Results 71 to 80 of about 2,339 (217)

Molecular diagnosis of the arowanas Osteoglossum ferreirai Kanazawa, 1966 and O. bicirrhossum (Cuvier, 1829) from the Orinoco and Amazon River basins

Neotropical Ichthyology
The arowanas, fishes of Gondwanan origin, are represented in South America by the genus Osteoglossum. All species were initially reported as being exclusive to the Amazon region, with O. ferreirai restricted to the Negro River basin and O. bicirrhosum to
Maria Doris Escobar L., Izeni P. Farias, Donald C. Taphorn B., Miguel Landines, Tomas Hrbek   +4 more
doaj   +1 more source

Hidden diversity in Prochilodus nigricans: A new genetic lineage within the Tapajós River basin.

PLoS ONE, 2020
Highly spread through the Amazon River basin, Prochilodus nigricans have had its taxonomic validity recently questioned, when genetic differences between Western and Eastern Amazon populations from the Brazilian shield were detected.
Ueslei Lopes, Pedro M Galetti, Patricia Domingues de Freitas   +2 more
doaj   +1 more source

Analysis of flood events in the Three Gorges Reservoir Region using the coupled VIC‐CaMaFlood hydrological model

River, EarlyView.
Abstract In recent years, the Three Gorges Reservoir Region (TGRR) has been increasingly affected by climate change, with frequent flood events posing challenges to regional flood control. The NO.1 flood of the Daning River in 2024 further highlights the severity of flood risks in the region.
Wenlong Song, Tianshi Feng, Qiang Zhang, Yixin Sun, Yizhu Lu, Xingdong Li, Hongjie Liu, Rongjie Gui, Long Chen   +8 more
wiley   +1 more source

Modification of the Madeira River morphology following large hydropower projects detected by satellite data

River, EarlyView.
Abstract Estimating suspended sediment concentration (SSC) in river channels is essential for understanding hydro‐sedimentological processes, managing water quality, and conserving aquatic ecosystems. This study evaluated different empirical equations to estimate SSC in the lower Madeira River and analyzed its hydro‐sedimentary dynamics based on MODIS ...
Matheus Silveira de Queiroz, Rogério Ribeiro Marinho, Paulo Rodrigo Zanin, Andre Luis Martinelli Real dos Santos, Jean‐Michel Martinez, Naziano Pantoja Filizola Junior   +5 more
wiley   +1 more source

Illegal Gold Mining in the Brazilian Amazon: Environmental Degradation in Yanomami Indigenous Lands, and Regulatory Failures

Sustainable Development, EarlyView.
ABSTRACT Illegal gold mining has emerged as a major sustainability threat in the Amazon, eroding Indigenous rights, forest integrity, and climate mitigation efforts. This study examines how international market incentives relate to the expansion of illegal mining and associated deforestation within the Yanomami Indigenous Territory (YIT) from 2008 to ...
Shirléia Lago Santos, Ana Claudia de Araujo Moxotó, Jurandir Moura Dutra   +2 more
wiley   +1 more source

Revisiting the Load Capacity Curve for Sustainable Development: The Roles of Plastic Waste Trade, Digital Trade, and BioTrade in OECD Countries

Sustainable Development, EarlyView.
ABSTRACT This study examines the validity of the Load Capacity Curve (LCC) hypothesis and assesses the environmental implications of emerging trade structures, focusing on BioTrade, digital trade, and plastic waste trade. Using a balanced panel of 36 OECD countries from 2011 to 2023, the analysis investigates how income dynamics and trade composition ...
Ugur Korkut Pata, Mustafa Naimoglu, Selin Karlilar Pata   +2 more
wiley   +1 more source

Fertilizer Sustainability: A Conceptual Framework for Assessing Equitable and Sustainable Soil Inputs

Sustainable Development, EarlyView.
ABSTRACT Modern industrial agriculture is predicated largely on the production and utilization of chemical fertilizers. Although this approach has played an integral role in increasing food security in many parts of the world, the long‐term sustainability of this resource‐intensive approach is questionable.
Benjamin Wilde, Roman Hüppi, Gina Garland, Rafaela Feola Konz, Kenza Benabderrazik, William Thompson, Martin Hartmann, Bernard Vanlauwe, Kokou Kintche, Leonhard Späth, Matieyedou Konlambigue, Johanna Jacobi, Johan Six   +12 more
wiley   +1 more source

Oxidative Stress Biomarkers in the Shrimp Macrobrachium amazonicum (Heller, 1862): Assessment in an Environmental Preservation Area in the Brazilian Amazon

Environmental Toxicology, EarlyView.
ABSTRACT Anthropogenic activities generate a significant amount of pollutants that are released into the environment, causing physiological and ecological disturbances. Among the xenobiotics present in aquatic ecosystems, numerous chemical and organic compounds have oxidative potential or are metabolized through oxidative processes, which may amplify ...
Natália Eduarda da Silva, Arllon José dos Santos Dias, Layane Vitoria dos Santos e Santos, Natalie de Matos Araujo, Darlan Coutinho dos Santos, Jefferson Romáryo Duarte da Luz, Gabriel Araujo‐Silva   +6 more
wiley   +1 more source

Pitcairnia L’Hér (Bromeliaceae-Pitcairnioideae) diversity and distribution in the Brazilian Amazon [PDF]

Biodiversity Data Journal
The Amazon Rainforest, a paramount source of global biological diversity, faces challenges due to its understudied species richness, an insufficient investment in research and escalating rates of deforestation. Thus, acquiring additional data, especially
Brenda Carvalho, Deisy Saraiva, Thuane Bochorny, Rafaela Forzza   +3 more
doaj   +3 more sources

Ecotoxicological Assessment of Mercury in Fish From a Gold‐Mining‐Impacted Amazonian River: Biomonitoring and Human Health Risk

Environmental Toxicology, EarlyView.
ABSTRACT The Peixoto de Azevedo River, located in northern Mato Grosso, southern Brazilian Amazon, has a long history of artisanal and small‐scale gold mining (ASGM). This study evaluated total mercury (THg) concentrations in fish tissues to assess biomagnification and potential risks.
Augusto Cesar da Costa Castilho, Kleber Solera, Vinícius José Santos Lopes, Gleyce Alves Machado, Ricardo Lopes Tortorela de Andrade, Leandro Dênis Battirola   +5 more
wiley   +1 more source