Time constraints related to sexual maturation and prolonged copulation in the female-dimorphic damselfly Ischnura senegalensis

Yuma Takahashi, Mamoru Watanabe

Research output: Contribution to journalArticlepeer-review

Abstract

Time constraints are critical for reproductive success. To understand the spatiotemporal dynamics of morph frequency in the female-dimorphic damselfly Ischnura senegalensis, we compared two different morphs for two important time constraints on female reproductive output, i.e. post-emergence sexual maturation and prolonged copulation. The females of both morphs achieved sexual maturation 4-5days after emergence, suggesting that the rate of sexual mutation does not result in morph-specific fitness. The copulation durations declined with the time of onset of copulation in both morphs. Consequently, all copulations terminated at approximately 12:00hours. Because females show foraging and oviposition activity only after copulation, the copulation duration does not result in morph-specific time constraints. These two important time constraints do not account for morph-specific reproductive success and do not affect the evolutionary equilibrium of morph frequency in I. senegalensis.

Original languageEnglish
Pages (from-to)34-39
Number of pages6
JournalEntomological Science
Volume16
Issue number1
DOIs
Publication statusPublished - 2013 Jan 1

Keywords

  • Constraint
  • Copulation
  • Damselfly
  • Life history
  • Maturation
  • Polymorphism

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Insect Science

Fingerprint Dive into the research topics of 'Time constraints related to sexual maturation and prolonged copulation in the female-dimorphic damselfly Ischnura senegalensis'. Together they form a unique fingerprint.

Cite this