Quantifying ecological impacts and long-term sustainability of The Cheshire Beaver Project

由于人类活动，欧亚海狸（蓖麻纤维）从英国大陆消失了。最近一些备受瞩目的项目表明，海狸是有益的栖息地改进者，这推动了海狸的重新引入。在这些发展的基础上，柴郡海狸项目正在进行科学监测的重新引入试验，目的是利用海狸进行自然过程驱动的栖息地管理。作为第一步，海狸将被释放到一个围栏区域，该区域毗邻水质下降和受到威胁的泥炭地栖息地的特别安全保护区。据预测，海狸有多种生态效益，包括增加生物多样性和减少入侵物种。它们的释放对改善放归地点的水质，以及加强邻近的具特殊意义水域的保育状况，均有重大的潜力。利用生态调查技术，实验室分析和数据建模，该项目将调查四个总体主题：1)生物多样性的变化，包括入侵物种的减少，2)潜在的水质改善，3)对海狸行为，健康和福利的非侵入性监测，以及4)建模预测未来海狸释放的长期成功和在柴郡建立自我维持的海狸种群的潜力。由于人类活动，欧亚海狸（蓖麻纤维）从英国大陆消失了。最近一些备受瞩目的项目表明，海狸是有益的栖息地改进者，这推动了海狸的重新引入。在这些发展的基础上，柴郡海狸项目正在进行科学监测的重新引入试验，目的是利用海狸进行自然过程驱动的栖息地管理。作为第一步，海狸将被释放到一个围栏区域，该区域毗邻水质下降和受到威胁的泥炭地栖息地的特别安全保护区。据预测，海狸有多种生态效益，包括增加生物多样性和减少入侵物种。它们的释放对改善放归地点的水质，以及加强邻近的具特殊意义水域的保育状况，均有重大的潜力。博士学位的目标包括：-分析和添加海狸重新引入地点和邻近地区的生态调查数据集，测试预测生物多样性增加和入侵物种减少的证据。-测试放归地点的水质预期改善情况，以及放归地点所流入的邻近特别安全地点。-开发和应用非侵入性技术，监测在人口密度增加的封闭地区的海狸的行为、健康和福利，为利益相关者的管理决策提供信息。-基于i)栖息地适宜性和连通性，以及ii)种群生存能力，在一系列重新引入情景和管理策略下，对与该项目相关的未来河狸释放的预期长期成功，以及建立自我维持种群的潜力进行建模。该项目解决了保护受威胁的泥炭地栖息地的迫切需要，这对捕获和储存碳尤其重要。海狸的重新引入为这些栖息地的恢复和改善提供了巨大的潜力。学生将测试这种方法的效用和长期可持续性，以促进健康的泥炭地栖息地。

The Eurasian beaver (Castor fiber) was lost from mainland Britain due to human activities. Its reintroduction is now gaining momentum, driven by recent high-profile projects demonstrating the role of beavers as beneficial habitat-modifiers. Building on these developments, the Cheshire Beaver Project is conducting a scientifically monitored trial reintroduction, with the aim of utilising beavers for natural process driven habitat management. As a first step, beavers will be released into a fenced area, adjacent to an SSSI with declining water quality and threatened peatland habitats. The beavers are predicted to have multiple ecological benefits, including an increase in biodiversity and reduction in invasive species. Their release offers significant potential both to improve water quality at the reintroduction site, and to enhance the conservation status of the adjacent SSSI. Using ecological surveying techniques, laboratory analysis, and data modelling, this project will investigate four over-arching topics: 1) changes in biodiversity including reductions in invasive species, 2) potential water quality improvements, 3) non-invasive monitoring of beaver behaviour, health and welfare, and 4) modelling the projected long-term success of future beaver releases and of the potential for establishing self-sustaining beaver populations in Cheshire.The Eurasian beaver (Castor fiber) was lost from mainland Britain due to human activities. Its reintroduction is now gaining momentum, driven by recent high-profile projects demonstrating the role of beavers as beneficial habitat-modifiers. Building on these developments, the Cheshire Beaver Project is conducting a scientifically monitored trial reintroduction, with the aim of utilising beavers for natural process driven habitat management. As a first step, beavers will be released into a fenced area, adjacent to an SSSI with declining water quality and threatened peatland habitats. The beavers are predicted to have multiple ecological benefits, including an increase in biodiversity and reduction in invasive species. Their release offers significant potential both to improve water quality at the reintroduction site, and to enhance the conservation status of the adjacent SSSI. Objectives of the PhD include:- Analyse and add to ecological survey datasets for the beaver reintroduction site and adjacent areas, testing for evidence of predicted increases in biodiversity and reductions in invasive species.- Test for predicted improvements in water quality at the reintroduction site and adjacent SSSI into which it flows. - Develop and apply non-invasive techniques for monitoring the behaviour, health and welfare of beavers in enclosed areas as population density increases, to inform stakeholder management decisions. - Model the projected long-term success of future beaver releases linked to the project, and potential for establishment of self-sustaining populations, based on i) habitat suitability and connectivity, and ii) population viability, under a range of reintroduction scenarios and management strategies. The project addresses an urgent need to conserve threatened peatland habitats, which are particularly important for capturing and storing carbon. The reintroduction of beavers offers significant potential for the restoration and enhancement of such habitats. The student will test the utility and long-term sustainability of this approach for promoting healthy peatland habitats.