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Prioritizing global conservation efforts.

机译:优先考虑全球保护工作。

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摘要

One of the most pressing issues facing the global conservation community is how to distribute limited resources between regions identified as priorities for biodiversity conservation. Approaches such as biodiversity hotspots, endemic bird areas and ecoregions are used by international organizations to prioritize conservation efforts globally. Although identifying priority regions is an important first step in solving this problem, it does not indicate how limited resources should be allocated between regions. Here we formulate how to allocate optimally conservation resources between regions identified as priorities for conservation--the 'conservation resource allocation problem'. Stochastic dynamic programming is used to find the optimal schedule of resource allocation for small problems but is intractable for large problems owing to the "curse of dimensionality". We identify two easy-to-use and easy-to-interpret heuristics that closely approximate the optimal solution. We also show the importance of both correctly formulating the problem and using information on how investment returns change through time. Our conservation resource allocation approach can be applied at any spatial scale. We demonstrate the approach with an example of optimal resource allocation among five priority regions in Wallacea and Sundaland, the transition zone between Asia and Australasia.
机译:全球保护界面临的最紧迫的问题之一是如何在确定为生物多样性保护重点的区域之间分配有限的资源。国际组织使用诸如生物多样性热点地区,特有鸟类地区和生态区之类的方法来优先考虑全球保护工作。尽管确定优先区域是解决此问题的重要的第一步,但它并未指出应如何在区域之间分配有限的资源。在这里,我们制定了如何在被确定为保护重点的区域之间最佳分配保护资源的``保护资源分配问题''。随机动态规划用于为小问题找到最佳的资源分配计划,但由于“维数的诅咒”,对于大问题很难解决。我们确定了两种易于使用和易于解释的启发式方法,它们与最佳解决方案非常接近。我们还显示了正确制定问题并使用有关投资回报如何随时间变化的信息的重要性。我们的保护资源分配方法可以应用于任何空间规模。我们以在华莱士和桑达兰群岛(亚洲与澳大拉西亚之间的过渡带)的五个优先区域之间的最佳资源分配为例,演示了该方法。

著录项

  • 来源
    《Nature》 |2006年第7082期|P.337-340|共4页
  • 作者单位

    The Ecology Centre, Schools of Integrative Biology and Physical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia. k.wilson2@uq.edu.au;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 基础医学;
  • 关键词

    Personal priorities; heuristics; Approaches; Oceania;

    机译:个人优先级;启发式;方法;大洋洲;

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