Comparative seascape genetics of co-distributed intertidal snails Monodonta spp. In the Japanese and Ryukyu archipelagoes

Daishi Yamazaki, Osamu Miura, Shota Uchida, Minoru Ikeda, Satoshi Chiba

Research output: Contribution to journalArticlepeer-review

Abstract

Recent molecular ecological studies have focused on how the relationships between physical and ecological factors influence marine biogeography. Comparative phylogeography using closely related species is a powerful approach to evaluate the role of ecological traits in the genetic variation of marine organisms. In the present study, we compared ecological traits and genetic variation in 3 species of the intertidal snail genus Monodonta that co-occur in the Japanese and Ryukyu archipelagoes. We found that M. labio was dominant in sheltered habitats and M. perplexa was dominant in wave-exposed habitats, while M. confusa showed no habitat specificity. This indicates that M. labio and M. perplexa are habitat specialists regarding wave exposure, while M. confusa is a generalist. M. labio and M. perplexa showed lower genetic diversity and greater genetic differentiation among populations than M. confusa. Our findings support the specialist-generalist variation hypothesis in a well-connected marine environment.

Original languageEnglish
Pages (from-to)135-146
Number of pages12
JournalMarine Ecology Progress Series
Volume657
DOIs
Publication statusPublished - 2021 Jan 7

Keywords

  • Genetic structure
  • Habitat range
  • Intertidal gastropods
  • Monodonta
  • Phylogeography
  • Sgvh
  • Specialist-generalist variation hypothesis

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology

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