Long-term nitrogen deposition reduces the diversity of nitrogen-fixing plants - Université de Picardie Jules Verne
Article Dans Une Revue Science Advances Année : 2024

Long-term nitrogen deposition reduces the diversity of nitrogen-fixing plants

Pablo Moreno-García
Yu Liu
Evelin Reyes-Mendez
Rohit Raj Jha
Robert Guralnick
Ryan Folk
Jörg Brunet
Frank Gilliam
John-Arvid Grytnes
Radim Hédl
Thilo Heinken
Bogdan Jaroszewicz
Martin Kopecký
Martin Macek
František Máliš
Tobias Naaf
Anna Orczewska
Petr Petřík
Kamila Reczyńska
Fride Høistad Schei
  • Fonction : Auteur
Wolfgang Schmidt
Alina Stachurska-Swakoń
Tibor Standovár
Krzysztof Świerkosz
Balázs Teleki
  • Fonction : Auteur
Ondřej Vild
Daijiang Li

Résumé

Biological nitrogen fixation is a fundamental part of ecosystem functioning. Anthropogenic nitrogen deposition and climate change may, however, limit the competitive advantage of nitrogen-fixing plants, leading to reduced relative diversity of nitrogen-fixing plants. Yet, assessments of changes of nitrogen-fixing plant long-term community diversity are rare. Here, we examine temporal trends in the diversity of nitrogen-fixing plants and their relationships with anthropogenic nitrogen deposition while accounting for changes in temperature and aridity. We used forest-floor vegetation resurveys of temperate forests in Europe and the United States spanning multiple decades. Nitrogen-fixer richness declined as nitrogen deposition increased over time but did not respond to changes in climate. Phylogenetic diversity also declined, as distinct lineages of N-fixers were lost between surveys, but the “winners” and “losers” among nitrogen-fixing lineages varied among study sites, suggesting that losses are context dependent. Anthropogenic nitrogen deposition reduces nitrogen-fixing plant diversity in ways that may strongly affect natural nitrogen fixation.

Dates et versions

hal-04745738 , version 1 (21-10-2024)

Identifiants

Citer

Pablo Moreno-García, Flavia Montaño-Centellas, Yu Liu, Evelin Reyes-Mendez, Rohit Raj Jha, et al.. Long-term nitrogen deposition reduces the diversity of nitrogen-fixing plants. Science Advances , 2024, 10 (42), ⟨10.1126/sciadv.adp7953⟩. ⟨hal-04745738⟩
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