TABLE 1.

Interaction of Bergmann's rule with nest design

Nest design	β	β 95% CI	pMCMC	h 2	h 2 95% CI	Marg. R 2	Cond. R 2
(a) Latitude (n = 513 species)
Open	>−0.001	[−0.003, 0.004]	0.988	0.987	[0.967, 0.998]	0.027	0.987
Semi‐open	0.003	[−0.001, 0.006]	0.089
Enclosed	0.002	[−0.002, 0.007]	0.311
(b) Temperature (n = 515 species)
Open	−0.001	[−0.007, 0.006]	0.711	0.989	[0.972, 0.998]	0.031	0.990
Semi‐open	−0.010	[−0.017, −0.003]	0.005
Enclosed	−0.006	[−0.016, 0.004]	0.238

β/β 95% CI/pMCMC = posterior mean regression slope estimates, 95% credible intervals, and pMCMC values for body mass on (a) latitude and (b) temperature, fitted for species with different nest designs. h ²/h ² 95% CI = mean heritability (phylogenetic signal) and 95% credible intervals, marg.R ² = marginal R ², the proportion of variance in the dependent variable explained by the fixed effects, and cond. R ²  = conditional R ², the proportion of variance in the dependent variable explained by both the fixed and random (phylogenetic) effects.