Stronger latitudinal phylogenetic patterns in woody angiosperm assemblages with higher dispersal abilities in China

作者：Lu Jin, Jiajia Liu, Qiaoming Li, Luxiang Lin, Xiaona Shao, Tian‐Wen Xiao, Buhang Li, Xiangcheng Mi, Haibao Ren, Yan Zhu, Xiujuan Qiao, Ju‐Yu Lian, Xu‐Gao Wang, Hu Du, Guangze Jin, Jens‐Christian Svenning, Gang Hao, Xue‐Jun Ge · 发表于：Journal of Biogeography · 年份：2023 · DOI：10.1111/jbi.14746 · 被引用次数：14 · 研究领域：Ecology and Vegetation Dynamics Studies、Plant and animal studies、Plant Diversity and Evolution

Abstract Aim The equator‐to‐poles decline in the number of species, namely the latitudinal diversity gradient (LDG), is the most conspicuous pattern in biology, yet the underlying mechanisms of this pattern remain controversial. Species dispersal could have strong effects on large‐scale species distributions but has rarely been considered in understanding the LDG. Here we sought to examine how dispersal ability may influence the latitudinal phylogenetic patterns of woody angiosperm assemblages. Location China. Taxon Woody angiosperms. Methods Based on a highly supported mega‐phylogeny constructed from plastid genomes, we assessed the patterns of phylogenetic relatedness and dissimilarity of 1184 trees with three different seed dispersal modes (i.e. zoochory, anemochory and autochory) in 12 permanent forest dynamic plots covering tropical, subtropical and temperate zones in China. Results We found that, compared with zoochorous and anemochorous species, the less vagile autochorous trees exhibited a much weaker latitudinal pattern in phylogenetic relatedness and higher phylogenetic dissimilarity among plots. The phylogenetic dissimilarity pattern of autochorous trees was explained more by geographic distance than environmental factors, consistent with a dominant role for dispersal limitation. Main Conclusions Our study, for the first time, demonstrates that seed dispersal mode strongly influences the latitudinal phylogenetic patterns of woody angiosperm assemblages in China and...