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Freshwater fish diversity in the western Amazon basin shaped by Andean uplift since the Late Cretaceous.
Boschman, Lydian M; Carraro, Luca; Cassemiro, Fernanda A S; de Vries, Jorad; Altermatt, Florian; Hagen, Oskar; Hoorn, Carina; Pellissier, Loïc.
Afiliación
  • Boschman LM; Department of Environmental System Science, ETH Zürich, Zürich, Switzerland. l.m.boschman@uu.nl.
  • Carraro L; Swiss Federal Research Institute WSL, Birmensdorf, Switzerland. l.m.boschman@uu.nl.
  • Cassemiro FAS; Department of Earth Sciences, Utrecht University, Utrecht, the Netherlands. l.m.boschman@uu.nl.
  • de Vries J; Department of Evolutionary Biology and Environmental Studies, University of Zürich, Zürich, Switzerland.
  • Altermatt F; Department of Aquatic Ecology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.
  • Hagen O; Department of Ecology, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
  • Hoorn C; Department of Environmental System Science, ETH Zürich, Zürich, Switzerland.
  • Pellissier L; Forest Ecology and Forest Management Group, Wageningen University, Wageningen, the Netherlands.
Nat Ecol Evol ; 7(12): 2037-2044, 2023 Dec.
Article en En | MEDLINE | ID: mdl-37857892
South America is home to the highest freshwater fish biodiversity on Earth, and the hotspot of species richness is located in the western Amazon basin. The location of this hotspot is enigmatic, as it is inconsistent with the pattern observed in river systems across the world of increasing species richness towards a river's mouth. Here we investigate the role of river capture events caused by Andean mountain building and repeated episodes of flooding in western Amazonia in shaping the modern-day richness pattern of freshwater fishes in South America, and in Amazonia in particular. To this end, we combine a reconstruction of river networks since 80 Ma with a mechanistic model simulating dispersal, allopatric speciation and extinction over the dynamic landscape of rivers and lakes. We show that Andean mountain building and consequent numerous small river capture events in western Amazonia caused freshwater habitats to be highly dynamic, leading to high diversification rates and exceptional richness. The history of marine incursions and lakes, including the Miocene Pebas mega-wetland system in western Amazonia, played a secondary role.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ecosistema / Biodiversidad Límite: Animals País/Región como asunto: America do sul Idioma: En Revista: Nat Ecol Evol Año: 2023 Tipo del documento: Article País de afiliación: Suiza Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ecosistema / Biodiversidad Límite: Animals País/Región como asunto: America do sul Idioma: En Revista: Nat Ecol Evol Año: 2023 Tipo del documento: Article País de afiliación: Suiza Pais de publicación: Reino Unido