Fig. 6From: The effects of sun exposure on carotenoid accumulation and oxidative stress in the retina of the House Finch (Haemorhous mexicanus) a Mean ± SE retinal carotenoid concentration of unsupplemented male house finches in experiments 1 and 2. Carotenoid types abbreviated as in Fig. 3. b Mean ± SE plasma carotenoid concentrations of unsupplemented male house finches in experiments one and two at the conclusion (week 8) of each studyBack to article page