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 12 of 12 for “"Larval Performance"”.
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Modeling Food Assemblage Dynamics in Western Mississippi Sound Regarding Eastern Oyster (Crassostrea virginica) Larval Performance
… particle size as a food limitation for emerging larval cohorts resulting in limiting successful recruitment into the reefs (Klein et al. 2024a,b). Utilizing ambient salinity and temperatures outlined in Klein et al. (2024a), simulated food profiles with respect to food size organized into three …
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Examining the Effects of Food Supply on Eastern Oyster (Crassostrea virginica) Larval Performance and Settlement Potential in Delaware Bay and Mississippi Sound
… maintenance and growth require sufficient larval stocks capable of timely development, growth, and successful metamorphosis, whereby larval performance and settlement potential determines the capacity for a larval cohort to effectively establish into an existing population. Exogenous …
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Host use, mutualism and parasitism in the Lycaeides butterfly complex
… ecological interactions. In the first chapter, larval performance was investigated in three species of Lycaeides butterflies and placed into the context of other already studied ecological traits that potentially contribute to reproductive isolation in this system. For the larval performance …
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Investigation of the Microbiome of a Recirculating Aquaculture System (RAS) for Crassostrea virginica Larvae
… facet of RASs is the water microbiome. Oyster larval microbiomes are shaped by their aquatic microbiomes. Understanding the dynamics of and the factors shaping RAS microbiome may provide insights to how the microbiome can be a tool for optimizing larval production. This study’s goals were to …
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The influence of intraspecific variation in host plants on arthropod and fungal endophyte communities
… in alfalfa (Medicago sativa) affects the larval performance and oviposition preference of the Melissa blue butterfly (Lycaeides melissa), and if among patch variation in plant suitability can explain regional colonization patterns of alfalfa by the Melissa blue. In Chapter Two, I ask how …
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Effects of Water Parameters on Container Mosquito (Diptera: Culicidae) Oviposition and Performance
… different depths and surface areas. In addition, larval performance was determined under differing depth and larvae densities. Oviposition studies showed that <em>Ae. albopictus </em>had a preference for deeper habitats (χ<sup>2</sup>= 14.2902, p= 0.0139) but did not prefer any surface areas …
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Development of integrated pest management for sugarcane borer, Diatraea saccharalis in rice
… For this objective, oviposition preference and larval performance of sugarcane borer on commonly grown rice cultivars in Louisiana were investigated. Results from the oviposition preference study revealed significant differences among cultivars. Overall females of D. saccharalis preferred …
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Mono-Oxygenase Activity and Nutritional Ecology of Larvae of the Gypsy Moth, Lymantria Dispar
… preferences: oak species are favored by all larval instars; pine may serve as an alternate host for older instar larvae, but first instar larvae suffer 100% mortality on pine (Barbosa et al., 1986). Since pine contains high concentrations of potentially toxic terpenoids, we hypothesized that …
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Bio-ecological studies of Tuta absoluta in Sudan
… a higher number of eggs laid on tomato. In the larval performance test, 88.5%, 68.5% and 3% of inoculated neonate larvae survived to the adult stage on tomato, black nightshade and French bean, respectively. Rearing host plants did not significantly affect female fecundity. Offspring (F1) of T. …
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The complex foraging strategy of the specialised gallfly Urophora cardui (Diptera: Tephritidae) for host plants (Cirsium arvense, Asteraceae)
… insect. Males and females of U. cardui use the larval host plant as rendezvous place. The males establish territories on the plant, which they defend against conspecifics. The females lay eggs into axillary buds in order to initiate gall development. Male and female body size, measured as weight …
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Incorporación de vitamina C en dietas larvarias y su implicación en el desarrollo de Solea senegalensis
… for marine fish, vitamin C, during the larval stage. The study was carried out using an important aquaculture species, the Senegalese sole. Technologies were developed that allowed controlled dosage and form of presentation of vitamin C. An important part of the thesis was devoted to …
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Predicting Multi-trophic Consequences of an Emerging Disease
… This species is also known to be the primary larval host of the palamedes swallowtail (Papilio palamedes). While infection rates and crown dieback are catastrophically high (>90%), basal resprouting is a common response in P. borbonia. The exotic Cinnamomum camphora is the only Lauraceae …