Paleo-Drainage Basin Connectivity Predicts Evolutionary Relationships across Three Southeast Asian Biodiversity Hotspots

摘要: Understanding factors driving diversity across biodiversity hotspots is critical for formulating conservation priorities in the face of ongoing and escalating environmental deterioration. While encompass a small fraction Earth's land surface, more than half world's plants two-thirds terrestrial vertebrate species are endemic to these hotspots. Tropical Southeast (SE) Asia displays extraordinary richness, encompassing four hotspots, though disentangling multiple potential drivers richness confounded by region's dynamic geological climatic history. Here, we use multilocus molecular genetic data from dense multispecies sampling freshwater fishes three test effect Quaternary climate change resulting drainage rearrangements on aquatic faunal diversification. Cenozoic processes have clearly shaped evolutionary history SE Asian halfbeak fishes, show that paleo-drainage re-arrangements played significant role spatiotemporal evolution lowland taxa, provide efforts. (Freshwater; geology; halfbeak; island radiation; Miocene; Pleistocene; river; Asia.)