TABLE 1.
Estimates for both fixed and random effects from a model used to investigate the effect of inbreeding, additive genetic variance (V A) and variance in shared environment effects (V S) on the probability of koalas testing positive for Chlamydia pecorum
Posterior distribution | ||||
---|---|---|---|---|
Mode | Mean | CI 5% | CI 95% | |
Fixed effects | ||||
Intercept | −2.332 | −2.436 | −3.445 | −1.383 |
SexFEMALE | 0.037 | 0.098 | −0.402 | 0.587 |
Age | 0.145 | 0.147 | 0.033 | 0.248 |
IR | 1.071 | 1.496 | −3.402 | 6.122 |
SeasonBREEDING | 0.623 | 0.691 | 0.217 | 1.122 |
Age*IR | −0.038 | −0.133 | −0.179 | 0.852 |
Random effects | ||||
V A | ||||
Latent | 1.348 | 1.575 | 0.225 | 2.935 |
Data‐scale | 0.008 | 0.014 | 0.003 | 0.326 |
h 2 | ||||
Latent | 0.573 | 0.576 | 0.33 | 0.737 |
Data‐scale | 0.112 | 0.142 | 0.059 | 0.229 |
V S | ||||
Latent | <0.001 | 0.019 | <0.001 | 0.071 |
Data‐scale | <0.001 | <0.001 | <0.001 | <0.001 |
ICCS | ||||
Latent | <0.001 | 0.009 | <0.001 | 0.034 |
Data‐scale | <0.001 | 0.002 | <0.001 | 0.008 |
Note: Values in brackets are 95% credible intervals. “Sex” indicates difference in females relative to males; “Age” is the effect in years; “IR” is an individual's internal relatedness value; “Season” is the effect of breeding season relative to nonbreeding; and Age*IR is the interaction. Variance component estimates (for additive genetic variance V A and shared environment variance V S), heritability (h 2) and the proportion of variance attributed to a shared environment effect (ICCS) are all presented on both latent and observed data‐scale. Parameters estimates were converted to the observed data‐scale using the QG glmm package (see Section 2 for details of models). N = 324 individuals.