Abstract Threats to biodiversity are well documented. However, to effectively conserve species and their habitats, we need to know which conservation interventions do (or do not) work. Evidence-based conservation evaluates interventions within a scientific framework. The Conservation Evidence project has summarized thousands of studies testing conservation interventions and compiled these as synopses for various habitats and taxa. In the present article, we analyzed the interventions assessed in the primate synopsis and compared these with other taxa. We found that despite intensive efforts to study primates and the extensive threats they face, less than 1% of primate studies evaluated conservation effectiveness. The studies often lacked quantitative data, failed to undertake postimplementation monitoring of populations or individuals, or implemented several interventions at once. Furthermore, the studies were biased toward specific taxa, geographic regions, and interventions. We describe barriers for testing primate conservation interventions and propose actions to improve the conservation evidence base to protect this endangered and globally important taxon.

中文翻译：

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严重缺乏证据限制了世界灵长类动物的有效保护

摘要 对生物多样性的威胁已被充分记录。然而，为了有效地保护物种及其栖息地，我们需要知道哪些保护干预措施有效（或无效）。循证保护在科学框架内评估干预措施。保护证据项目总结了数千项测试保护干预措施的研究，并将这些研究汇编为各种栖息地和分类群的概要。在本文中，我们分析了灵长类动物概要中评估的干预措施，并将其与其他分类群进行了比较。我们发现，尽管对灵长类动物及其面临的广泛威胁进行了大量研究，但只有不到 1% 的灵长类动物研究评估了保护有效性。这些研究往往缺乏定量数据，未能对人群或个人进行实施后监测，或同时实施多项干预措施。此外，这些研究偏向于特定的分类群、地理区域和干预措施。我们描述了测试灵长类动物保护干预措施的障碍，并提出了改善保护证据基础的行动，以保护这种濒临灭绝的全球重要分类群。