ABSTRACT Like all human action that changes ecosystems, roads contribute to habitat fragmentation, acting as barriers and, consequently, causing biodiversity loss. Given the need for studies related to roadkill of wild animals, especially in the Atlantic Forest, and the vulnerability of mammal species to roadkill on the roads, we analyzed roadkill data of medium and large mammals. The study was carried out in a 100 km stretch of the BR-262 road, Atlantic Forest biome, in the Espírito Santo state. We obtained roadkill mammals’ carcasses by 42 monitoring campaigns, between January 2017 and January 2018. We recorded 259 carcasses of 22 species, which resulted in a roadkill rate of 0.062 mammal/km/day. We found that roadkill rates are higher in rainy months and lower in dry ones. We found support that three variables best predicted roadkill occurrence in the BR-262 road (i.e. positive relationship with forest cover, and accumulated precipitation ‘rainfall’, and negative relationship with speed reducers). These results indicate an alarming impact on the mammalian fauna at the site and reinforce the need for management measures and actions to reduce the mortality of wild mammals on the roads.

中文翻译：

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巴西东南部巴西公路 (BR-262) 沿线中大型哺乳动物的道路死亡：空间分布和季节变化

摘要与改变生态系统的所有人类行为一样，道路会导致栖息地破碎化，充当障碍，从而导致生物多样性丧失。鉴于需要进行与野生动物（尤其是大西洋森林）道路死亡相关的研究，以及哺乳动物物种在道路上遭遇道路死亡的脆弱性，我们分析了大中型哺乳动物的道路死亡数据。该研究是在圣埃斯皮里图州大西洋森林生物群落 BR-262 公路的 100 公里路段进行的。我们在 2017 年 1 月至 2018 年 1 月期间通过 42 次监测活动获得了路杀哺乳动物的尸体。我们记录了 22 个物种的 259 条尸体，导致路杀率为 0.062 哺乳动物/公里/天。我们发现多雨月份的道路死亡率较高，而在干燥月份则较低。我们发现支持三个变量最能预测 BR-262 道路上的道路死亡事件（即与森林覆盖率和累积降水“降雨量”呈正相关关系，与减速器呈负相关关系）。这些结果表明对现场哺乳动物群的惊人影响，并加强了采取管理措施和行动以降低道路上野生哺乳动物死亡率的必要性。