Consistent stabilizing effects of plant diversity across spatial scales and climatic gradients
Consistent stabilizing effects of plant diversity across spatial scales and climatic gradients
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植物多样性在空间尺度和气候梯度上的稳定作用
DOI：
10.1038/s41559-022-01868-y
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发表时间：
2022-09-19
影响因子：
16.8
通讯作者：
Wang, Shaopeng
中科院分区：
文献类型：
--
作者：
Liang, Maowei;Baiser, Benjamin;Wang, Shaopeng
生物多样性已被广泛记录，以加强当地社区的稳定，但生物多样性的这种稳定作用是否扩大到更广泛的规模仍然难以捉摸。在这里，我们调查了天然植物群落的生物多样性和群落稳定性之间的关系，从样方（1 m（2））到样方（400 m（2））和区域（5-214 km（2））的尺度和广泛的气候条件下，使用广泛的植物群落数据集从国家生态观测站网络。我们发现，植物多样性在三个嵌套的空间尺度和气候梯度上对总群落丰度提供了一致的稳定作用。生物多样性的稳定作用的强度随着空间尺度的增加而适度增加，随着降水季节性的增加而减少。我们的研究结果说明了多样性稳定性理论在不同尺度和气候梯度上的普遍性，这为理解生态系统对生物多样性和气候变化的响应提供了一个强大的框架。作者分析了来自美国国家生态观测网络（氖）的6,000多个植物物种，表明植物多样性在不同空间尺度和广泛的生态气候域上稳定了群落丰富度，稳定效果的强度随着规模而增加。
Biodiversity has widely been documented to enhance local community stability but whether such stabilizing effects of biodiversity extend to broader scales remains elusive. Here, we investigated the relationships between biodiversity and community stability in natural plant communities from quadrat (1 m(2)) to plot (400 m(2)) and regional (5-214 km(2)) scales and across broad climatic conditions, using an extensive plant community dataset from the National Ecological Observatory Network. We found that plant diversity provided consistent stabilizing effects on total community abundance across three nested spatial scales and climatic gradients. The strength of the stabilizing effects of biodiversity increased modestly with spatial scale and decreased as precipitation seasonality increased. Our findings illustrate the generality of diversity-stability theory across scales and climatic gradients, which provides a robust framework for understanding ecosystem responses to biodiversity and climate changes.Analysing >6,000 plant species from plots across the US National Ecological Observatory Network (NEON), the authors show that plant diversity consistently stabilizes community abundance across spatial scales and broad ecoclimatic domains, with the strength of the stabilizing effect increasing with scale.