Ilha Grande, Rio de Janeiro State, is an important island remnant of Atlantic Forest and presents four conservation units. Although dogs are forbidden inside conservation units, in Ilha Grande they are present in all villages, many of them are bred loose, interacting with the tourists, the surrounding forest, and the wild animals. The entry of dogs into forests and encounters with wild animals can promote the exchange of parasites such as ticks and their associated pathogens. We sought to survey the tick fauna of dogs and verify whether host-related factors, as well as localities, and street access are associated with the presence of ticks. We sampled 11 villages, totalling 388 dogs. Ticks were collected off 118 dogs. The most prevalent tick was Rhipicephalus sanguineus sensu lato accounting for 28.87% of tick individuals. Amblyomma ovale and Amblyomma dubitatum were present on seven and one dog, respectively. Dogs with street access, bad body condition, medium and large size, and without defined breed showed a higher occurrence of R. sanguineus s.l. Although we observed dogs on trails, within the forest, and the owners themselves indicated a strong relationship of dogs with the forest, we found a low prevalence of ticks associated with wild animals.

里约热内卢州格兰德岛（Ilha Grande）是大西洋森林的重要岛屿遗迹，拥有四个保护单位。尽管在保护区禁止狗进入，但在伊利亚哈格兰德（Ilha Grande），它们在所有村庄中都存在，但其中许多人都是宽松饲养的，与游客，周围的森林和野生动物互动。狗进入森林并与野生动物相遇可以促进promote虫及其相关病原体等寄生虫的交换。我们试图调查狗的tick动物区系，并验证与宿主相关的因素，地点和街道通道是否与of的存在相关。我们抽样了11个村庄，总共388条狗。从118只狗身上收集。最普遍的壁虱是Rhipicephalus sanguineusSensu lato占虱子个体的28.87％。卵圆蜱和蜱dubitatum分别出现在七种一只狗。具有街道通行性，身体状况恶劣，中型和大型且没有特定品种的狗显示出R. sanguineus sl的发生率更高。尽管我们在森林中的小路上看到了狗，而且主人自己表明狗与狗之间的牢固关系在森林中，我们发现与野生动物有关的壁虱患病率较低。