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.
Results
Showing 1 to 20 of 20 for “"host selection"”.
-
Host Attraction and Host Selection in the Family Corethrellidae (Wood And Borkent) (Diptera)
… wing-beat frequency. For the first time, the hosts of corethrellids were identified to species based on blood meal analysis. Using flies collected over six years at two locations in the SE USA, the host species data were compared to potential host abundance. Host feeding patterns did not …
-
Genetics and Reproductive Isolation of Rhagoletis Flies (Fruit Fly, Eclosion, Speciation, Electrophoresis, Host Selection)
… of sympatric speciation through divergence in host plant association. Despite the attention given to and the controversy engendered by the biology of these flies, both by applied entomologists concerned with the flies' status as agricultural pests and by evolutionary biologists interested in …
-
Induction and Host-Selection Behavior in the Soybean Looper, Pseudoplusia Includens, Walker (Lepidoptera: Plusiinae)
Made available in DSpace on 2014-12-14T07:04:05Z (GMT). No. of bitstreams: 1 7913497.pdf: 5392836 bytes, checksum: 517ad8543653ead544a102134e503253 (MD5) Previous issue date: 1978
-
The Spectral Sensitivity of The Greenhouse Whitefly, Trialeurodes Vaporariorum (Westwood), and Its Biological Significance in Host Selection
Made available in DSpace on 2014-12-11T18:05:43Z (GMT). No. of bitstreams: 1 7317660.pdf: 5909742 bytes, checksum: 1de6ad2e74f7f56d471a3f5d8dc0ba76 (MD5) Previous issue date: 1973
-
Inferring Determinants of Viral Transmission using Short-Read Sequence Data
… must not only be able to grow within an infected host, but also transmit to found new infections. In this thesis, I present a new population genetic framework generating insights into viral transmission events based upon genome sequence data collected before and after transmission. Previous …
-
Population Genetics and Host Specificity of a Rare Parasitic Plant, Cuscuta harperi
… range; it is also exhibits a high level of host specificity, parasitizing only a few select species. <em>C. harperi</em> is of conservation concern due to small population sizes and threats from habitat degradation.</p> <p>Here we develop genetic markers to address questions regarding …
-
Defining functional microbiomes of wheat (Triticum aestivum) and maize (Zea mays), under regenerative management practices, in South Africa
… canola-wheat rotations were the most distinct. Host selection and drought conditions emerged as the primary determinants of microbiome differentiation. These findings suggest that short-term rotational changes may exert weaker selective pressures on microbial communities than host-driven or …
-
An investigation into the host-parasite interrelationship between Common Swifts and Hippoboscid Louse-Flies
… relationship where resource transfer between a host and parasite occurs. This results in the sub-optimal expression of host life-history traits and a consequent reduction in host fitness. The Louse Fly, Crataerina pallida (Diptera: Hippoboscidae), is a monoxenous haematophagous nest ectoparasite …
-
Pheromone communication and host-finding behaviour of Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae)
… and in tandem, to elucidate aspects of host finding behaviour, pheromone communication system and interactions between these two. The role of host volatiles in primary host selection was tested for several different commodities. For the first time it was shown that R. dominica adults are …
-
Spruce bark beetle disturbance in the forest-tundra ecotones of southwest Yukon: impacts and predisposing factors
… medium-mortality site. Results demonstrated that hosts selected by spruce bark beetle were typically large individuals growing in dense stands, with spruce density and basal area dictating the extent of stand mortality. The majority of mortality was concentrated at – though not exclusive to – …
-
Why Mosquitoes Bite Some People More Than Others: Metabolic Correlates of Human Attraction in AEDES AEGYPTI
… the basic act of how mosquitoes choose one human host over another is poorly understood. Many previous studies on differential attraction have focused on small, homogenous subject populations and addressed a single hypothesis. We took the opposite strategy and studied a large, diverse 150-subject …
-
Effects of host stored resources on bark beetle-fungal-conifer interactions
… to conifers worldwide, but the degree to which host stored resources influence tree-beetle-fungal interactions has not been investigated. In western North America, the range of the mountain pine beetle (Dendroctonus ponderosae) has expanded from lower elevation Pinus contorta (lodgepole pine) …
-
Effects of host stored resources on bark beetle-fungal-conifer interactions
… to conifers worldwide, but the degree to which host stored resources influence tree-beetle-fungal interactions has not been investigated. In western North America, the range of the mountain pine beetle (Dendroctonus ponderosae) has expanded from lower elevation Pinus contorta (lodgepole pine) …
-
Impact of Spatial Distance and Pollinators on Floral and Fruit Bacterial Communities of Solanum carolinense
… and flower communities, other factors such as host selection (e.g., secondary compounds in fruit) also likely play an important role in shaping bacterial communities.
-
A new sabellid that infests the shells of molluscs and its implications for abalone mariculture
… natural levels of infestation. Different host selection on the East Coast of South Africa suggests that there may be more than one species of worm. Larvae disperse by crawling and settle at the growing edge of the shell underneath the mantle. Although the larvae are benthic, there is …
-
Defining the functional response of Mycobacterium sp. infected macrophages to structural variants of Interferon gamma (IFN-y)
… underscore the importance of expression-host selection when producing structurally representative recombinant cytokines. Overall, this study supports an ensemble-based view of human IFN-γ as a conformationally heterogeneous cytokine whose structural organisation is sensitive to sequence …
-
Reproductive success of a generalist brood parasite predicts the rate of parasitism in the subsequent year
… cowbirds (Molothrus ater) rely solely on hosts to raise their young. Although cowbirds parasitize 200+ species, recent evidence suggests that females avoid unsuitable hosts that either reject parasitic eggs or provide incompatible parental care. Female cowbirds may be able to improve their …
-
Systems metabolic engineering through application of genome-scale metabolic flux modeling
… first time, a computational guide for optimal host selection (for a specific metabolic engineering problem) and culture media formulation design to achieve the solution. Results showed that (i) L-valine improves isobutanol production by Bacillus subtilis, (ii) cellobiose increases ethanol …
-
Performance models for parallel applications under failures
Due to the growing size of compute clusters, large scale parallel applications increasingly have to deal with hardware malfunctions and other failure scenarios during execution. The overall goal of this research is to get good performance of parallel applications despite failures. This dissertation …
-
BEHAVIORAL ECOLOGY OF ORYZOMYS PALUSTRIS (MARSH RICE RAT) IN COASTAL TEXAS: IMPLICATIONS FOR THE LIFE-HISTORY STRATEGY OF BAYOU VIRUS (BAYV)
… to identify and characterize other potential, host-hantavirus associations. Since then, more than 21 pathogenic, hantaviral genotypes have been discovered that can induce human hantavirus pulmonary syndrome (HPS), with symptoms ranging from proteinuria to pulmonary edema to massive …