Table 1. Tests of associations between adult relative telomere length and fitness-related traits.

Sex	Trait	Test statistic	p	Estimate ± SE	n
Male	Wing lengtha	F1, 49 = 4.16	0.047	-0.09 ± 0.05	54
	Tarsus length	F1, 51 = 0.26	0.65	-0.007 ± 0.04	54
	Body mass	F1, 51 = 1.01	0.32	0.007 ± 0.04	54
	Chestnut band width	F1, 17 = 0.93	0.35	-0.02 ± 0.02	19
	Brightness	F1, 29 = 0.44	0.51	-0.003 ± 0.004	31
	Hue	F1, 29 = 0.03	0.87	0.001 ± 0.007	31
	Chroma	F1, 29 = 1.75	0.20	-0.47 ± 0.35	31
	Standardized heterozygosity	F1, 52 = 0.03	0.87	0.14 ± 0.24	55
	Total fertilization successb	F1, 46 = 0.001	0.97	-0.003 ± 0.009	49
Female	Wing length	F1, 38 = 2.14	0.15	0.04 ± 0.03	41
	Tarsus lengthc	F1, 37 = 0.98	0.33	0.18 ± 0.07	41
	Body mass	F1, 38 = 0.86	0.36	0.03 ± 0.05	41
	Colour score	F1, 39 = 0.42	0.52	0.02 ± 0.03	42
	Standardized heterozygosity	F1, 39 = 0.43	0.51	0.28 ± 0.30	42
	First egg dated	F1, 36 = 1.48	0.23	-0.07 ± 0.04	39
	Clutch size	F1, 35 = 0.26	0.61	-0.03 ± 0.08	38

All tests control for the effect of year (all p < 0.07) and include interaction terms for year (except male colour variables, measured in one year only) and age for each trait in the initial models. None of the p-values were significant after controlling for false discovery rate [48].

^a Interaction term wing length x male age retained in model, p = 0.09

^b Within-pair plus extra-pair paternity

^c Interaction term tarsus length x year retained in model, p = 0.08

^d Standardized between the years