期刊
NATURE ECOLOGY & EVOLUTION
卷 2, 期 10, 页码 1579-1587出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41559-018-0647-7
关键词
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资金
- sDiv
- Synthesis Centre of the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig [DFG FZT 118]
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [FOR 1451]
- Swiss National Science Foundation
- Andrew Mellon Foundation
- US National Science Foundation (NSF) [DEB-9411972, DEB-0080382, DEB-0620652, DEB-1234162, DEB-0322057, DEB-0716587, DEB-1242531, NSF DEB-1120064]
- National Institute for Climatic Change Research [DE-FC02-06ER64158]
- US-NSF [DEB-0639417, USDA-NIFA-2014-67003-22067]
- TRY initiative on plant traits
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig
- Russian Science Foundation [14-50-00029]
- US Department of Energy Programs for Ecosystem Research [DE-FG02-96ER62291]
- DIVERSITAS/Future Earth
A substantial body of evidence has demonstrated that biodiversity stabilizes ecosystem functioning over time in grassland ecosystems. However, the relative importance of different facets of biodiversity underlying the diversity-stability relationship remains unclear. Here we use data from 39 grassland biodiversity experiments and structural equation modelling to investigate the roles of species richness, phylogenetic diversity and both the diversity and community-weighted mean of functional traits representing the 'fast-slow' leaf economics spectrum in driving the diversity-stability relationship. We found that high species richness and phylogenetic diversity stabilize biomass production via enhanced asynchrony in the performance of co-occurring species. Contrary to expectations, low phylogenetic diversity enhances ecosystem stability directly, albeit weakly. While the diversity of fast-slow functional traits has a weak effect on ecosystem stability, communities dominated by slow species enhance ecosystem stability by increasing mean biomass production relative to the standard deviation of biomass over time. Our in-depth, integrative assessment of factors influencing the diversity-stability relationship demonstrates a more multicausal relationship than has been previously acknowledged.
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