Results 41 to 50 of about 5,257,106 (183)

A new old species of Tetracera (Dilleniaceae) from Espinhaço Range, Brazil

Nordic Journal of Botany, EarlyView.
Tetracera is the only genus within Dilleniaceae with a pantropical distribution. During efforts for a taxonomic revision of the neotropical species, we identified incongruences between application of names and their taxonomic identities, based on protologue and type specimen analysis. Here we describe a new species for the genus bearing a single carpel
Michelly D. F. Araújo, João V. L. Monzoli, Leandro L. Giacomin, Claudio N. Fraga   +3 more
wiley   +1 more source

Heavy metal distribution in recent sediments along the Tietê River basin (São Pauro, Brazil) [PDF]

, 2011
The distribution of heavy metals in recent sediments deposited along the Tietê River, a highly polluted river in southeast region of Brazil was studied.
Probst, Jean-Luc, Mortatti, Jefferson, Meneghel de Moraes, Graziela   +2 more
core  

Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands

Nordic Journal of Botany, EarlyView.
Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz, Bárbara Pinheiro Moreira, João Marcelo Alvarenga Braga, Leonardo Paz Deble   +3 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

POPULAR ENTREPRENEURSHIP: A Grammar of Moral Economy in Contemporary Urban Peripheries

International Journal of Urban and Regional Research, EarlyView.
Abstract This article examines how popular entrepreneurship operates as a cultural grammar that disrupts established practices of wageless life in urban peripheries. Drawing on four years of ethnographic research conducted in São Paulo, it analyses entrepreneurial discourses not simply as ideological impositions, but as ambivalent mediations of ...
Henrique Costa
wiley   +1 more source

São Francisco do Sul: o patrimônio que se estabelece e a paisagem que se constrói [PDF]

, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Urbanismo, História e Arquitetura da CidadeO presente estudo relaciona a paisagem e o patrimônio do Centro Histórico de São Francisco do Sul,
Pereira, Vanessa Maria
core  

BEYOND THE WATERS, THE NORTHEAST DISCUSSION OF SÃO FRANCISCO RIVER

, 2011
Este trabalho apresenta uma síntese da história do Projeto de transposição de águas do Rio São Francisco para as bacias do Nordeste Setentrional. Essas obras objetivam assegurar as reservas de água nos períodos secos, para os homens e para os animais ...
Lima, Luiz Cruz
core   +1 more source

São Francisco river Integration Project, Eastern Axis: losses analysis and performance indicators

RBRH, 2017
Water scarcity is an old problem in the brazilian Northeast semiarid region and limits the economic and social development of the region. To mitigate negative impacts of this situation, the National Integration Ministry elaborated the São Francisco River
Emmanuel Eduardo Vitorino de Farias, Wilson Fadlo Curi, Laudízio da Silva Diniz   +2 more
doaj   +1 more source

DNA barcoding uncovers two putative new species in Trachelyopterus (Siluriformes: Auchenipteridae)

Journal of Fish Biology, EarlyView.
Abstract Trachelyopterus is a cryptic genus within the Neotropical catfish family Auchenipteridae with a complex history of taxonomic revisions. Despite the notable morphological and genetic similarities among its species, some studies suggest that the genus harbours greater diversity than is currently recognized, including additional species yet to be
Fiorindo José Cerqueira, Maelin da Silva, Chrystian Aparecido Grillo Haerter, Sandra Mariotto, Liano Centofante, Eliana Feldberg, Orlando Moreira Filho, Vladimir Pavan Margarido, Daniel Rodrigues Blanco, Roberto Laridondo Lui   +9 more
wiley   +1 more source

A new sexually dimorphic species of the armoured catfish genus Neoplecostomus (Siluriformes: Loricariidae) from Neotropical Atlantic coastal drainages

Journal of Fish Biology, EarlyView.
Abstract A new species of the small‐sized armoured catfish genus Neoplecostomus is described from Neotropical Atlantic coastal drainages, in southeast Brazil. The new species can be readily diagnosed from all congeners by having the first plates of the ventral series reduced in size, rounded and ventrally displaced, resulting in a naked band between ...
Pedro L. C. Uzeda, Tiago C. Pessali, Axel M. Katz, Felipe P. Ottoni, Francisco Langeani, Priscilla C. Silva   +5 more
wiley   +1 more source