Macroecological rules predict how biomass scales with species richness in nature

IF 45.8 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Pub Date : 2025-03-20 DOI:10.1126/science.adq3278

Alex L. Pigot, Laura E. Dee, Anthony J. Richardson, Declan L. M. Cooper, Nico Eisenhauer, Richard D. Gregory, Simon L. Lewis, Callum J. Macgregor, Dario Massimino, Daniel S. Maynard, Helen R. P. Phillips, Marina Rillo, Michel Loreau, Bart Haegeman

引用次数: 0

Abstract

Despite advances in theory and experiments, how biodiversity influences the structure and functioning of natural ecosystems remains debated. By applying new theory to data on 84,695 plant, animal, and protist assemblages, we show that the general positive effect of species richness on stocks of biomass, as well as much of the variation in the strength and sign of this effect, is predicted by a fundamental macroecological quantity: the scaling of species abundance with body mass. Standing biomass increases with richness when large-bodied species are numerically rare but is independent of richness when species size and abundance are uncoupled. These results suggest a new fundamental law in the structure of ecological communities and show that the impacts of changes in species richness on biomass are predictable.

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宏观生态规律预测了自然界中生物量与物种丰富度的关系。

尽管在理论和实验方面取得了进展，但生物多样性如何影响自然生态系统的结构和功能仍然存在争议。通过将新理论应用于84,695种植物、动物和原生生物组合的数据，我们表明物种丰富度对生物量储量的总体积极影响，以及这种影响的强度和标志的变化，可以通过一个基本的宏观生态量来预测：物种丰富度与体重的标度。当大体物种数量稀少时，直立生物量随丰富度增加，但当物种大小和丰度不耦合时，直立生物量与丰富度无关。这些结果提示了生态群落结构的一个新的基本规律，并表明物种丰富度变化对生物量的影响是可预测的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science 综合性期刊-综合性期刊

CiteScore

61.10

自引率

0.90%

发文量

审稿时长

2.1 months

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