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Geographic variation in the distribution of Anaplasma phagocytophilum variants in host-seeking Ixodes scapularis nymphs and adults in the eastern United States elucidated using next generation sequencing. [PDF]
Ticks Tick Borne DisHojgaard A +6 more
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The neuropeptidomics of Ixodes scapularis synganglion
Journal of Proteomics, 2009Ticks (Ixodoidea) likely transmit the greatest variety of human and animal pathogens of any arthropod vector. Despite their medical significance little data is available about the messenger molecules in the central nervous system that coordinate all physiological processes in these animals, including behaviour.
Susanne Neupert +7 more
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Ixodes Scapularis Say in Northern Wisconsin1
Journal of Medical Entomology, 1970Adult Ixodes scapularis Say were collected from vegetation and deer kills in northern Wisconsin.
John O. Jackson, Gene R. DeFoliart
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Forum: Reported Distribution of Ixodes scapularis and Ixodes pacificus (Acari: Ixodidae) in the United States [PDF]
Journal of Medical Entomology, 1998 Lyme disease, caused by infection with Borrelia burgdorferi, is the most frequently reported arthropod-borne disease in the United States. To develop a national map of the distribution of the vectors of B. burgdorferi to humans (Ixodes scapularis Say and Ixodes pacificus Cooley & Kohls ticks), we sent questionnaires to acarologists, health officials ...
William S. Paul +4 more
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The defensin gene family expansion in the tick Ixodes scapularis
Developmental & Comparative Immunology, 2011Ixodid ticks transmit a variety of pathogens by blood feeding. Here, we report computational identification of two multigene families of defensin-like peptides (DLPs) in the Ixodes scapularis genome, one corresponding to scapularisin and the other named scasin.
Yanbing Wang, Shunyi Zhu
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Survival of Ixodes scapularis (Acari: Ixodidae) Exposed to Cold
Journal of Medical Entomology, 1996The cold hardiness of Ixodes scapularis Say unengorged larvae, engorged larvae, unengorged nymphs, engorged nymphs, and unengorged adults was evaluated. Ticks were exposed to cold for 2 or 8 h at a range of temperatures. Likelihood ratio tests and LT50 estimates were used to evaluate cold hardiness.
John K. VanDyk +3 more
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New records of immature Ixodes scapularis from Mississippi
Journal of Vector Ecology, 2006The role of immature Ixodes scapularis in the ecology of Lyme disease is well documented (Piesman 2002). In the northeastern and midwestern U.S., nymphal I. scapularis are abundant and are the most important vectors of the etiologic agent, Borrelia burgdorferi. This apparently is not the case in the southern U.S.
Jerome Goddard, Joseph Piesman
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Vitellogenin and Ecdysteroid Titers in Ixodes scapularis during Vitellogenesis
The Journal of Parasitology, 1997Ecdysteroids are the only hormones unequivocally identified thus far in ticks. We found a positive correlation between ecdysteroid concentration and vitellogenin synthesis in female Ixodes scapularis. Vitellogenin (Vg) synthetic activity was measured by an in vitro assay for Vg, involving incubations of the fat body with 35S-methionine and ...
X. X. Zhu, James Am, Oliver Jh
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Evidence for genetic hybridization between Ixodes scapularis and Ixodes cookei
Canadian Journal of Zoology, 2017Ixodes scapularis Say, 1821 (the black-legged tick) is becoming established in Canada. The northwards expansion of I. scapularis leads to contact between I. scapularis and Ixodes cookei Packard, 1869, a well-established tick species in Eastern Canada. Examination of I. cookei and I. scapularis collected from New Brunswick revealed ticks with ambiguous
Patterson, James W. +3 more
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