= 1, p < 0.0001), regardless of treatment. There was a marginally significant trend towards greater variation in the amount of time it took for successfully mating pairs to reach mating stage two (spermatophore transfer) under 3 lux of artificial light (electronic supplementary material, figure S3b; Levene's test; F = 3.64, d.f. = 1, p = 0.0745).
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