Results 61 to 70 of about 604,113 (275)

INVENTÁRIO DE ÁREAS ÚMIDAS DA BACIA HIDROGRÁFICA DO RIO SANTA MARIA, NA MICRORREGIÃO DO VÃO DO PARANÃ: “O PANTANAL” DE GOIÁS

open access: yesBoletim Goiano de Geografia
As áreas úmidas são ecossistemas na interface entre ambientes terrestres e aquáticos e, no Cerrado, elas compreendem um mosaico de vegetações hidrófilas, savanas alagáveis e manchas de florestas alagáveis e secas. Em Goiás, verifica-se que as maiores concentrações de áreas naturais do bioma, estão presentes no norte e nordeste do estado, sobretudo na ...
Ana Elisa de Lima Oliveira   +1 more
openaire   +1 more source

Estudios bioarqueológicos en el sitio Los Tres Cerros 1 (Delta Superior del río Paraná, Entre Ríos, Argentina)

open access: yes, 2015
In this paper we present the results from bioarchaeological studies of human skeletal remains recovered at Los Tres Cerros 1 site (Victoria department, Entre Rios, Argentina), an anthropogenic mound occupied between 1227 and 560 years BP by hunter ...
Clara Scabuzzo   +3 more
semanticscholar   +1 more source

Electrospun encapsulation of grape pomace extract: in vitro antioxidant, anti‐inflammatory, and antihyperglycemic properties

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND The escalating prevalence of lifestyle‐ and aged‐related conditions, including diabetes, chronic inflammation, and cardiovascular disorders, underscores the urgent need for natural therapies. Such alternatives should offer reduced side effects compared to conventional pharmaceuticals while playing a proactive role in disease ...
Estefani Tavares Jansen   +6 more
wiley   +1 more source

El río Paraná: de pulmón comercial a fábrica de energía (1870-1990)

open access: yesHistoria Ambiental Latinoamericana y Caribeña, 2016
Este artículo examina las transformaciones experimentadas por el Río Paraná en la región del Alto Paraná fronterizo entre Brasil y Paraguay entre 1870 y 1990.
Carlos Gómez Florentin
doaj   +2 more sources

A new species of the catfish genus Centromochlus (Siluriformes: Auchenipteridae: Centromochlinae) from the upper rio Paraná basin, Brazil

open access: yes, 2015
Centromochlus comprises twelve species, distributed in the main inland watersheds of South America, including the Orinoco, Essequibo, coastal rivers of Suriname, Amazon, upper Parana and Sao Francisco basins.
L. M. Sarmento-Soares, J. Birindelli
semanticscholar   +1 more source

Moderate Fire Temperatures Affect the Structure of Clayey Oxisol Aggregates

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Wildfires have become increasingly frequent and intense worldwide, raising concerns about their impacts on soil systems. However, the thermal responses of clay‐rich Oxisols, dominated by Fe and Al oxides, remain poorly understood. In this study, samples from the 0 to 5 cm layer of six Oxisols were subjected to controlled heating at ...
Yasmmin Tadeu Costa   +5 more
wiley   +1 more source

Chromosomal analyses in Megalonema platanum (Siluriformes: Pimelodidae), an endangered species from South American rivers

open access: yesNeotropical Ichthyology, 2011
This study presents chromosomal data of Megalonema platanum from rio Tibagi, Paraná, Brazil and from rio Paraná, Argentina. The diploid number was equal 54 with karyotype composition of 24m+16sm+2st+12a in both populations.
Rafael Augusto de Carvalho   +5 more
doaj  

Polimorfismo molecular em Lonchocarpus cultratus (Fabaceae) de áreas ripárias de reflorestamento natural no alto rio Paraná, Brasil - DOI: 10.4025/actascibiolsci.v26i3.1596

open access: yesActa Scientiarum: Biological Sciences, 2008
No Sul e Sudeste do Brasil, Lonchocarpus cultratus (Vell.) A.M.G. Azevedo e H.C. Lima é uma espécie arbórea importante para o reflorestamento natural, incluindo áreas ripárias.
Renata de Souza Panarari   +7 more
doaj   +1 more source

Genetic structuring of Salminus hilarii Valenciennes, 1850 (Teleostei: Characiformes) in the rio Paraná basin as revealed by microsatellite and mitochondrial DNA markers

open access: yes, 2015
Genetic variation of Salminus hilarii was assessed by screening microsatellite loci and mitochondrial D-loop DNA across four sampling in the upper rio Parana basin of Brazil.
J. V. Silva   +3 more
semanticscholar   +1 more source

Taxonomy and diversity of Marcgraviaceae, north of the São Francisco river, northeast Brazil

open access: yesNordic Journal of Botany, EarlyView.
This study provides a comprehensive assessment of Marcgraviaceae species diversity north of the São Francisco river in northeastern Brazil, analyzing species richness and distribution patterns across 384 000 km² of phytogeographic domains. Through field collections, herbarium studies (both physical and digital), and detailed morphological analyses, we ...
Thales Carvalho   +4 more
wiley   +1 more source

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