Protected areas (PAs) are a key tool in efforts to safeguard biodiversity against increasing anthropogenic threats. As signatories to the 2011–2020 Strategic Plan for Biodiversity, 196 nations pledged support for expansion in the extent of the global PA estate and the quality of PA management. While this has resulted in substantial increases in PA designations, many sites lack the resources needed to guarantee effective biodiversity conservation. Using management reports from 2167 PAs (with an area representing 23% of the global terrestrial PA estate), we demonstrate that less than a quarter of these PAs report having adequate resources in terms of staffing and budget. Using data on the geographic ranges of the 11,919 terrestrial vertebrate species overlapping our sample of PAs, we estimate that only 4–9% of terrestrial amphibians, birds, and mammals are sufficiently represented within the existing global PA estate, when only adequately resourced PAs are considered. While continued expansion of the world's PAs is necessary, a shift in emphasis from quantity to quality is critical to effectively respond to the current biodiversity crisis.

中文翻译：

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保护区资源的普遍短缺破坏了保护生物多样性的努力

保护区 (PA) 是努力保护生物多样性免受日益增加的人为威胁的关键工具。作为 2011-2020 年生物多样性战略计划的签署国，196 个国家承诺支持扩大全球保护区范围和保护区管理质量。虽然这导致保护区名称大幅增加，但许多地点缺乏保证有效生物多样性保护所需的资源。使用来自 2167 个 PA（其面积占全球陆地 PA 资产的 23%）的管理报告，我们证明这些 PA 中只有不到四分之一报告在人员配备和预算方面拥有足够的资源。使用与我们的 PA 样本重叠的 11,919 种陆生脊椎动物物种的地理范围数据，我们估计只有 4-9% 的陆生两栖动物、鸟类、当仅考虑资源充足的保护区时，哺乳动物在现有的全球保护区内得到充分代表。虽然世界保护区的持续扩张是必要的，但重点从数量转向质量对于有效应对当前的生物多样性危机至关重要。