Abstract：
Over nearly 12 years, we collected ticks from free-ranging jaguars (Panthera onca) and performed statistical analyses to comprehend the vector-host relationship throughout the seasons. We evaluated the presence and number of ticks, as well as their association with weight, age, and gender of captured jaguars in the Pantanal and Amazon biomes. Out of 100 captured jaguars (comprising 72 initial captures and 28 recaptures, with 41 females and 31 males), 77 were found to be infested by different tick species. We gathered a total of 1,002 ticks, categorized by the following species in descending order of abundance: Amblyomma sculptum, Amblyomma ovale, Rhipicephalus microplus, Amblyomma triste, Amblyomma cajennense sensu stricto, Amblyomma incisum, and Amblyomma spp. larvae. Apart from weight, statistical analysis indicated that age, gender and seasonality does not significantly affect the presence of different tick species in free ranging jaguars. Notably, A. sculptum adults were more abundant in the first semester, while A. sculptum nymphs and Amblyomma spp. larvae were mainly found during dry months, aligning with their expected life cycle stages. This is the first long-term study in jaguars to correlate seasonality and host factors and also the first time an adult of A. incisum is reported infesting a jaguar.
摘要：
在将近12年的时间里,我们从自由放养的美洲虎（Pantheraonca）中收集了蜱，并进行了统计分析，以了解整个季节的媒介-宿主关系。我们评估了蜱的存在和数量，以及它们与体重的联系，年龄,以及潘塔纳尔和亚马逊生物群落中捕获的美洲虎的性别。在100只捕获的美洲虎中（包括72只初始捕获和28只重新捕获，41名女性和31名男性)，发现77种被不同的蜱物种感染。我们总共收集了1,002只蜱,按丰度降序按以下物种分类：弱光雕塑，卵双卵双卵,微小根皮phalus，弱视三角，Amblyommacajennensesensustricto，弱视事故，和Amblyommaspp.幼虫.除了体重,统计分析表明，年龄，性别和季节性不会显着影响自由饲养的美洲虎中不同蜱种的存在。值得注意的是,A.雕塑成人在第一学期更丰富，而A.雕塑若虫和Ablyomma。幼虫主要在干旱月份发现，与他们预期的生命周期阶段保持一致。这是美洲虎中第一个将季节性与宿主因素相关联的长期研究，也是首次报道有A.incisum的成年人感染美洲虎。
