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Historical Biogeography of Neotropical Freshwater Fishes$
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James Albert

Print publication date: 2011

Print ISBN-13: 9780520268685

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520268685.001.0001

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Major Biogeographic and Phylogenetic Patterns

Major Biogeographic and Phylogenetic Patterns

(p.20) (p.21) Two Major Biogeographic and Phylogenetic Patterns
Historical Biogeography of Neotropical Freshwater Fishes

James S. Albert

Paulo Petry

Roberto E. Reis

University of California Press

This chapter summarizes the major patterns of biodiversity and biogeography in Neotropical freshwaters. It describes latitudinal and altitudinal gradients in species richness and species-area relationships and evaluates the role of barriers and corridors to the formation of the species-rich Amazon-Orinoco-Guiana Core and the highly endemic Continental Periphery. It proposes testable macroevolutionary hypotheses for the elevated species richness of the Neotropical ichthyofauna based on rates of speciation, extinction, and dispersal of taxa on the Brazilian and Guiana shields and in the Amazonian lowlands.

Keywords:   Neotropical freshwaters, biodiversity, biogeography, species richness, Amazon-Orinoco-Guiana Core, Continental Periphery, macroevolutionary hypotheses, Neotropical ichthyofauna, Guiana shields

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