Buffering effects of soil seed banks on plant community composition in response to land use and climate-猫眼课题宝

DOI：

10.1111/geb.13201

发表时间：

2020-10

期刊：

Global Ecology and Biogeography

影响因子：

6.4

通讯作者：

中科院分区：

环境科学与生态学1区

文献类型：

作者：

J. Plue;H. Van Calster;Inger Auestad;Sofía Basto;R. Bekker;H. H. Bruun-H.;R. Chevalier;G. Decocq;U. Grandin;M. Hermy;H. Jacquemyn;Anna Jakobsson;M. Jankowska‐Błaszczuk;Rein Kalamees;M. Koch;R. Marrs;Bryndís Marteinsdóttir;P. Milberg;I. Måren;R. Pakeman;G. Phoenix;K. Thompson;V. Vandvik;M. Wagner;A. Auffret

目的：气候和土地利用是生物多样性的关键决定因素，过去和持续的变化对全球生态系统构成严重威胁。与大多数其他生物群体不同，植物物种可以拥有休眠的生活史阶段，如土壤种子库，这可能有助于植物群落抵御或至少推迟全球变化的不利影响。本研究探讨了土壤种子库实现这一目标的潜力。地点：欧洲。时间段：1978-2014年。研究的主要分类群：开花植物。研究方法：使用空间换时间/变暖的方法，我们研究了2,796个社区样地的草本层和土壤种子库中的植物物种丰富度和组成，这些样地来自54个数据集，分布在管理的草原、森林和跨气候梯度的中间演替生境中。结果：土壤种子库比草本层拥有更多的物种，在不同生境中的组成相似。物种丰富度较低的森林和演替的栖息地相比，草地，与年平均温度的决定丰富度更重要的年温差。气候和土地利用的影响一般不太明显，当植物群落丰富度包括种子库物种丰富度，而没有明确的影响，土地利用和气候的种子库和草本层之间的成分相似性。主要结论：草本层和种子库植物群落之间的高种子库多样性和组成相似性可能提供了一个潜在的重要功能缓冲区，对正在进行的环境变化对植物群落的影响。然而，这种能力可能是由气候变暖造成的。休眠植物的生活史在改变植物群落中潜在的观测时滞中起着重要作用

Aim: Climate and land use are key determinants of biodiversity, with past and ongoing changes posing serious threats to global ecosystems. Unlike most other organism groups, plant species can possess dormant life-history stages such as soil seed banks, which may help plant communities to resist or at least postpone the detrimental impact of global changes. This study investigates the potential for soil seed banks to achieve this. Location: Europe. Time period: 1978–2014. Major taxa studied: Flowering plants. Methods: Using a space-for-time/warming approach, we study plant species richness and composition in the herb layer and the soil seed bank in 2,796 community plots from 54 datasets in managed grasslands, forests and intermediate, successional habitats across a climate gradient. Results: Soil seed banks held more species than the herb layer, being compositionally similar across habitats. Species richness was lower in forests and successional habitats compared to grasslands, with annual temperature range more important than mean annual temperature for determining richness. Climate and land-use effects were generally less pronounced when plant community richness included seed bank species richness, while there was no clear effect of land use and climate on compositional similarity between the seed bank and the herb layer. Main conclusions: High seed bank diversity and compositional similarity between the herb layer and seed bank plant communities may provide a potentially important functional buffer against the impact of ongoing environmental changes on plant communities. This capacity could, however, be by climate warming. Dormant life-history be of in changing potentially observed time-lags in plant community

Buffering effects of soil seed banks on plant community composition in response to land use and climate

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