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Biotic homogenization can decrease landscape-scale forest multifunctionality

van der Plas F, Manning P, Soliveres S, Allan E, Scherer-Lorenzen M, Verheyen K, Wirth C, Zavala MA, Ampoorter E, Baeten L, Barbaro L, Bauhus J, Benavides R, Benneter A & Joly F (2016) Biotic homogenization can decrease landscape-scale forest multifunctionality, Proceedings of the National Academy of Sciences, 113 (13), pp. 3557-3562.

Additional co-authors: Damien Bonal, Olivier Bouriaud, Helge Bruelheide, Filippo Bussotti, Monique Carnol, Bastien Castagneyrol, Yohan Charbonnier, David Anthony Coomes, Andrea Coppi, Cristina C. Bastias, Seid Muhie Dawud, Hans De Wandeler, Timo Domisch, Leena Finér, Arthur Gessler, André Granier, Charlotte Grossiord, Virginie Guyot, Stephan Hättenschwiler, Hervé Jactel, Bogdan Jaroszewicz, Tommaso Jucker, Julia Koricheva, Harriet Milligan, Sandra Mueller, Bart Muys, Diem Nguyen, Martina Pollastrini, Sophia Ratcliffe, Karsten Raulund-Rasmussen, Federico Selvi, Jan Stenlid, Fernando Valladares, Lars Vesterdal, Dawid Zielínski, and Markus Fischer

Many experiments have shown that local biodiversity loss impairs the ability of ecosystems to maintain multiple ecosystem functions at high levels (multifunctionality). In contrast, the role of biodiversity in driving ecosystem multifunctionality at landscape scales remains unresolved. We used a comprehensive pan-European dataset, including 16 ecosystem functions measured in 209 forest plots across six European countries, and performed simulations to investigate how local plot-scale richness of tree species (α-diversity) and their turnover between plots (β-diversity) are related to landscape-scale multifunctionality. After accounting for variation in environmental conditions, we found that relationships between α-diversity and landscape-scale multifunctionality varied from positive to negative depending on the multifunctionality metric used. In contrast, when significant, relationships between β-diversity and landscape-scale multifunctionality were always positive, because a high spatial turnover in species composition was closely related to a high spatial turnover in functions that were supported at high levels. Our findings have major implications for forest management and indicate that biotic homogenization can have previously unrecognized and negative consequences for large-scale ecosystem multifunctionality.

β-diversity; biodiversity; ecosystem functioning; FunDivEUROPE; spatial scale

Authorsvan der Plas Fons, Manning Pete, Soliveres Santiago, Allan Eric, Scherer-Lorenzen Michael, Verheyen Kris, Wirth Christian, Zavala Miguel A, Ampoorter Evy, Baeten Lander, Barbaro Luc, Bauhus Jurgen, Benavides Raquel, Benneter Adam, Joly Francois-Xavier
Publication date29/03/2016
Publication date online15/03/2016
Date accepted by journal29/01/2016
PublisherNational Academy of Sciences
ISSN 0027-8424

Proceedings of the National Academy of Sciences: Volume 113, Issue 13 (2016)

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