High fecundity, rapid development and selfing ability in three species of viviparous land snails phaedusinae (Gastropoda: Stylommatophora: Clausiliidae) from east Asia

Anna Sulikowska-Drozd, Takahiro Hirano, Shu Ping Wu, Barna Páll-Gergely

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Life history traits are important yet understudied aspects of ecological diversification in land snail faunas. To acquire information for comparative analysis of gastropod life cycles, we conducted experimental breeding of three viviparous clausiliids from Japan and Taiwan. Under laboratory conditions, Tauphaedusa sheridani (Pfeiffer, 1866), T. tau (O. Boettger, 1877) and Stereophaedusa (Breviphaedusa) jacobiana (Pilsbry, 1902) featured similar times to complete shell growth (12-16 weeks), age of first reproduction (23-24 weeks) and annual fecundity (143-173 neonates per pair of snails). The maximum number of eggs retained in genital tract reaches nine for T. sheridani, 11 for T. tau, and seven for S. jacobiana. The ratio between average shell height of neonate and adult varied between 13.5% for T. tau, 13.9% for T. sheridani, and 16.7% for S. jacobiana. All species were able to self-fertilize. Exposure to long drought affects intrauterine embryo development in all species; additionally, it results in parent and embryo mortality in S. jacobiana. Observed differences in the structure of the egg envelope among studied species point to greater than expected differentiation of developmental processes in viviparous Phaedusinae of East Asia.

Original languageEnglish
JournalZoological Studies
Volume57
DOIs
Publication statusPublished - 2018

Keywords

  • Land snail
  • Life history
  • Parental care
  • Reproduction
  • Viviparity

ASJC Scopus subject areas

  • Animal Science and Zoology

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