Table 4.

Results of MCMCglmm models with nest type as a fixed factor, the bird phylogeny as a random factor and the antimicrobial activity (average values of the width of antagonistic halos when tested against each of the nine indicator bacteria), antimicrobial range (Shannon index of the antimicrobial activity), and bacterial density as dependent variables.

		Lower 95% CI	Upper 95% CI	ESS Lower 95% CI	ESS Upper 95% CI	Autocorr Lower 95% CI	Autocorr Upper 95% CI	(z-score) Lower 95% CI	(z-score) Upper 95% CI	pMCMC (−95%CI)	pMCMC (+95%CI)
Adults	Antimicrobial activity
	Nest type	−0.374	0.018	8960.682	9120.342	−0.002	0.002	−0.337	0.049	0.072	0.074
	heritability	0.012	0.354
	Antimicrobial range
	Nest type	−1.358	−0.288	9012.492	9124.574	−0.004	0	−0.308	0.054	0.006	0.006
	heritability	0.07	0.53
	Bacterial density
	Nest type	−0.164	−0.002	8966.204	9061.441	−0.001	0.003	−0.254	0.2	0.045	0.047
	heritability	0.012	0.28
Nestlings	Antimicrobial activity
	Nest type	−0.128	0.155	8839.062	9037.088	0	0.005	−0.109	0.25	0.876	0.886
	heritability	0.034	0.514
	Antimicrobial range
	Nest type	−0.805	0.205	8948.682	9050.966	−0.002	0.002	−0.119	0.275	0.222	0.227
	heritability	0.178	0.68
	Bacterial density
	Nest type	−0.314	−0.065	8932.945	9032.842	−0.001	0.003	−0.319	0.097	0.006	0.006
	heritability	0.17	0.705

The average of the 100 trees was calculated for each factor, as well as the 95% CI calculated as the lower and upper values for 95% Credibility Intervals of each estimate. Values in bold are statistically significant.