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Marshalling existing biodiversity data to evaluate biodiversity status and trends in planning exercises

机译：整理现有的生物多样性数据以评估规划活动中的生物多样性状况和趋势

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A thorough understanding of biodiversity sta tus and trends through time is necessary for decision-making at regional, national, and subnational levels. Information readily available in databases allows for development of scenarios of species distribution in relation to habitat changes. Existing species occurrence data are biased towards some taxonomic groups (espe cially vertebrates), and are more complete for Europe and North America than for the rest of the world. We outline a procedure for development of such biodiversity scenarios using available data on species distribution derived from primary biodiversity data and habitat conditions, and analytical software, which allows esti mation of species' distributions, and forecasting of likely effects of various agents of change on the distribution and status of the same species. Such approaches can translate into improved knowledge for countries regarding the 2010 Biodiversity Target of reducing sig nificantly the rate of biodiversity loss - indeed, using methodologies such as those illustrated herein, many countries should be capable of analyzing trends of change for at least part of their biodiversity. Sources of errors that are present in primary biodiversity data and that can affect projections are discussed.
机译：对于区域，国家和国家以下各级的决策，必须全面了解生物多样性的状态和趋势。数据库中容易获得的信息可用于制定与栖息地变化有关的物种分布情况。现有物种发生数据偏向某些生物分类群（尤其是脊椎动物），并且与世界其他地区相比，欧洲和北美更为完整。我们概述了使用从原始生物多样性数据和栖息地条件获得的物种分布的可用数据以及分析软件来开发此类生物多样性情景的程序，该软件可以估算物种的分布，并预测各种变化因素对生物多样性的可能影响。同一物种的分布和状况。此类方法可为各国带来有关大幅降低生物多样性丧失速度的2010年生物多样性目标的知识-实际上，使用本文所述方法，许多国家应至少能够分析其变化趋势生物多样性。讨论了主要生物多样性数据中存在的，可能影响预测的误差来源。

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