Nutrients and herbivores impact grassland stability across spatial scales through different pathways

Nutrients and herbivores impact grassland stability across spatial scales through different pathways

© 2022 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 28(2022), 8 vom: 03. Apr., Seite 2678-2688
1. Verfasser: Chen, Qingqing (VerfasserIn)
Weitere Verfasser: Wang, Shaopeng, Seabloom, Eric W, MacDougall, Andrew S, Borer, Elizabeth T, Bakker, Jonathan D, Donohue, Ian, Knops, Johannes M H, Morgan, John W, Carroll, Oliver, Crawley, Mick, Bugalho, Miguel N, Power, Sally A, Eskelinen, Anu, Virtanen, Risto, Risch, Anita C, Schütz, Martin, Stevens, Carly, Caldeira, Maria C, Bagchi, Sumanta, Alberti, Juan, Hautier, Yann
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Nutrient Network (NutNet) biodiversity-stability cross-scale eutrophication grazing
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520 |a Nutrients and herbivores are well-known drivers of grassland diversity and stability in local communities. However, whether they interact to impact the stability of aboveground biomass and whether these effects depend on spatial scales remain unknown. It is also unclear whether nutrients and herbivores impact stability via different facets of plant diversity including species richness, evenness, and changes in community composition through time and space. We used a replicated experiment adding nutrients and excluding herbivores for 5 years in 34 global grasslands to explore these questions. We 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. Nutrient addition reduced gamma stability primarily by increasing changes in local community composition over time, which was mainly driven by species replacement. Herbivore exclusion reduced gamma stability primarily by decreasing asynchronous dynamics among local communities (spatial asynchrony). Their interaction weakly increased gamma stability by increasing spatial asynchrony. Our findings indicate that disentangling the processes operating at different spatial scales may improve conservation and management aiming at maintaining the ability of ecosystems to reliably provide functions and services for humanity 
650 4 |a Journal Article 
650 4 |a Nutrient Network (NutNet) 
650 4 |a biodiversity-stability 
650 4 |a cross-scale 
650 4 |a eutrophication 
650 4 |a grazing 
700 1 |a Wang, Shaopeng  |e verfasserin  |4 aut 
700 1 |a Seabloom, Eric W  |e verfasserin  |4 aut 
700 1 |a MacDougall, Andrew S  |e verfasserin  |4 aut 
700 1 |a Borer, Elizabeth T  |e verfasserin  |4 aut 
700 1 |a Bakker, Jonathan D  |e verfasserin  |4 aut 
700 1 |a Donohue, Ian  |e verfasserin  |4 aut 
700 1 |a Knops, Johannes M H  |e verfasserin  |4 aut 
700 1 |a Morgan, John W  |e verfasserin  |4 aut 
700 1 |a Carroll, Oliver  |e verfasserin  |4 aut 
700 1 |a Crawley, Mick  |e verfasserin  |4 aut 
700 1 |a Bugalho, Miguel N  |e verfasserin  |4 aut 
700 1 |a Power, Sally A  |e verfasserin  |4 aut 
700 1 |a Eskelinen, Anu  |e verfasserin  |4 aut 
700 1 |a Virtanen, Risto  |e verfasserin  |4 aut 
700 1 |a Risch, Anita C  |e verfasserin  |4 aut 
700 1 |a Schütz, Martin  |e verfasserin  |4 aut 
700 1 |a Stevens, Carly  |e verfasserin  |4 aut 
700 1 |a Caldeira, Maria C  |e verfasserin  |4 aut 
700 1 |a Bagchi, Sumanta  |e verfasserin  |4 aut 
700 1 |a Alberti, Juan  |e verfasserin  |4 aut 
700 1 |a Hautier, Yann  |e verfasserin  |4 aut 
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