The Genus Amblyomma (Ixodidae) in the United States

Cooley, R. A.; Kohls, Glen M.

doi:10.2307/3272571

Cited by 156 publications

(107 citation statements)

References 12 publications

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“…This result, coupled with a recent study that reported A. ovale larvae and nymphs parasitizing passerine birds in southeastern Brazil, suggest that birds might also have some important role in the life history of A. ovale, especially concerning dispersion of ticks among different geographical areas. In this regard, the few available records of A. ovale in the United States (Cooley and Kohls 1944;Durden and Kollars 1992), where this tick is possibly not established, could be a result of migration of A. ovale-infested birds, as already known for Amblyomma longirostre (Koch), a typical neotropical species that has been repeatedly introduced in the United States and Canada by migrating birds (Keirans and Durden 1998;Scott et al 2001).…”

Section: Discussionmentioning

confidence: 99%

Life-cycle and host preference of Amblyomma ovale (Acari: Ixodidae) under laboratory conditions

Moura

Labruna

2011

Exp Appl Acarol

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This study evaluated for the first time the life cycle of Amblyomma ovale in the laboratory. For this purpose, larvae and nymphs were exposed to Gallus gallus (chickens), Cavia porcellus (guinea pigs), Rattus norvegicus (wistar rats), Oryctolagus cuniculus (domestic rabbits), Calomys callosus (vesper mouse), and Didelphis albiventris (whiteeared opossum). Nymphs were also exposed to Nectomys squamipes (South American water rat). Adult ticks were fed on dogs. The life-cycle of A. ovale in laboratory could be completed in an average period of ca. 190 days, considering prefeeding periods of 30 days for each of the parasitic stages. Vesper mice were the most suitable host for A. ovale larvae, whereas water rats were the most suitable host for A. ovale nymphs. Our results, coupled with literature data, strongly indicate that small rodents have an important role in the life history of A. ovale. Chickens (the only avian host used in the present study) showed to be moderately suitable hosts for subadult A. ovale ticks, indicating that wild birds might have a secondary role in the life history of A. ovale. Domestic dogs showed to be highly suitable for the adult stage of A. ovale, in agreement with literature data that indicate that the domestic dog is currently one of the most important hosts of A. ovale adult ticks in Latin America.

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Section: Discussionmentioning

confidence: 99%

Life-cycle and host preference of Amblyomma ovale (Acari: Ixodidae) under laboratory conditions

Moura

Labruna

2011

Exp Appl Acarol

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“…Numerous studies have documented the ascendancy of A. americanum ticks across the Southeast, their extension as far north as Massachusetts as early as 1947 [20,22], and more recently into Maine and west to Nebraska [3,23,24]. Lone star tick pathogens include the long-implicated Rickettsia rickettsii, the agent of RMSF [25,26]; Francisella tularensis, the agent of tularemia; Ehrlichia chaffeensis, Ehrlichia ewingii, Panola Mountain Ehrlichia; [3] and other rickettsial organisms including R. parkeri and R. amblyommii [3]. The latter is now suspected of being a mild pathogen and may contribute to cross-reactivity when testing for R. rickettsii [3,27].…”

Section: Discussionmentioning

confidence: 99%

Retrospective Case Reports of Two Central North Carolina Residents

Herman-Giddens

2017

North Carolina Medical Journal

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“…GCT thrive in coastal uplands and tall-grass prairies, where the immature stages feed on a variety of birds and small rodents and adults feed on large mammals, such as cattle and deer (Bishopp & Hixson 1936;Cooley & Kohls 1944;Bishopp & Trembley 1945). High populations of GCT have been reported from coastal Mississippi, with R. parkeri infection rates as high as 40% (Paddock et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…The Gulf Coast tick (GCT), Amblyomma maculatum Koch (Acari: Ixodidae), is a large and aggressive tick species occurring from parts of South America northward into the United States, where it commonly may be found along the southern Atlantic and Gulf coasts from North Carolina to Texas (Bishopp & Hixson 1936;Cooley & Kohls 1944;Bishopp & Trembley 1945). There are also occasional reports of the species from inland and northern states (Goddard & Norment 1983;Snoddy & Cooney 1984), and a well-established population occurs in Oklahoma and Kansas (Semtner & Hair 1973).…”

Section: Introductionmentioning

confidence: 99%

Observations on questing activity of adult Gulf Coast ticks, Amblyomma maculatum Koch (Acari: Ixodidae), in Mississippi, U.S.A.

Goddard¹,

Varela‐Stokes²,

Schneider³

2011

Systematic and Applied Acarology

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During August of 2008 and 2009, observations were made on the questing heights, behaviors, and spatial distribution of adult Gulf Coast ticks, Amblyomma maculatum, in a plot near Gautier, Jackson County, Mississippi, U.S.A. Ticks were not evenly distributed in the plot, being found mostly on torpedograss and/or wiregrass along and in a small dirt field road. Adult ticks were visually observed questing on three different plants: torpedograss, Panicum repens, wiregrass, Aristida stricta, and Johnsongrass, Sorghum halepense, all but the last of which have small-diameter stems and thin, pointed leaves. Ticks were located at or near the tips of the plants (2-tail binomial probability, p = 0.0074). Observed questing heights ranged from 20-75 cm, with an average of 36 cm. Nine of 15 ticks (60%) seen questing were oriented head upward, while 6 (40%) were headdown. Limited mark-release-recapture observations were made in the study site, using ticks collected from the field road. Of 27 ticks marked and released, 15 were recaptured in three samples spanning a 24-d period. Of these, 5 had moved closer to the dirt road where they were originally captured and 2 farther away.

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The Genus Amblyomma (Ixodidae) in the United States

Cited by 156 publications

References 12 publications

Life-cycle and host preference of Amblyomma ovale (Acari: Ixodidae) under laboratory conditions

Life-cycle and host preference of Amblyomma ovale (Acari: Ixodidae) under laboratory conditions

Retrospective Case Reports of Two Central North Carolina Residents

Observations on questing activity of adult Gulf Coast ticks, Amblyomma maculatum Koch (Acari: Ixodidae), in Mississippi, U.S.A.

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