Biotic homogenization destabilizes ecosystem functioning by decreasing spatial asynchrony.
Shaopeng Wang,Michel Loreau,Claire de Mazancourt,Forest Isbell,Carl Beierkuhnlein,John Connolly,John Connolly,Douglas H. Deutschman,Jiří Doležal,Jiří Doležal,Nico Eisenhauer,Andy Hector,Anke Jentsch,Jürgen Kreyling,Vojtech Lanta,Vojtech Lanta,Jan Lepš,H. Wayne Polley,Peter B. Reich,Peter B. Reich,Jasper van Ruijven,Bernhard Schmid,David Tilman,Brian J. Wilsey,Dylan Craven +24 more
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In this article, the effects of local biodiversity loss on ecosystem stability are well documented, but the consequences of biodiversity changes at larger spatial scales, in particular biotic homogenization, that is, reduced species turnover across space (β diversity), remain poorly known.Abstract:
Our planet is facing significant changes of biodiversity across spatial scales. Although the negative effects of local biodiversity (α diversity) loss on ecosystem stability are well documented, the consequences of biodiversity changes at larger spatial scales, in particular biotic homogenization, that is, reduced species turnover across space (β diversity), remain poorly known. Using data from 39 grassland biodiversity experiments, we examine the effects of β diversity on the stability of simulated landscapes while controlling for potentially confounding biotic and abiotic factors. Our results show that higher β diversity generates more asynchronous dynamics among local communities and thereby contributes to the stability of ecosystem productivity at larger spatial scales. We further quantify the relative contributions of α and β diversity to ecosystem stability and find a relatively stronger effect of α diversity, possibly due to the limited spatial scale of our experiments. The stabilizing effects of both α and β diversity lead to a positive diversity-stability relationship at the landscape scale. Our findings demonstrate the destabilizing effect of biotic homogenization and suggest that biodiversity should be conserved at multiple spatial scales to maintain the stability of ecosystem functions and services.read more
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Grazing-induced biodiversity loss impairs grassland ecosystem stability at multiple scales.
TL;DR: This study provides the first evidence for the scale dependence of grazing effects on grassland stability through biodiversity, and suggests that ecosystem management should strive to maintain biodiversity across scales to achieve sustainability of grassland ecosystem functions and services.
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Decoupled responses of above‐ and below‐ground stability of productivity to nitrogen addition at the local and larger spatial scale
TL;DR: In this paper , the authors used experimental N addition in a grassland and found different responses of ANPP and BNPP stability to N addition at the local scale and that these responses propagated to the larger spatial scale.
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Spatial asynchrony matters more than alpha stability in stabilizing ecosystem productivity in a large temperate forest region
Xuetao Qiao,Yan Geng,Chunyu Zhang,Zhuoxiu Han,Zhonghui Zhang,Xiuhai Zhao,Klaus von Gadow,Irena Šímová +7 more
TL;DR: In this article , the authors evaluated biodiversity-stability effects from local to larger spatial scales in a large temperate forest region, considering a range of environmental conditions and environmental heterogeneity.
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Consistent stabilizing effects of plant diversity across spatial scales and climatic gradients
Maowei Liang,Benjamin Baiser,Lauren M. Hallett,Yann Hautier,Lin Jiang,Michel Loreau,Sydne Record,Eric R. Sokol,Phoebe L. Zarnetske,Shaopeng Wang +9 more
TL;DR: The authors investigated the relationship between biodiversity and community stability in natural plant communities from quadrat (1 m2) to plot (400 m2), and regional (5−214 km2) scales and across broad climatic conditions, using an extensive plant community dataset from the National Ecological Observatory Network.
Journal ArticleDOI
Nutrients and herbivores impact grassland stability across spatial scales through different pathways
Qingqing Chen,Shaopeng Wang,Eric W. Seabloom,Andrew S. MacDougall,Elizabeth T. Borer,Jonathan D. Bakker,Ian Donohue,Johannes M. H. Knops,John W. Morgan,Oliver Carroll,Michael J. Crawley,Miguel N. Bugalho,Sally A. Power,Anu Eskelinen,Risto Virtanen,Anita C. Risch,Martin Schütz,Carly J. Stevens,Maria C. Caldeira,Sumanta Bagchi,J. Albert,Yann Hautier +21 more
TL;DR: It is found that both nutrient addition and herbivore exclusion alone reduced stability at the larger spatial scale (aggregated local communities; gamma stability), but through different pathways, and that disentangling the processes operating at different spatial scales may improve conservation and management.
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