| decreased small mammal and on-host tick abundance in association with invasive red imported fire ants (solenopsis invicta). | invasive species may impact pathogen transmission by altering the distributions and interactions among native vertebrate reservoir hosts and arthropod vectors. here, we examined the direct and indirect effects of the red imported fire ant (solenopsis invicta) on the native tick, small mammal and pathogen community in southeast texas. using a replicated large-scale field manipulation study, we show that small mammals were more abundant on treatment plots where s. invicta populations were experime ... | 0 | 27651533 |
| prevalence of antibodies to spotted fever group rickettsia spp. and ehrlichia spp. in coyotes (canis latrans) in oklahoma and texas, usa. | coyotes (canis latrans) are commonly infested with ticks, including amblyomma americanum, the predominant vector of ehrlichia chaffeensis and ehrlichia ewingii; dermacentor variabilis, an important vector of rickettsia rickettsii; and amblyomma maculatum, a major vector of rickettsia parkeri, a spotted fever group (sfg) rickettsia. to determine the degree to which coyotes are infected with or exposed to tick-borne bacterial disease agents, serum samples collected from coyotes in oklahoma and tex ... | 2013 | 23778619 |
| isolation and characterization of a unique strain of rickettsia parkeri associated with the hard tick dermacentor parumapertus neumann in the western united states. | in 1953, investigators at the rocky mountain laboratories in hamilton, montana, described the isolation of a spotted fever group rickettsia (sfgr) species from dermacentor parumapertus collected from black-tailed jackrabbits (lepus californicus) in northern nevada. several decades later, investigators characterized this sfgr by using mouse serotyping methods and determined that it represented a distinct rickettsial serotype, related closely to rickettsia parkeri; nonetheless, the parumapertus ag ... | 2017 | 28213544 |