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在英国野生动物与车辆碰撞风险的背景下,量化无道路地区和碎片化
Sarah Raymond1, Elizabeth A Chadwick2, Sarah E Perkins2
1The Sir Martin Evans Building, School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK. raymondsc@cardiff.ac.uk.
Scientific reports
|February 18, 2026
概括
道路碎片 英国大不列颠
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 景观生态学 景观生态学
背景情况:
- 道路对野生动物造成重大直接和间接的生态影响,包括死亡率和息地碎片化.
- 这些影响扩展到"道路影响区",减少了附近地区对野生动物的价值.
- 没有道路的地区提供了潜在的避难所,以避免道路冲击,这对保护至关重要.
研究的目的:
- 量化英国无路地块的数量,分布和生态状况.
- 评估这些无道路地区与受保护土地指定的重叠情况.
- 评估没有道路的地区在分散的景观中作为野生动物的避难所的潜力.
主要方法:
- 在100米,500米和1000米距离大不列颠道路网络的道路影响区.
- 量化了由此产生的无路地块的数量和尺寸分布.
- 评估了无路区和保护区之间的重叠情况,并分析了与生态状况相关的补丁大小.
主要成果:
- 景观高度碎片化,在所有道路影响区大小中,有许多小的无路地块.
- 一个1000米的道路效应区只剩下20.6%的土地没有道路,超过70%的土地小于1平方公里.
- 超过60%的无路区 (1公里区) 比英国常见哺乳动物的家园范围小,增加了碰撞风险.
- 几乎一半 (47%) 的无路区与保护区重叠,但较小的区域生态状况较差.
结论:
- 道路网络严重分裂英国成许多小的无路地块,限制了它们作为野生动物保护区的有效性.
- 大多数没有道路的地区太小,无法支持许多物种的可行的种群,造成风险.
- 提供无道路地区的开放访问地图作为保护工具,以协助景观去碎片化工作.
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