Table 1.
Quantitative genetic parameters for models including only random effects computed with the ‘QGglmm’ package in R [39], except for repeatability that was calculated as (VA + VPE + VM + VCE)/VP (see the Material and methods section for a detailed description). Estimates are the modes of the posterior distributions, which are presented together with their 95% credibility intervals.
| egg cleaning | digging | defence | |
|---|---|---|---|
| trait mean | 0.42 (0.36, 0.51) | 0.54 (0.45, 0.61) | 34.94 (17.3, 65.6) |
| phenotypic variance (VP) | 0.25 (0.23, 0.25) | 0.25 (0.24, 0.25) | 13 144 (1287, 39611) |
| add. genet. variance (VA) | 1 × 10−4 (8 × 10−10, 3 × 10−2) | 3 × 10−4 (1 × 10−9, 0.05) | 7.0 (1 × 10−4, 542.0) |
| heritability (h2) | 6 × 10−4 (3 × 10−9, 0.13) | 1 × 10−3 (1 × 10−9, 0.22) | 4 × 10−4 (6 × 10−9, 0.05) |
| permanent environment (VPE) | 0.40 (0.13, 0.60) | 0.001 (8.1 × 10−8, 0.26) | 5.6 × 10−4 (1.9 × 10−8, 0.08) |
| repeatability (R) | 0.51 (0.29, 0.73) | 0.29 (0.14, 0.54) | 0.33 (0.18, 0.48) |
| coefficient of determination (R2) | 0.81 | 0.70 | 0.96 |