Global decoupling of functional and phylogenetic diversity in plant communities

作者：G. Hahn, Gabriella Damasceno, Esteban Álvarez‐Dávila, Isabelle Aubin, Marijn Bauters, Erwin Bergmeier, Idoia Biurrun, Anne D. Bjorkman, Gianmaria Bonari, Zoltán Botta‐Dukát, Juan Antonio Campos, Andraž Čarni, Milan Chytrý, Renata Ćušterevska, André Luís de Gasper, Michele De Sanctis, Jürgen Dengler, Jiří Doležal, Mohamed A. El‐Sheikh, Manfred Finckh, António Galán de Mera, Emmanuel Garbolino, Hamid Gholizadeh, В. Б. Голуб, Sylvia Haider, Mohamed Z. Hatim, Bruno Hérault, Jürgen Homeier, Ute Jandt, Florian Jansen, Anke Jentsch, Jens Kattge, Michael Kessler, Larisa Khanina, Holger Kreft, Filip Küzmič, Jonathan Lenoir, Jesper Erenskjold Moeslund, Ladislav Mucina, Alireza Naqinezhad, Jalil Noroozi, Aaron Pérez‐Haase, Oliver L. Phillips, Valério D. Pillar, Gonzalo Rivas‐Torres, Eszter Ruprecht, Brody Sandel, Marco Schmidt, Ute Schmiedel, Stefan A. Schnitzer, Franziska Schrodt, Urban Šilc, Ben Sparrow, Maria Sporbert, Zvjezdana Stančić, Ben J. Strohbach, Jens‐Christian Svenning, Cindy Q. Tang, Zhiyao Tang, Alexander Christian Vibrans, Cyrille Violle, Donald M. Waller, Desalegn Wana, Huifang Wang, Timothy J. S. Whitfeld, Georg Zizka, Francesco María Sabatini, Helge Bruelheide · 发表于：Nature Ecology & Evolution · 年份：2024 · DOI：10.1038/s41559-024-02589-0 · 被引用次数：47 · 研究领域：Plant and animal studies、Ecology and Vegetation Dynamics Studies、Plant Diversity and Evolution

Plant communities are composed of species that differ both in functional traits and evolutionary histories. As species’ functional traits partly result from their individual evolutionary history, we expect the functional diversity of communities to increase with increasing phylogenetic diversity. This expectation has only been tested at local scales and generally for specific growth forms or specific habitat types, for example, grasslands. Here we compare standardized effect sizes for functional and phylogenetic diversity among 1,781,836 vegetation plots using the global sPlot database. In contrast to expectations, we find functional diversity and phylogenetic diversity to be only weakly and negatively correlated, implying a decoupling between these two facets of diversity. While phylogenetic diversity is higher in forests and reflects recent climatic conditions (1981 to 2010), functional diversity tends to reflect recent and past climatic conditions (21,000 years ago). The independent nature of functional and phylogenetic diversity makes it crucial to consider both aspects of diversity when analysing ecosystem functioning and prioritizing conservation efforts. Functional diversity and phylogenetic diversity are expected to be positively correlated. Here the authors show that the covariation between these metrics in vascular plant communities around the world is often either inconsistent or negative.