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Hot Spots and Hot Times: Wildlife Road Mortality in a Regional Conservation Corridor

机译：热点和热点：区域保护走廊的野生动物死亡率

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摘要

Strategies to reduce wildlife road mortality have become a significant component of many conservation efforts. However, their success depends on knowledge of the temporal and spatial patterns of mortality. We studied these patterns along the 1000 Islands Parkway in Ontario, Canada, a 37 km road that runs adjacent to the St. Lawrence River and bisects the Algonquin-to-Adirondacks international conservation corridor. Characteristics of all vertebrate road kill were recorded during 209 bicycle surveys conducted from 2008 to 2011. We estimate that over 16,700 vertebrates are killed on the road from April to October each year; most are amphibians, but high numbers of birds, mammals, and reptiles were also found, including six reptiles considered at-risk in Canada. Regression tree analysis was used to assess the importance of seasonality, weather, and traffic on road kill magnitude. All taxa except mammals exhibited distinct temporal peaks corresponding to phases in annual life cycles. Variations in weather and traffic were only important outside these peak times. Getis-Ord analysis was used to identify spatial clusters of mortality. Hot spots were found in all years for all taxa, but locations varied annually. A significant spatial association was found between multiyear hot spots and wetlands. The results underscore the notion that multi-species conservation efforts must account for differences in the seasonality of road mortality among species and that multiple years of data are necessary to identify locations where the greatest conservation good can be achieved. This information can be used to inform mitigation strategies with implications for conservation at regional scales.
机译：降低野生生物道路死亡率的策略已成为许多保护工作的重要组成部分。但是，它们的成功取决于对死亡的时空格局的了解。我们沿着加拿大安大略省的1000 Islands Parkway进行了研究，该道路长37公里，毗邻圣劳伦斯河，并一分为二，将阿尔冈昆至阿迪朗达克山脉的国际保护走廊一分为二。在2008年至2011年进行的209次自行车调查中，记录了所有脊椎动物道路杀害的特征。我们估计，每年4月至10月，在道路上有16700多头脊椎动物被杀害；而在2008年至2011年期间，有16700只脊椎动物被杀。大多数是两栖动物，但也发现了大量鸟类，哺乳动物和爬行动物，其中包括六只在加拿大处于危险中的爬行动物。回归树分析用于评估季节，天气和交通对道路致死程度的重要性。除哺乳动物外，所有类群均表现出明显的时间峰，对应于年度生命周期中的阶段。天气和交通量的变化仅在这些高峰时间以外才重要。 Getis-Ord分析用于确定死亡率的空间群。多年来所有类群都发现了热点，但位置每年都在变化。在多年热点和湿地之间发现了显着的空间联系。结果强调了以下观点：多物种保护工作必须考虑物种之间道路死亡率季节性的差异，并且需要多年的数据来确定可以实现最大保护价值的地点。该信息可用于为缓解策略提供信息，对区域尺度的保护具有重要意义。

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  • 来源
    《Environmental Management》 |2015年第4期|874-889|共16页
  • 作者

    Evelyn Garrah; Ryan K. Danby; Ewen Eberhardt; Glenn M. Cunnington; Scott Mitchell;

  • 作者单位

    School of Environmental Studies, Queen's University, Kingston, ON K7L 3N6, Canada;

    School of Environmental Studies, Queen's University, Kingston, ON K7L 3N6, Canada;

    Canadian Wildlife Service, Environment Canada, Gatineau, QC K1A 0H3, Canada,Geomatics and Landscape Ecology Research Laboratory and Department of Geography & Environmental Studies, Carleton University, Ottawa, ON K1S 5B6, Canada;

    Geomatics and Landscape Ecology Research Laboratory and Department of Biology, Carleton University, Ottawa, ON K1S 5B6, Canada;

    Geomatics and Landscape Ecology Research Laboratory and Department of Geography & Environmental Studies, Carleton University, Ottawa, ON K1S 5B6, Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Road ecology; Traffic impacts; Wildlife-vehicle collisions; Hot spot; Conservation biology;

    机译：道路生态学交通影响;野生动物与汽车的碰撞;热点;保护生物学;

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