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. 2021 Sep 10;118(37):e2017063118. doi: 10.1073/pnas.2017063118

Table 2.

Model results presented with estimates and SE for each factor

Final model Estimate ± SE t/z P Npredator Ncontrol
A. Experiment 1
Fresh egg weight (5 replicates per brood) 5 6
 Intercept 8.63e−04 ± 2.38e−05 36.17
 Treatment −1.55e−04 ± 3.54e−05 4.39 0.001
Clutch size 5 6
 Intercept 79.83 ± 10.17 7.85
 Treatment −12.83 ± 15.08 −0.85 0.35
Total amino acid content (3 replicates per brood) 5 6
 Intercept 212.26 ± 5.56 38.13
 Treatment −19.97 ± 5.56 −3.59 0.001
Amino acid concentration (3 replicates per brood) 5 6
 Intercept 0.42 ± 0.008 48.71
 Treatment −0.007 ± 0.008 −0.89 0.33
B. Experiment 2
Clutch size and fry stage
Clutch size 8 10
 Intercept 59.17 ± 11.94 16.65
 Treatment 16.94 ± 12.12 1.39 0.53
 Mean centered maternal weight 4.03 ± 2.62 1.53 0.08
 Number of presentations 0.04 ± 0.64 0.06 0.31
 Treatment × number of presentations −1.03 ± 0.64 −1.61 0.07
Dry body weight at day 3 (2 to 4 replicates per brood) 8 10
 Intercept 3.57e−04 ± 4.25e−04 8.40
 Treatment −3.46e−04 ± 1.66e−04 −2.08 0.05
 Density of larvae at day 3 −8.98e−07 ± 9.05e−07 −0.99 0.33
Dry body weight at day 10 (3 to 4 replicates per brood) 8 10
 Intercept 6.42e−04 ± 8.75e−05 7.33
 Treatment 1.50e−05 ± 4.13e−05 0.36 0.71
 Density of larvae at day 10 −5.60e−06 ± 2.22e−06 −2.52 0.02
Predator escape test
Response time (3 replicates per brood) 8 10
 Intercept −0.008 ± 0.10 −0.82
 Treatment 0.038 ± 0.019 2.01 0.04
 Angle with feeding plate 0.00055 ± 0.00053 1.03 0.28
 Length −0.044 ± 0.049 −0.90 0.35
Feeding frequency (3 replicates per brood) 8 10
 Intercept 0.18 ± 0.44 0.41z
 Treatment 0.58 ± 0.25 2.29z 0.019
 FI −11.31 ± 12.75 −0.88z 0.16

When a model yielded z values, this is indicated with a superscripted “z.” Information on model fixed and random factors are given in SI Appendix, Table S6. P values <0.05 are formatted in bold; values of 0.05 < P < 0.1 are formatted in italics (except intercepts). Npredator and Ncontrol represent the number of broods, each produced by a different breeding pair. Estimates are based on sum contrasts, where the intercept represents the overall mean for the two factors (control and predator) in this study. Estimates for treatment refer to that of the control treatment. All other model factors are continuous covariates.