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 18 of 18 for “"Ixodidae"”.
-
Mounting Sex Pheromone: A Novel Pheromone Responsible for Mate Recognition in the Ixodidae
<p>Cholesterol oleate was demonstrated to be the cuticular contact sex pheromone of <em>Dermacentor variabilis</em>. This pheromone which has been termed the Mounting Sex Pheromone (MSP) was also demonstrated to be present on the surface of <em>D</em>. <em>andersoni</em>, <em>Amblyomma …
-
Genetic Structure of Amblyomma Cajennense (Acari: Ixodidae) Populations Based on Mitochondrial Gene Sequences
Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) is a common tick species that has a large geographic distribution from the southern regions of the United States (Texas), to the Caribbean Islands, Central, and South America. This tick is a vector of the agent of Brazilian spotted fever, an …
-
Genoma mitocondrial no estudo filogenético de carrapatos pertencentes às famílias Ixodidae e Argasidae
Dentro da família Ixodidae, relatos recentes descreveram que o cruzamento de carrapatos de populações do táxon Amblyomma cajennense provenientes de diferentes regiões geográficas, apresentavam desempenho reprodutivo com taxa de fertilidade reduzida, podendo este táxon englobar um complexo de …
-
Vitellogenesis in <i>Hyalomma dromedarii</i> (Acari: Ixodidae): A Model for Analysis of Endocrine Regulation in Ixodid Ticks
<p>The egg yolk proteins, vitellins, and their hemolymph precursors, vitellogenins, were characterized in the ixodid tick <em>Hyalomma dromedarii.</em> Three vitellins were identified. The high molecular weight vitellins, VN A and VN B, were composed of seven homologous molecular weight subunit …
-
A deeper look into the morphology and receptors found in the tick (Acari: Ixodidae) chemoperception structure, the Haller's organ
The Haller's organ is a sensory structure unique to ixodid ticks that assists in host seeking behaviors. Presented here are the results of a detailed comparative study of the morphology and the chemoperception gene expression of the Haller’s organ. The morphometrics study focuses on the three …
-
A checklist and taxonomic key to the ticks [Acari: Ixodidae and Argasidae] of Illinois: Establishing a baseline for research and surveillance
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
-
Polimorfismos do gene bm86 de Boophilus microplus canestrini, 1887 (acari: ixodidae) e análise da conservação genética de peptídeos integrantes da vacina sintética SBm7462
O carrapato B. microplus é considerado o principal ectoparasita para a pecuária bovina mundial. Seu controle repousa pesadamente sobre a utilização de acaricidas que a cada ano que passa se mostram menos eficientes devido a aquisição de resistência pelo parasita. Como alternativa ecologicamente …
-
Vector Potential of Two Southeastern Tick Species (Acari: Ixodidae) for a Northeastern Strain of the Lyme Disease Spirochete, <em>Borrelia burgdorferi</em> Sensu Stricto
<p>The abilities of the southeastern tick <em>Ixodes</em> <em>minor</em> Neumann and the eastern tick <em>Ixodes</em> <em>scapularis</em> Say (blacklegged tick) from the U.S., to acquire, maintain, and transmit a northeastern strain of <em>Borrelia</em> <em>burgdorferi</em> sensu stricto Johnson, …
-
Investigations of White -Tailed Deer Infestation by Ixodes Scapularis on the Illinois River, USA
… inspected for Ixodes scapularis (Say) (Acari: Ixodidae) to ascertain tick establishment along the Illinois River. A county-level study demonstrated that I. scapularis is the predominant tick in the northern portion of the Illinois River, unlike Dermacentor albipictus (Packard) (Acari: Ixodidae) …
-
Assortative Mating in <em>Ixodes Scapularis</em> (Acari: Ixodidae) Ticks? And <em>Ixodes Scapularis</em> Infest Male Deer More Often Than Female Deer at Savannah River Site, (Aiken, SC)
<p>In this study we explored the hypothesis that the mitochondrial genetic diversity observed in <em>Ixodes Scapularis</em> ticks in the Southeastern United States is maintained through assortative mating. The study of 319 couples of ticks collected in copula from deer at the Savannah River Site …
-
Exploring the Neuropeptides, Neuropeptide Receptors and Neurotransmitter Receptors in the Synganglia of Part-Fed Females of <i>Ornithodoros turicata</i> (Argasidae) and <i>Ixodes scapularis</i> (Ixodidae) with Insights Into Their Roles in Contrasting Biology
<p>The neurobiology of the synganglion (central nervous system) of the Lyme disease tick, <em>Ixodes scapularis</em> and the soft tick <em>Ornithodoros turicata</em> was evaluated using Illumina GAII high throughput sequencing which generated high coverage cDNA libraries (transcriptomes). These …
-
Identificacion de las principales especies de garrapatas que afectan al ganado bovino en el municipio de Mulukuku, RAAN
… identificadas en mulukuku son de la familia Ixodidae de las especie Boophilus microplus Canestrini, (1887) y Amblyoma Canjennense, Fabricius (1787). Predominando el Boophilus microplus con 66.4% y luego Amblyoma Canjennense con un 33.5% en los animales muestreados. El área de mayor …
-
The expanding distribution of Ixodes scapularis and associated pathogens in the Chicago, IL, metropolitan area
… Lyme disease, the tick Ixodes scapularis (Acari: Ixodidae), has expanded its range concurrently with the disease including into urban landscapes. To investigate landscape factors that may influence the colonization of I. scapularis and its associated pathogens in an urban ecosystem, 45 sites were …
-
Estudio epidemiólogico de la prevalencia e identificación de garrapatas en el ganado bovino del municipio de San Pedro de Lóvago - Chontales
… Las garrapatas identificadas son de la familia Ixodidae de las especies Boophilus microplus Canestrini, (1887) y Amblyoma canjennense Fabricius (1787). El área anatómica de predilección de las garrapatas en el cuerpo del animal fue la región inguinal, seguida por la vulva, la tabla del cuello y …
-
Determination of the possible role of arthropods as vectors for "Potomac Horse Fever" in equines
… and (5) Dermacentor variabilis (Acari: Ixodidae). These five arthropod species were given status as potential vectors because they were collected feeding on horses just prior to and throughout the PHF season. Simulium jenningsi and D. variabilis have the closest seasonal association with …
-
Surveillance for hard ticks of public health concern in Illinois: methods, application, and education
Between 2004 and 2016, the number of human tick-borne disease (TBD) cases doubled and seven new tick-borne pathogens that can infect humans were discovered within the United States. Because tick exposure and the risk of infection with TBDs are closely related and there is a lack of approved and …
-
Ticks And Tick-Borne Pathogens In North Dakota
<p>In 2010 a statewide survey of ticks and tick-borne pathogens was conducted in North Dakota. Ticks were collected from the four eco-regions in the state by flagging for questing adults and by collecting feeding immature ticks from trapped small mammals. I collected 1762 individual ticks …
-
One tick closer to a better understanding of tick physiology and how to incorporate tick biology in a classroom
The black-legged tick, Ixodes scapularis (Acari: Ixodidae), transmits pathogens that can have detrimental effects on human and wildlife health. The pathogens that I. scapularis transmits include the causative agents of Lyme disease and Powassan virus disease. Due to various human impact factors …