Loss of 'nitrogen fixers' threatens biodiversity, ecosystems
- Date:
- October 18, 2024
- Source:
- Mississippi State University
- Summary:
- New research shows how human activities, like fertilizer use and polluting, are impacting nitrogen-fixing plants which are crucial for maintaining healthy ecosystems by adding nitrogen to the soil.
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Mississippi State University is part of a European-American collaboration studying how human activities, like fertilizer use and polluting, are impacting nitrogen-fixing plants which are crucial for maintaining healthy ecosystems by adding nitrogen to the soil.
MSU Assistant Professor Ryan A. Folk of the Department of Biological Sciences co-authored a study published today [Oct. 18] in Science Advances, showing that increased nitrogen deposition from human activity is reducing the diversity and evolutionary distinctiveness of nitrogen-fixing plants.
Lead author Pablo Moreno García, at the University of Arizona, said excessive nitrogen from agriculture and industry makes nitrogen fixers less competitive, leading to simplified plant communities with fewer species of nitrogen fixers.
Folk said, "While others predicted climate change might benefit nitrogen fixers, our research shows this has not happened. Humans are changing Earth in multiple ways that affect nitrogen fixers, and nitrogen deposition is overwhelming as a harmful effect. Nitrogen, the first number listed on a bag of fertilizer, is often the most important plant macronutrient in natural and agricultural systems, so the loss of these plants threatens both biodiversity and ecosystem stability."
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Materials provided by Mississippi State University. Note: Content may be edited for style and length.
Journal Reference:
- Pablo Moreno-García, Flavia Montaño-Centellas, Yu Liu, Evelin Y. Reyes-Mendez, Rohit Raj Jha, Robert P. Guralnick, Ryan Folk, Donald M. Waller, Kris Verheyen, Lander Baeten, Antoine Becker-Scarpitta, Imre Berki, Markus Bernhardt-Römermann, Jörg Brunet, Hans Van Calster, Markéta Chudomelová, Deborah Closset, Pieter De Frenne, Guillaume Decocq, Frank S. Gilliam, John-Arvid Grytnes, Radim Hédl, Thilo Heinken, Bogdan Jaroszewicz, Martin Kopecký, Jonathan Lenoir, Martin Macek, František Máliš, Tobias Naaf, Anna Orczewska, Petr Petřík, Kamila Reczyńska, Fride Høistad Schei, Wolfgang Schmidt, Alina Stachurska-Swakoń, Tibor Standovár, Krzysztof Świerkosz, Balázs Teleki, Ondřej Vild, Daijiang Li. Long-term nitrogen deposition reduces the diversity of nitrogen-fixing plants. Science Advances, 2024; 10 (42) DOI: 10.1126/sciadv.adp7953
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