Instituto Nacional de Medicina Tropical (INMeT), Ministerio de Salud de la Nación, Jujuy y Neuquén S/N, CP 3370, Puerto Iguazú, Misiones, Argentina.
Laboratorio de Vectores y Enfermedades Transmitidas, Facultad de Veterinaria, CENUR Litoral Norte-Salto, Universidad de la República, Rivera 1350, CP 50000, Salto, Uruguay.
Ticks Tick Borne Dis. 2018 Sep;9(6):1451-1458. doi: 10.1016/j.ttbdis.2018.06.009. Epub 2018 Jun 23.
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 and 26 specimens of Didelphis aurita captured at six sites in the Iguazú National Park were collected. Generalized linear models were constructed to explain the presence and abundance of ticks and the most appropriate ones were selected after stepwise simplification. The season, site and host body mass variables were important to explain the abundance of Amblyomma coelebs nymphs, while site was important to describe larval abundance of this species. Season was the most important variable for larvae and nymphs of Haemaphysalis juxtakochi, while Amblyomma brasiliense nymphs were associated with host age. Amblyomma ovale larvae were related to host age, and adult ticks with host sex. The results indicate that these medium-sized mammals are important to support the immature tick stages and that both host and environmental factors may be associated with parasite loads.
评估环境和宿主参数的相关性，以描述阿根廷大西洋雨林地区两种中型哺乳动物的蜱寄生模式。在伊瓜苏国家公园的六个地点捕获的 93 只纳苏亚纳萨乌亚和 26 只袋獾标本上采集了发现的蜱。构建了广义线性模型来解释蜱的存在和丰度，并且在逐步简化后选择了最合适的模型。季节、地点和宿主体重变量对解释 Amblyomma coelebs 若虫的丰度很重要，而地点对该物种幼虫的丰度很重要。季节是 Haemaphysalis juxtakochi 幼虫和若虫最重要的变量，而 Amblyomma brasiliense 若虫与宿主年龄有关。 Amblyomma ovale 幼虫与宿主年龄有关，而成年蜱与宿主性别有关。结果表明，这些中型哺乳动物对支持未成熟的蜱阶段很重要，宿主和环境因素可能与寄生虫负荷有关。
