3 Works

Phylogeography of Meimuna cicadas on continental and oceanic islands of Japan in the north-western Pacific region

Nobuaki Nagata, Mamoru Toda, Teiji Sota, Takashi Ohbayashi & Masami Hayashi
Islands are a challenging habitat for organisms with weak dispersal power. We aimed to elucidate how geological history, geography, accidental dispersal events and species ecology affected different colonisation and genetic divergence patterns on continental and oceanic islands among species of a cicada group, which are poor dispersers. Location: Japanese Archipelago, Ogasawara Islands, Ryukyu Archipelago. Taxon: Cicadas of the genus Meimuna (Hemiptera: Cicadidae). We performed phylogenetic analysis, divergence time estimation, and ancestral area reconstruction using two...

Inherited predation defense strategies in planthopper: Implications for biocontrol and ecosystem evolution

Jian Wen & Takatoshi Ueno
Predators can induce morphological plasticity in prey through selection driven by predation risk. However, defense plasticity is rarely reported in insects, let alone trans-generational plasticity and attention of such plasticity devoted to pest control and ecosystem evolution. Here we examined the morphological plasticity of small brown planthoppers (SBPHs), Laodelphax striatellus, in the parent or F1 generations when exposed to predation risk of a caged predator, Paederus fuscipes. We also uncovered the survival outcomes (fitness gained)...

Species divergence and repeated ancient hybridization in a Sulawesian lake system

Kazunori Yamahira, Ixchel Mandagi, Ryo Kakioka, Javier Montenegro, Hirozumi Kobayashi, Kawilarang Masengi, Nobuyuki Inomata, Atsushi Nagano, Atsushi Toyoda, Satoshi Ansai, Masatoshi Matsunami, Ryosuke Kimura, Jun Kitano & Junko Kusumi
An increasing volume of empirical studies demonstrated that hybridization between distant lineages may have promoted speciation in various taxa. However, the timing, extent, and direction of introgressive hybridization remain unknown in many cases. Here, we report a possible case in which repeated hybridization promoted divergence of Oryzias ricefishes (Adrianichthyidae) on Sulawesi, an island of Wallacea. Four Oryzias species are endemic to the Malili Lake system in central Sulawesi, which is composed of five tectonic lakes;...

Registration Year

  • 2021

Resource Types

  • Dataset


  • Kyushu University
  • University of the Ryukyus
  • Tokyo Metropolitan Agriculture and Forestry Research Center
  • Fukuoka Women's University
  • Ryukoku University
  • Sam Ratulangi University
  • Tohoku University
  • Kyoto University
  • National Institute of Genetics
  • National Museum of Nature and Science