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 16 of 16 for “"fleas"”.
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FLEAS OF THE AMERICAN PIKA: DIVERSITY AND BIOGEOGRAPHY IN NORTH AMERICA’S INTERMOUNTAIN WEST
… whether or not patterns in diversity of fleas associated with pikas suggest a history that is more similar to that of the host or that of the endoparasites. I characterized the flea diversity and distribution within American pikas based on a sample of 837 flea specimens collected from 34 …
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The Hitchhiker's Guide to the Host: Fleas and the History of Pikas in North America
… and cestodes) and ectoparasites (e.g., fleas and mites). Phylogenetic analysis of pika endoparasites has revealed pikas evolved in Asia and colonized North America in two waves, and that contact between these two pika lineages allowed parasites to be transferred from one lineage to …
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Detection and Prevalence of <em>Wolbachia</em> within the Tick <em>Ambyomma americanum</em> and Fleas (Siphonaptera) in Southeast Georgia
… little known of Wolbachia from either ticks or fleas. This is the first report of <em>Wolbachia</em> within the lone star tick, <em>Amblyomma</em> <em>americanum</em>. Samples from the coastal region of Georgia were collected and screened individually for infection with <em>Wolbachia</em> …
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Molecular characterization of rodent- and-shrew-borne viruses and the prevalence and intensity of infestation of small mammal fleas, in Namibia
… diverse communities of both ectoparasites (e.g. fleas and ticks) and endoparasites (e.g. bacteria and viruses). Some parasites are vectors of diseases that infect both humans and wildlife. The main objective of the study was to discover and molecularly characterize novel Hantaviruses and …
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Eine Rückschau auf die artliche Zusammensetzung der Fauna stationärer Parasiten und Flöhe und deren Befallsextensitäten bei Hunden in Deutschland im Verlauf des 20. Jahrhunderts
… overview of stationary parasites and fleas in dogs according to occurence of species and frequency of infection/ infestation in Germany during the 20th century – based on a study of the scientific literature.
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Arthropod and vertebrate determinants for horizontal transmission of Rickettsia felis
… R. felis replication in naturally infected fleas, we developed a biological assay to infect naïve fleas. This is the first demonstration of oral acquisition and persistent R. felis-infection of fleas fed an R. felis-infected bloodmeal. Lastly, we describe the initial results of a murine …
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Parasite-host interactions in an arctic goose colony
… with nest bowls re-used by geese containing more fleas than new bowls. This relationship was expected as fleas over-wintered in goose nests at the Karrak Lake colony. Logistic regression and AIC were used to determine whether egg blood-coverage was an important variable influencing nest success. …
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Flea and Louse Infestations of Cotton Rats (Sigmodon Hispidus) In The Southeastern United States
… of parasitism by sucking lice (Anoplura) and fleas (Siphonaptera) of cotton rats were recorded at all sites. The geographical distribution of S. hispidus and its main louse and flea ectoparasites range from the neotropical region to the southeastern USA. It was hypothesized that the abundance …
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Environmental factors associated with atopic dermatitis in children in urban and rural South Africa
… 95% CI 1.19 – 4.75) and home infestation with fleas (aOR 1.73; 95% CI 1.24 – 2.42) increased odds of AD in our study population, as did weaning after 4 months (aOR 1.83; 95% CI 1.31 – 2.56), compared to earlier weaning. Conclusion: Our findings underscore the need for targeted interventions …
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Pestens gåta : farsoter i det tidiga 1700-talets Skåne
… societies vulnerable to the plague? What kind of fleas and what rodents are likely to have been involved?
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Bioavailability and toxicity of nickel to freshwater organisms : a modeling approach
… tests with field-organisms (microalgae and water fleas) originating from soft and hard surface waters demonstrated that in most cases soft water organisms are equally sensitive to nickel as hard water organisms and that a single bioavailability model can be used to predict the water …
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A determination of the species and subspecies of the rabbits of the genus Sylvilagus and their distribution in Virginia
… all specimens collected were infested with fleas and all, except the winter specimens, had ticks. Mites also were found in varying numbers, as was nematodes and coccidia. In summarizing the incidence of tularemia, it was found that it was not a major a disease but frequent enough to cause …
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The dynamics of ultrafast motion in biological and bio-inspired systems: the case study of click beetles
… escape predators. Mantis shrimps, trap-jaw ants, fleas, and click beetles can repeatedly achieve accelerations up to 106 m/s2. These animals generate such high accelerations using complex latch and spring systems to overcome their muscle force-speed trade-offs and amplify mechanical power output. …
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Annual cycle and morphology of lice parasitizing two sympatric African small mammals (Micaelamys namaquensis and Elephantulus myurus)
… were collected (lice, ticks, mites and fleas) and host body weight and sex were recorded. Lice were identified and counted. Images of each louse specimen collected were taken at 45X magnification. Five body measurements (body length, abdomen length, abdomen width, head length and head …
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Phthiraptera Anoplura della Sardegna: analisi delle coinfestazioni ectoparassitiche rilevate su animali d'allevamento e selvatici
… cattle and horse. On goat also were captured 7 fleas (Siphonaptera) belonging to Ctenocephalides felis (1 specimen); Ctenocephalides canis (1 specimen); Pulex irritans (5 specimens). On a horse was captured a specimen of Hippobosca equina (Diptera Ippoboscide). Were also found 170 Phthiraptera …