The negative effects of roads on wildlife populations are a growing concern. Movement corridors and road-kill data are typically used to prioritize road segments for mitigation measures. Some research suggests that locations where animals move across roads following corridors coincide with locations where they are often killed by vehicles. Other research indicates that corridors and road-kill rarely occur in the same locations. We compared movement corridor and road mortality models as means of prioritizing road segments for mitigation for five species of felids in Brazil: tiger cats ( Leopardus tigrinus and Leopardus guttulus were analyzed together), ocelot ( Leopardus pardalis ), jaguarundi ( Herpailurus yagouaroundi ), and puma ( Puma concolor ). We used occurrence data for each species and applied circuit theory to identify potential movement corridors crossed by roads. We used road-kill records for each species and applied maximum entropy to determine where mortality was most likely to occur on roads. Our findings suggest that movement corridors and high road mortality are not spatially associated. We suggest that differences in the behavioral state of the individuals in the species occurrence and road-kill data may explain these results. We recommend that the road segments for which the results from the two methods agree (~5300 km for all studied species combined at 95th percentile) should be high-priority candidates for mitigation together with road segments identified by at least one method in areas where felids occur in low population densities or are threatened by isolation effects.

中文翻译：

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巴西猫科动物的潜在运动走廊和高道路死亡可能性在空间上并不重合：对道路缓解的影响

道路对野生动物种群的负面影响越来越受到关注。移动走廊和道路破坏数据通常用于确定缓解措施的路段优先级。一些研究表明，动物沿着走廊穿过道路的地点与它们经常被车辆杀死的地点重合。其他研究表明，走廊和道路死亡很少发生在同一地点。我们比较了运动走廊和道路死亡率模型，作为优先考虑缓解巴西五种猫科动物的路段的手段：虎猫（虎豹和虎豹被一起分析）、豹猫（豹豹）、美洲虎（Herpailurus yagouaroundi）和美洲狮 (Puma concolor)。我们使用每个物种的发生数据并应用电路理论来识别道路穿越的潜在运动走廊。我们使用每个物种的道路死亡记录并应用最大熵来确定道路上最有可能发生死亡的地方。我们的研究结果表明，运动走廊和高道路死亡率在空间上没有关联。我们认为物种发生和道路死亡数据中个体行为状态的差异可以解释这些结果。我们建议，两种方法的结果一致的路段（所有研究物种的约 5300 公里在第 95 个百分位）应该是缓解的高优先级候选者，以及在猫科动物存在的地区至少通过一种方法确定的路段发生在低人口密度或受到隔离效应的威胁。