Results 11 to 20 of about 2,339 (217)

Genetic diversity and structuring in the arapaima (Osteoglossiformes, Osteoglossidae) population reveal differences between the Amazon and the Tocantins-Araguaia basins [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
Arapaima is a widely-distributed fish of enormous economic importance in the Amazon region. In the present study, a total of 232 specimens were sampled, 121 from five sites in the Amazon basin and 111 from five sites in the Tocantins-Araguaia basin.
Fabrícia Nogueira   +7 more
doaj   +1 more source

Molecular surveillance of the Plasmodium vivax multidrug resistance 1 gene in Peru between 2006 and 2015

open access: yesMalaria Journal, 2020
Background The high incidence of Plasmodium vivax infections associated with clinical severity and the emergence of chloroquine (CQ) resistance has posed a challenge to control efforts aimed at eliminating this disease.
Fredy E. Villena   +8 more
doaj   +1 more source

Isopods Cymothoidae ectoparasites of fish from the Amazon

open access: yesRevista Brasileira de Parasitologia Veterinária, 2020
Most freshwater species of Cymothoidae are distributed in South America. They have mainly been recorded in the eastern and western regions of the Amazon River basin.
Lucena Rocha Virgilio   +5 more
doaj   +1 more source

Spatial-temporal variation of dissolved inorganic material in the Amazon basin [PDF]

open access: yesActa Amazonica, 2015
The Amazon River basin is important in the contribution of dissolved material to oceans (4% worldwide). The aim of this work was to study the spatial and the temporal variability of dissolved inorganic materials in the main rivers of the Amazon basin ...
Liz Stefanny Hidalgo SÁNCHEZ   +4 more
doaj   +1 more source

Increased floodplain inundation in the Amazon since 1980

open access: yesEnvironmental Research Letters, 2023
Extensive floodplains throughout the Amazon basin support important ecosystem services and influence global water and carbon cycles. A recent change in the hydroclimatic regime of the region, with increased rainfall in the northern portions of the basin,
Ayan S Fleischmann   +16 more
doaj   +1 more source

Comparison Link Function from Summer Rainfall Network in Amazon Basin

open access: yesMeteorology, 2023
The Amazon Basin is the largest rainforest in the world, and studying the rainfall in this region is crucial for understanding the functioning of the entire rainforest ecosystem and its role in regulating the regional and global climate.
C. Arturo Sánchez P.   +3 more
doaj   +1 more source

Perspectives on the impact of microplastics (MPs) on fish of the Amazon that exhibit air-breathing and aquatic surface respiration [PDF]

open access: yesAnais da Academia Brasileira de Ciências
Fish in the Amazon basin have adapted to bouts of low water O2 and high CO2, with many species evolving air-breathing or aquatic surface respiration mechanisms to supplement respiratory gas exchange.
LAUREN ZINK   +2 more
doaj   +1 more source

Statistical prediction of terrestrial water storage changes in the Amazon Basin using tropical Pacific and North Atlantic sea surface temperature anomalies [PDF]

open access: yesHydrology and Earth System Sciences, 2014
Floods and droughts frequently affect the Amazon River basin, impacting transportation, agriculture, and ecosystem processes within several South American countries.
C. de Linage   +2 more
doaj   +1 more source

Trends in streamflow, evapotranspiration, and groundwater storage across the Amazon Basin linked to changing precipitation and land cover

open access: yesJournal of Hydrology: Regional Studies, 2020
Study region: The study region is the Amazon River Basin, which controls globally important water and energy fluxes. Study focus: In the face of a changing climate and landscape, it is critical that we understand how, where, and why surface water ...
Brent Porter Heerspink   +3 more
doaj   +1 more source

On the importance of cascading moisture recycling in South America [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Continental moisture recycling is a crucial process of the South American climate system. In particular, evapotranspiration from the Amazon basin contributes substantially to precipitation regionally as well as over other remote regions such as the La ...
D. C. Zemp   +7 more
doaj   +1 more source

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