. 2010 Dec 3;5(12):e14215. doi: 10.1371/journal.pone.0014215

Table 1. Final minimal GLMs showing the photoperiod treatment effect on the area and brightness of post-molt plumage ornaments.

Response/source	Estimate	MS	F	df	P
Post-molt badge area
Intercept	1.69	2.85	13.63	1	0.0006
Pre-molt badge area	0.47	7.39	35.28	1	<0.0001
Photoperiod treatment	0.26	3.00	14.34	1	0.0005
Error		0.21		42
Final minimal model: F _2,42 = 24.53, P<0.0001, R ² = 0.54
Post-molt wing-bar area
Intercept	–0.66	0.02	1.21	1	0.28
Tarsus length	0.08	0.11	7.05	1	0.012
Pre-molt wing-bar area	0.39	0.43	27.52	1	<0.0001
Photoperiod treatment	0.04	0.05	3.16	1	0.084
Error		0.02		35
Final minimal model: F _3,35 = 11.48, P<0.0001, R ² = 0.50
Post-molt badge brightness
Intercept	96.42	445494.3	373042.9	1	<0.0001
Photoperiod treatment	0.21	2.1	1.8	1	0.19
Error		1.2		46
Final minimal model: F _1,46 = 1.77, P = 0.19, R ² = 0.04
Post-molt wing-bar brightness
Intercept	29.28	38547.87	11074.27	1	<0.0001
Photoperiod treatment	0.60	16.04	4.61	1	0.038
Error		3.48		43
Final minimal model: F _1,43 = 4.61, P = 0.038, R ² = 0.10