Sexual inhibition in Servaea incana jumping spiders

expression and mechanisms

Research output: Contribution to conferenceAbstract

Abstract

Sexual inhibition has been studied extensively in insects but this research area remains very poorly developed in spiders. Once mated, females of many jumping spider species become sexually unreceptive and aggressive toward males but the mechanisms responsible for this sexual inhibition are unknown. We assessed the mating frequency of 88 Servaea incana (Araneae: Salticidae) females from maturation until death. Virgin females were highly receptive but sexual inhibition was induced immediately after their first copulation; females became aggressive towards their first mate and almost always rejected courtship from subsequent males. Even after experimental removal of their first and second batches of eggs (simulating predation), females very rarely remated. Given low levels of female remating, virgin females are at an extreme premium for male reproductive fitness. We discuss results for two sexual inhibition experiments in S. incana and propose mechanisms that might mediate sexual inhibition in this jumping spider. Data of population dynamics and natural history provide context to the findings of sexual inhibition experiments.
Original languageEnglish
Number of pages1
Publication statusPublished - 2013
EventAnimal Behavior Society Annual Conference (50th : 2013) - Boulder, Colorado
Duration: 28 Jul 20131 Aug 2013

Conference

ConferenceAnimal Behavior Society Annual Conference (50th : 2013)
CityBoulder, Colorado
Period28/07/131/08/13

Keywords

  • Zoology
  • Animal behavior
  • Salticidae

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    Mendez, V., & Taylor, P. (2013). Sexual inhibition in Servaea incana jumping spiders: expression and mechanisms. Abstract from Animal Behavior Society Annual Conference (50th : 2013), Boulder, Colorado, .