Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1111/gcb.16086
Volltext Shareable Link
Titel (primär) Nutrients and herbivores impact grassland stability across spatial scales through different pathways
Autor Chen, Q.; Wang, S.; Seabloom, E.W.; MacDougall, A.S.; Borer, E.T.; Bakker, J.D.; Donohue, I.; Knops, J.M.H.; Morgan, J.W.; Carroll, O.; Crawley, M.; Bugalho, M.N.; Power, S.A.; Eskelinen, A.; Virtanen, R.; Risch, A.C.; Schütz, M.; Stevens, C.; Caldeira, M.C.; Bagchi, S.; Alberti, J.; Hautier, Y.
Quelle Global Change Biology
Erscheinungsjahr 2022
Department iDiv; PHYDIV
Band/Volume 28
Heft 8
Seite von 2678
Seite bis 2688
Sprache englisch
Topic T5 Future Landscapes
Keywords biodiversity-stability; cross-scale; eutrophication; grazing; Nutrient Network (NutNet)
Abstract 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.
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Chen, Q., Wang, S., Seabloom, E.W., MacDougall, A.S., Borer, E.T., Bakker, J.D., Donohue, I., Knops, J.M.H., Morgan, J.W., Carroll, O., Crawley, M., Bugalho, M.N., Power, S.A., Eskelinen, A., Virtanen, R., Risch, A.C., Schütz, M., Stevens, C., Caldeira, M.C., Bagchi, S., Alberti, J., Hautier, Y. (2022):
Nutrients and herbivores impact grassland stability across spatial scales through different pathways
Glob. Change Biol. 28 (8), 2678 - 2688 10.1111/gcb.16086