Results 201 to 210 of about 19,331 (235)

Density-Dependent Seasonal Dynamics of Blacklegged Tick (Acari: Ixodidae) Nymphs

Journal of Medical Entomology, 1997
The midsummer seasonal decline in abundance of unfed Ixodes scapularis Say nymphs on experimental plots in New Jersey was density-dependent. Nymph density was manipulated on 9 plots (10 by 10 m each) in Morristown. National Historical Park, NJ, in early June 1994.
S G, Vail, G, Smith
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Nocturnal Questing by Adult Blacklegged Ticks, Ixodes scapularis (Acari: Ixodidae)

The Journal of Parasitology, 1996
Quantitative tick drag samples were taken at various times during the day and night from February through April 1994 on St. Catherines Island or on Sapelo Island, Georgia. For each month, there was no statistical difference between the numbers of adult blacklegged ticks, Ixodes scapularis, collected during any hour of daylight or darkness on St ...
L A, Durden, G N, Vogel, J H, Oliver
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Multivariate Morphometrics of Larvae of the Blacklegged Tick (Ixodes Scapularis) with Notes on Nomenclature

The Journal of Parasitology, 1996
A morphological study of the larval stage of the blacklegged tick, Ixodes scapularis, was conducted to further examine congruence between northern and southern morphotypes. Preliminary ANOVA revealed that 9 characters were not significantly different; thus 28 characters were used in analyses of a total of 8 groups of I.
H J, Hutcheson, J H, Oliver
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The question of fluctuating asymmetry in the blacklegged tick Ixodes scapularis (Acari: Ixodidae)

Experimental & Applied Acarology, 1998
An analysis of fluctuating asymmetry was conducted on populations of the blacklegged tick Ixodes scapularis. The eight groups used in this study consisted of larvae and nymphs and males and females from the states of Minnesota, Massachusetts, Maryland, Missouri, North Carolina and Georgia and the F1 progenies of reciprocal crosses between ticks from ...
H J, Hutcheson, J H, Oliver
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Notes on Responses of Blacklegged Ticks (Acari: Ixodidae) to Host Urine

Journal of Medical Entomology, 1999
In laboratory bioassays under conditions of high humidity, host-seeking female black-legged ticks, Ixodes scapularis Say, avoided urine of reproductively active male and nonestrous female white-tailed deer, Odocoileus virginianus (Zimmermann), the principal host species of the adult stage. At 50% RH, female I.
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Simulation of Blacklegged Tick (Acari: Ixodidae) Population Dynamics and Transmission of Borrelia burgdorferi

Journal of Medical Entomology, 1997
A model (LYMESIM) was developed for computer simulation of blacklegged tick, Ixodes scapularis Say, population dynamics and transmission of the Lyme disease agent. Borrelia burgdorferi Johnson. Schmid, Hyde, Steigerwalt & Brenner, LYMESIM simulates the effects of ambient temperature, saturation deficit, precipitation, habitat type, and host type and ...
G A, Mount, D G, Haile, E, Daniels
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Estimating Population Size and Drag Sampling Efficiency for the Blacklegged Tick (Acari: Ixodidae)

Journal of Medical Entomology, 2000
Estimates of absolute density were determined over a 5-yr period (1990-1994) for a population of Ixodes scapularis Say located in Westchester County, NY, by mark-release-recapture (nymphs and adults) and removal (larvae) methods. Density estimates for larvae ranged from 5.2 to 16.5/m2 and averaged 11.5/m2.
T J, Daniels, R C, Falco, D, Fish
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Parasitism of lizards by immature stages of the blacklegged tick, Ixodes scapularis (Acari, Ixodidae)

Experimental & Applied Acarology, 2002
From 1982-1985 and 1993-1999, a total of 309 individual reptiles, mostly lizards and snakes, belonging to 12 species (American alligator, six lizard species, five snake species) was captured on St. Catherine's Island, Liberty County, Georgia, USA, and examined for ticks.
Lance A, Durden, James H, Oliver, Craig W, Banks, Gregory N, Vogel   +3 more
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Responses of juvenile blacklegged ticks (Acari: Ixodidae) to hosts of varying quality

Journal of Medical Entomology
Abstract Blacklegged ticks (Ixodes scapularis) are the most medically and economically important vectors in North America. Each of their 3 life stages requires a blood meal from one of many potential host species, during which they can acquire or transmit pathogens.
Emily S Burton, Richard S Ostfeld, Jesse L Brunner   +2 more
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HOST SELECTION BY BLACKLEGGED TICKS (IXODES SCAPULARIS)

Here, I have broken the blacklegged tick host selection process into discrete stages — from encountering a host to climbing onto a host — to empirically evaluate how juvenile blacklegged ticks select (or perhaps do not select) their hosts. By breaking down the host selection process into discrete stages where ticks may or may not exhibit differential ...
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