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 5 of 5 for “"tri-trophic interactions"”.
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Prairie dogs, plants, and pollinators: tri-trophic interactions affect plant-insect floral visitor webs in shortgrass steppe
… describing the relative frequency of different interactions on- and off-colonies in 2004 and 2005. Over the entire study, I sampled the plant and insect communities of seven paired colony and off-colony sites on the Shortgrass Steppe Long-term Ecological Research site. On colonies, there was …
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Learning and Olfactory Processing by the Parasitic Wasp, Cotesia Congregata, In Response to Concentration of Herbivore Related Tomato Volatiles
… factor in understanding parasitoid behavior in tri-trophic interactions.</p>
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Diet Breadth Evolution and Diversification of a Generalist Insect Herbivore
… no method to measure this combined effect (tri-trophic), so I developed a new approach to calculate the fitness associated with tri-trophic interactions using bi-trophic slopes. I use the relationship between fitness associated with top-down and bottom-up forces as well as the frequency of …
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The effect of aphids in parasitoid-caterpillar-plant interactions
… considered only within the context of pairwise interactions even though a species' distribution and abundance may be determined by interactions with many species within and between trophic levels. Multiple herbivores often share the same host and may interact indirectly by altering the …
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Meccanismi di difesa e interazioni multitrofiche tra Solanum spp. e Tuta absoluta
… essere il motivo per cui nei bio-saggi olfattometrici vi era una maggiore attrattività per le piante pre-infestate rispetto a quelle sane sia per il fitofago che per il parassitoide. Questi aspetti sono supportati dai risultati dell'espressione di due geni che mostrano significativamente la …