Mycorrhizal feedbacks influence global forest structure and diversity
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Published:2023-10-19
Issue:1
Volume:6
Page:
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ISSN:2399-3642
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Container-title:Communications Biology
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language:en
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Short-container-title:Commun Biol
Author:
Delavaux Camille S.ORCID, LaManna Joseph A.ORCID, Myers Jonathan A.ORCID, Phillips Richard P.ORCID, Aguilar Salomón, Allen DavidORCID, Alonso AlfonsoORCID, Anderson-Teixeira Kristina J.ORCID, Baker Matthew E., Baltzer Jennifer L.ORCID, Bissiengou Pulchérie, Bonfim Mariana, Bourg Norman A., Brockelman Warren Y., Burslem David F. R. P.ORCID, Chang Li-Wan, Chen Yang, Chiang Jyh-Min, Chu ChengjinORCID, Clay KeithORCID, Cordell SusanORCID, Cortese MaryORCID, den Ouden Jan, Dick ChristopherORCID, Ediriweera Sisira, Ellis Erle C.ORCID, Feistner Anna, Freestone Amy L.ORCID, Giambelluca ThomasORCID, Giardina Christian P., Gilbert Gregory S.ORCID, He FangliangORCID, Holík JanORCID, Howe Robert W.ORCID, Huaraca Huasca Walter, Hubbell Stephen P., Inman Faith, Jansen Patrick A.ORCID, Johnson Daniel J.ORCID, Kral KamilORCID, Larson Andrew J.ORCID, Litton Creighton M., Lutz James A.ORCID, Malhi YadvinderORCID, McGuire Krista, McMahon Sean M.ORCID, McShea William J., Memiaghe Hervé, Nathalang AnuttaraORCID, Norden NataliaORCID, Novotny VojtechORCID, O’Brien Michael J.ORCID, Orwig David A.ORCID, Ostertag RebeccaORCID, Parker Geoffrey G., Pérez Rolando, Reynolds Glen, Russo Sabrina E.ORCID, Sack LawrenORCID, Šamonil Pavel, Sun I-FangORCID, Swanson Mark E., Thompson JillORCID, Uriarte MariaORCID, Vandermeer John, Wang Xihua, Ware IanORCID, Weiblen George D., Wolf Amy, Wu Shu-Hui, Zimmerman Jess K., Lauber ThomasORCID, Maynard Daniel S., Crowther Thomas W.ORCID, Averill ColinORCID
Abstract
AbstractOne mechanism proposed to explain high species diversity in tropical systems is strong negative conspecific density dependence (CDD), which reduces recruitment of juveniles in proximity to conspecific adult plants. Although evidence shows that plant-specific soil pathogens can drive negative CDD, trees also form key mutualisms with mycorrhizal fungi, which may counteract these effects. Across 43 large-scale forest plots worldwide, we tested whether ectomycorrhizal tree species exhibit weaker negative CDD than arbuscular mycorrhizal tree species. We further tested for conmycorrhizal density dependence (CMDD) to test for benefit from shared mutualists. We found that the strength of CDD varies systematically with mycorrhizal type, with ectomycorrhizal tree species exhibiting higher sapling densities with increasing adult densities than arbuscular mycorrhizal tree species. Moreover, we found evidence of positive CMDD for tree species of both mycorrhizal types. Collectively, these findings indicate that mycorrhizal interactions likely play a foundational role in global forest diversity patterns and structure.
Publisher
Springer Science and Business Media LLC
Subject
General Agricultural and Biological Sciences,General Biochemistry, Genetics and Molecular Biology,Medicine (miscellaneous)
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