Evenness mediates the global relationship between forest productivity and richness

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Journal of Ecology - 2023 - Hordijk - Evenness mediates the global relationship between forest productivity and richness.pdf

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/101829 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/101829 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/101829 archive 353 disk0/00/01/88/45 2023-06-07 10:39:09 2023-12-12 11:36:07 2023-06-07 10:39:09 article show Hordijk I. Maynard D.S. Hart S.P. Lidong M. ter Steege H. Liang J. de‐Miguel S. Nabuurs G.‐J. Reich P. Abegg M. Adou Yao C. Alberti G. Almeyda Zambrano A. Alvarado B. Esteban A.-D. Alvarez‐Loayza P. Alves L. Ammer C. Antón‐Fernández C. Araujo‐Murakami A. Arroyo L. Avitabile V. Aymard C G. Baker T. Bałazy R. Banki O. Barroso J. Bastian M. Bastin J.-F. Birigazzi L. Birnbaum P. Bitariho R. Boeckx P. Bongers F. Bouriaud O. Brancalion P. Brandl S. Brienen R. Broadbent E. Bruelheide H. Bussotti F. Cazzolla Gatti R. César R. Cesljar G. Chazdon R. Chen H. Chisholm C. Cienciala E. Clark C. Clark D. Colletta G. Coomes D. Cornejo Valverde F. Corral‐Rivas J. Crim P. Cumming J. Dayanandan S. de Gasper A. Decuyper M. Derroire G. DeVries B. Djordjevic I. Iêda A. Dourdain A. Nestor Laurier E. Enquist B. Eyre T. Fandohan A. Fayle T. Ferreira L. Feldpausch T. Finér L. Fischer M. Fletcher C. Frizzera L. Gamarra J. Gianelle D. Glick H. Harris D. Hector A. Hemp A. Hengeveld G. Hérault B. Herbohn J. Hillers A. Honorio Coronado E. Hui C. Cho H. Ibanez T. Bin Jung I. Imai N. Jagodzinski A. Jaroszewicz B. Johanssen V. Joly C. Jucker T. Karminov V. Kartawinata K. Kearsley E. Kenfack D. Kennard D. Kepfer‐Rojas S. Keppel G. Khan M. Killeen T. Kim H. Kitayama K. Köhl M. Korjus H. Kraxner F. 7904 Laarmann D. Lang M. Lewis S. Lu H. Lukina N. Maitner B. Malhi Y. Marcon E. Marimon B. Marimon‐Junior B. Marshall A. Martin E. Martynenko O. Meave J. Melo‐Cruz O. Mendoza C. Merow C. Stanislaw M. Mendoza A. Moreno V. Mukul S. Mundhenk P. Nava‐Miranda M. Neill D. Neldner V. Nevenic R. Ngugi M. Niklaus P. Oleksyn J. Ontikov P. Ortiz‐Malavasi E. Pan Y. Paquette A. Parada‐Gutierrez A. Parfenova E. Park M. Parren M. Parthasarathy N. Peri P. Pfautsch S. Phillips O. Picard N. Piedade M. Piotto D. Pitman N. Polo I. Poorter L. Poulsen A. Poulsen J. Pretzsch H. Ramirez Arevalo F. Restrepo‐Correa Z. Rodeghiero M. Rolim S. Roopsind A. Rovero F. Rutishauser E. Saikia P. Salas‐Eljatib C. Schall P. Shchepashchenko D. 7435 0000-0002-7814-4990 Scherer‐Lorenzen M. Schmid B. Schöngart J. Searle E. Šebeň V. Serra‐Diaz J. Sheil D. Shvidenko A. 1487 Silva‐Espejo J. Silveira M. Singh J. Sist P. Slik F. Sonké B. Souza A. Stereńczak K. Svenning J.-C. Svoboda M. Swanepoel B. Targhetta N. Tchebakova N. Thomas R. Tikhonova E. Umunay P. Usoltsev V. Valencia R. Valladares F. van der Plas F. Tran D. Van Nuland M. Vasquez Martinez R. Verbeeck H. Viana H. Vibrans A. Vieira S. von Gadow K. Wang H.-F. Watson J. Werner G. Wiser S. Wittmann F. Wortel V. Zagt R. Zawila‐Niedzwiecki T. Zhang C. Zhao X. Zhou M. Zhu Z.-X. Zo‐Bi I. Crowther T. Evenness mediates the global relationship between forest productivity and richness pub ASA NODES BNR AFE 1. Biodiversity is an important component of natural ecosystems, with higher species richness often correlating with an increase in ecosystem productivity. Yet, this relationship varies substantially across environments, typically becoming less pronounced at high levels of species richness. However, species richness alone cannot reflect all important properties of a community, including community evenness, which may mediate the relationship between biodiversity and productivity. If the evenness of a community correlates negatively with richness across forests globally, then a greater number of species may not always increase overall diversity and productivity of the system. Theoretical work and local empirical studies have shown that the effect of evenness on ecosystem functioning may be especially strong at high richness levels, yet the consistency of this remains untested at a global scale. 2. Here, we used a dataset of forests from across the globe, which includes composition, biomass accumulation and net primary productivity, to explore whether productivity correlates with community evenness and richness in a way that evenness appears to buffer the effect of richness. Specifically, we evaluated whether low levels of evenness in speciose communities correlate with the attenuation of the richness–productivity relationship. 3. We found that tree species richness and evenness are negatively correlated across forests globally, with highly speciose forests typically comprising a few dominant and many rare species. Furthermore, we found that the correlation between diversity and productivity changes with evenness: at low richness, uneven communities are more productive, while at high richness, even communities are more productive. 4. Synthesis. Collectively, these results demonstrate that evenness is an integral component of the relationship between biodiversity and productivity, and that the attenuating effect of richness on forest productivity might be partly explained by low evenness in speciose communities. Productivity generally increases with species richness, until reduced evenness limits the overall increases in community diversity. Our research suggests that evenness is a fundamental component of biodiversity–ecosystem function relationships, and is of critical importance for guiding conservation and sustainable ecosystem management decisions. 2023-05-02 published Wiley-Blackwell doi:10.1111/1365-2745.14098 165 279 281 public Journal of Ecology 111 6 1308-1326 TRUE 1365-2745 no info:eu-repo/semantics/article