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

Moreno-García Pablo, Montaño-Centellas Flavia, Liu Yu, Reyes-Mendez Evelin Y., Jha Rohit Raj, Guralnick Robert P., Folk Ryan, Waller Donald M., Verheyen Kris, Baeten Lander, Becker-Scarpitta Antoine, Berki Imre, Bernhardt-Römermann Markus, Brunet Jörg, Van Calster Hans, Chudomelová Markéta, Closset Deborah, De Frenne Pieter, Decocq Guillaume, Gilliam Frank S., Grytnes John-Arvid, Hédl Radim, Heinken Thilo, Jaroszewicz Bogdan, Kopecký Martin, Lenoir Jonathan, Macek Martin, Malis František, Naaf Tobias, Orczewska Anna, Petřík Petr, Reczyńska Kamila, Hoistad Schei Fride, Schmidt Wolfgang, Stachurska-Swakoń Alina, Standovár Tibor, Świerkosz Krzysztof, Teleki Balázs, Vild Ondřej, Li Daijiang. 2024. Long-term nitrogen deposition reduces the diversity of nitrogen-fixing plants. Science Advances, 10 (42):eadp7953, 8 p.

Url - jeu de données - Entrepôt autre : https://forestreplot.ugent.be/

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.

Mots-clés Agrovoc : changement climatique, Fixation de l'azote, phylogénie

Mots-clés géographiques Agrovoc : Europe

Mots-clés libres : Biodiversity, Community ecology, Nitrogen deposition, Forest ecology, Long-term monitoring, Biological nitrogen fixation, Plot resurvey

Agences de financement européennes : European Agricultural Fund for Rural Development

Agences de financement hors UE : Conseil Régional de La Réunion, Conseil départemental de la Réunion

Auteurs et affiliations

• Moreno-García Pablo, Louisiana State University (USA)
• Montaño-Centellas Flavia, Louisiana State University (USA)
• Liu Yu, Louisiana State University (USA)
• Reyes-Mendez Evelin Y., Louisiana State University (USA)
• Jha Rohit Raj, Louisiana State University (USA)
• Guralnick Robert P., University of Florida (USA)
• Folk Ryan, Mississippi State University (USA)
• Waller Donald M., University of Wisconsin-Madison (USA)
• Verheyen Kris, Ghent University (BEL)
• Baeten Lander, Ghent University (BEL)
• Becker-Scarpitta Antoine, CIRAD-BIOS-UMR PVBMT (REU) ORCID: 0000-0001-9241-091X
• Berki Imre, University of Sopron (HUN)
• Bernhardt-Römermann Markus, Friedrich Schiller University Jena (DEU)
• Brunet Jörg, Swedish University of Agricultural Sciences (SWE)
• Van Calster Hans, INBO (BEL)
• Chudomelová Markéta, Czech Academy of Sciences (CZE)
• Closset Deborah, UPJV (FRA)
• De Frenne Pieter, Ghent University (BEL)
• Decocq Guillaume, Université de Picardie (FRA)
• Gilliam Frank S., University of West Florida (USA)
• Grytnes John-Arvid, University of Bergen (NOR)
• Hédl Radim, Institute of Botany (CZE)
• Heinken Thilo, University of Potsdam (DEU)
• Jaroszewicz Bogdan, University of Warsaw (POL)
• Kopecký Martin, Institute of Botany of the Czech Academy of Sciences (CZE)
• Lenoir Jonathan, UPJV (FRA)
• Macek Martin, Czech Academy of Sciences (CZE)
• Malis František, Technical University in Zvolen (SVK)
• Naaf Tobias, Leibniz Centre for Agricultural Landscape Research (DEU)
• Orczewska Anna, University of Silesia (POL)
• Petřík Petr, Czech Academy of Sciences (CZE)
• Reczyńska Kamila
• Hoistad Schei Fride, Norwegian Institute for Bioeconomy Research (NOR)
• Schmidt Wolfgang, University of Göttingen (DEU)
• Stachurska-Swakoń Alina, Jagiellonian University in Kraków (POL)
• Standovár Tibor, Eötvös Loránd University (HUN)
• Świerkosz Krzysztof, University of Wrocław (POL)
• Teleki Balázs, MTA-DE Lendület Functional and Restoration Ecology Research Group (HUN)
• Vild Ondřej, Institute of Botany of the Czech Academy of Sciences (CZE)
• Li Daijiang, Louisiana State University (USA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/611984/)

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