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 20 of 49 for “"termite"”.
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Termite Inquilinism: proximate mechanisms mediating coexistence
Termite Inquilinism: proximate mechanisms mediating coexistence. Adviser: Og Francisco Fonseca de Souza. Co-advisers: Judith Korb and Rebecca Rosengaus Symbiosis, the long-term intimate relationship between different organisms, is ubiquitous. Understanding the proximate mechanisms that enable …
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Caste Regulation in the Termite, Neotermes jouteli (Banks)
<p>The southern Florida termite Neotermes jouteli (Kalotermitidae) was found to provide exceptionally suitable material for the study of caste regulation, with special reference to the regeneration of reproductive forms. It was possible to collect entire natural colonies of this termite, including …
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Research in Biological Control of the Formosan Subterranean Termite
The Formosan subterranean termite, Coptotermes formosanus Shiraki, is a worldwide distributed pest of wooden structures and living plants that causes huge economic losses. Compared to chemical pesticides, biological control may provide a more environmentally friendly and persistent method for the …
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Termitophile encounter may be costly to the termite host
Termites nests are commonly invaded by other arthropods looking for food or shelter. These invaders cohabit with the builder species forming a symbiotic association known as termitophily. As every interespecific in- teraction, symbioses are characterized in a cost-benefit perspective, which defines …
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Investigating physiological collaborations between a lower termite and its symbionts
… flavipes,</em> the eastern subterranean termite. Lower-termites, like <em>R. flavipes, </em>house symbionts from all three domains of life within their hindgut paunch. This intimate association is reflected in nearly every aspect of termite biology. Here, I investigate these physiological …
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Environmental Influences on Subterranean Termite Foraging Behavior and Bait Acceptance
… conditions. In the laboratory, subterranean termites built significantly longer tunnels adjacent to cellulosic guidelines than plastic guidelines. In the field, all guideline materials were equally effective at directing tunneling activity. Reticulitermes spp. workers were tested to determine …
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Comparison of Subterranean Termite (Rhinotermitidae: Reticulitermes) Gut Bacterial Diversity Within and Between Colonies and to Other Termite Species Using Molecular Techniques (ARDRA and 16S rRNA Gene Sequencing)
Termites are known to harbor within their gut a diverse assemblage of symbiotic microorganisms. Little work has been done, however, to describe the diversity and function of the bacteria in the economically important eastern subterranean termite, Reticulitermes flavipes. The first object of this …
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The Termite Digestome: Understanding the Digestive Physiology Involved in Lignocellulosic Biomass Degradation
… was to advance the understanding of lower termite digestive physiology and discover potential biocatalysts that can aid in the degradation of lignocellulosic biomass. Various protein characterization and gene expression methods were used throughout this research in order to accomplish these …
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The geochemistry of fossil termite nests in Calitzdorp, Western Cape, South Africa
Termites alter soil profiles by gathering nutrient-rich materials to construct their nests, known as termitaria. Certain termite species also fortify their termitaria using a combination of saliva and excrement (frass), resulting in geochemically distinct termitaria relative to the host soils. The …
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Endokrine Signale in der Kastendetermination der ursprünglichen Termite Mastotermes darwiniensis Froggatt (Isoptera: Mastotermitidae)
Als „ecosystem engineers“ sind Termiten in subtropischen und tropischen Ökosystemen von wichtiger ökologischer Bedeutung. Gleichzeitig gelten einige Termitenarten als Bauholz- und Agrarschädlinge, die weltweit vorkommen und enorme Schäden anrichten können. Für die Entwicklung effizienter und …
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The Response of The Eastern Subterranean Termite, Reticulitermes Flavipes(kollar), to Certain Insecticides
Made available in DSpace on 2014-12-05T21:33:57Z (GMT). No. of bitstreams: 1 0019857.pdf: 6238854 bytes, checksum: 61e6af92490d4393b7e324147c8eb81f (MD5) Previous issue date: 1956
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Investigating the actinomycete diversity inside the hindgut of an indigenous termite, Microhodotermes viator
… a cellulolytic actinomycete inside the gut of a termite, there has been considerable interest in the metabolic abilities and the diversity of these bacteria within this complex environment. However, until fairly recently, most investigations of termite hindguts involved the higher termites from …
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Contesting the termite hypothesis for the origins of heuweltjies in Clanwilliam, South Africa
… termitaria, belonging to the southern harvester termite Microhodotermes viator. Our idea was to use rocks and stone layer profiles to determine approximate ages of the heuweltjies as well as to gather evidence to either support or refute the termite hypothesis. We excavated ten mounds in …
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Hexaflumuron Efficiency and Impact on Subterranean Termite (Reticulitermes spp.) (Isoptera: Rhinotermitidae) Gut Protozoa
The effect of competing food sources on termite consumption of hexaflumuron bait and subsequent mortality was examined. Also, the effect of hexaflumuron on the termite gut fauna was evaluated to determine if hexaflumuron could kill termites via a secondary mode of action. Hexaflumuron consumption …
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Program participants' knowledge and perceptions of effectiveness of the French Quarter Formosan Termite Program
… the effectiveness of the French Quarter Formosan Termite Program. The management of the Formosan subterranean termite is critical to the economic well-being of not only Louisiana, but the U.S. Estimates of property damage, repairs, and control measures exceed $1 billion per year in the U.S., of …
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Sociogenetic investigation of the southern harvester termite, Microhodotermes viator, via genetic and behavioural bioassays
… population structure of the southern harvester termite, Microhodotermes viator (Family: Hodotermitidae), by assessing the genetic state and behavioural interactions within and between twelve colonies, from four areas across the Western Cape of South Africa. This study also critically debates the …
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Factors Affecting Nitrogen Fixation Rates in Termites (Isoptera: Rhinotermitidae: <i>Reticulitermes</i>) and Termite Nitrogen Contributions of Forest Ecosystems
<p>Termites host symbiotic bacteria that fix atmospheric nitrogen, which makes termites important in the biogeochemical cycling of nitrogen in ecosystems. The objective of this study was to estimate annual nitrogen contributions by termites by examining seasonal rates of nitrogen fixation, seasonal …
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The "New" sounds of the slap-of-the-stick : Termite Terrace (1937-1943) and the slapstick tradition
… -Looney Tunes and Merrie Melodies- made at Termite Terrace between 1937 and 1943 embody the slapstick tradition, reinvigorate it, and transform it. The thesis explains the production processes (technologies and practices) that led up to the creation of an energetic audiovisual rhythm and the …
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The effect of Moringa Oleifera leaves and termite (Isoptera) powders on nutritional and sensory properties of an instant-maize porridge
… health conditions. Moringa oleifera (MO) and termite (Isoptera spp.) are known to contain a substantially high amount of protein. The aim of this study was to determine the effect of powders from MO leaves and termite on the nutritional and sensory properties of instant-maize porridge. …
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Nível de infestação e controle de cupins de pastagens no município de Areia-PB.
… source of food for many types of herbivores. The termite mound are considered major pests in pastures, because in addition to being distributed in large areas, nests hinder the cultural and aggravate the degradation process. The aim of the study was to determine the level of infestation, identify …
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