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 “"host choice"”.
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Mosquito odor receptor gene targets to alter vector host choice
… foraging for nectar and identifying potential hosts for a blood meal. Mosquitoes detect semiochemicals through odorant receptors, each of which interact with specific odorants. Differences in feeding behaviors have significant consequences for the vectorial capacity of Anopheles mosquitoes. …
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The Role of Visual and Olfactory Cues in Host Recognition for the Specialist Bee Genus Diadasia, and Implications for the Evolution of Host Choice
How specialist bees distinguish their host plants from co-blooming non-hosts is not well understood, but it is thought that they may be physiologically limited in their ability to recognize the majority of visual and olfactory cues presented by flowering plants. Species in the genus Diadasia …
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Intraspecific plant polyploidy effects on goldenrod insect herbivores
… (6N) races of S. altissima and assesses whether host use by seven taxonomically diverse herbivorous insect species is non-random with respect to ploidy level across this distribution. Sampling of S. altissima populations along a 400 mi longitudinal transect across Iowa and neighboring states …
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A Hitchhiker’s Guide to Invasion Biology: Describing the Ecological Mechanisms Underlying the Range Expansions of Two Ixodid Tick Species
… and increasing populations of suitable host species and tick habitat. Few empirical studies have been performed, however, investigating the ecological mechanisms underlying these range expansions. Ticks are parasitic organisms that disperse across landscape by hitchhiking on hosts, but …
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Natural Products From Functional Screening of Soil Metagenomic Libraries
… of screening is contingent upon the bacterial host being able to heterologously express genes present in library clones, and therefore the choice of host is critical in determining the natural products found. In this thesis, I explored the use of two heterologous hosts for functional screening: …
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Factors Influencing Ectoparasitism on Western Fence Lizards (Sceloporus occidentalis): Host Sex, Testosterone, Reproductive Condition, and Behavior
<p>Host-parasite relationships are one of the most common symbiotic relationships present in a diverse array of ecosystems. There are numerous factors that impact the dynamics of these relationships. Major factors that can influence the degree of parasitism include host sex, hormonal state, …