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Laboratory and Field Studies on the Diel Questing Patterns of the Blacklegged Tick, Ixodes scapularis
Başlık:
Laboratory and Field Studies on the Diel Questing Patterns of the Blacklegged Tick, Ixodes scapularis
Yazar:
Lee, Xia, author.
ISBN:
9780438023994
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Fiziksel Tanımlama:
1 electronic resource (135 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Advisors: Susan M. Paskewitz Committee members: Diane A. Caporale; Walter G. Goodman; John L. Orrock; Daniel K. Young.
Özet:
The blacklegged tick, Ixodes scapularis, is widely distributed throughout the Midwestern and Northeastern United States and is the vector of the etiological agent of Lyme disease, Borrelia burgdorferi. Host seeking behavior exhibited by the blacklegged tick can play an important role in disease ecology and warrants further investigation. While host seeking, ticks expend energy to ascend vegetation in order to increase their odds of encountering a host. As ticks move upwards in the vegetation, meteorological conditions can directly impact their survival. Previous studies on host seeking behavior have been conducted during the daytime only and suggest that host seeking behavior may be influenced by meteorological factors. Notably, drier daytime conditions lead to lower densities of host seeking nymphal ticks. This dissertation expands upon previous studies by assessing the diel host seeking patterns of the blacklegged tick through a period of 24 h in the laboratory and field. The first goal of this dissertation was to quantify the host seeking activity of I. scapularis in the laboratory over a 24 hour diel cycle and determine whether moisture availability affected those patterns. In addition, the impact of infection with B. burgdorferi was assessed under those same moisture conditions. The second goal was to measure host seeking activity of I. scapularis through repeated 24 hour field collections throughout the tick season. Meteorological variables were also recorded during this study to facilitate understanding of host-seeking patterns. The third goal was to determine the prevalence of tickborne pathogens including B. burgdorferi, Babesia microti, and Anaplasma phagocytophilum in field-collected ticks and assess the relationship between infection status and time of host seeking. The results and significance of the work will be discussed.
Notlar:
School code: 0262
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(682689.1) | 682689-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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