An evaluation of indirect interactions between herbivore guilds: Effects of meristem miners on flower head feeders

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dc.contributor.author Jones, M. en_US
dc.contributor.author Russell, F. Leland en_US
dc.date.accessioned 2009-11-19T21:48:07Z
dc.date.available 2009-11-19T21:48:07Z
dc.date.issued 2009-05-01 en_US
dc.identifier.citation Jones, M. and F.L. Russell(2009). An Evaluation of Indirect Interactions Between Herbivore Guilds: Effects of Meristem Miners on Flower Head Feeders . In Proceedings: 5th Annual Symposium: Graduate Research and Scholarly Projects. Wichita, KS: Wichita State University, p. 116-117 en_US
dc.identifier.uri http://hdl.handle.net/10057/2282
dc.description Paper presented to the 5th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, May 1, 2009. en_US
dc.description Research completed at the Department Biological Sciences en_US
dc.description.abstract In the study of biological control of weeds, effects of insect herbivores that attack different plant organs have long been assumed to be independent events. Emerging research indicates stronger interactions between herbivore guilds than was expected historically. My research focuses on damage to apical meristems of tall thistles (Cirsium altissimum) by stem mining insects and the indirect, plant-mediated effects of this damage on flower head feeding insects. Two questions were addressed: 1) how does mining of the apical meristem affect tall thistle architecture, including number of branches and flower heads produced? 2) what influence does apical meristem mining have on the intensity of damage to the plant by flower head feeding herbivores? Forty adult tall thistles at two different sites (80 plants total) were assigned to levels of a "meristem-herbivore exclusion treatment" in April, 2008. Insecticide was applied to the apical meristem of treatment plants. Control plants were sprayed with water or were not sprayed. Apical meristem mining had significant affects on; flower heads (F2,2=45.97, p=0.021),primary stems (F=11,p <0.001) and plant height over-all (F2,4=26.39, p=0.004). There was a marginally significant effect on flower head damage, further work will be needed to understand the biological significance of this finding. en_US
dc.format.extent 111081 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en_US
dc.publisher Wichita State University. Graduate School en_US
dc.relation.ispartofseries GRASP en_US
dc.relation.ispartofseries v.5 en_US
dc.title An evaluation of indirect interactions between herbivore guilds: Effects of meristem miners on flower head feeders en_US
dc.type Conference paper en_US

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