Model | |||||||||||||

Prob. LBS^{*} > 0 | LBS^{*} when >0 | Prob. LBS^{*} > 0 | LBS^{*} when >0 | ||||||||||

No. | Trait | β | SE | P | β | SE | P | β | SE | P | β | SE | P |

M12 | Female LBS | −13.7 | (6.20) | 0.02 | −0.08 | (1.86) | 0.98 | −16.8 | (4.69) | <0.001 | −2.12 | (1.44) | 0.13 |

M13 | Female LRS | −14.2 | (6.77) | 0.03 | −9.59 | (3.78) | 0.003 | −18.7 | (5.62) | <0.001 | −4.13 | (2.07) | 0.05 |

M14 | Male LBS | −31.7 | (11.8) | <0.001 | −23.3 | (13.0) | 0.06 | −18.6 | (5.25) | 0.001 | −14.9 | (3.92) | <0.001 |

The models simultaneously estimate the effect of inbreeding coefficients on the probability of breeding (“Prob. LBS > 0,” binomial part) and on the number of offspring, conditional on having at least one offspring (“LBS when > 0,” truncated Poisson part). Significant effects (

*P*≤ 0.05) are indicated in bold. The estimates for the random effects in each model are given in Table S3. Sample sizes ranged from 384 to 458 (see Table S2).↵* LRS, rather than LBS, is used for M13.