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Assessing road effects on bats: the role of landscape, road features, and bat activity on road-kills

机译：评估道路对蝙蝠的影响：景观，道路特征和蝙蝠活动对道路杀害的作用

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摘要

Recent studies suggest that roads can significantly impact bat populations. Though bats are one of the most threatened groups of European vertebrates, studies aiming to quantify bat mortality and determine the main factors driving it remain scarce. Between March 16 and October 31 of 2009, we surveyed road-killed bats daily along a 51-km-long transect that incorporates different types of roads in southern Portugal. We found 154 road-killed bats of 11 species. The two most common species in the study area, Pipistrellus kuhlii and P. pyg-maeus, were also the most commonly identified road-kill, representing 72 % of the total specimens collected. About two-thirds of the total mortality occurred between mid July and late September, peaking in the second half of August. We also recorded casualties of threatened and rare species, including Miniopterus schreibersii, Rhinolo-phus ferrumequinum, R. hipposideros, Barbastella barba-stellus, and Nyctalus leisleri. These species were found mostly in early autumn, corresponding to the mating and swarming periods. Landscape features were the most important variable subset for explaining bat casualties. Road stretches crossing or in the vicinity of high-quality habitats for bats—including dense Mediterranean woodland ("montado") areas, water courses with riparian gallery, and water reservoirs—yielded a significantly higher number of casualties. Additionally, more road-killed bats were recorded on high-traffic road stretches with viaducts, in areas of higher bat activity and near known roosts.
机译：最近的研究表明，道路会严重影响蝙蝠种群。尽管蝙蝠是欧洲脊椎动物中受威胁最大的群体之一，但旨在量化蝙蝠死亡率并确定导致其死亡的主要因素的研究仍然很少。在2009年3月16日至10月31日之间，我们每天调查了一条51公里长的断面的道路灭绝的蝙蝠，该断面包含葡萄牙南部不同类型的道路。我们发现154种11种蝙蝠被杀死。研究区域中最常见的两个物种是Pipistrellus kuhlii和P. pyg-maeus，也是最常被发现的道路杀伤物种，占所收集标本的72％。总死亡率的大约三分之二发生在7月中旬至9月下旬之间，在8月下半月达到峰值。我们还记录了受威胁物种和稀有物种的伤亡情况，其中包括小翅目小轮虫（Miniopterus schreibersii），Rhinolo-phus ferrumequinum，R。hipposideros，Barbastella barba-stellus和Nyctalus leisleri。这些物种主要在秋季初发现，与交配和成群时期相对应。地形特征是解释蝙蝠伤亡最重要的变量子集。跨越或靠近蝙蝠的高质量栖息地的路段-包括茂密的地中海林地（“ montado”）地区，带有河岸廊的水道和水库-造成了大量的人员伤亡。此外，在高流量的高架道路上，高蝙蝠活动区域和已知栖息地附近，记录了更多道路杀害蝙蝠。

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  • 来源
    《Ecological research》 |2013年第2期|227-237|共11页
  • 作者

    Denis Medinas; J. Tiago Marques; Antonio Mira;

  • 作者单位

    Conservation Biology Unit, Department of Biology, University of Evora, Nucleo da Mitra, 7002-554 Evora, Portugal,CIBIO-Research Center in Biodiversity and Genetic Resources, University of Evora, Evora, Portugal ICAAM-Institute of Mediterranean Agrarian and Environmental Sciences, University of Evora, Evora, Portugal;

    Conservation Biology Unit, Department of Biology, University of Evora, Nucleo da Mitra, 7002-554 Evora, Portugal,CBA-Centro de Biologia Ambiental, Faculdade de Ciencias da Universidade de Lisboa, 1700 Lisbon, Portugal;

    Conservation Biology Unit, Department of Biology, University of Evora, Nucleo da Mitra, 7002-554 Evora, Portugal,CIBIO-Research Center in Biodiversity and Genetic Resources, University of Evora, Evora, Portugal ICAAM-Institute of Mediterranean Agrarian and Environmental Sciences, University of Evora, Evora, Portugal;

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  • 正文语种 eng
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  • 关键词

    road-kill modeling; mediterranean landscape; bat activity; phenology; road traffic;

    机译：道路杀伤模型地中海景观;蝙蝠活动;物候学道路交通;

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