When corridors collide: Road-related disturbance in commuting bats
When corridors collide: Road-related disturbance in commuting bats
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DOI：
10.1002/jwmg.467
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发表时间：
2013-01-01
影响因子：
2.3
通讯作者：
Zurcher, Arthur A.
中科院分区：
文献类型：
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作者：
Bennett, Victoria J.;Zurcher, Arthur A.
作为景观中日益占主导地位的特征，运输走廊正成为蝙蝠的主要关注点。虽然野生动物车辆碰撞被认为是死亡的主要来源，但道路对蝙蝠种群的其他负面影响现在才被认识到。最近的研究表明，蝙蝠和许多其他野生动物一样，会避开道路，而不是穿过它们。其结果是，道路充当了行动的障碍或过滤器，限制了蝙蝠获得关键资源。我们的目标是评估特定的功能沿着通勤路线，道路，或周围的景观（单独或组合），加剧或减轻的可能性，通勤蝙蝠表现出回避行为，以应对接近的车辆。在5条被道路一分为二的常用通勤路线上，我们收集了关于沿着道路行驶的车辆（如可见度和可听度）、通勤蝙蝠（如高度）和通勤路线组成的数据。我们发现，通勤路线结构决定了蝙蝠沿着它们的通勤路线折返并避开道路的频率。我们发现，差距（>2？m）在通勤路线上，如道路本身，导致蝙蝠在到达道路之前转身离开。此外，我们发现蝙蝠的转向频率随着车辆噪音水平的增加而增加，蝙蝠对车辆做出反应的位置与噪音水平最高的区域相对应，包括间隙
As an increasingly dominant feature in the landscape, transportation corridors are becoming a major concern for bats. Although wildlifevehicle collisions are considered to be a major source of mortality, other negative implications of roads on bat populations are just now being realized. Recent studies have revealed that bats, like many other wildlife species, will avoid roads rather than cross them. The consequence is that roads act as barriers or filters to movement, restricting bats from accessing critical resources. Our objective was to assess specific features along the commuting route, road, or surrounding landscape (alone or in combination) that exacerbated or alleviated the likelihood of a commuting bat exhibiting an avoidance behavior in response to an approaching vehicle. At 5 frequently used commuting routes bisected by roads, we collected data on vehicles travelling along the roads (such as visibility and audibility), commuting bats (such as height), and composition of the commuting route. We revealed that commuting route structure dictated the frequency at which bats turned back along their commuting routes and avoided the road. We found that gaps (>2?m) in commuting routes, such as the road itself, caused bats to turn away just before they reached the road. Furthermore, we found that turning frequencies of bats increased with vehicle noise levels and the locations at which bats responded to vehicles corresponded with areas where noise levels were greatest, including gaps