Radiating Diversification and Niche Conservatism Jointly Shape the Inverse Latitudinal Diversity Gradient of Potentilla L. (Rosaceae)
BMC Plant Biology(2024)
摘要
The latitudinal diversity gradient (LDG), characterized by an increase in species richness from the poles to the equator, is one of the most pervasive biological patterns. However, inverse LDGs, in which species richness peaks in extratropical regions, are also found in some lineages and their causes remain unclear. Here, we test the roles of evolutionary time, diversification rates, and niche conservatism in explaining the inverse LDG of Potentilla (ca. 500 species). We compiled the global distributions of 90
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关键词
Diversification,Evolutionary time,Inverse latitudinal diversity gradient,Niche conservatism,Potentilla,Species richness
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