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South Korea and Japan have been unwaveringly committed to a nuclear-focused energy supply system despite the contested nature of that technology and the Fukushima accident in 2011. The socio-political consequences of four nuclear-related facilities (Ulju, Gyeongju, Futaba, and Rokkasho) are explored through the lens of social peripheralisation. This framework suggests that nuclear facilities will migrate to communities that are geographically remote, economically marginal, politically powerless, culturally defensive, and environmentally degraded. Nuclear infrastructures in the four cases are imposed on peripheral regions, impairing not only the structure of local economies and political power, but also creating a discriminative structure in terms of social and environmental inequality. Peripheralisation suggests a deeper dynamic by which pro-nuclear attitudes become ‘locked in’ socially and culturally so that communities come to depend on the very processes that made them peripheral. Community dynamics, subnational struggles, and contests over local power relations may determine the future of nuclear power. [ABSTRACT FROM AUTHOR]

This study investigates long‐term trends in tropical cyclones (TCs) over the extratropical western North Pacific (WNP) over a period of 35 years (1982–2016). The area analyzed extended across 30–45°N and 120–150°E, including the regions of Korea and Japan that were seriously affected by TCs. The northward migration of TCs over the WNP to the mid‐latitudes showed a sharp increase in early fall. In addition, the duration of TCs over the WNP that migrated northwards showed an increase, specifically in early to mid‐September. Therefore, more recently, TC tracks have been observed to significantly extend into the mid‐latitudes. The recent northward extension of TC tracks over the WNP in early fall was observed to be associated with changes in environmental conditions that were favorable for TC activities, including an increase in sea surface temperature (SST), decrease in vertical wind shear, expansion of subtropical highs, strong easterly steering winds, and an increase in relative vorticity. In contrast, northward migrations of TCs to Korea and Japan showed a decline in late August, because of the presence of unfavorable environmental conditions for TC activities. These changes in environmental conditions, such as SST and vertical wind shear, can be partially associated with the Pacific decadal oscillation. [ABSTRACT FROM AUTHOR]

The spotted-wing drosophila (SWD), Drosophila suzukii (Diptera: Drosophilidae), is an economically damaging pest that feeds on most thin-skinned fruits. It was originally native to a few Asian countries, including Korea, but is now found in North America and Europe. In this study, we sequenced portions of the mitochondrial (mt) COI and ND4 genes from a total of 195 individuals collected mainly from Korea. We then combined GenBank-registered COI sequences from all ancestral-range and introduced-range populations with our own COI data to assess the worldwide diversity, divergence, and relatedness of SWD haplotypes. A total of 139 haplotypes were obtained from the concatenated COI and ND4 sequences. Most haplotypes were confined to single localities, but 12 of them were found in more than two localities, and one haplotype (SWDCN61) was found from Korea to Canada. A dataset combining GenBank sequences with our own data identified a total of 94 worldwide COI haplotypes with a maximum sequence divergence (MSD) of 5.433% (32 bp). Although most haplotypes were found in only a single country, a few haplotypes were found commonly in China, Korea, and Japan; these occurred at a higher frequency and were often involved in introductions. A rough estimate of genetic diversity in each country showed higher diversity in ancestral distributional ranges, but the invasion over Asian countries seems to have been substantial because haplotype diversity was only 2.35 to 3.97-fold lower in the U.S.A, Canada, and Italy than that in the populations' ancestral ranges.