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Poor protection of amphibian evolutionary history reveals opportunities for global protected areas
bioRxiv - Evolutionary Biology Pub Date : 2020-10-16 , DOI: 10.1101/2020.10.15.338061
Jasmin Upton , Claudia L. Gray , Benjamin Tapley , Kris A. Murray , Rikki Gumbs

As habitat loss is a major driver of amphibian population declines, protected areas (PAs) can play a crucial role in amphibian conservation. Documenting how well the global PA network captures the evolutionary history of amphibians can inform conservation prioritisation and action. We conducted a phylogenetic gap analysis to assess the extent to which amphibian phylogenetic diversity (PD) is unprotected by the PA network and compared this to other terrestrial vertebrate groups. 78% of amphibian species and 64% of global amphibian PD remains unprotected, which is higher than corresponding figures for squamates, mammals and birds. Amongst amphibians, salamanders were the least well protected, with 78% of PD unprotected, compared with 64% for caecilians and 63% for frogs. We identify areas that offer the greatest opportunity to capture unprotected amphibian evolutionary history. We could capture an additional 29.4% of amphibian PD, representing 40 billion years of evolutionary history, by protecting an additional 1.9% of global amphibian distributions (1.74% of global land area) and increasing the restrictions in 0.6% of amphibian distributions to match the management objectives of PAs in IUCN categories I or II. Importantly, we found that the spatial distribution of unprotected PD was correlated across all groups, indicating that expanding the PA network to conserve amphibian PD can secure imperilled vertebrate diversity more generally.

中文翻译:

两栖动物进化史的保护不力揭示了全球保护区的机遇

由于栖息地的丧失是两栖动物种群减少的主要驱动力,因此保护区(PA)可以在两栖动物保护中发挥关键作用。记录全球PA网络如何很好地捕获两栖动物的进化历史可以为保护的优先次序和行动提供信息。我们进行了系统发育差距分析,以评估两栖类系统发育多样性(PD)不受PA网络保护的程度,并将其与其他陆生脊椎动物群体进行比较。78%的两栖动物和64%的全球两栖动物PD仍未受到保护,高于相应的鳞茎,哺乳动物和鸟类的数字。在两栖动物中,sal保护得最差,PD未受保护的比例为78%,而凯撒人为64%,青蛙为63%。我们确定了提供最大机会捕获未受保护的两栖动物进化史的地区。我们可以通过保护另外1.9%的全球两栖动物分布(占全球土地面积的1.74%)并增加0.6%的两栖动物分布的限制来与之相匹配,来捕获另外29.4%的两栖动物PD,代表400亿年的进化历史。自然保护联盟第一或第二类保护区的管理目标。重要的是,我们发现未保护的PD的空间分布在所有群体之间都是相关的,这表明扩大PA网络以保护两栖PD可以更普遍地保护受损的脊椎动物多样性。全球两栖动物分布的9%(占全球土地面积的1.74%),并增加了对两栖动物分布的0.6%的限制,以符合IUCN I或II类保护区的管理目标。重要的是,我们发现未保护的PD的空间分布在所有群体之间都是相关的,这表明扩大PA网络以保护两栖PD可以更普遍地保护受损的脊椎动物多样性。全球两栖动物分布的9%(占全球土地面积的1.74%),并增加了对两栖动物分布的0.6%的限制,以符合IUCN I或II类保护区的管理目标。重要的是,我们发现未保护的PD的空间分布在所有群体之间都是相关的,这表明扩大PA网络以保护两栖PD可以更普遍地保护受损的脊椎动物多样性。
更新日期:2020-10-17
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