n African Zoology - Exposure to male song increases rate of egg development in the cricket - : short communication

Volume 40, Issue 2
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X
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The acoustic displays of male crickets have, so far, only been shown to have two functions: a) to attract females and / or b) to repel rival males. We examined the effect of male acoustic displays on the development of eggs in adult female <I>Gryllodes sigillatus</I>. We found that newly moulted adult females exposed to conspecific song reached their full mass after their final moult significantly sooner than females kept in acoustic isolation or females exposed to heterospecific cricket song. Females exposed to conspecific song did not, however, produce more eggs, heavier eggs or attain a greater final body mass (minus egg mass) than females kept in acoustic isolation or exposed to heterospecific song. The possible adaptive function of more rapid investment in egg development are discussed.

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