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Table 1 Light and temperature conditions among treatment groups in experiments 1 and 2

From: The effects of sun exposure on carotenoid accumulation and oxidative stress in the retina of the House Finch (Haemorhous mexicanus)

Experiment Dates Mean day length (min) Sun exposure treatment Daily hours of direct sun exposure Mean light intensity (lux)a Min–max light intensity (lux) Mean temperature (°C)a Min–max temperature (°C)
1 7 Jan–3 Mar 2008 642.88 ± 3.69 High 8 12,746.93 ± 197.76 0–176,356 15.69 ± 0.059 1.7–49.4
Low 3 5714.55 ± 176.73 0–209,424 14.37 ± 0.047 1.5–48.4
2 10 May–5 July 2010 852.10 ± 1.44 High 8 21,561.29 ± 369.69 0–220,225 31.42 ± 0.066 11.5–56.8
Low 3 5584.77 ± 183.33 0–231,468 31.07 ± 0.061 11.9–54.9
  1. aDiffered significantly between treatment groups and experiments (t > 4.02, p < 0.0001)