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

High exposure of global tree diversity to human pressure

Cerabolini, Bruno Enrico Leone;
2022-01-01

Abstract

Safeguarding Earth’s tree diversity is a conservation priority due to the importance of trees, for biodiversity and ecosystem functions and services such as carbon sequestration. Here,, we improve the foundation for effective conservation of global tree diversity by analyzing, a recently developed database of tree species covering 46,752 species. We quantify range, protection and anthropogenic pressures for each species and develop conservation priorities, across taxonomic, phylogenetic, and functional diversity dimensions. We also assess, the effectiveness of several influential proposed conservation prioritization frameworks to, protect the top 17% and top 50% of tree priority areas. We find that an average of, 50.2% of a tree species’ range occurs in 110-km grid cells without any protected areas, (PAs), with 6,377 small-range tree species fully unprotected, and that 83% of tree species, experience nonnegligible human pressure across their range on average. Protecting high priority, areas for the top 17% and 50% priority thresholds would increase the average, protected proportion of each tree species’ range to 65.5% and 82.6%, respectively, leaving, many fewer species (2,151 and 2,010) completely unprotected. The priority areas, identified for trees match well to the Global 200 Ecoregions framework, revealing that, priority areas for trees would in large part also optimize protection for terrestrial biodiversity, overall. Based on range estimates for >46,000 tree species, our findings show that a, large proportion of tree species receive limited protection by current PAs and are under, substantial human pressure. Improved protection of biodiversity overall would also, strongly benefit global tree diversity.
2022
2022
biodiversity j conservation frameworks j land use j protected areas j tree species
Guo, Wen-Yong; Serra-Diaz, Josep M.; Schrodt, Franziska; Eiserhardt, Wolf L.; Maitner, Brian S.; Merow, Cory; Violle, Cyrille; Anand, Madhur; Belluau, Michaël; Bruun, Hans Henrik; Byun, Chaeho; Catford, Jane A.; Cerabolini, Bruno Enrico Leone; Chacón-Madrigal, Eduardo; Ciccarelli, Daniela; Cornelissen, J. Hans C.; Dang-Le, Anh Tuan; de Frutos, Angel; Dias, Arildo S.; Giroldo, Aelton B.; Guo, Kun; Gutiérrez, Alvaro G.; Hattingh, Wesley; He, Tianhua; Hietz, Peter; Hough-Snee, Nate; Jansen, Steven; Kattge, Jens; Klein, Tamir; Komac, Benjamin; Kraft, Nathan J. B.; Kramer, Koen; Lavorel, Sandra; Lusk, Christopher H.; Martin, Adam R.; Mencuccini, Maurizio; Michaletz, Sean T.; Minden, Vanessa; Mori, Akira S.; Niinemets, Ülo; Onoda, Yusuke; Peñuelas, Josep; Pillar, Valério D.; Pisek, Jan; Robroek, Bjorn J. M.; Schamp, Brandon; Slot, Martijn; Sosinski, Ênio Egon; Soudzilovskaia, Nadejda A.; Thiffault, Nelson; van Bodegom, Peter; van der Plas, Fons; Wright, Ian J.; Xu, Wu-Bing; Zheng, Jingming; Enquist, Brian J.; Svenning, Jens-Christian
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/2136970
 Attenzione

L'Ateneo sottopone a validazione solo i file PDF allegati

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 20
  • ???jsp.display-item.citation.isi??? 20
social impact