The role of climate factors in geographic variation in body mass and wing length in a passerine bird

Table 2 Coefficients of averaged models explaining body mass and wing length (male and female) in relation to climate factors

Variable	Factor	Estimate	SE	P value	Lower CI	Upper CI	Relative importance
Body mass
	(Intercept)	24.181	2.493	<0.001	19.287	29.075
	AP	−0.008	0.001	<0.001	−0.010	−0.005	1.00
	SUN	0.002	0.001	0.001	0.001	0.003	0.96
	PRC	0.001	0.001	0.453	0.0004	0.003	0.54
Wing length
Male	(Intercept)	57.864	4.750	<0.001	48.517	67.211
	SUN	0.002	0.001	0.018	0.001	0.004	0.97
	WS	−0.740	0.428	0.085	−1.537	−0.141	0.88
	RH	−0.099	0.052	0.057	−0.182	−0.051	0.85
	AP	−0.004	0.003	0.149	−0.009	<0.001	0.84
	PRC	0.002	0.001	0.256	0.000	0.005	0.68
	MAT	0.022	0.054	0.688	0.054	0.229	0.15
Female	(Intercept)	66.425	2.666	<0.001	61.158	71.693
	RH	−0.130	0.060	0.030	−0.248	−0.012	1.00
	AP	−0.006	0.003	0.063	−0.012	−0.003	0.85
	PRC	0.001	0.002	0.502	−0.001	0.007	0.47
	WS	−0.376	0.529	0.479	−1.798	0.118	0.45
	MAT	−0.035	0.089	0.691	−0.384	−0.084	0.15

Estimate average model coefficients, SE unconditional standard errors, Lower CI and Upper CI the 95% confidence limits, AP air pressure, PRC annual precipitation, SUN annual sunshine hours, RH relative humidity, WS annual average wind speed, MAT mean annual temperature
More information for top-ranked models are shown in Additional file 1: Table S3

ISSN: 2053-7166