Invasive predators and global biodiversity loss
Invasive predators and global biodiversity loss
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DOI：
10.1073/pnas.1602480113
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发表时间：
2016-10-04
影响因子：
11.1
通讯作者：
Dickman, Chris R.
中科院分区：
文献类型：
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作者：
Doherty, Tim S.;Glen, Alistair S.;Dickman, Chris R.
入侵物种威胁着全球生物多样性，而入侵性哺乳动物捕食者的破坏性尤其严重，导致物种数量大幅减少和灭绝。我们对这些影响进行了全球荟萃分析，并揭示了它们的全部程度。入侵性捕食者与87种鸟类、45种哺乳动物和10种爬行动物物种的灭绝有关，占全球这些群体当代灭绝的58%。这些数字可能被低估了，因为我们评估的23种极度濒危物种被列为“可能灭绝”。“入侵性哺乳动物捕食者危及另外596种濒临灭绝的物种，其中猫，啮齿动物，狗和猪威胁着大多数物种。最容易受到捕食者威胁的物种具有高度的进化独特性，并居住在孤立的环境中。因此，入侵性哺乳动物捕食者是全球系统发育多样性不可逆转损失的重要驱动因素。大多数受影响的物种都是岛屿物种，这表明管理岛屿上的入侵捕食者应该是全球保护的优先事项。了解和减轻入侵性哺乳动物捕食者的影响对于降低全球生物多样性丧失的速度至关重要。
Invasive species threaten biodiversity globally, and invasive mammalian predators are particularly damaging, having contributed to considerable species decline and extinction. We provide a global metaanalysis of these impacts and reveal their full extent. Invasive predators are implicated in 87 bird, 45 mammal, and 10 reptile species extinctions-58% of these groups' contemporary extinctions worldwide. These figures are likely underestimated because 23 critically endangered species that we assessed are classed as "possibly extinct." Invasive mammalian predators endanger a further 596 species at risk of extinction, with cats, rodents, dogs, and pigs threatening the most species overall. Species most at risk from predators have high evolutionary distinctiveness and inhabit insular environments. Invasive mammalian predators are therefore important drivers of irreversible loss of phylogenetic diversity worldwide. That most impacted species are insular indicates that management of invasive predators on islands should be a global conservation priority. Understanding and mitigating the impact of invasive mammalian predators is essential for reducing the rate of global biodiversity loss.