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Global evidence of positive biodiversity effects on spatial ecosystem stability in natural grasslands.
Nature Communications ( IF 14.7 ) Pub Date : 2019-07-19 , DOI: 10.1038/s41467-019-11191-z Yongfan Wang 1 , Marc W Cadotte 2, 3 , Yuxin Chen 1 , Lauchlan H Fraser 4 , Yuhua Zhang 1, 5 , Fengmin Huang 1 , Shan Luo 1 , Nayun Shi 1 , Michel Loreau 6
Nature Communications ( IF 14.7 ) Pub Date : 2019-07-19 , DOI: 10.1038/s41467-019-11191-z Yongfan Wang 1 , Marc W Cadotte 2, 3 , Yuxin Chen 1 , Lauchlan H Fraser 4 , Yuhua Zhang 1, 5 , Fengmin Huang 1 , Shan Luo 1 , Nayun Shi 1 , Michel Loreau 6
Affiliation
The effect of biodiversity on primary productivity has been a hot topic in ecology for over 20 years. Biodiversity-productivity relationships in natural ecosystems are highly variable, although positive relationships are most common. Understanding the conditions under which different relationships emerge is still a major challenge. Here, by analyzing HerbDivNet data, a global survey of natural grasslands, we show that biodiversity stabilizes rather than increases plant productivity in natural grasslands at the global scale. Our results suggest that the effect of species richness on productivity shifts from strongly positive in low-productivity communities to strongly negative in high-productivity communities. Thus, plant richness maintains community productivity at intermediate levels. As a result, it stabilizes plant productivity against environmental heterogeneity across space. Unifying biodiversity-productivity and biodiversity-spatial stability relationships at the global scale provides a new perspective on the functioning of natural ecosystems.
中文翻译:
生物多样性对天然草地空间生态系统稳定性产生积极影响的全球证据。
20多年来,生物多样性对初级生产力的影响一直是生态学的热门话题。尽管积极关系是最常见的,但自然生态系统中的生物多样性-生产力关系变化很大。理解出现不同关系的条件仍然是一个重大挑战。在这里,通过分析HerbDivNet数据(一项对天然草地的全球调查),我们发现,在全球范围内,生物多样性稳定而不是提高了天然草地的植物生产力。我们的结果表明,物种丰富度对生产力的影响从低生产力社区的强正向高生产力社区的强负向转变。因此,植物丰富度将社区生产力维持在中等水平。因此,它可以稳定工厂的生产力,防止跨空间的环境异质性。在全球范围内统一生物多样性生产力和生物多样性空间稳定关系,为自然生态系统的功能提供了新的视角。
更新日期:2019-07-19
中文翻译:
生物多样性对天然草地空间生态系统稳定性产生积极影响的全球证据。
20多年来,生物多样性对初级生产力的影响一直是生态学的热门话题。尽管积极关系是最常见的,但自然生态系统中的生物多样性-生产力关系变化很大。理解出现不同关系的条件仍然是一个重大挑战。在这里,通过分析HerbDivNet数据(一项对天然草地的全球调查),我们发现,在全球范围内,生物多样性稳定而不是提高了天然草地的植物生产力。我们的结果表明,物种丰富度对生产力的影响从低生产力社区的强正向高生产力社区的强负向转变。因此,植物丰富度将社区生产力维持在中等水平。因此,它可以稳定工厂的生产力,防止跨空间的环境异质性。在全球范围内统一生物多样性生产力和生物多样性空间稳定关系,为自然生态系统的功能提供了新的视角。