Table 2.

Relationship between male ornamentation and oxidative stress (OXS) measured as per cent DNA damage to erythrocytes using SCGE. (Ornaments were measured in the year (n) and OXS in the year (n) and (n − 1). F-statistics are for multiple linear regressions. Effect sizes are for data that have been standardized to a mean of zero with unit variance; bold terms are significant at p < 0.05).

overall model	oxidative stress in the year n						oxidative stress in the year n−1
	inexperienced malesa			experienced malesb			experienced malesc
	r2 = 0.29, p = 0.02			r2 = 0.44, p = 0.01			r2 = 0.41, p = 0.05
	effect	F	p	effect	F	p	effect	F	p
bib size	0.02	4.7	0.04		2.6	0.13		0	0.61
bib yellow brightness		1.6	0.22	−0.04	6.7	0.02	−0.03	5.4	0.04
bib carotenoid chroma	−0.02	4.2	0.05		1.4	0.26		1.9	0.19
bib UV saturation		1.2	0.27		0.3	0.57		0	0.99
mask size		0.2	0.70		0.6	0.45		0.9	0.38
sampling date	0.03	10.1	0.004		3.2	0.09	0.03	9.2	0.01

^an = 33 males from the year 2008 and 2009.

^bn = 23 males from the year 2008 and 2009 (using most recent data for each male to avoid pseudoreplication).

^cn = 18 males from the year 2009.