As expected, we received a variety of opinions, comments, and advice on this matter from other students in our laboratory and from other professors in our university even before starting this research. Many of them discouraged us. Some worried about us because radioactive materials are hazardous to health. Some worried that our research might annoy people living in the polluted areas, the nuclear power industry, and Japanese government, implying that the research would politically dangerous. However, over and above theses considerations, we were terrified by the pollution itself and by the continuing release of radioactive materials. We are also terrified by the possibility of additional earthquakes and further breaches of the NPP. However, we convinced ourselves that we as scientists should contribute to something that provides biological truth on this issue.
Otaki, Understanding Fukushima through Butterfly Biology: Academic Freedom for Scientists and the Public
現時点でざっとヤマトシジミの論文を引用している論文を眺めて思ったこと。 大瀧グループはコンスタントに続報を出しており、低線量被曝の野外調査の結果を実験的に再現したという新規性と、（今までよく研究されてきた短期的高線量被曝でなく）長期にわたる低線量被曝の影響についての研究を刺激した点で、科学の営みとしては至極真っ当に思えます。とりわけ、雌雄モザイクのチョウはチェルノブイリ近傍でも報告されており(Dantchenko et al, 1995)、大瀧グループの発見(Hiyama et al, 2013)ともある程度の共通性はあるわけです。結局、何か反証となるような査読付き論文は見つけられませんでした。今後、別のグループがチョウの被曝実験で同様の結果を得られるかどうか、報告が待たれるところです。 要するに、鷲谷いづみ先生のコメントは現時点でも全く妥当なものです。
If the history of science teaches anything, it is humility, and no one can be faulted for failing to act on what is not known. But our grandchildren will surely blame us if they find that we understood the reality of anthropogenic climate change and failed to do anything about it. Oreskes, Science 306: 1686 (2004)
・大瀧グループの論文を引用しているものの一部 Morphological outcomes of gynandromorphism in Lycaeides butterflies (Lepidoptera: Lycaenidae) Jahner et al., J Insect Sci 15: (2015) http://www.ncbi.nlm.nih.gov/pubmed/25843591 最終段落に気になることが書いてある。ひょっとしてチョウは放射線の影響をおそろしく受け易いのかもしれない、とは考えられるわけです。
Finally, increased occurrence of gynandromorphism in butterflies has been linked with exposure to low-dose radiation (Dantchenko et al. 1995). For example, a small number of gynandromorphic pale grass blue butterflies (Zizeeria maha (Kollar)) have been found in areas within the Fukushima nuclear accident fallout area in Japan (Hiyama et al. 2013). Over 7,000 Lycaeides butterflies have been captured or reared from a number of sites across North America between 2003 and 2014; however, all six of the gynandromorphs in this study were captured or reared in the 16 mo following the Fukushima nuclear accident and none have been captured since (M.L.F., pers. obs.). Although we have no reason to link low-dose radiation exposure with the spatial and temporal concentration of gynandromorphs described in this study, it is intriguing to note that radiation from Fukushima reached the western United States 4mo prior to the first gynandromorph capture (Thakur et al. 2012).