Results 41 to 50 of about 48,745 (211)

METAL DYNAMICS IN A TROPICAL WATERSHED: THE SÃO FRANCISCO RIVER AND ITS COMPARTMENTS

Geochimica Brasiliensis, 2019
Water ecosystems are one of the most threaten environments due to anthropogenic pressures, among them the contamination of metals that are toxic to every life form.
Isabela Claret Torres, Adolf Heinrich Horn, Rodrigo Silva Lemos   +2 more
doaj   +1 more source

Analysis of production cost and profit of melons produced in the sub-middle São Francisco river Valley, Brazil. [PDF]

, 2018
In this study, the production costs and profit of melon exploitation in the Sub-middle São Francisco River Valley were analyzed.
ARAUJO, J. L. P., ARAÚJO, E. P.
core  

How much sampling is enough? Four decades of understorey bird mist‐netting across Amazonia define the minimum effort to uncover species assemblage structure

Ibis, EarlyView.
Mist‐net sampling comprises a key methodological component of assemblage‐wide avifaunal studies, particularly in the understorey of closed‐canopy tropical forests. To investigate mist‐net bird captures and species assemblage structure, we compiled data from 312 sites across the Pan‐Amazon.
Pilar L. Maia‐Braga, Anderson S. Bueno, Richard G. Davies, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres   +14 more
wiley   +1 more source

Determination of bioactive amines in tropical wines produced at Brazilian's Northeast. [PDF]

, 2015
The wine production in the region of the Sub-middle São Francisco river Valley has started there are few years ago.The region has a climate variability that allows to obtain two or three harvests per year, which influences significantly the composition ...
ARAÚJO, A. J. B., LIMA, G. P. P., NASCIMENTO, R. L., PEREIRA, G. E., SANTOS, A. R. L., VANDERLINDE, R.   +5 more
core   +1 more source

A taxonomic review of the neotropical genus Coprophanaeus Olsoufieff, 1924 (Coleoptera: Scarabaeidae, Scarabaeinae) [PDF]

, 2010
The Neotropical genus Coprophanaeus Olsoufieff (1924), as classified here, comprises 38 species distributed among three subgenera (Megaphanaeus Olsoufieff, Metallophanaeus Olsoufieff, and Coprophanaeus s. str.) and eight species groups.
Edmonds, William David, Zídek, Jiri
core   +2 more sources

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures

Journal of Fish Biology, EarlyView.
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
F. L. Freitas, N. S. Pereira, P. B. Pinheiro, R. Schroeder, A. T. Correia   +4 more
wiley   +1 more source

Causes and consequences of seasonal changes in the water flow of the São Francisco river in the semiarid of Brazil

Environmental and Sustainability Indicators, 2020
The objective of this study was to evaluate the causes and consequences of changes in the water flow of the São Francisco River, on the border between the states of Sergipe and Alagoas, a Brazilian semiarid region.
Anderson dos Santos, Pabricio Marcos Oliveira Lopes, Marcos Vinícius da Silva, Alexandre Maniçoba da Rosa Ferraz Jardim, Geber Barbosa de Albuquerque Moura, Gabriel Siqueira Tavares Fernandes, Douglas Alberto de Oliveira Silva, John Lennon Bezerra da Silva, Joez André de Moraes Rodrigues, Emanuel Araújo Silva, José Francisco de Oliveira-Júnior   +10 more
doaj   +1 more source

Transfering water among basins: an ecological assessment of Northeast Brazilian reservoirs [PDF]

, 2011
The national project of the São Francisco river integration on northeast basins, lead by the Brazilian Ministry of National Integration, aims to transfer water from this river to different councils of the northeast semiarid region with limited water ...
MARWELL, D., MELO, G., MORAIS, M., SOBRAL, M. do C., TORREÃO, T.   +4 more
core  

Herpetofauna of the Quaternary sand dunes of the Middle Rio São Francisco, Bahia, Brazil. VIII. Amphisbaena arda sp. nov., a fulliginosa-like checkered patterned Amphisbaena (Squamata: Amphisbaenidae). [PDF]

, 2002
Amphisbaena arda sp. nov. is described based on a specimen obtained at Mocambo do Vento, on the left bank of the São Francisco river, Bahia state, Brazil. A.
Miguel Trefaut Rodrigues
core   +2 more sources

A new species of Peckoltia (Siluriformes, Loricariidae) from the rapids of the Rio Tocantins‐Araguaia basin, Brazil

Journal of Fish Biology, EarlyView.
Abstract Here, we describe a new species of Peckoltia (Loricariidae; Hypostominae) from the rapids of the Rio Tocantins‐Araguaia basin, previously identified as Peckoltia vittata, using an integrative taxonomy approach. The new species is distinguished from congeners by ventral region presenting diffuse stripes on surface, not presenting spots or ...
Felipe Arian Andrade de Araújo, Marlon Felipe Chumber Ferreira, Aline Nascimento Silva, Wolmar Benjamin Wosiacki   +3 more
wiley   +1 more source