Distributions and phylogeographic data of rheophilic freshwater fishes provide evidences on the geographic extension of a central-brazilian amazonian palaeoplateau in the area of the present day Pantanal Wetland

Author(s)

Alexandre C. Ribeiro ^[1] ; Rodrigo M. Jacob ^[1] ; Ronnayana R. S. R. Silva ^[2] ; Flávio C. T. Lima ^[4] ; Daniela C. Ferreira ^[1] ; Katiane M. Ferreira ^[1] ; Tatiane C. Mariguela ^[4] ; Luiz H. G. Pereira ^[4] ; Claudio Oliveira ^[4]

Affiliation

^[1] Univ Fed Mato Grosso UFMT, Dept Biol & Zool, Inst Biociencias, BR-78060900 Cuiaba, MT - Brazil

^[2] INPA, Programa Posgrad Biol Agua Doce & Pesca Interior, Manaus, Amazonas - Brazil

^[3] Universidade Estadual de Campinas. Museu de História Natural Adão José Cardoso - Brasil

^[4] Univ Estadual Paulista, Inst Biociencias, Dept Morfol, Sao Paulo - Brazil

• Document type: Journal article
• Source: Neotropical Ichthyology; v. 11, n. 2, p. 319-326, 2013-06-00.

Abstract

The analysis of the distribution patterns presented by examples of freshwater fishes restricted to headwater habitat: the anostomid Leporinus octomaculatus, the characins Jubiaba acanthogaster, Oligosarcus perdido, Moenkhausia cosmops, Knodus chapadae, Planaltina sp., the loricariid Hypostomus cochliodon, and the auchenipterid Centromochlus sp. provided evidences of a relatively recent shared history between the highlands of the upper rio Paraguay and adjoining upland drainage basins. Restricted to headwater of the uplands in the upper rio Paraguay and adjoining basins, these species provide biological evidence of the former extension of the central Brazilian plateau before the origin of the Pantanal Wetland. Disjunction took place due to an ecological barrier to these rheophilic taxa represented tectonic subsidence related to the origin of the Pantanal Wetland. Molecular analysis of Jubiaba acanthogaster revealed that the sample from the upper rio Xingu basin are the sister-group of a clade that includes samples from the upper rio Arinos (upper rio Tapajós) plus the upper rio Paraguay basin, supporting the assumption that the origin of the upper rio Paraguay basin causing vicariance between this basin and the upper rio Tapajós is the least vicariant event in the evolutionary history of the group. (AU)

• FAPESP's process: 10/17009-2 - Biodiversity and phylogenetic relationships of the genera Astyanax, Hemigrammus, Hyphessobrycon and Moenkhausia (Characiformes: Characidae)
• Grantee: Claudio de Oliveira
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
• FAPESP's process: 07/02978-7 - Systematics of Brycon (Teleostei: Ostariophysi: Characiformes: Characidae) genus: taxonomic revision of species from trans-Andean South America and Central America and Brycon pesu complex and Bryconinae phylogeny and biogeography
• Grantee: Flávio César Thadeo de Lima
• Support Opportunities: Scholarships in Brazil - Post-Doctoral