Results 21 to 30 of about 2,221,022 (270)

Fishes of the upper rio Paraná basin: diversity, biogeography and conservation

open access: yesNeotropical Ichthyology
The upper rio Paraná basin drains the most developed and environmentally degraded region in South America: the Brazilian southeast. While it is one of the most well-known Neotropical fish assemblages, it is also one of the most threatened by anthropic ...
F. Dagosta   +13 more
semanticscholar   +1 more source

Systematics and biogeography of the genus Phalloceros Eigenmann, 1907 (Cyprinodontiformes: Poeciliidae: Poeciliinae), with the description of twenty-one new species

open access: yesNeotropical Ichthyology
The genus Phalloceros is revised. Phalloceros caudimaculatus (Hensel, 1868) and twenty-one new species are recognized in Phalloceros. The species and their distributions are: P. alessandrae, small coastal drainages of the Paraná State; P.
Paulo Henrique Franco Lucinda
doaj   +1 more source

Morphology and molecular evidence of a new species of Characidium (Characiformes: Crenuchidae) from the edges of a protected area at Rio Itararé, upper Rio Paraná, southern Brazil.

open access: yesJournal of Fish Biology
A new species of Characidium is described from the headwaters of the Rio Itararé, upper Rio Paraná basin, at the boundaries of the Ponta Grossa Arch and the Devonian Escarpment Environmental Protection Area.
B. H. M. Stabile   +4 more
semanticscholar   +1 more source

Unrecognized biodiversity in a world’s hotspot: three new species of Melanorivulus (Cyprinodontiformes: Rivulidae) from tributaries of the right bank of the Rio Paraná basin, Brazilian Cerrado

open access: yes, 2018
The genus Melanorivulus presents a wide geographical distribution in the Neotropical region. Among Melanorivulus, the M. pictus species group has currently 18 species distributed in the Brazilian Cerrado, mainly in the upper Rio Paraná basin, with some ...
M. Volcan   +2 more
semanticscholar   +1 more source

AVALIAÇÃO DA VELOCIDADE DE DESLOCAMENTO DE BARRAS FLUVIAIS DO RIO PARANÁ POR MEIO DE IMAGENS CBERS/CCD

open access: yesRevista Brasileira de Geomorfologia, 2012
A formação do reservatório de Porto Primavera cortou o suprimento de sedimentos do rio Paraná. O primeiro efeito a ser observado foi a redução da carga suspensa e a seguir a progressiva retirada das formas de leito do rio.
Edvard Elias Souza Filho   +1 more
doaj   +1 more source

Ichthyofauna of the Ribeirao Frutal and tributaries, upper Rio Parana basin, Minas Gerais, Southeastern Brazil

open access: yes, 2018
The Ribeirão Frutal basin is located within the upper Rio Paraná system, in the Frutal municipality, Minas Gerais State, Southeastern Brazil. Until now, there was no complete ichthyological survey published for this small basin.
Valter M. Azevedo-Santos   +2 more
semanticscholar   +1 more source

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+2 more sources

Estatísticas descritivas de séries de vazão e cota fluviométrica: caracterização hidrológica do alto rio Paraná pós-barragem de Porto Primavera

open access: yesGeoTextos
Este estudo apresenta uma análise estatística detalhada das séries históricas de vazão e cota fluviométrica do alto rio Paraná, obtidas na estação Porto São José (ANA), entre 1999 e 2019. O objetivo foi caracterizar a variabilidade hidrológica interanual
Alisson Santori   +2 more
doaj   +1 more source

A INFLUÊNCIA DA INUNDAÇÃO NA DINÂMICA DA VEGETAÇÃO DA PLANÍCIE FLUVIAL DO ALTO RIO PARANÁ EM 2007

open access: yesRevista Brasileira de Geomorfologia, 2013
A distribuição da vegetação da planície fluvial do rio Paraná é controlada pelas formas de relevo, pela dinâmica fluvial e pela ação antrópica. A dinâmica fluvial exerce sua influência por meio da variação do nível de água, responsável pela expansão ou ...
Everton Hafemann Fragal   +2 more
doaj   +1 more source

A new species of Bryconamericus (Characidae: Stevardiinae: Diapomini) from the upper rio Paraná basin, Brazil

open access: yes, 2017
Bryconamericus is the most diverse genus within Stevardiinae, comprising 61 valid species distributed in Cisand TransAndean basins from Panama in Central America to northern Argentina in South America.
F. C. Jerep, O. Shibatta
semanticscholar   +1 more source

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