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Spillover of a biological control agent (Chrysolina quadrigemina) onto native St. Johnswort (Hypericum punctatum)

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dc.contributor.authorTingle, Jessica L.
dc.contributor.authorCook-Patton, Susan C.
dc.contributor.authorAgrawal, Anurag A.
dc.date.accessioned2019-08-02T13:06:54Z
dc.date.available2019-08-02T13:06:54Z
dc.date.issued2016-03-31
dc.description.abstractBiological control agents may have unintended effects on native biota, particularly species that are closely related to the target invader. Here, we explored how Chrysolina quadrigemina, a beetle introduced to control the invasive weed Hypericum perforatum, impacts native H. punctatum in Tompkins County, New York, USA. Using a suite of complementary field surveys and experimental manipulations, we examined beetle preference for native and exotic Hypericum species and whether beetle herbivory influences the spatial distribution of H. punctatum. We found that the introduced beetle readily consumes native H. punctatum in addition to its intended target, and that H. punctatum at our field sites generally occurs along forest edges despite higher performance of experimental plants in more open habitats. However, we found no evidence that the beetle limits H. punctatum to forest edge habitats.
dc.description.sponsorshipThis work was partially funded by a Howard Hughes Medical Institute fellowship to JT. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
dc.identifier.urihttps://hdl.handle.net/1813/66774
dc.language.isoen_US
dc.publisherPeerJ
dc.relation.doihttps://doi.org/10.7717/peerj.1886
dc.relation.hasversionTingle JL, Cook-Patton SC, Agrawal AA. 2016. Spillover of a biological control agent (Chrysolina quadrigemina) onto native St. Johnswort (Hypericum punctatum) PeerJ 4:e1886
dc.relation.ispartofseriesPeerJ
dc.subjectBiological control
dc.subjectHypericum, St. Johnswort
dc.subjectSt. John's Wort
dc.subjectChrysolina
dc.subjectKlamathweed beetle
dc.subjectinvasive
dc.subjectherbivory
dc.titleSpillover of a biological control agent (Chrysolina quadrigemina) onto native St. Johnswort (Hypericum punctatum)
dc.typearticle
dcterms.licensehttps://hdl.handle.net/1813/60291

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