High exposure of global tree diversity to human pressure

• DOI: 10.1073/pnas.2026733119
• Publication Date: 2022-06-16T18:13:10Z
• Authors: Wen-Yong Guo; Josep M. Serra-Diaz; Franziska Schrodt; Wolf L. Eiserhardt; Brian S. Maitner; Cory Merow; Cyrille Violle; Madhur Anand; Michaël Belluau; Hans Henrik Bruun; Chaeho Byun; Jane A. Catford; Bruno E. L. Cerab...; Eduardo Chacón-Ma...; Daniela Ciccarelli; J. Hans C. Cornel...; Anh Tuan Dang-Le; Angel de Frutos; Arildo S. Dias; Aelton B. Giroldo; Kun Guo; Alvaro G. Gutiérrez; Wesley Hattingh; Tianhua He; Peter Hietz; Nate Hough-Snee; Steven Jansen; Jens Kattge; Tamir Klein; Benjamin Komac; Nathan J. B. Kraft; Koen Kramer; Sandra Lavorel; Christopher H. Lusk; Adam R. Martin; Maurizio Mencuccini; Sean T. Michaletz; Vanessa Minden; Akira S. Mori; Ülo Niinemets; Yusuke Onoda; Josep Peñuelas; Valério D. Pillar; Jan Pisek; Bjorn J. M. Robroek; Brandon Schamp; Martijn Slot; Ênio Egon Sosinski; Nadejda A. Soudzi...; Nelson Thiffault; Peter van Bodegom; Fons van der Plas; Ian J. Wright; Wu-Bing Xu; Jingming Zheng; Brian J. Enquist; Jens-Christian Sv...
• Keywords: Tree (set theory); Global biodiversity; Phylogenetic diversity; Prioritization

Safeguarding Earth's tree diversity is a conservation priority due to the importance of trees for biodiversity and ecosystem functions services such as carbon sequestration. Here, we improve foundation effective global by analyzing recently developed database species covering 46,752 species. We quantify range protection anthropogenic pressures each develop priorities across taxonomic, phylogenetic, functional dimensions. also assess effectiveness several influential proposed prioritization frameworks protect top 17% 50% areas. find that an average 50.2% species' occurs in 110-km grid cells without any protected areas (PAs), with 6,377 small-range fully unprotected, 83% experience nonnegligible human pressure their on average. Protecting high-priority thresholds would increase proportion 65.5% 82.6%, respectively, leaving many fewer (2,151 2,010) completely unprotected. The identified match well Global 200 Ecoregions framework, revealing large part optimize terrestrial overall. Based estimates >46,000 species, our findings show receive limited current PAs are under substantial pressure. Improved overall strongly benefit diversity.