Soil biota increase the likelihood for coexistence among competing plant species.
community dynamic model
competition
diversity
evolutionary history
plant–soil feedback
species coexistence
Journal
Ecology
ISSN: 1939-9170
Titre abrégé: Ecology
Pays: United States
ID NLM: 0043541
Informations de publication
Date de publication:
11 2020
11 2020
Historique:
received:
16
09
2019
revised:
01
05
2020
accepted:
09
06
2020
entrez:
18
1
2021
pubmed:
19
1
2021
medline:
16
3
2021
Statut:
ppublish
Résumé
Theory predicts that stable species coexistence will occur when population growth rates of competitively dominant species are suppressed when at high conspecific density. Although there is now compelling evidence that plant communities exhibit negative density dependence, the relative importance of the underlying processes leading to these patterns is rarely tested. We coupled reciprocal greenhouse and field experiments with community dynamics modeling to untangle the relative importance of soil biota from competition as stabilizing forces to coexistence. We found that (1) plant-soil biotic interactions compared to competitive interactions were stronger stabilizing forces, (2) only the strength of plant-soil biotic interactions was dependent on plant evolutionary history, and (3) the variation in the strength of plant-soil biotic interactions was correlated with relative abundance patterns in an opposite way than was the variation in the strength of competitive interactions. Collectively, our results demonstrate the fundamental role soil biota have in maintaining plant community diversity.
Substances chimiques
Soil
0
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
e03147Subventions
Organisme : International Center for Energy, Environment and Sustainability (InCEES)
Organisme : National Science Foundation
ID : DEB-1257989
Organisme : National Science Foundation
ID : DEB-1457561
Informations de copyright
© 2020 by the Ecological Society of America.
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