Table 4.

Effects of the latency to return to the nest after a simulated predator intrusion on the total number of nestlings that survived until day 12

Effect	Estimate (mean ± SE)/Variance (mean ± SD)	Z value	P value
Fixed
Intercept	3.283 ± 0.801	4.098	4.17 × 10–5
Latency to return to nest (Trial 1)	− 0.006 ± 0.010	− 0.602	0.547
Clutch initiation	− 0.009 ± 0.005	− 1.836	0.066
Random
Site	0.014 ± 0.117
Fixed
Intercept	3.462 ± 0.826	4.192	2.77 × 10–5
Latency to return to nest (Trial 2)	− 0.021 ± 0.009	− 2.316	0.021
Clutch initiation	− 0.010 ± 0.005	− 1.905	0.057
Random
Site	0.001 ± 0.036

Results are shown separately for the first and the second trial of the simulated predator intrusions. Estimates and SE are given for fixed effects and variance and SD are given for random effects. Significant results are indicated in bold