection procedure showing parameter estimates and selection probabilities (see Statistical analysis and Table 2).

Parameter	Estimate ± SE	RVI	Effect size R 2
Brood size	0.46 ± 0.20	0.75	0.059
Laying date	−0.12 ± 0.04	0.69	0.072
Sex	−0.69 ± 0.38	0.87	0.008
Light	−8.54 ± 12.47	0.80	0.044
Noise	0.20 ± 0.06	1.00	0.116
Light:Sex	0.83 ± 1.41	0.45	0.001
Noise:Light	0.35 ± 0.19	0.31	0.043

Only factors that were used for model averaging are shown. Models were run on data from 475 nestlings of 78 nests. Haptoglobin levels had been square root transformed. Relative variable importance (RVI) are shown as well as effect sizes (partial R ²’s) which were calculated following Edwards, et al.⁷⁴.