Synchrony matters more than species richness in plant community stability at a global scale.
climate change drivers
evenness
species richness
stability
synchrony
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
29 09 2020
29 09 2020
Historique:
pubmed:
10
9
2020
medline:
19
12
2020
entrez:
9
9
2020
Statut:
ppublish
Résumé
The stability of ecological communities is critical for the stable provisioning of ecosystem services, such as food and forage production, carbon sequestration, and soil fertility. Greater biodiversity is expected to enhance stability across years by decreasing synchrony among species, but the drivers of stability in nature remain poorly resolved. Our analysis of time series from 79 datasets across the world showed that stability was associated more strongly with the degree of synchrony among dominant species than with species richness. The relatively weak influence of species richness is consistent with theory predicting that the effect of richness on stability weakens when synchrony is higher than expected under random fluctuations, which was the case in most communities. Land management, nutrient addition, and climate change treatments had relatively weak and varying effects on stability, modifying how species richness, synchrony, and stability interact. Our results demonstrate the prevalence of biotic drivers on ecosystem stability, with the potential for environmental drivers to alter the intricate relationship among richness, synchrony, and stability.
Identifiants
pubmed: 32900958
pii: 1920405117
doi: 10.1073/pnas.1920405117
pmc: PMC7533703
doi:
Substances chimiques
Soil
0
Banques de données
figshare
['10.6084/m9.figshare.7886582.v1']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
24345-24351Subventions
Organisme : Biotechnology and Biological Sciences Research Council
ID : BBS/E/C/000J0300
Pays : United Kingdom
Déclaration de conflit d'intérêts
The authors declare no competing interest.
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