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How to Build an Efficient Conservation Fence

机译：如何建立有效的保护栅栏

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摘要

Barriers are used to achieve diverse objectives in conservation and biosecurity. In conservation management, fences are often erected to exclude introduced predators and to contain diseased animals or invasive species. Planning an efficient conservation fence involves a number of decisions, including the size and design of the enclosure. We formulated the first general framework for building a fence that minimizes long-term management costs by balancing the expense of constructing a more secure barrier against the costs of coping with more frequent failures. The approach systematically considers the range of potential solutions to a well-defined fencing problem and results in a solution that maximizes conservation return on investment.We illustrated thismethod by designing efficient fences to address two different conservation goals: exclusion of invasive predators from populations of threatened eastern barred bandicoots (Perameles gunnii) and maintenance of isolated populations of healthy Tasmanian devils (Sarcophilus harrisii). A systematic approach to conservation fencing allows the best fence design to be chosen quantitatively and defensibly. It also facilitates conservation decisions at a strategic level by allowing fencing to be compared transparently with alternative conservation management actions.
机译：屏障用于实现保护和生物安全方面的多样化目标。在保护管理中，通常会竖起篱笆，以排除引入的捕食者，并容纳患病的动物或入侵物种。规划高效的保护栅栏涉及许多决定，包括围栏的尺寸和设计。我们制定了第一个通用框架，该框架通过平衡构建更安全的屏障的费用与应对更频繁的故障的费用之间的平衡，从而将长期管理成本降至最低。该方法系统地考虑了明确定义的栅栏问题的潜在解决方案的范围，并得出了使保护投资回报最大化的解决方案。我们通过设计有效的围栏以解决两个不同的保护目标来说明了该方法：将入侵性掠食者从受威胁的种群中排除东部禁止的土匪（Perameles gunnii）和维持健康的塔斯马尼亚恶魔（Sarcophilus harrisii）的孤立种群。一种系统化的保护栅栏方法可以定量，可靠地选择最佳的围栏设计。通过将围栏与替代性养护管理措施进行透明比较，它还有助于在战略层面上进行养护决策。

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