Table 4 Association of duetting with predictor variables
From: Global incidence of female birdsong is predicted by territoriality and biparental care in songbirds
Response variable | Predictor variable (category) | Posterior mean | Lower 95% CI | Upper 95% CI | R̂ | Effective sample size |
|---|---|---|---|---|---|---|
No female song vs Female solo song vs Duetting | Breeding latitude | −0.075 | −0.310 | 0.156 | 1.015 | 3828 |
Log mass | 0.433 | 0.170 | 0.735 | 1.033 | 1700 | |
Sexual size dimorphism | −0.107 | −0.327 | 0.108 | 1.018 | 3155 | |
Mating sys. ( < 5% polygyny) | 0.295 | −0.298 | 0.910 | 1.011 | 5351 | |
Mating sys. (5-20% polygyny) | −0.039 | −0.618 | 0.538 | 1.008 | 7893 | |
Mating sys. (>20% polygyny) | −0.877 | −1.800 | −0.022 | 1.017 | 3360 | |
Biparental care (yes) | 0.566 | −0.434 | 1.578 | 1.028 | 2007 | |
Cooperative breeding (yes) | 0.022 | −0.352 | 0.409 | 1.011 | 5107 | |
Migration (partial) | 0.377 | −0.091 | 0.873 | 1.011 | 5476 | |
Migration (full) | 0.073 | −0.535 | 0.691 | 1.009 | 6601 | |
Territoriality (seasonal) | 0.530 | −0.092 | 1.196 | 1.012 | 5110 | |
Territoriality (year-round) | 2.925 | 2.092 | 3.972 | 1.050 | 1143 |
