Male courtship vibrations delay predatory behaviour in female spiders

Anne E. Wignall*, Marie E. Herberstein

*Corresponding author for this work

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

During courtship, individuals transfer information about identity, mating status and quality. However, male web-building spiders face a significant problem: how to begin courting female spiders without being mistaken for prey? Male Argiope spiders generate distinctive courtship vibrations (shudders) when entering a female's web. We tested whether courtship shudders delay female predatory behaviour, even when live prey is present in the web. We presented a live cricket to females during playbacks of shudder vibrations, or white noise, and compared female responses to a control in which we presented a live cricket with no playback vibrations. Females were much slower to respond to crickets during playback of shudder vibrations. Shudder vibrations also delayed female predatory behaviour in a related spider species, showing that these vibrations do not simply function for species identity. These results suggest that male web-building spiders employ a phylogenetically conserved vibratory signal to ameliorate the risk of pre-copulatory cannibalism.

Original languageEnglish
Article number3557
Pages (from-to)1-5
Number of pages5
JournalScientific Reports
Volume3
DOIs
Publication statusPublished - 19 Dec 2013

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