Abstract. An important factor in the decline of global animal diversity is road traffic, where many animals are killed. This study aimed to collect data on vertebrate roadkill in the city of Vienna, Austria, between 2017 and 2022 using three different approaches: citizen science, systematic monitoring by bicycle along a 15 km route, and systematic monitoring on foot along a 3 km route. During 359 monitoring events, only four roadkill incidences (three Erinaceus sp., one Rattus sp.) were found by bicycle or on foot. At the same time citizen scientists reported 1 roadkill squirrel on the bicycle route and 84 roadkill incidences for the entire city area. Hedgehogs and urban birds were commonly reported species by citizen scientists. Although no amphibian or reptile roadkill was found during systematic monitoring, they were reported by citizen scientists. The low number of roadkill incidences found suggests a potentially low population density that makes the impact of roadkill even more severe – a hypothesis that should be further investigated amidst the global decline in biodiversity.

中文翻译：

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维也纳城市道路交通事故评估显示发病率较低

摘要。全球动物多样性下降的一个重要因素是道路交通，导致许多动物被杀害。本研究旨在使用三种不同的方法收集 2017 年至 2022 年间奥地利维也纳市脊椎动物道路死亡的数据：公民科学、沿 15 公里路线的自行车系统监测以及沿 3 公里路线的步行系统监测。在 359 次监测事件中，仅发现 4 起道路死亡事故（3 起刺猬属，1 起黄鼠属）是通过骑自行车或步行发生的。与此同时，公民科学家报告称，自行车道上有 1 只松鼠被路杀，整个城区有 84 起路杀事件。刺猬和城市鸟类是公民科学家经常报告的物种。尽管在系统监测期间没有发现两栖动物或爬行动物被道路杀死，但民间科学家报告了这些情况。发现的道路死亡事件数量较低表明人口密度可能较低，这使得道路死亡的影响更加严重——在全球生物多样性下降的情况下，应该进一步研究这一假设。