Table 3 Association of female birdsong with duetting

From: Global incidence of female birdsong is predicted by territoriality and biparental care in songbirds

Predictor variable

Response variable

Posterior mean

Lower 95% CI

Upper 95% CI

R̂

Effective sample size

Duet (yes)

Incidence

2.685

2.178

3.355

1.067

863

 

Elaboration

1.885

1.495

2.374

1.033

1684

 

Length

2.685

2.178

3.355

1.067

863

  1. Bayesian phylogenetic model results produced in brms show that duet presence/absence is associated with each of the three female song metrics. Associations were assessed based on posterior distributions, with variables for which their 95% confidence intervals that do not cross zero in bold.
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