Hierarchical effects of historical and environmental factors on lizard assemblages in the upper Madeira River, Brazilian Amazonia. [PDF]
Investigating the role of historical and ecological factors structuring assemblages is relevant to understand mechanisms and processes affecting biodiversity across heterogeneous habitats.
Gabriela Marques Peixoto +4 more
doaj +2 more sources
Damming Amazon Rivers: Environmental impacts of hydroelectric dams on Brazil's Madeira River according to local fishers' perception. [PDF]
This study aimed to investigate the environmental impacts generated by the hydroelectric complex in the Madeira River, Brazilian Amazon, based on the perceptions of local fishers and fishery database, it focus attention on three main impacts: (i) on local fishery stocks; (ii) in fish fauna and (iii) on the aquatic ecosystems.
Santos RE +4 more
europepmc +4 more sources
A new nurse frog of the Allobates tapajos species complex (Anura: Aromobatidae) from the upper Madeira River, Brazilian Amazonia [PDF]
Cryptic diversity is extremely common in widespread Amazonian anurans, but especially in nurse frogs of the genus Allobates. There is an urgent need to formally describe the many distinct but unnamed species, both to enable studies of their basic biology
Miquéias Ferrão +2 more
doaj +3 more sources
Crop domestication in the upper Madeira River basin [PDF]
Most native Amazonian crops were domesticated in the periphery of the basin. The upper Madeira River basin is an important part of this periphery where several important crops were domesticated and others are suspected to have been domesticated or ...
Charles Roland Clement +7 more
doaj +4 more sources
MERCURY CONCENTRATION IN MARGIN SOIL OF THE MADEIRA RIVER [PDF]
The extraction of gold in the Amazon, since 1970, has grown fast from a politic that was resulted in the creation of gold extraction reserves in this region.
Déborah Pereira Linhares +6 more
doaj +3 more sources
Chemodiversity of dissolved organic matter in the Amazon Basin [PDF]
Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detailed chemical classification of the abundant and ubiquitous dissolved organic matter (DOM), beyond specific indicator compounds and bulk measurements, has ...
M. Gonsior +8 more
doaj +4 more sources
A 35-Year Record (1987–2022) of Hg Concentrations in Two of the Fish Species Most Consumed by People Living in the Upper Madeira River Basin, Brazilian Amazon Region [PDF]
This study presents a 35-year record of total mercury (Hg) concentrations in the detritivore fish Prochilodus nigricans (Curimatã) and the carnivore Cichla pleiozona (Tucunaré), two of the most widely distributed, ecologically important and consumed fish
Luiz Drude de Lacerda +2 more
doaj +2 more sources
The commercial fishing fleet using the middle stretch of the Madeira river, Brazil - doi: 10.4025/actascibiolsci.v34i3.8119 [PDF]
Fishery resources in the Amazon region are exploited by both industrial and artisanal fishing fleets, that differ in their use of fishing gear and fishing grounds.
Renato Soares Cardoso +1 more
doaj +2 more sources
Produção de Madeira de Progênies de Segunda Geração de Grevílea na Região de Avaré, SP [PDF]
A grevílea (Grevillea robusta A. Cunn) é uma espécie utilizada para o sombreamento de cafezais e de outras culturas agrícolas, áreas de pastagens e apicultura, paisagismo e como cortina quebra- ventos.
Emerson Gonçalves Martins +3 more
doaj +1 more source
Viewpoint – Brazil’s Madeira River Dams: A Setback for Environmental Policy in Amazonian Development
Decisions on hydroelectric dam construction will be critical in shaping the future of Amazonia, where planned dams would convert most tributaries into chains of reservoirs.
Philip Martin Fearnside
doaj +1 more source

