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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     
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