Host plant mediates foraging behavior and mutual interference among adult Stethorus gilvifrons (Coleoptera: Coccinellidae) preying on Tetranychus urticae

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dc.contributor.author Bayoumy, Mohamed H.
dc.contributor.author Osman, Mohamed A.
dc.contributor.author Michaud, J. P.
dc.date.accessioned 2015-03-25T20:17:41Z
dc.date.available 2015-03-25T20:17:41Z
dc.date.issued 2014-10-01
dc.identifier.uri http://hdl.handle.net/2097/18898
dc.description Citation: Bayoumy, M. H., Osman, M. A., & Michaud, J. P. (2014). Host plant mediates foraging behavior and mutual interference among adult Stethorus gilvifrons (Coleoptera: Coccinellidae) preying on Tetranychus urticae. Retrieved from http://krex.ksu.edu
dc.description.abstract Physical plant characteristics can influence predator foraging and their behavioral responses to each other. This study examined the searching efficiency and functional response of adult female Stethorus gilvifrons Mulsant foraging for Tetranychus urticae Koch (Acari: Tetranychidae) on castor bean, common bean, and cucumber leaves. Experiments conducted on leaf discs in arenas for 12 h revealed a type II functional response for S. gilvifrons on all host plants. Per capita searching efficiency and killing power decreased with increasing predator density on all plants, but most notably on common bean, the plant with the highest prey consumption rates, due to greater mutual interference. Attack rates were highest on common bean and lowest on castor bean, whereas handling times were shortest on common bean and longest on cucumber, such that the daily predation rate was maximal on common bean. Host plant interacted with predator and prey densities to affect searching efficiency and functional response, the differences in mite consumption among host plants increasing with predator and prey densities. The waxy layers of castor bean leaves and high trichome counts of cucumber leaves appeared to reduce predator foraging efficiency. Thus, the efficacy of S. gilvifrons against T. urticae is likely to be greatest on plants such as Phaeseolus vulgaris L. that have relatively smooth leaves. en_US
dc.language.iso en_US en_US
dc.relation.uri https://doi.org/10.1603/EN14134 en_US
dc.rights This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Environmental Entomology following peer review. The definitive publisher-authenticated version [Bayoumy, M. H., Osman, M. A., & Michaud, J. P. (2014). Host plant mediates foraging behavior and mutual interference among adult Stethorus gilvifrons (Coleoptera: Coccinellidae) preying on Tetranychus urticae (Acari: Tetranychidae). Environmental Entomology, 43(5), 1309-1318.] is available online at: http://ee.oxfordjournals.org/content/43/5/1309 en_US
dc.rights.uri https://academic.oup.com/journals/pages/self_archiving_policy_b
dc.subject Area of discovery en_US
dc.subject Attack rate en_US
dc.subject Density-dependence en_US
dc.subject Functional response en_US
dc.subject Handling time en_US
dc.title Host plant mediates foraging behavior and mutual interference among adult Stethorus gilvifrons (Coleoptera: Coccinellidae) preying on Tetranychus urticae en_US
dc.title.alternative Host plant mediates foraging behavior and mutual interference among adult Stethorus gilvifrons (Coleoptera: Coccinellidae) preying on Tetranychus urticae (Acari: Tetranychidae) en_US
dc.type Text en_US
dc.date.published 2014 en_US
dc.citation.doi 10.1603/EN14134 en_US
dc.citation.epage 1318 en_US
dc.citation.issn 1938-2936
dc.citation.issue 5 en_US
dc.citation.jtitle Environmental Entomology en_US
dc.citation.spage 1309 en_US
dc.citation.volume 43 en_US
dc.citation Bayoumy, M. H., Osman, M. A., & Michaud, J. P. (2014). Host plant mediates foraging behavior and mutual interference among adult Stethorus gilvifrons (Coleoptera: Coccinellidae) preying on Tetranychus urticae. Retrieved from http://krex.ksu.edu
dc.contributor.authoreid jpmi en_US
dc.description.version Article: Accepted Manuscript


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