Evolutionary history shapes variation of wood density of tree species across the world
Li, Fangbing (Zhejiang A&F University)
Qian, Hong (Illinois State Museum)
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Amishev, Dzhamal Y. (Lakehead University. Department of Natural Resources Management)
Wang, Zixuan (Anhui Agricultural University)
Zhang, Changyue (Anhui Agricultural University)
Wu, Tonggui (Chinese Academy of Forestry)
Xu, Xiaoniu (Anhui Agricultural University)
Tao, Xiao (Anhui Agricultural University)
Huang, Xingzhao (Anhui Agricultural University)

Data:	2024
Resum:	The effect of evolutionary history on wood density variation may play an important role in shaping variation in wood density, but this has largely not been tested. Using a comprehensive global dataset including 27,297 measurements of wood density from 2621 tree species worldwide, we test the hypothesis that the legacy of evolutionary history plays an important role in driving the variation of wood density among tree species. We assessed phylogenetic signal in different taxonomic (e. g. , angiosperms and gymnosperms) and ecological (e. g. , tropical, temperate, and boreal) groups of tree species, explored the biogeographical and phylogenetic patterns of wood density, and quantified the relative importance of current environmental factors (e. g. , climatic and soil variables) and evolutionary history (i. e. , phylogenetic relatedness among species and lineages) in driving global wood density variation. We found that wood density displayed a significant phylogenetic signal. Wood density differed among different biomes and climatic zones, with higher mean values of wood density in relatively drier regions (highest in subtropical desert). Our study revealed that at a global scale, for angiosperms and gymnosperms combined, phylogeny and species (representing the variance explained by taxonomy and not direct explained by long-term evolution process) explained 84. 3% and 7. 7% of total wood density variation, respectively, whereas current environment explained 2. 7% of total wood density variation when phylogeny and species were taken into account. When angiosperms and gymnosperms were considered separately, the three proportions of explained variation are, respectively, 84. 2%, 7. 5% and 6. 7% for angiosperms, and 45. 7%, 21. 3% and 18. 6% for gymnosperms. Our study shows that evolutionary history outpaced current environmental factors in shaping global variation in wood density.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Wood density ; Phylogeny ; Angiosperms ; Gymnosperms ; Climate factors ; Biophysical parameters
Publicat a:	Plant Diversity, Vol. 46, Issue 3 (May 2024) , p. 283-293, ISSN 2468-2659

DOI: 10.1016/j.pld.2024.04.002
PMID: 38798729

11 p, 1.6 MB

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