Mycorrhizal dominance reduces local tree species diversity across US forests.
Journal
Nature ecology & evolution
ISSN: 2397-334X
Titre abrégé: Nat Ecol Evol
Pays: England
ID NLM: 101698577
Informations de publication
Date de publication:
04 2022
04 2022
Historique:
received:
26
01
2021
accepted:
22
11
2021
pubmed:
26
2
2022
medline:
9
4
2022
entrez:
25
2
2022
Statut:
ppublish
Résumé
Ectomycorrhizas and arbuscular mycorrhizas, the two most widespread plant-fungal symbioses, are thought to differentially influence tree species diversity, with positive plant-soil feedbacks favouring locally abundant ectomycorrhizal tree species and negative feedbacks promoting species coexistence and diversity in arbuscular mycorrhizal forests. While seedling recruitment studies and cross-biome patterns of plant diversity and mycorrhizal dominance support this hypothesis, it remains to be tested at the forest stand level over continental scales. Here, we analyse approximately 82,000 forest plots across the USA to show that both ectomycorrhizal-dominated and arbuscular mycorrhizal-dominated forests show relatively low tree diversity, while forests with a mixture of mycorrhizal strategies support a higher number of tree species. Our findings suggest that mycorrhizal dominance, rather than mycorrhizal type, shapes tree diversity in forests.
Identifiants
pubmed: 35210575
doi: 10.1038/s41559-021-01634-6
pii: 10.1038/s41559-021-01634-6
doi:
Substances chimiques
Soil
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
370-374Informations de copyright
© 2022. The Author(s), under exclusive licence to Springer Nature Limited.
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