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Related Experiment Videos

Search behaviour and mate choice by female field crickets, Gryllus integer.

Wiegmann1

  • 1Center for the Integrative Study of Animal Behavior, Indiana University

Animal Behaviour
|December 22, 1999
PubMed
Summary

Female field crickets (Gryllus integer) can recall previously encountered males but do not form spatial maps of concurrent male callers. This suggests complex mate-searching strategies in female insects.

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Area of Science:

  • Behavioral Ecology
  • Animal Communication
  • Neuroethology

Background:

  • Mate searching in females involves cognitive demands and memory recall.
  • Theoretical models suggest females can remember and return to previously sampled males.

Purpose of the Study:

  • To investigate female field cricket (Gryllus integer) mate search tactics.
  • To determine if females construct spatial representations of concurrently advertising males.
  • To assess memory recall of male calls under different presentation conditions.

Main Methods:

  • Female Gryllus integer were exposed to male calls sequentially or simultaneously in a three-arm radial maze.
  • Behavioral responses, including return to call locations and search patterns, were recorded in the absence of audible signals.

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Main Results:

  • Females exposed to sequential calls returned to the initial call location.
  • Females exposed to simultaneous calls were equally likely to move to a never-active speaker as to a previously heard call location.
  • Simultaneous call exposure led to increased searching in all maze arms and longer search times.

Conclusions:

  • Female Gryllus integer likely do not create spatial representations of concurrently advertising males.
  • Under certain conditions, female Gryllus integer can recall previously encountered males.
  • Mate-searching tactics may be more complex than simple instantaneous comparisons of calling males.