Epidemiology of Subarachnoid Hemorrhage in Isolated Islands in Japan: A Population-based Study in the Miyako Islands by Naoki WAKUTA, Kenji FUKUDA, Masaki TAKAHARA, Satoshi YAMAMOTO, Hisatomi ARIMA, Eiji MOTONAGA, Tooru INOUE

“…The Miyako Islands (with a population of approximately 50,000) are located in southwestern Japan, with a subtropical oceanic climate. …”
Get full text

Description of a New Cruranthura Species from the Miyako Islands, Japan, with Its DNA Barcode (Isopoda: Anthuroidea: Paranthuridae) by Shoki Shiraki, Keiichi Kakui

“…We describe Cruranthura viridis sp. nov. based on four specimens collected from the subtidal zone near Irabu Island, Miyako Islands, Okinawa, Japan. This species differs from four congeneric species in having (1) small body size (2.53–3.38 mm), (2) moss green body color, (3) eyes, (4) pleonite 1 longer than pleonite 2, (5) telson length 2.06–2.33 times telson width, (6) propodus of pereopod 1 with 6–10 inner spiniform setae, and (7) the endopods of pleopods 2–5 uniarticulate, with plumose setae. …”

First record of the terrestrial amphipod, Talitroides alluaudi (Chevreux, 1896) (Crustacea, Amphipoda, Brevitalitridae), from Japan by Tomoyuki Takahashi, Naoto Sawada, Takafumi Nakano

Subjects: Get full text

First records of the lace bug genus Lasiacantha Stål, 1873 (Hemiptera, Heteroptera, Tingidae) from Japan by Jun Souma

Subjects: Get full text

Geological history of the land area between Okinawa Jima and Miyako Jima of the Ryukyu Islands, Japan, and its phylogeographical significance for the terrestrial organisms of these... by Nana Watanabe, Kohsaku Arai, Makoto Otsubo, Mamoru Toda, Atsushi Tominaga, Shun Chiyonobu, Tokiyuki Sato, Tadahiro Ikeda, Akio Takahashi, Hidetoshi Ota, Yasufumi Iryu

“…Abstract The modern and Late Pleistocene terrestrial fauna of Miyako Jima and adjacent islands (the Miyako Islands) in the southern Ryukyu Islands, southwestern Japan, includes some endemic taxa or genetically unique populations that exclusively have closest allies in the more isolated Okinawa Jima and adjacent islands (the Okinawa Islands) than in the Yaeyama Islands, which are located southwest of the Miyako Islands with much narrower intervening straits. …”
Get full text

Millennial paleotsunami history at Minna Island, southern Ryukyu Islands, Japan by Ryosuke Fujita, Kazuhisa Goto, Yasufumi Iryu, Tomoya Abe

“…Sandy tsunami deposits of the Miyako Islands have been studied only rarely. Therefore, studying sandy tsunami deposits in the Miyako Islands is crucially important for clarifying the paleotsunami history of this region. …”
Get full text

Fecal DNA analysis coupled with the sighting records re-expanded a known distribution of dugongs in Ryukyu Islands after half a century by Hiroyuki Ozawa, Takahiro Yoshihama, Shogo Gishitomi, Natsuki Watanabe, Kotaro Ichikawa, Keiichi Sato, Kenta Watanabe, Katsuhiko Takano, Yosuke Ochiai, Hiroki Yamanaka, Atsushi Maruyama

“…Abstract DNA analysis of large herbivore feces samples collected from seagrass beds at two distant sites (Irabu Island in Miyako Islands and Kushi in Okinawa Island) in the Ryukyu Islands proved that some of these feces were from dugongs, which had been treated in recent studies as extinct in this region since the last stranding of a deceased individual in 2019. …”
Get full text

Why is <i>Trichodesmium</i> abundant in the Kuroshio? by T. Shiozaki, S. Takeda, S. Itoh, T. Kodama, X. Liu, F. Hashihama, K. Furuya

“…We performed the observations near the Miyako Islands, which form part of the Ryukyu Islands, situated along the Kuroshio, since our satellite analysis suggested that material transport could occur from the islands to the Kuroshio. …”
Get full text

Meteorological and demographic factors associated with the onset of acute appendicitis in rural islands of Japan by Shima Asano

“…With the geographical advantages, homogenous meteorological effects, and overwhelming medical data collection in the area, this study aimed to explore meteorological and demographic factors associated with acute appendicitis by focusing on the onset day of acute appendicitis. Methods: Miyako islands is in southern Japan and it has a subtropical climate. …”
Get full text

Recent Relative Sea‐Level Changes Recorded by Coral Microatolls in Southern Ryukyus Islands, Japan: Implication for the Seismic Cycle of the Megathrust by S. Debaecker, N. Feuillet, K. Satake, K. Sowa, M. Yamada, A. Watanabe, A. Saiki, J.‐M. Saurel, M. Nakamura, G. Occhipinti, T.‐L. Yu, C.‐C. Shen

“…The Meiwa tsunami impacted the coasts of the Yaeyama and Miyako islands in 1771 but its origin is still debated. …”
Get full text

RNA recombination in Hepatitis delta virus: Identification of a novel naturally occurring recombinant by Chia-Chi Lin, Chi-Ching Lee, Siao-Han Lin, Po-Jung Huang, Hsin-Pai Li, Yu-Sun Chang, Petrus Tang, Mei Chao

“…Methods: Among 237 published complete genomic sequences, 34 sequences were reported from the small and isolated Miyako Island, Japan, and belonged to the Asia-specific genotypes, HDV-2 and HDV-4 (the majority of them belonged to the known Miyako Island-specific subgroup, HDV-4M). …”
Get full text

First record of Macrobrachium mammillodactylus (Thallwitz, 1891) (Crustacea, Decapoda, Palaemonidae) from Japan by Yusuke Fuke, Tomoaki Maruyama

“…Here, we report a new record of this species from Miyako Island, in the Ryukyu Archipelago, Japan. The obtained specimens were mature, suggesting that they had overwintered. …”
Get full text

A new species of free-living marine nematode, Fotolaimus cavus sp. nov. (Nematoda, Oncholaimida, Oncholaimidae), isolated from a submarine anchialine cave in the Ryukyu Islands, so... by Daisuke Shimada, Keiichi Kakui, Yoshihisa Fujita

“…Fotolaimus cavus sp. nov. was described from a submarine anchialine cave called Akuma-no-yakata on the Shimoji Island, Miyako Island Group, Ryukyu Islands, southwestern Japan. …”
Get full text

A Longitudinal Study on the Relationship of Oral Health at 4 Years of Age with That in Adulthood by Sho Yamada, Reiko Sakashita, Mikinori Ogura, Eiko Nakanishi, Takuichi Sato

“…This longitudinal study aimed to clarify the relationship of oral health in infancy with that in adulthood among participants who were the subjects of the oral health promotion project (OHPP) conducted in Miyako Island, Okinawa Prefecture, Japan, since 1984. …”
Get full text

Delayed fracture properties of 1.8 GPa-class ultra-high strength fail-safe bolt by Yuuji KIMURA, Tadanobu INOUE, Takayuki NAKATA, Mataichi FUKUDA

“…A steel plate was fastened by the bolts on 23 April 2013, and the outdoor exposure test was started on 21 May 2013 in Miyako Island test site of Japan Weathering Test Center. …”
Get full text

Reconstruction of ocean environment time series since the late nineteenth century using sclerosponge geochemistry in the northwestern subtropical Pacific by Ryuji Asami, Taketo Matsumori, Ryuichi Shinjo, Ryu Uemura, Yuki Miyaoka, Masaru Mizuyama, Yuji Ise, Takashi Sakamaki

“…For this study, we first generated near-annual resolved stable carbon and oxygen isotope (δ13C and δ18O) and element/Ca ratios (Sr/Ca, Ba/Ca, Pb/Ca, U/Ca) time series for 1880–2015 from sclerosponge samples (Acanthochaetetes wellsi) collected at Miyako Island and Okinawa Island in the Ryukyu Islands of southwestern Japan. …”
Get full text

Groundwater Management in an Uncommon and Artificial Aquifer Based on K_c Approach and MODIS ET Products for Irrigation Assessment in a Subtropical Island by Zhenglun Yang, Changyuan Tang, Hasi Bagan, Shunichi Satake, Madoka Orimo, Koichiro Fukumoto, Guangwei Wang

“…In this paper, in a very rare and uncommonly found artificial aquifer on Miyako Island, far away from the main continent of Japan, with limited experimental results of evaluations of crop water requirement, MODIS ET together with crop ET_c estimated from K_c coefficient from the nearest island were compared to determine the reliability of the MODIS ET and FAO-56-based ET_c value. …”
Get full text