Título:	Landscape dynamics and diversification of the megadiverse South American freshwater fish fauna
Autor(es):	Cassemiroa, Fernanda A. S. Albert, James S. Antonelli, Alexandre Menegotto, André Wüest, Rafael O. Cerezer, Felipe Coelho, Marco Túlio P. Reis, Roberto E. Tan, Milton Tagliacollo, Victor Bailly, Dayani Silva, Valéria F. B. da Frota, Augusto Graça, Weferson J. da Ré, Reginaldo Ramos, Telton Oliveira, Anielly G. Dias, Murilo Sversut Colwell, Robert K. Rangel, Thiago F. Graham, Catherine H.
ORCID:	https://orcid.org/0000-0003-3015-5524 https://orcid.org/0000-0003-1842-9297 https://orcid.org/0000-0003-1842-9297 https://orcid.org/0000-0001-6047-1945 https://orcid.org/0000-0002-7831-3053 https://orcid.org/0000-0003-3746-6894 https://orcid.org/0000-0002-9803-0827 https://orcid.org/0000-0003-1493-9409 https://orcid.org/0000-0002-6954-9902 https://orcid.org/0000-0002-0532-4640 https://orcid.org/0000-0002-8925-5629 https://orcid.org/0000-0001-6452-3466 https://orcid.org/0000-0002-7213-5284
Afiliação do autor:	Federal University of Goiás, Department of Ecology, Graduate Program in Ecology and Evolution University of Louisiana at Lafayette, Department of Biology University of Gothenburg, Gothenburg Global Biodiversity Centre, Department of Biological and Environmental Sciences Royal Botanic Gardens University of Oxford, Department of Plant Sciences Federal University of Goiás, Department of Ecology, Graduate Program in Ecology and Evolution Swiss Federal Institute for Forest, Snow and Landscape Research WSL Federal University of Santa Maria Federal University of Goiás, Department of Ecology, Graduate Program in Ecology and EvolutionSwiss Federal Institute for Forest, Snow and Landscape Research WSL Federal University of Goiás, Department of Ecology, Graduate Program in Ecology and Evolution Pontifical Catholic University of Rio Grande do Sul University of Illinois at Urbana-Champaign, Illinois Natural History Survey Federal University of Uberlândia State University of Maringá, Centre of Biological Sciences, Department of Biology, Graduate Programme in Ecology of In-land Water Ecosystems, Centre of Research in Limnology, Ichthyology and Aquaculture (Nupélia) State University of Mato Grosso do Sul State University of Maringá, Centre of Biological Sciences, Department of Biology, Graduate Programme in Ecology of In-land Water Ecosystems, Centre of Research in Limnology, Ichthyology and Aquaculture (Nupélia) State University of Maringá, Centre of Biological Sciences, Department of Biology, Graduate Programme in Ecology of In-land Water Ecosystems, Centre of Research in Limnology, Ichthyology and Aquaculture (Nupélia) Technological University of Paraná, Department of Computer Science Federal University of Paraíba, Department of Systematic and Ecology State University of Maringá, Centre of Biological Sciences, Department of Biology, Graduate Programme in Ecology of In-land Water Ecosystems, Centre of Research in Limnology, Ichthyology and Aquaculture (Nupélia) University of Brasília, Department of Ecology Federal University of Goiás, Department of Ecology, Graduate Program in Ecology and Evolution University of Connecticut, Department of Ecology and Evolution University of Colorado Museum of Natural History Federal University of Goiás, Department of Ecology, Graduate Program in Ecology and Evolution Swiss Federal Institute for Forest, Snow and Landscape Research WSL
Assunto:	Biogeografia Diversificação de linhagens Filogenética História geológica Biodiversidade
Data de publicação:	3-Jan-2023
Editora:	PNAS
Referência:	CASSEMIROA, Fernanda A. S. et al. Landscape dynamics and diversification of the megadiverse South American freshwater fish fauna. PNAS, v. 120, n. 2, e2211974120, 2023. DOI: https://doi.org/10.1073/pnas.2211974120. Disponível em: https://www.pnas.org/doi/10.1073/pnas.2211974120. Acesso em: 29 set. 2023.
Abstract:	Landscape dynamics are widely thought to govern the tempo and mode of continental radiations, yet the effects of river network rearrangements on dispersal and lineage diver- sification remain poorly understood. We integrated an unprecedented occurrence dataset of 4,967 species with a newly compiled, time-calibrated phylogeny of South American freshwater fishes—the most species-rich continental vertebrate fauna on Earth—to track the evolutionary processes associated with hydrogeographic events over 100 Ma. Net lineage diversification was heterogeneous through time, across space, and among clades. Five abrupt shifts in net diversification rates occurred during the Paleogene and Miocene (between 30 and 7 Ma) in association with major landscape evolution events. Net diversification accelerated from the Miocene to the Recent (c. 20 to 0 Ma), with Western Amazonia having the highest rates of in situ diversification, which led to it being an important source of species dispersing to other regions. All regional biotic interchanges were associated with documented hydrogeographic events and the forma- tion of biogeographic corridors, including the Early Miocene (c. 23 to 16 Ma) uplift of the Serra do Mar and Serra da Mantiqueira and the Late Miocene (c. 10 Ma) uplift of the Northern Andes and associated formation of the modern transcontinental Amazon River. The combination of high diversification rates and extensive biotic interchange associated with Western Amazonia yielded its extraordinary contemporary richness and phylogenetic endemism. Our results support the hypothesis that landscape dynamics, which shaped the history of drainage basin connections, strongly affected the assembly and diversification of basin-wide fish faunas.
Unidade Acadêmica:	Instituto de Ciências Biológicas (IB) Departamento de Ecologia (IB ECL)
Licença:	Copyright © 2023 the Author(s). Published by PNAS. This open access article is distributed under Creative Commons Attribution License 4.0 (CC BY).
DOI:	https://doi.org/10.1073/pnas.2211974120
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