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首页> 外文期刊>The Canadian Field-Naturalist >Do turtle warning signs reduce roadkill?
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Do turtle warning signs reduce roadkill?

机译:乌龟警告标志还减少了路基吗?

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Roadkill is a serious threat for many species of freshwater turtles. One of the most common road mitigation tools is wildlife warning signs to alert drivers. These warning signs have commonly been used for large mammals, although there is little evidence that they are effective in reducing roadkiil. We tested the effectiveness of turtle warning signs at four known roadkill hotspots along a provincial highway in eastern Ontario and compared the results with four control sites on a nearby major road in a before-after-control-impact (BACI) study. We found 30 dead turtles in the four hotspots in 2017 before the signs were installed and 27 in 2018 after the signs were installed. The number of turtles killed on the road after the signs were installed did not change significantly (χ21 = 1.1, P > 0.2). Although turtle warning signs may alert some drivers, they should not be considered a replacement for more effective road mitigation tools, such as wildlife fencing and crossing structures.
机译:Roadkill对许多淡水乌龟进行严重威胁。 最常见的道路缓解工具之一是警报驱动程序的野生动物警告标志。 这些警告标志通常用于大型哺乳动物,尽管几乎没有证据表明它们有效地减少了途径。 我们在安大略省东部的省级公路上测试了乌龟警告标志的有效性,并将结果与附近的一条主要道路上的四个控制场所进行了比较,在后续控制会上(Baci)研究。 我们在2017年在安装标志之前的四个热点中找到了30个死龟,并且在安装了标志后2018年的27次。 在安装标志后,在路上遇到的乌龟数量没有显着变化(χ21= 1.1,p> 0.2)。 虽然乌龟警告标志可能会提醒一些司机,但它们不应被视为更替代更有效的道路缓解工具,例如野生动物围栏和交叉结构。

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