Table 3

Genetic and non-genetic sources of variance and covariance.

source of variation
immune response bi ± SE
body condition bi ± SE
covariance bi ± SE

σAO2
0.034 ± 0.016*
0.149 ± 0.156
0.053 ± 0.024*
σDO2
0.069 ± 0.062
0.386 ± 0.526
0.010 ± 0.110
σAOAM
-0.044 ± 0.026
0.142 ± 0.178
-0.035 ± 0.029
σAM2
0.079 ± 0.046
-0.457 ± 0.346
0.051 ± 0.055
σ2DM+C
-0.055 ± 0.033
0.465 ± 0.327
-0.018 ± 0.049
σE2
-0.038 ± 0.049
0.245 ± 0.385
-0.023 ± 0.080
σP2
0.045 ± 0.101
0.929 ± 0.841
0.037 ± 0.159

σAO2 = additive direct genetic variance, σDO2 = dominance direct genetic variance, σAOAM = direct-maternal additive genetic covariance, σAM2 = additive maternal (or 'indirect') genetic variance, σ2DM+C = dominance maternal genetic variance and common environmental variance (maternal and cage), and σE2 = residual environmental variance. Asterisks denote statistical significance (* p < 0.05)

Gleeson et al. BMC Evolutionary Biology 2005 5:61   doi:10.1186/1471-2148-5-61