Forewing-size differences among male individuals of the pale grass blue Z. maha caught in May 2011. (A) One-dimensional scatter gram including the Shiroishi samples, which were not included in the box plot in the original paper . The distribution in Fukushima is shaded in light pink. The p-values (after Holm correction) obtained by t-test (Fukushima versus the rest) were shown. We confirmed the equality of variance using the F test and the normality using the Shapiro-Wilk test and the Kolmogorov-Smirnov test. (B) A relationship between latitude of collection locality and forewing size. Each plot represents mean ± SD. Localities close to the nuclear power plant (NPP) showed smaller forewing size.
Hiyama et al. BMC Evolutionary Biology 2013 13:168 doi:10.1186/1471-2148-13-168