The Andes through time: evolution and distribution of Andean floras
2022
Pérez-Escobar, Oscar Alejandro | Zizka, Alexander | Bermúdez, Mauricio A. | Meseguer, Andrea S. | Condamine, Fabien L. | Hoorn, C. (Carina) | Hooghiemstra, Henry | Pu, Yuanshu | Bogarín, Diego | Boschman, Lydian M. | Pennington, Toby | Antonelli, Alexandre | Chomicki, Guillaume
The Andes are the world's most biodiverse mountain chain, encompassing a complex array of ecosystems from tropical rainforests to alpine habitats. We provide a synthesis of Andean vascular plant diversity by estimating a list of all species with publicly available records, which we integrate with a phylogenetic dataset of 14 501 Neotropical plant species in 194 clades. We find that (i) the Andean flora comprises at least 28 691 georeferenced species documented to date, (ii) Northern Andean mid-elevation cloud forests are the most species-rich Andean ecosystems, (iii) the Andes are a key source and sink of Neotropical plant diversity, and (iv) the Andes, Amazonia, and other Neotropical biomes have had a considerable amount of biotic interchange through time.
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