Mating success and sexual selection in a pelagic copepod, Temora longicornis: Evidence from paternity analyses

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Abstract

Knowledge about mating patterns is essential for understanding and explaining rates of reproduction and genetic potential of copepods populations. The aim of this study was to examine (1) the occurrence of multiple paternity in Temora longicornis, (2) the effect of multiple paternity (if present) on the females reproductive output, and (3) whether mating is random or some individuals have a higher than average chance of fertilizing or being fertilized (super individuals). We show that multiple paternity is common in this copepod species, that females benefit from multiple matings by increased offspring production, and that a relatively small fraction of the males and females in a population account for most of the offspring production. In both males and females, mating is nonrandom. Superior individuals with a higher than average matings success were identified both among females and among males.
Original languageEnglish
JournalLimnology and Oceanography
Volume60
Issue number2
Pages (from-to)600-610
ISSN0024-3590
DOIs
Publication statusPublished - 2015

Keywords

  • genetic potential
  • mating success
  • sexual selection
  • Crustacea Arthropoda Invertebrata Animalia (Animals, Arthropods, Crustaceans, Invertebrates) - Copepoda [75110] Temora longicornis species pelagic copepod common female, male
  • 16504, Reproductive system - Physiology and biochemistry
  • 64054, Invertebrata:comparative, experimental morphology, physiology and pathology - Arthropoda: crustacea
  • Reproduction
  • Reproductive System
  • LIMNOLOGY
  • OCEANOGRAPHY
  • OITHONA-DAVISAE
  • MATE CHOICE
  • PLANKTONIC COPEPODS
  • GENETIC BENEFITS
  • POPULATION
  • CALANOIDA
  • POLYANDRY
  • SIZE
  • BEHAVIOR
  • EVOLUTION

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