Table 3 Estimated variance components of nestling house wren traits (conditioned on fixed effects) under the animal model, heritabilities (h 2 ), and nest effects (n 2 )
From: Genetic and environmental variation in condition, cutaneous immunity, and haematocrit in house wrens
Trait/Component | Estimate ± SE | Full model LnL | Reduced LnL | χ 2 | P |
|---|---|---|---|---|---|
TARSUS | |||||
VP | 0.466 ± 0.021 | ||||
VA | 0.052 ± 0.057 | −102.58 | −102.99 | 0.83 | 0.180 |
Vnest | 0.096 ± 0.026 | −102.58 | −111.62 | 18.08 | <0.001 |
Vresidual | 0.318 ± 0.038 | ||||
h2 | 0.113 ± 0.121 | ||||
n2 | 0.206 ± 0.054 | ||||
HAEMATOCRIT | |||||
VP | 42.47 ± 2.01 | ||||
VA | 6.34 ± 3.26 | −4253 | −4256 | 4.86 | 0.0137 |
Vnest | 20.18 ± 2.25 | −4253 | −4374 | <0.001 | |
Vresidual | 15.95 ± 2.00 | ||||
h2 | 0.149 ± 0.076 | ||||
n2 | 0.475 ± 0.039 | ||||
PHA | |||||
VP | 0.0883 ± 0.0044 | ||||
VA | 0.0068 ± 0.0065 | 1811 | 1810 | 1.24 | 0.133 |
Vnest | 0.0477 ± 0.0049 | 1811 | 1658 | 305.9 | <0.001 |
Vresidual | 0.0338 ± 0.0040 | ||||
h2 | 0.077 ± 0.073 | ||||
n2 | 0.540 ± 0.038 | ||||
MASS (“Condition”) | |||||
VP | 0.712 + 0.031 | ||||
VA | 0.096 + 0.055 | −373.8 | −375.4 | 3.166 | 0.038 |
Vnest | 0.315 + 0.035 | −373.8 | −478.3 | 209.0 | <0.001 |
Vresidual | 0.300 + 0.034 | ||||
h2 | 0.135 + 0.077 | ||||
n2 | 0.443 + 0.039 |