Results 31 to 40 of about 13,937 (220)

MUSCULAR SYSTEM OF THE Amblyomma americanum LARVAE (ACARI: IXODIDAE)

Revista chilena de anatomía, 2001
Se estudia la morfo-funcionalidad del sistema muscular en larvas de Amblyomma americanum. Cuatro musculos, dos depresores y dos elevadores, mueven el capitulo. Los queliceros presentan tres musculos: retractor, flexor y extensor. En cada segmento de los palpos existen dos musculos - un flexor y un extensor- que  le permiten los movimientos laterales ...
María E Casanueva
openalex   +4 more sources

Environmental correlates and fine-scale distribution of Amblyomma americanum, Ehrlichia spp., and Rickettsia amblyommatis at a single site in south-central Virginia [PDF]

Parasites & Vectors
Background As tick-borne disease cases surge in the southeastern United States, there is a growing need to understand the ecological risk factors and distribution of the most abundant tick vector, Amblyomma americanum.
Dayvion R. Adams, Roland Kays, Michael H. Reiskind   +2 more
doaj   +2 more sources

Conservation Wildflower Plantings Do Not Enhance On-Farm Abundance of Amblyomma americanum (Ixodida: Ixodidae) [PDF]

Insects, 2020
Planting wildflowers is a commonly suggested measure to conserve pollinators. While beneficial for pollinators, plots of wildflowers may be inadvertently performing an ecosystem disservice by providing a suitable habitat for arthropod disease vectors ...
Christopher McCullough, Gina Angelella, Megan O’Rourke   +2 more
doaj   +2 more sources

Ehrlichia Prevalence in Amblyomma americanum, Central Texas

Emerging Infectious Diseases, 2004
Suggested citation for this article: Long SW, Pound JM, Yu X. Ehrlichia prevalence in Amblyomma Ehrlichia chaffeensis and E. ewingii, agents of human monocytic ehrlichiosis and ehrlichiosis ewingii, respectively, are transmitted by the lone star tick, Amblyomma americanum, which is found from west-central Texas northward to Iowa, and southeastward to ...
Scott Wesley Long, J. Mathews Pound, Li Zhao   +2 more
doaj   +4 more sources

Diversity of Rickettsiales in the Microbiome of the Lone Star Tick, Amblyomma americanum [PDF]

Applied and Environmental Microbiology, 2014
ABSTRACT Ticks are important vectors for many emerging pathogens. However, they are also infected with many symbionts and commensals, often competing for the same niches. In this paper, we characterize the microbiome of Amblyomma americanum (Acari: Ixodidae), the lone star tick, in order to better ...
Loganathan Ponnusamy, Will Van Treuren, Christian M Parobek   +2 more
exaly   +6 more sources

Comparison of the initial and residual speed of Amblyomma americanum kill on dogs treated with a single dose of Bravecto® Chew (25 mg/kg fluralaner) or Simparica TRIO® (1.2 mg/kg sarolaner, 24 µg/kg moxidectin, 5 mg/kg pyrantel) [PDF]

Parasites & Vectors
Background To manage tick infestations and reduce tick-borne pathogen transmission risk to dogs, compliant administration of a fast-acting ectoparasiticide is necessary.
Kathryn E. Reif, Michael W. Dryden, Dorothy M. Normile, Qing Kang, Brian H. Herrin, Jeba R. J. Jesudoss Chelladurai, Naemi P. Bickmeier, Cameron J. Sutherland, Mallory S. Beltz   +8 more
doaj   +2 more sources

The Microbiome of Ehrlichia-Infected and Uninfected Lone Star Ticks (Amblyomma americanum). [PDF]

PLoS ONE, 2016
The Lone Star tick, Amblyomma americanum, transmits several bacterial pathogens including species of Anaplasma and Ehrlichia. Amblyomma americanum also hosts a number of non-pathogenic bacterial endosymbionts. Recent studies of other arthropod and insect
R T Trout Fryxell, J M DeBruyn
doaj   +5 more sources

Broad-scale ecological niches of pathogens vectored by the ticks Ixodes scapularis and Amblyomma americanum in North America [PDF]

PeerJ
Environmental dimensions, such as temperature, precipitation, humidity, and vegetation type, influence the activity, survival, and geographic distribution of tick species.
Abdelghafar Alkishe, Marlon E. Cobos, A. Townsend Peterson   +2 more
doaj   +3 more sources

Predicted Northward Expansion of the Geographic Range of the Tick Vector Amblyomma americanum in North America under Future Climate Conditions [PDF]

Environmental Health Perspectives, 2019
Background: The geographic range of the tick Amblyomma americanum, a vector of diseases of public health significance such as ehrlichiosis, has expanded from the southeast of the United States northward during the 20th century.
Irina Sagurova, Antoinette Ludwig, Nicholas H. Ogden, Yann Pelcat, Guillaume Dueymes, Philippe Gachon   +5 more
openalex   +2 more sources

Amblyomma americanum as a Bridging Vector for Human Infection with Francisella tularensis

PLOS ONE, 2015
The γ-proteobacterium Francisella tularensis causes seasonal tick-transmitted tularemia outbreaks in natural rabbit hosts and incidental infections in humans in the south-central United States. Although Dermacentor variabilis is considered a primary vector for F. tularensis, Amblyomma americanum is the most abundant tick species in this endemic region.
Rinosh Mani, Jessica Abbey Metcalf, Kenneth D. Clinkenbeard   +2 more
openalex   +6 more sources