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Miocene tectonism and the separation of cis- and trans-Andean river basins: Evidence from Neotropical fishes
The fish fauna of trans-Andean river basins in northwestern South America is ancient and diverse, including 14% (558 of 4,085) of all Neotropical teleost species and representing 88% of the ordersExpand
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Miocene marine incursions and marine/freshwater transitions: Evidence from Neotropical fishes
Abstract Amazonian rivers contain a remarkable fauna of endemic species derived from taxa that generally occur in oceans and seas. Several hypotheses have been proposed to explain the origin ofExpand
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A New Species of Gymnotus (Gymnotiformes, Gymnotidae) from Uruguay: Description of a Model Species in Neurophysiological Research
Abstract Gymnotus omarorum is described from coastal and interior drainages of Uruguay, where it is locally abundant in streams and lagoons, and is not known to occur sympatrically with congeners.Expand
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Phylogeny, biogeography, and electric signal evolution of Neotropical knifefishes of the genus Gymnotus (Osteichthyes: Gymnotidae).
The Neotropical knifefish genus Gymnotus is the most broadly distributed and the most diverse (34+species) gymnotiform genus. Its wide range includes both Central and South American drainages,Expand
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Effects of anoxia on the distribution, respiratory strategies and electric signal diversity of gymnotiform fishes
This paper explores the relationship between dissolved oxygen concentration and the distribu- tion and electric signal diversity of 64 species of gymnotiforms from the Teferegion of the upper AmazonExpand
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Sexual Signal Evolution Outpaces Ecological Divergence during Electric Fish Species Radiation
Natural selection arising from resource competition and environmental heterogeneity can drive adaptive radiation. Ecological opportunity facilitates this process, resulting in rapid divergence ofExpand
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Phylogenetic systematics and historical biogeography of the Neotropical electric fish Gymnotus (Teleostei: Gymnotidae)
Abstract Phylogenetic interrelationships of the Neotropical electric fish genus Gymnotus are documented from comparative study of phenotypic data. A data matrix was compiled of 113 phenotypicExpand
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Seven new species of the Neotropical electric fish Gymnotus (Teleostei, Gymnotiformes) with a redescription of G. carapo (Linnaeus)
Seven new species of Gymnotus are described, and a redescription of the type species G. carapo sensu-stricto Linnaeus ( G. carapo s.s.) is provided, from examination of populations from throughoutExpand
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