Mycorrhizal feedbacks influence global forest structure and diversity

0581655 - BC 2024 RIV GB eng J - Journal Article
Delavaux, C. S. - LaManna, J. A. - Myers, J. A. - Phillips, R. P. - Aguilar, S. - Allen, D. - Alonso, A. - Anderson-Teixeira, K. J. - Baker, M. E. - Baltzer, J. L. - Bissiengou, P. - Bonfim, M. - Bourg, N. A. - Brockelman, W. Y. - Burslem, D. F. R. P. - Chang, L. - Chen, Y. - Chiang, J.-M. - Chu, C. - Clay, K. - Cordell, S. - Cortese, M. - den Ouden, J. - Dick, C. - Ediriweera, S. - Ellis, E. C. - Feistner, A. - Freestone, A. L. - Giambelluca, T. - Giardina, C. P. - Gilbert, G. S. - He, F. - Holik, J. - Howe, R. W. - Huaraca Huasca, W. - Hubbell, S. P. - Inman, F. - Jansen, P. A. - Johnson, D. J. - Král, K. - Larson, A. J. - Litton, C. M. - Lutz, J. A. - Malhi, Y. - Mcguire, K. - McMahon, S. M. - McShea, W. - Memiaghe, H. - Nathalang, A. - Norden, N. - Novotný, Vojtěch … Total 75 authors
Mycorrhizal feedbacks influence global forest structure and diversity.
Communications Biology. Roč. 6, č. 1 (2023), č. článku 1066. E-ISSN 2399-3642
Institutional support: RVO:60077344
Keywords : negative density-dependence * plant-soil feedback * host-specificity * fungi * metaanalysis * patterns * seed * monodominance * herbivores * pathogens
OECD category: Biochemistry and molecular biology
Impact factor: 5.9, year: 2022
Method of publishing: Open access
https://www.nature.com/articles/s42003-023-05410-z.pdf

One 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.
Permanent Link: https://hdl.handle.net/11104/0349763