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dc.contributor.authorRussell, F. Leland
dc.contributor.authorSpencer, Machale N.
dc.date.accessioned2011-09-30T17:45:00Z
dc.date.available2011-09-30T17:45:00Z
dc.date.issued2010
dc.identifier.citationF. Leland Russell and Machale N. Spencer. 2010. Combined Effects of Folivory and Neighbor Plants on Cirsium altissimum (tall thistle) rosette performance. Plant Ecology, v.208, no.1: 35–46.en_US
dc.identifier.issn1573-5052
dc.identifier.urihttp://hdl.handle.net/10057/3856
dc.identifier.urihttp://dx.doi.org/10.1007/s11258-009-9684-2
dc.descriptionAuthors copy of the article. The final publication is available at www.springerlink.com DOI: 10.1007/s11258-009-9684-2en_US
dc.description.abstractPredicting how herbivory and neighbor plant interactions combine to affect host plants is critical to explaining variation in herbivores’ impact on plant population dynamics. In a field experiment, we asked whether the combined effects of neighbor plants and folivores upon performance of tall thistle (Cirsium altissimum), a monocarpic perennial, can be predicted as the product of their individual effects (i.e. effects of neighbor plants and folivores act independently in suppressing tall thistle performance). Alternately, the combined effects of neighbor plants and folivores might be greater, indicating a synergistic interaction, or less, indicating an antagonistic interaction, than the product of their individual effects. Our experiment involved a neighbor plant clipping treatment and a folivory reduction treatment in a factorial design with manipulations applied to naturally-occurring tall thistle rosettes in restored tallgrass prairie. Clipping neighbors at the soil surface within 40 cm of tall thistle rosettes increased light availability to rosettes, rosette growth and the transition rate of 2007 rosettes to reproductive adults in 2008. Folivores’ and neighbor plants’ effects acted independently upon rosette growth. By contrast, folivory reduced the rate at which 2007 rosettes transitioned to reproductive adults in 2008 only where neighbor plants were unclipped, indicating a possible synergistic interaction of neighbor plants and folivores in suppressing tall thistle performance. Our results suggest that 1) promoting neighbor plant aboveground biomass should suppress rosette-forming weeds and 2) folivory, which reduces light acquisition by rosettes, may generate synergistic herbivory X neighbor plant interaction effects on rosettes in grasslands, where light often limits rosettes.en_US
dc.language.isoen_USen_US
dc.publisherSpringer
dc.relation.ispartofseriesPlant Ecology;208
dc.subjectFolivoryen_US
dc.subjectPlant conpetitionen_US
dc.subjectGrasslandsen_US
dc.subjectCirsiumen_US
dc.subjectPlant compensatory abilityen_US
dc.titleCombined effects of folivory and neighbor plants on Cirsium altissimum (tall thistle) rosette performanceen_US
dc.typeArticleen_US
dc.description.versionPeer reviewed
dc.rights.holderCopyright by Springer Verlag, 2010


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