Front Cover

Many ants prey on spiders, suggesting that web-building spiders may avoid micro-locations near ant colonies or frequented by foraging ants. Here we tested the hypothesis that ant-derived semiochemicals deter synanthropic spiders. To generate stimuli, we exposed filter paper for 12 h to workers of European fire ants, Myrmica rubra, black garden ants, Lasius niger, or western carpenter ants, Camponotus modoc , and then offered select urban spiders in three-chamber olfactometer bioassays a choice between ant-exposed filter paper and unexposed control filter paper. Semiochemical deposits of M. rubra , but not of L. niger or C. modoc , had a significant deterrent effect on subadults of the false black widow, Steatoda grossa, the black widow, Latrodectus hesperus , and the hobo spider, Eratigena agrestis, as well as a moderate (but statistically not significant) deterrent effect on the cross spider, Araneus diadematus . The deterrent effect caused by semiochemical deposits of M. rubra may be attributable to the aggressive nature and efficient foraging of M. rubra in its invaded North American range, exerting selection pressure on community members to recognize M. rubra semiochemicals and to avoid micro-locations occupied by M. rubra .

show abstract

“…All data are presented in the manuscript and in the electronic supplementary material [ 37 ].…”

Section: Data Accessibilitymentioning

confidence: 99%

Know your foe: synanthropic spiders are deterred by semiochemicals of European fire ants

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

Front Cover

Abstract: The cover image is based on the Behavioural Notes Dodging sexual conflict?—Sub‐adult females of a web‐building spider stay cryptic to mate‐seeking adult males, by Andreas Fischer et al. DOI: .

Cited by 1 publication

References 0 publications

Know your foe: synanthropic spiders are deterred by semiochemicals of European fire ants

Know your foe: synanthropic spiders are deterred by semiochemicals of European fire ants

Contact Info

Product

Resources

About