title: Long-duration whirling of Pholcus phalangioides (Araneae, Pholcidae) is specifically elicited by Salticid spiders.
abstract: Long-duration whirling (gyrating of the body during several hours a day) was shown by the pholcid spider Pholcus phalangioides to salticid spiders and hardly ever to predatory spiders from eight other families in laboratory arenas. Long-duration whirling has not been reported so far, in contrast to short-duration whirling lasting less than a few minutes. Long-duration whirling may have the anti-predatory function of disturbing continual visual fixation of prey in attacking salticids, in contrast to short-duration whirling that has been demonstrated to favour survival of pholcids in the presence of all sorts of predatory spiders.
authors.affiliation: Swammerdam Institute for Lifesciences, University of Amsterdam, Kruislaan 320, 1098 SM, Amsterdam, The Netherlands
authors.forename: B A.
authors.initials: BA
authors.lastname: Heuts
authors.forename: M
authors.initials: M
authors.lastname: Witteveldt
authors.forename: L M.
authors.initials: LM
authors.lastname: Dionisio Pires
authors.forename: F
authors.initials: F
authors.lastname: van Wageningen