Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Defense traits"”.
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A Tale of Three Resources: The Influence of Multiple Resources on Plant-Herbivore Interactions
… herbivore impact on plant biomass, and plant traits, using both theoretical and empirical methods. As none of the existing hypotheses account for the effects of multiple resource limitation, I developed a novel theoretical model to predict the response of herbivore abundance and impact on …
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Investigating Damage, Genetic Correlations, and Natural Selection to Understand Multiple Plant Defenses in Passiflora incarnata
… commonly produce multiple, seemingly redundant defenses, but the reasons for this are poorly understood. The specificity of defenses to particular herbivores could drive investment in multiple defenses. Alternatively, genetic correlations between defenses could lead to their joint expression, …
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An Experimental Assessment of Soil-Based Habitat Partitioning in Understory Palms
… species composition and the functional traits that allow species to regenerate, grow and reproduce. My dissertation research established patterns of understory palm community assembly and functional traits in relation to soil gradients in lower montane forests in western Panama and then …
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NO SIMPLE TRADEOFFS: CENTAUREA PLANTS FROM AMERICA ARE BETTER COMPETITORS AND DEFENDERS THAN PLANTS FROM THE NATIVE RANGE
… potential for novel allelopathic or herbivore defense biochemicals as a potential alternative mechanism to tradeoff-driven evolution of increased competitive ability in invasive plants by comparing growth, reproduction, competitive effect and response, and defense capabilities of invasive North …
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NO SIMPLE TRADEOFFS: CENTAUREA PLANTS FROM AMERICA ARE BETTER COMPETITORS AND DEFENDERS THAN PLANTS FROM THE NATIVE RANGE
… potential for novel allelopathic or herbivore defense biochemicals as a potential alternative mechanism to tradeoff-driven evolution of increased competitive ability in invasive plants by comparing growth, reproduction, competitive effect and response, and defense capabilities of invasive North …
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Mechanisms Promoting Spatial and Temporal Variability in Plant Defense
Mechanisms responsible for the diversity of plant defenses in natural populations are poorly understood. This dissertation examines how environmental heterogeneity and succession influence the distribution, expression, and adaptive value of resistance and tolerance of goldenrod (Solidago …
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Consequences of drought, flooding, and insect herbivory on the distributions of closely related willow and poplar (Salicaceae) species across hydrologic gradients in Minnesota wetlands
… environmental gradients. Second, functional traits can be used to infer the community assembly processes underlying species diversity patterns, as differences in performance responses between species are caused by differences in relevant traits. Last, closely related species tend to (but not …