Mycorrhizal feedbacks influence global forest structure and diversity

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, tr...

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Detalles Bibliográficos
Autores: Delavaux, Camille S., LaManna, Joseph A., Myers, Jonathan A., Phillips, Richard P., Aguilar, Salomón, Allen, David, Alonso, Alfonso, Anderson-Teixeira, Kristina J., Baker, Matthew E., Baltzer, Jennifer L., Bissiengou, Pulchérie, Bonfim, Mariana, Bourg, Norman A., Brockelman, Warren Y., Burslem, David F. R. P., Chang, Li-Wan, Chen, Yang, Chiang, Jyh-Min, Chu, Chengjin, Clay, Keith, Cordell, Susan, Cortese, Mary, den Ouden, Jan, Dick, Christopher, Ediriweera, Sisira, Ellis, Erle C., Feistner, Anna, Freestone, Amy L., Giambelluca, Thomas, Giardina, Christian P., Gilbert, Gregory S., He, Fangliang, Holík, Jan, Howe, Robert W., Huaraca Huasca, Walter, Hubbell, Stephen P., Inman, Faith, Jansen, Patrick A., Johnson, Daniel J., Kral, Kamil, Larson, Andrew J., Litton, Creighton M., Lutz, James A., Malhi, Yadvinder, McGuire, Krista, McMahon, Sean M., McShea, William J., Memiaghe, Hervé, Nathalang, Anuttara, Norden, Natalia, Novotny, Vojtech, O'Brien, Michael J., Orwig, David A., Ostertag, Rebecca, Parker, Geoffrey G., Pérez, Rolando, Reynolds, Glen, Russo, Sabrina E., Sack, Lawren, Šamonil, Pavel, Sun, I-Fang, Swanson, Mark E., Thompson, Jill, Uriarte, Maria, Vandermeer, John, Wang, Xihua, Ware, Ian, Weiblen, George D., Wolf, Amy, Wu, Shu-Hui, Zimmerman, Jess K., Lauber, Thomas, Maynard, Daniel S., Crowther, Thomas Ward, Averill, Colin
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/395469
Acceso en línea:http://hdl.handle.net/10261/395469
https://api.elsevier.com/content/abstract/scopus_id/85174544742
Access Level:acceso abierto
Palabra clave:Biodiversity
Biogeography
Forest ecology
Descripción
Sumario: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.

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