scholarly journals The Tocantins-Araguaia Basin as a migratory route and a wintering area of Falco peregrinus (Aves, Falconidae)

2019 ◽  
Vol 27 (4) ◽  
pp. 284-290
Author(s):  
Túlio Dornas ◽  
Willian Menq ◽  
Tiago Junqueira ◽  
Estevão F. Santos
Keyword(s):  
South America ◽  
River Basin ◽  
The State ◽  
Migration Route ◽  
Falco Peregrinus ◽  
Central Brazil ◽  
Araguaia River ◽  
Wintering Area ◽  
Migratory Route

AbstractThe Peregrine Falco peregrinus, is an Nearctic migrant to Brazil where its status in central Brazil is still poorly known. Herein we present a compilation of records of the species from the state of Tocantins and comment on its use of a wintering site in the state of Goiás. These records show that the Tocantins-Araguaia River Basin is a migration route for the species, and therefore a mid-continental migration route through the interior of South America.

scholarly journals The genus Pinnularia (Bacillariophyta, Pinnulariaceae) from Lago dos Tigres, Britânia, Goiás, Brazil

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Weliton José da Silva ◽  
Daiane Ruwer ◽  
Ina Nogueira ◽  
Bárbara Dunck
Keyword(s):  
River Basin ◽  
First Record ◽  
The State ◽  
Aquatic Systems ◽  
Amazon River ◽  
Taxonomic Study ◽  
Amazon River Basin ◽  
Parana River ◽  
Araguaia River ◽  
Infraspecific Taxa

Studies of the genus Pinnularia Ehrenb. are only incipient in central-western Brazil, especially in Goiás. Only 20 of the 170 taxa known from Brazil were recorded in this state until now. A taxonomic study of Pinnularia from Lago dos Tigres (Tocantins-Araguaia River Basin) recorded 20 specific and infraspecific taxa, distributed in 17 species, including P. instabilis whose lectotype is designated here. Only P. meridiana var. meridiana was previously recorded in aquatic systems of the state. Eighteen taxa are newly recorded for Goiás, and one is the first record in Brazil. The Pinnularia flora from Lago dos Tigres contains nine taxa in common with the Amazon River Basin flora, and seven other taxa that occur elsewhere in the Paraná River Basin.

scholarly journals Influence of environmental parameters on fish assemblage of a neotropical river with a flood pulse regime, Central Brazil

2009 ◽  
Vol 7 (3) ◽  
pp. 421-428 ◽  
Author(s):  
Tatiana Lima de Melo ◽  
Francisco Leonardo Tejerina-Garro ◽  
Cesar Enrique de Melo
Keyword(s):  
River Basin ◽  
Fish Assemblage ◽  
Riparian Vegetation ◽  
Fish Assemblages ◽  
Environmental Parameters ◽  
Flood Pulse ◽  
Fish Assemblage Structure ◽  
Portable Equipment ◽  
Central Brazil ◽  
Araguaia River

This study aims to determine which of twelve environmental parameters (five physicochemical and seven hydromorphological) influence on the fish assemblage structure of the lower Mortes River basin located in the Bananal floodplain of the Araguaia River basin, Central Brazil. Sampling was conducted in six stretches of 1000 m each during the high and low waters. Fish were captured using gill nets and environmental parameters were measured by portable equipment or determined visually. The co-inertia analysis indicated that two physicochemical (dissolved oxygen and water transparency), and four hydromorphological (channel width and depth, riparian vegetation cover and type of the riverside substrate) parameters structure the fish assemblages, both driven by the regional hydrological patterns (flood pulse). These results are explained by fish-environmental parameters relationship characteristic of the aquatic Neotropical systems.

scholarly journals Comparison of the Condition Factor of Five Fish Species of the Araguaia River Basin, Central Brazil

2016 ◽  
Vol 5 (1) ◽  
pp. 226
Author(s):  
Bruno Bastos Gonçalves ◽  
Francisco Leonardo Tejerina-Garro ◽  
Carlos De Melo e Silva Neto
Keyword(s):  
River Basin ◽  
Fish Species ◽  
Condition Factor ◽  
Central Brazil ◽  
Araguaia River

Este estudo objetiva avaliar o fator de condição (K) de cinco espécies de peixes (Serrasalmus rhombeus, Psectrogaster amazonica, Loricaria cataphracta, Panaque nigrolineatus e Squaliforma emarginata). As coletas foram realizadas utilizando-se quatro jogos de redes de malhar e cinco armadilhas, os quais foram colocados ao longo de um trecho de 1000 m das 17:00 às 7:00. Os peixes coletados foram identificados taxonomicamente, pesados (g) e medidos (comprimento standard; mm). A condição física dos peixes foi calculada pelo fator de condição (K=W/L³) e comparada por grupo de cursos de água utilizando um teste de Kruskal-Wallis. Das cinco espécies consideradas S. emarginata e P. amazonica mostraram diferenças na condição física por grupo de cursos de água. Os maiores valores de K de ambas as espécies correspondem aos espécimes localizados em cursos de água de cabeceira, enquanto que baixos valores são encontrados em peixes dos cursos de água na planície.

scholarly journals Ornithologycal impotrance of Gruza accumulation

2004 ◽  
pp. 55-64 ◽  
Author(s):  
Daliborka Barjaktarov
Keyword(s):  
Agricultural Land ◽  
Bird Species ◽  
Middle Part ◽  
The State ◽  
Migration Route ◽  
Anthropogenic Influence ◽  
Artificial Lake ◽  
Bird Populations ◽  
Wintering Area

Damming the middle part of Gruza River, in order to supply drinking and technical water for Kragujevac District caused appearance of Gruzanska accumulation. This lake fills the depression of Knicko Polje between the Gledicke Mts and Kotlenik. As the ornithofauna of accumulation lakes, both in this country and abroad, is poorly studied, this paper presents the data on the state of ornithofauna of Gruzansko Lake. The lake has an important role in migration of both native and foreign bird populations, but also as a wintering area for certain species of ducks and geese, as it is situated on the assumed Morava -Vardar migration route. During the research, 78 bird species were recorded and for 25 species it was proven that they breed in the area. Most species were recorded in the zone of strong anthropogenic influence, which is understandable as before the building of the dam and the artificial lake the Knicko Polje was dominated by agricultural land, mowed meadows and orchards.

scholarly journals Distribution extension and a new state record for Amphisbaena mertensi Strauch, 1881 (Squamata, Amphisbaenidae) in central Brazil

Check List ◽  
2020 ◽  
Vol 16 (3) ◽  
pp. 655-659
Author(s):  
Bruno Alessandro Augusto Peña Corrêa ◽  
Afonso Afonso Santiago de Oliveira Meneses
Keyword(s):  
South America ◽  
Urban Area ◽  
New Record ◽  
The State ◽  
Distribution Map ◽  
Central Brazil ◽  
The North ◽  
South Central ◽  
Nearest Point ◽  
Distrito Federal

We updated the distribution of Amphisbaena mertensi to northeastern central Brazil based on the finding of a specimen in an urban area in the Cerrado. This species had already been recorded in south-central Brazil, Paraguay, and Argentina. Our new record is 300 km away from the nearest point, Araguari, in the north of the State of Minas Gerais, Brazil. We included a distribution map for the species in South America, and a list of the amphisbaenas species found in Distrito Federal and discuss the conservation of this group.

A Synopsis of Dicliptera (Acanthaceae) in Brazil, with the Description of Two New Species

2020 ◽  
Vol 45 (2) ◽  
pp. 340-348
Author(s):  
James Lucas da Costa-Lima ◽  
Earl Celestino de Oliveira Chagas
Keyword(s):  
New Species ◽  
South America ◽  
The State ◽  
Northeastern Brazil ◽  
Mato Grosso ◽  
The North ◽  
New Synonyms ◽  
Two New Species ◽  
Mato Grosso Do Sul ◽  
A New Species

Abstract—A synopsis of Dicliptera (Acanthaceae) for Brazil is presented. Six species are recognized: Dicliptera ciliaris, D. sexangularis, and D. squarrosa, widely distributed in South America; D. purpurascens, which ranges from the North Region of Brazil (in the state of Acre) to eastern Bolivia; D. gracilirama, a new species from the Atlantic Forest of northeastern Brazil; and D. granchaquenha, a new species recorded in dry and semideciduous forests in Bolivia and western Brazil, in the state of Mato Grosso do Sul. Furthermore, we propose new synonyms and designate lectotypes for eleven names. An identification key to the six accepted Dicliptera species in Brazil is provided.

scholarly journals Pleistocene Mammals from Pampean Region (Argentina). Biostratigraphic, Biogeographic, and Environmental Implications

Quaternary ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 15
Author(s):  
José Luis Prado ◽  
María Teresa Alberdi ◽  
Jonathan Bellinzoni
Keyword(s):  
South America ◽  
The State ◽  
Historical Study ◽  
South American ◽  
Environmental Implications ◽  
Sedimentary Sequences ◽  
Pampean Region ◽  
Mammalian Faunas ◽  
Pleistocene Mammals ◽  
Fossil Records

The Pampean Region contains sedimentary sequences with abundant mammal fossil records, which constitute the chronological outline of the Plio–Pleistocene of South America. These classic localities have been used for more than a century to correlate with other South American regions. Throughout this time, a series of misinterpretations have appeared. To understand the stratigraphic significance of these localities and the geochronological situation of each unit referring to the Pleistocene, a critical historical study of the antecedents was carried out, evaluating the state of each unit. The biostratigraphic studies of the Pampean Region’s mammalian faunas improved the understanding of biogeographic changes taking into account the environmental fluctuations of the Pleistocene.

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