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Mostrando ítems 41-60 de 144
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Do parapatric populations of the ticks Amblyomma tonelliae Nava, Beati & Labruna, 2014 and Amblyomma sculptum Berlese, 1888 (Acari: Ixodidae) hybridize?
Tarragona, Evelina Luisa; Lado, Paula; Beati, Lorenza; Mangold, Atilio Jose; Guglielmone, Alberto; Nava, Santiago (Royal Entomological Society, 2023-02-02)This work aimed to determine if the tick species, Amblyomma sculptum and Amblyomma tonelliae, hybridize along their contact zones in Argentina. Free-living adults and nymphs of A. sculptum and A. tonelliae were collected ... -
Ecological characterization of a tick community across a landscape gradient exhibiting differential anthropogenic disturbance in the Atlantic Forest ecoregion in Argentina
Lamattina, Daniela; Venzal, José Manuel; Costa, Sebastián Andrés; Arrabal, Juan Pablo; Flores, S.; Berrozpe, Pablo Eduardo; González-Acuña, Daniel; Guglielmone, Alberto; Nava, Santiago (2018-02)An ecological analysis of a tick (Ixodida: Ixodidae) community across a landscape gradient presenting differential anthropogenic disturbance in the Atlantic Forest ecoregion in Argentina was performed. Ticks were collected ... -
Ecology and genetic variation of Amblyomma tonelliae in Argentina
Tarragona, Evelina Luisa; Mangold, Atilio Jose; Mastropaolo, Mariano; Guglielmone, Alberto; Nava, Santiago (2015-09)The ecology of Amblyomma tonelliae (Ixodida: Ixodidae), including its seasonal distribution and the development periods of each stage, was investigated during a study carried out over two consecutive years in northwestern ... -
Ecology of the interaction between Ixodes loricatus (Acari: Ixodidae) and Akodon azarae (Rodentia: Criceridae)
Colombo, Valeria Carolina; Nava, Santiago; Antoniazzi, Leandro Raúl; Monje, Lucas Daniel; Racca, Andrea Laura; Guglielmone, Alberto; Beldomenico, Pablo Martín (2015-10)The present study explores associations of different factors (i.e. host parameters, presence of other ectoparasites and [mainly biotic] environmental factors) with burdens of Ixodes loricatus immature stages in one of its ... -
Effect of deforestation and introduction of exotic grasses as livestock forage on the population dynamics of the cattle tick Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) in northern Argentina
Nava, Santiago; Mastropaolo, Mariano; Guglielmone, Alberto; Mangold, Atilio Jose (2013-12)The effect of deforestation and the introduction of exotic grasses on the population dynamics of Rhipicephalus (Boophilus) microplus in northern Argentina was analysed. Biological parameters that were measured included ... -
Efficacy of winter–spring strategic control against Rhipicephalus (Boophilus) microplus infestations on cattle in an area with ecological conditions highly favourable for the tick in northeast Argentina
Nava, Santiago; Toffaletti, Jose Rodolfo; Morel, Nicolas; Guglielmone, Alberto; Mangold, Atilio Jose (Wiley, 2019-01)This work was performed to test the efficacy of winter–spring control strategies against Rhipicephalus (Boophilus) microplus (Ixodida: Ixodidae) infestations on cattle in the area ecologically most favourable for the ... -
Ehrlichia canis (Rickettsiales: Anaplasmataceae) en garrapatas Rhipicephalus sanguineus sensu lato del linaje templado (Acari. Ixodidae), provincia de Buenos Aires, Argentina
Cicuttin, Gabriel L.; de Salvo, María Nazarena; Silva, Dario A.; Brito, Mariana; Nava, Santiago (2017)El objetivo del presente estudio es notificar el hallazgo de Ehrlichia canis en garrapatas Rhipicephalus sanguineus sensu lato (s. l.) del linaje templado (LTe) colectadas sobre un canino con ehrlichiosis monocítica canina ... -
Epidemiological link between canine monocytic ehrlichiosis caused by Ehrlichia canis and the presence of Rhipicephalus sanguineus sensu stricto in Argentina
Sebastian, Patrick Stephan; Mera y Sierra, Roberto; Neira, Gisela; Hadid, Jaled; Flores, Fernando Sebastian; Nava, Santiago (Springer, 2021-01)In this work, we analyze data that support an epidemiological link between cases of canine monocytic ehrlichiosis (CME) by Ehrlichia canis and the presence of Rhipicephalus sanguineus sensu stricto as vector in an endemic ... -
Eprinomectin accumulation in Rhipicephalus (Boophilus) microplus : pharmacokinetic and efficacy assessment
Lifschitz, Adrian Luis; Nava, Santiago; Mangold, Atilio Jose; Imperiale, Fernanda Andrea; Ballent, Mariana; Canevari, Jose Tobias; Lanusse, Carlos Edmundo (2016-01)Eprinomectin (EPM) is a macrocyclic lactone used against endo-ectoparasites without withdrawal time in milk and meat after its pour-on administration at 0.5 mg/kg. Previous experiments evaluated the efficacy of EPM against ... -
Especies de garrapatas duras en un área urbana protegida de la Ciudad Autónoma de Buenos Aires = Hard Tick Species in a Protected Urban Area of Buenos Aires City
Cicuttin, Gabriel L.; de Salvo, María Nazarena; Nava, Santiago (Ministerio de Salud de la Nación, Argentina, 2017-09)INTRODUCCIÓN: Las garrapatas (Acari, Ixodida) son artrópodos vectores de gran diversidad de patógenos virales, bacterianos y protozoarios, muchos de los cuales son zoonóticos y emergentes. En Argentina se encuentran numerosas ... -
Evaluation of the impact of successive acaricide treatments on resistance evolution in Rhipicephalus microplus populations: Monodrugs versus drug combinations
Sarli, Macarena; Torrents, Jorgelina; Toffaletti, Jose Rodolfo; Morel, Nicolas; Nava, Santiago (Elsevier, 2023-11)The aim of this work was to comparatively evaluate the evolution of resistance in Rhipicephalus microplus tick populations exposed to successive treatments with monodrug-based formulations and combinations of them in the ... -
Exotic tick detected in Argentina on a tourist returning from South Africa
Tarragona, Evelina Luisa; Sebastian, Patrick Stephan; Guglielmone, Alberto; Nava, Santiago (Elsevier, 2021-02-12)The aim of this study was to report the finding of a nymph attached to an Argentinean tourist returning from South Africa. The nymph specimen was morphologically analysed, submitted to DNA extraction and amplifying the 16S ... -
Exploring the ecological and evolutionary relationships between Rickettsia and hard ticks in the Neotropical region
Estrada-Peña, Agustín; Binder, Lina C.; Nava, Santiago; Szabó, Matías P.J.; Labruna, Marcelo B. (Elsevier, 2021-06)This study addresses a meta-analysis of the distribution of Rickettsia spp. in the Neotropical region, as well as their associations with ticks and vertebrates. A total of 219 published reports on Rickettsia in ticks in ... -
Factors affecting patterns of Amblyomma triste (Acari: Ixodidae) parasitism in a rodent host
Colombo, Valeria Carolina; Nava, Santiago; Antoniazzi, Leandro Raúl; Monje, Lucas Daniel; Racca, Andrea Laura; Guglielmone, Alberto; Beldomenico, Pablo Martín (2015-07-30)Here we offer a multivariable analysis that explores associations of different factors (i.e., environmental, host parameters, presence of other ectoparasites) with the interaction of Amblyomma triste immature stages and ... -
Factors associated with hard tick (Acari: Ixodidae) parasitism in medium-sized mammals in the Atlantic Rainforest region of Argentina
Lamattina, Daniela; Costa, Sebastián Andrés; Arrabal, Juan Pablo; Venzal, José Manuel; Guglielmone, Alberto; Nava, Santiago (2018-06)Associations with environmental and host parameters were assessed to describe tick parasitism patterns in two medium-sized mammals of the Atlantic rainforest region of Argentina. Ticks found on 93 specimens of Nasua nasua ... -
First detection of Hyalomma rufipes in Germany
Chitimia-Dobler, Lidia; Nava, Santiago; Bestehorn, Malena; Dobler, Gerhard; Wölfel, Silke (2016-10)Hyalomma rufipes, a two-host tick, is the most widespread Hyalomma species in Africa. In December 2015, an ixodid tick male with an unusual morphology was detected on a horse in a stable near Mainz in the Federal State ... -
First detection of “Candidatus Rickettsia wissemanii” in Ornithodoros hasei (Schulze, 1935) (Acari: Argasidae) from Argentina
Colombo, Valeria Carolina; Montani, Maria Eugenia; Pave, Romina Elizabeth; Antoniazzi, Leandro Raúl; Gamboa, Marcelo D.; Fasano, Agustín A.; Félix, Maria L.; Nava, Santiago; Venzal, José Manuel (Elsevier, 2020-07)The aim of this study was to assess the presence of Rickettsia in soft ticks (Acari: Argasidae) collected from insectivorous bats (Chiroptera) in Santa Fe province, Argentina. First, a subset of ticks were mounted in Hoyer’s ... -
Garrapatas (ixodida) y ácaros (mesostigmata) parásitos de roedores sigmodontinos del delta del Paraná, Argentina
Colombo, Valeria Carolina; Lareschi, Marcela; Monje, Lucas Daniel; Nava, Santiago; Antoniazzi, Leandro Raúl; Beldomenico, Pablo Martín; Guglielmone, Alberto (2013)Se determinaron las especies de garrapatas y ácaros mesostigmata parásitos de roedores sig-modontinos en una localidad del Delta del Paraná. Fueron registradas 38 asociaciones parásito-hospedador entre dos especies de ... -
Garrapatas exóticas: hallazgo de Amblyomma latum Koch, 1844 (Acari: Ixodidae) parasitando Python regius (Serpentes: Boidae) en Uruguay
Venzal, José Manuel; Nava, Santiago; Guglielmone, Alberto (Sociedad de Medicina Veterinaria del Uruguay, 2007-12)La introducción de parásitos vectores a través de animales exóticos adquiridos como mascotas puede generar riesgos sanitarios. El ingreso de garrapatas que usan como hospedadores reptiles exóticos ha sido reportado en ... -
Genetic analysis of Rhipicephalus sanguineus sensu lato ticks parasites of dogs in Africa north of the Sahara based on mitochondrial DNA sequences
Chitimia-Dobler, Lidia; Langguth, Johanna; Pfeffer, Martin; Kattner, Simone; Küpper, Thomas; Friese, Daniela; Guglielmone, Alberto; Nava, Santiago (2017-05)The aim of this work was to determine the evolutionary relationship among tick populations of Rhipicephalus sanguineus sensu lato distributed in Africa north of the Sahara and different lineages of R. sanguineus s.l. ...