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首页> 外文期刊>Conservation Evidence >The response of water voles Arvicola amphibius to 'displacement' when using water draw-down and habitat removal in grazing marsh habitat, lowland England
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The response of water voles Arvicola amphibius to 'displacement' when using water draw-down and habitat removal in grazing marsh habitat, lowland England

机译：在英格兰低地放牧沼泽生境中使用水抽取和生境去除方法时，水田鼠两栖对“位移”的响应

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Displacement is a form of mitigation that involves the removal of habitat to relocate water voles Arvicola amphibius from 50m sections of watercourse where their presence conflicts with small-scale development works. The technique is permitted under license in England to minimise negative impacts of development on water voles that are protected under UK law. Despite its widespread use, displacement as a mitigation tool is controversial due to the paucity of evidence relating to its effectiveness and disparity in the methods used to remove habitat. This study aimed to investigate the response of water voles to displacement when using a combination of water draw-down and vegetation removal. We radio-collared 20 water voles and used recapture data to monitor the movement and fate of individuals at three displacement sites and two control sites located in grazing marsh habitat in England during spring 2017. We found that all voles moved to alternative habitat following the removal of vegetation and water and no individuals were discovered in the works area following a destructive search of burrows seven days later. There was no significant difference between the fate and movement of displaced and control individuals. We conclude that displacement of water voles was effective when using both water draw-down and vegetation removal, but recommend further research is carried out to investigate other potentially confounding factors including population density and habitat type.
机译：流离失所是一种缓解形式，包括搬迁栖息地，将水田鼠科两栖类动物从小于50m的河道中迁移出来，这些地方的生存与小规模开发工作相冲突。该技术已在英格兰获得许可，可最大程度地减少开发对受英国法律保护的水田鼠的负面影响。尽管将其广泛使用，但由于缺乏有关其有效性和在去除栖息地的方法上的差异的证据，流离失所作为缓解工具还是有争议的。这项研究旨在调查水鼠对排水的响应，同时结合了水的抽取和植被的清除。我们对20头水田鼠进行了无线电对比，并使用重获数据监测了2017年春季英格兰英格兰放牧沼泽地中三个流离失所地点和两个控制点的个体的活动和命运。我们发现，所有田鼠在移走后都移到了其他栖息地七天后，通过对洞穴的破坏性搜索，在工作区没有发现任何植被和水。流离失所者和控制者的命运和运动之间没有显着差异。我们得出的结论是，在同时利用水流和去除植被的情况下，水田鼠的移位是有效的，但是建议进行进一步的研究以调查其他潜在的混杂因素，包括人口密度和栖息地类型。

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