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dc.contributor.authorSpires, Sandra Elizabeth
dc.date.accessioned2014-03-03T23:24:40Z
dc.date.available2014-03-03T23:24:40Z
dc.date.issued2005-08
dc.identifier.otherspires_sandra_e_200508_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/spires_sandra_e_200508_ms
dc.identifier.urihttp://hdl.handle.net/10724/22805
dc.description.abstractHerbivore population dynamics can be influenced significantly by heterogeneity in plant quality. Birth and death rates of herbivores are influenced by plant-induced changes in parameters such as growth, survival, and fecundity. Variation in plant quality can also have a profound influence on herbivore populations through changes in rates of movement, mortality due to natural enemies, and rates of competition. We should also expect that the strength of density dependence, and herbivore population dynamics, will vary with host plant quality. This thesis examines the impact of variable plant quality on the dynamics of an insect herbivore population. This is done using both aphid population data collected from a common garden of six different species of Asclepias plants and some simple models of hypothetical populations to further explore the consequences of variable plant quality.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectAphis nerii
dc.subjectAsclepias
dc.subjectDensity dependence
dc.subjectLysiphlebus testaceipes
dc.subjectMilkweed
dc.subjectParasitism
dc.subjectPlant-insect interactions
dc.subjectPlant quality
dc.subjectPopulation dynamics
dc.subjectSpatial Scale
dc.subjectTri-trophic interactions
dc.titleVariation in plant quality and the dynamics of insect herbivore populations
dc.typeThesis
dc.description.degreeMS
dc.description.departmentEcology
dc.description.majorEcology
dc.description.advisorMark Hunter
dc.description.committeeMark Hunter
dc.description.committeeRodney Mauricio
dc.description.committeeRon Pulliam


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