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利用荒野地区可使陆地物种多样性灭绝风险减半
2019-09-19 14:07

澳大利亚布里斯班杜顿公园生态科学区的Moreno Di Marco等研究人员发现,利用荒野地区能够将陆地生物多样性的灭绝风险减半。相关论文2019年9月18日在线发表于《自然》杂志。

研究人员模拟生物多样性的持久性概率,将栖息地条件与物种组成的空间变化相结合,以表明保留这些剩余的荒野区域对于国际保护议程至关重要。荒野地区可以缓解物种损失,因为荒野群体内物种的灭绝风险平均不到非荒野群体物种的一半。虽然所有荒野地区都具有本身的保护价值,但研究人员确定了每个大陆上对生物多样性持续存在最大相对贡献的区域。令人担忧的是,栖息地丧失对生物多样性产生更明显影响的这些地区受到的保护很差。鉴于全球较高的荒野损失率,这些地区迫切需要有针对性的保护,从而确保生物多样性的长期持续性,并需要为保护和恢复更为退化环境做出努力。

研究人员表示,降低全球生物多样性丧失的速率是人类面临的一项重大挑战,因为生物毁灭的后果对人类来说是不可逆转的。虽然生态系统的持续退化和构成它们的物种的灭绝现在已有很好的记录,但对于荒野地区在缓解全球生物多样性危机方面的作用知之甚少。

附:英文原文

Title: Wilderness areas halve the extinction risk of terrestrial biodiversity

Author: Moreno Di Marco, Simon Ferrier, Tom D. Harwood, Andrew J. Hoskins & James E. M. Watson 

Issue&Volume: 18 September 2019

Abstract:

Reducing the rate of global biodiversity loss is a major challenge facing humanity1, as the consequences of biological annihilation would be irreversible for humankind2,3,4. Although the ongoing degradation of ecosystems5,6 and the extinction of species that comprise them7,8 are now well-documented, little is known about the role that remaining wilderness areas have in mitigating the global biodiversity crisis. Here we model the persistence probability of biodiversity, combining habitat condition with spatial variation in species composition, to show that retaining these remaining wilderness areas is essential for the international conservation agenda. Wilderness areas act as a buffer against species loss, as the extinction risk for species within wilderness communities is—on average—less than half that of species in non-wilderness communities. Although all wilderness areas have an intrinsic conservation value9,10, we identify the areas on every continent that make the highest relative contribution to the persistence of biodiversity. Alarmingly, these areas—in which habitat loss would have a more-marked effect on biodiversity—are poorly protected. Given globally high rates of wilderness loss10, these areas urgently require targeted protection to ensure the long-term persistence of biodiversity, alongside efforts to protect and restore more-degraded environments.

DOI: 10.1038/s41586-019-1567-7

Source:https://www.nature.com/articles/s41586-019-1567-7

Nature:《自然》,创刊于1869年。隶属于施普林格·自然出版集团,最新IF:43.07
官方网址:http://www.nature.com/
投稿链接:http://www.nature.com/authors/submit_manuscript.html


本期文章:《自然》:Online/在线发表

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