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Resumen
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 one of its main hosts in Argentina, the rodent Akodon azarae. Monthly and for two years, we captured and sampled rodents at 16 points located at 4 different sites in the Parana River Delta region. The analyses were conducted with [ver mas...]
dc.contributor.authorColombo, Valeria Carolina
dc.contributor.authorNava, Santiago
dc.contributor.authorAntoniazzi, Leandro Raúl
dc.contributor.authorMonje, Lucas Daniel
dc.contributor.authorRacca, Andrea Laura
dc.contributor.authorGuglielmone, Alberto
dc.contributor.authorBeldomenico, Pablo Martín
dc.date.accessioned2018-08-08T13:03:20Z
dc.date.available2018-08-08T13:03:20Z
dc.date.issued2015-07-30
dc.identifier.issn0304-4017
dc.identifier.otherhttps://doi.org/10.1016/j.vetpar.2015.06.012
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0304401715002939
dc.identifier.urihttp://hdl.handle.net/20.500.12123/3012
dc.description.abstractHere 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 one of its main hosts in Argentina, the rodent Akodon azarae. Monthly and for two years, we captured and sampled rodents at 16 points located at 4 different sites in the Parana River Delta region. The analyses were conducted with Generalized Linear Mixed Models with a negative binomial response (counts of larvae or nymphs). The independent variables assessed were: (a) environmental: trapping year, season, presence of cattle; type of vegetation (natural grassland or implanted forest); rodent abundance; (b) host parameters: body length; sex; body condition; blood cell counts; natural antibody titres; and (c) co-infestation with other ectoparasites: other stage of A. triste; Ixodes loricatus; lice; mites; and fleas. Two-way interaction terms deemed a priori as relevant were also included in the analysis. Larvae were affected by all environmental variables assessed and by the presence of other ectoparasites (lice, fleas and other tick species). Host factors significantly associated with larval count were sex and levels of natural antibodies. Nymphs were associated with season, presence of cattle, body condition, body length and with burdens of I. loricatus. In most cases, the direction and magnitude of the associations were context-dependent (many interaction terms were significant). The findings of greater significance and implications of our study are two. Firstly, as burdens of A. triste larvae and nymphs were greater where cattle were present, and larval tick burdens were higher in implanted forests, silvopastoral practices developing in the region may affect the population dynamics of A. triste, and consequently the eco-epidemiology of Rickettsia parkeri. Secondly, strong associations and numerous interactions with other ectoparasites suggest that co-infestations may be more important for tick dynamics than has so far been appreciated.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceVeterinary Parasitology 211 (3–4) : 251-258 (July 2015)es_AR
dc.subjectAmblyommaes_AR
dc.subjectRoedoreses_AR
dc.subjectRodentseng
dc.subjectRelaciones Huésped Parásitoes_AR
dc.subjectHost Parasite Relationseng
dc.subjectParasitismoes_AR
dc.subjectParasitismeng
dc.subjectEnfermedades Transmitidas por Garrapatases_AR
dc.subjectTickborne Diseaseseng
dc.subject.otherAmblyomma tristees_AR
dc.subject.otherGarrapatases_AR
dc.titleFactors affecting patterns of Amblyomma triste (Acari: Ixodidae) parasitism in a rodent hostes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Rafaelaes_AR
dc.description.filFil: Colombo, Valeria Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Instituto de Ciencias Veterinarias del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Laboratorio de Ecología de Enfermedades; Argentinaes_AR
dc.description.filFil: Nava, Santiago. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Regional Agropecuaria Rafaela; Argentinaes_AR
dc.description.filFil: Antoniazzi, Leandro Raúl. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Instituto de Ciencias Veterinarias del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Laboratorio de Ecología de Enfermedades; Argentinaes_AR
dc.description.filFil: Monje, Lucas Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Instituto de Ciencias Veterinarias del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Laboratorio de Ecología de Enfermedades; Argentinaes_AR
dc.description.filFil: Racca, Andrea Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Instituto de Ciencias Veterinarias del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Laboratorio de Ecología de Enfermedades; Argentinaes_AR
dc.description.filFil: Guglielmone, Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Regional Agropecuaria Rafaela; Argentinaes_AR
dc.description.filFil: Beldomenico, Pablo Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Instituto de Ciencias Veterinarias del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Laboratorio de Ecología de Enfermedades; Argentinaes_AR
dc.subtypecientifico


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