Bushmeat networks link the forest to urban areas in the trifrontier region between Brazil, Colombia, and Peru by Nathalie van Vliet, Maria Paula Quiceno, Daniel Cruz, Lindon Jonhson Neves de Aquino, Blanca Yagüe, Tatiana Schor, Sara Hernandez, Robert Nasi

“…The catchment area comprises the main rivers: up to Caballococha along the Amazon River, along the Atacuary River in Peru, along the Javari River between Peru and Brazil, and along the Loretoyacu and Amacayacu rivers in Colombia and in periurban forests. …”
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Reconstituição paleoambiental do Lago Santa Ninha, Várzea do Lago Grande de Curuai, Pará, Brasil Paleoenvironmental reconstruction of an Amazon floodplain lake, Lago Santa Ninha, V... by Luciane Silva Moreira, Patricia Florio Moreira-Turcq, Renato Campello Cordeiro, Bruno Jean Turcq

“…A core was collected at the Lago Grande de Curuai floodplain, in the Santa Ninha Lake, located on the right margin of the Amazon River at 850 km of the estuary. Water content, granulometry, radiocarbon dating, organic carbon, nitrogen content and δ13C were used to characterize the sedimentary processes. …”
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The invasion of five alien species in the Delta do Parnaíba Environmental Protection Area, Northeastern Brazil by Daniel Loebmann, Ana Cecília G Mai, James T Lee

“…Macrobrachium rosenbergii may be sharing natural resources with the Amazon River prawn Macrobrachium amazonicum. Omobranchus punctatus shares habit with the native redlip blenny Ophioblennius atlanticus and other fishes, such as the frillfin goby Bathigobius soporator. …”
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Spatiotemporal Dynamics of Suspended Sediments in the Negro River, Amazon Basin, from In Situ and Sentinel-2 Remote Sensing Data by Rogério Ribeiro Marinho, Tristan Harmel, Jean-Michel Martinez, Naziano Pantoja Filizola Junior

“…The in situ and satellite data analysed in this study indicates sedimentation processes in the lower Negro River near the Amazon River. The results suggest that the radiometric characteristics of sensors, like sentinel-2 MSI, are suitable for monitoring the suspended sediment concentration in large tropical black-water rivers.…”
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Cicatrização de lesões cutâneas de leishmaniose americana com dose única de pamoato de cicloguanil Cicatrization of lesions of cutaneous leishmaniasis with a single dose of ciclogu... by Hermelino Herbster Gusmão, José Antonio Gomes de Souza

“…<br>The treatment of Cutaneous Leishmaniasis with Cicloguanil Pamoate ("Comolar" Park-Davis), in Amapa Territory, North of the Amazon River, Brazil, is reported. Complete cicatrization of lesions was observed in 33 patients of which 28 received a single dose and 5 were treated with a second injection of the drug. …”
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Deforestation Detection in the Amazon Using DeepLabv3+ Semantic Segmentation Model Variants by Renan Bides de Andrade, Guilherme Lucio Abelha Mota, Gilson Alexandre Ostwald Pedro da Costa

“…It represents more than half of the remaining tropical forest on Earth and covers the catchment basin of the Amazon river on which 20% of the surface fresh water on the planet flows. …”
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Individual Variability in <i>Bothrops</i> <i>atrox</i> Snakes Collected from Different Habitats in the Brazilian Amazon: New Findings on Venom Composition and Functionality by Leijane F. Sousa, Matthew L. Holding, Tiago H. M. Del-Rei, Marisa M. T. Rocha, Rosa H. V. Mourão, Hipócrates M. Chalkidis, Benedito Prezoto, H. Lisle Gibbs, Ana M. Moura-da-Silva

“…Using statistical analyses and functional assays that incorporate individual variation, we analyzed the individual venom variability in <i>B. atrox</i> snakes from four different habitats (forest, pasture, degraded area, and floodplain) in and around the Amazon River in Brazil. We observed venom differentiation between spatially distinct <i>B. atrox</i> individuals from the different habitats, with venom variation due to both common (high abundance) and rare (low abundance) proteins. …”
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Toxoplasma Hypervirulence in the Rat Model Parallels Human Infection and Is Modulated by the Toxo1 Locus by Corinne Loeuillet, Anais Mondon, Salima Kamche, Véronique Curri, Jean Boutonnat, Jean Boutonnat, Pierre Cavaillès, Marie-France Cesbron-Delauw

“…However, in the wild biotopes especially in South America, Toxoplasma gondii strains display a greater genetic diversity, which correlates to higher virulence for humans, particularly along the Amazon River and its tributaries. In French Guiana, several atypical strains have been associated with severe clinical forms: ocular toxoplasmosis and acute respiratory distress syndrome both of which can result in death. …”
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Observações hidrológicas e resultados de modelagem no espalhamento sazonal e espacial da pluma de água Amazônica Hydrological observations and modeling results of the seasonal and... by Alex Costa da Silva, Maria de Lourdes Souza Santos, Moacyr Cunha Araujo, Bernard Bourlès

“…The emphasis of this paper is to point out the monthly changes on the spreading of the Amazon plume over the external Amazon shelf area and the eastern region of the Amazon River. Hydrographic data and model results demonstrated that during March-May, the Amazon plume moved southwestward along the northern coast of Brazil, decreasing during August-September; but this was not observed during October-November. …”
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Hydrologic benchmarking of meteorological drought indices at interannual to climate change timescales: a case study over the Amazon and Mississippi river basins by E. Joetzjer, H. Douville, C. Delire, P. Ciais, B. Decharme, S. Tyteca

“…The analysis is conducted over the Mississippi and Amazon river basins, which provide two contrasted test beds for evaluating drought indices at both interannual (using detrended data) and climate change (using raw data) timescales. …”
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Chemodiversity of dissolved organic matter in the Amazon Basin by M. Gonsior, J. Valle, P. Schmitt-Kopplin, N. Hertkorn, D. Bastviken, J. Luek, M. Harir, W. Bastos, A. Enrich-Prast

“…Waters from the Tapajós main stem did not show any substantial unique molecular signatures relative to those present in the Rio Madeira and Rio Negro, which implied a lower organic molecular complexity in this clear water tributary, even after mixing with the main stem of the Amazon River. Beside ubiquitous DOM at average H ∕ C and O ∕ C elemental ratios, a distinct and significant unique DOM pool prevailed in the black, white and clear water areas that were also highly correlated with EEM-PARAFAC components and define the frameworks for primary production and other aspects of aquatic life.…”
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Avaliação de padrão irregular dos escudos do casco em Podocnemis expansa e Podocnemis unifilis (Testudines, Podocnemididae) Evaluation of irregular pattern of the shell scutes in P... by Giovanni Salera-Junior, Adriana Malvasio, Thiago Costa Gonçalves Portelinha

“…<br>The shell of Podocnemis expansa (Amazonian giant River turtle) and Podocnemis unifilis (Yellow-spotted Amazon River Turtle), the largest South American turtles, is a unique structure that differentiates them from other known vertebrates; and it is associated with some of their behavioral patterns. …”
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The Role of the Rainfall Variability in the Decline of the Surface Suspended Sediment in the Upper Madeira Basin (2003–2017) by Irma Ayes Rivera, Jorge Molina-Carpio, Jhan Carlo Espinoza, Omar Gutierrez-Cori, Wilmar L. Cerón, Frédéric Frappart, Elisa Armijos Cardenas, Raúl Espinoza-Villar, José Max Ayala, Naziano Filizola

“…The Madeira River rises in the Andes, draining the southwestern Amazon basin and contributing up to 50% of the Amazon River sediment load. The Porto Velho station monitors the Upper Madeira basin and is located just downstream of the Jirau and Santo Antonio hydropower dams. …”
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Draft Genome of White-blotched River Stingray Provides Novel Clues for Niche Adaptation and Skeleton Formation by Jingqi Zhou, Ake Liu, Funan He, Yunbin Zhang, Libing Shen, Jun Yu, Xiang Zhang

“…The white-blotched river stingray (Potamotrygon leopoldi) is a cartilaginous fish native to the Xingu River, a tributary of the Amazon River system. As a rare freshwater-dwelling cartilaginous fish in the Potamotrygonidae family in which no member has the genome sequencing information available, P. leopoldi provides the evolutionary details in fish phylogeny, niche adaptation, and skeleton formation. …”
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Vectorial capacities for malaria in eastern Amazonian Brazil depend on village, vector species, season, and parasite species by Robert H. Zimmerman, Allan K. R. Galardo, L Philip Lounibos, Clicia Galardo, A. Kadir Bahar, Edzard van Santen

“…Abstract Background The vector species in the Amazon River Basin are regionally and locally diverse, which makes it imperative to understand and compare their roles in malaria transmission to help select appropriate methods of intervention and evaluation. …”
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New Insight Into the Reproductive Biology and Catch of Juveniles of the Lutjanus purpureus in a Portion of the Great Amazon Reef System Off the Northern Brazilian Coast by Julliany L. Freire, Gabriela C. Sarmento, Ítalo Lutz, Bianca Bentes, Victoria J. Isaac

“…The analysis of the gonadosomatic index (GSI) and the distribution of maturation stages indicated that the males and females are able to reproduce throughout the year, however the reproductive peak occurs simultaneously with the increase in the water discharge of the Amazon River. The spawning females were registered in the study area, indicating that L. purpureus does not perform long distance reproductive migrations, different from the previously proposed. …”
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The Hydrological Cycle of the Lower Amazon in Brazil Determines the Variation in Local Fishing Patterns by Maura da Silva Costa Furtado, Joaquim Carlos Barbosa Queiroz, Bianca Bentes, Edson Koiti Kudo Yasojima, Débora de Oliveira Thomaz, Larissa da Costa Pinheiro, Mauro Luis Ruffino, Victoria Isaac

“…Fishery catches on the Lower Amazon River were analyzed in relation to the hydrological cycle, temporal shifts in fishing effort, and the use of nets or lines in lakes and rivers. …”
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Wild dogs at stake: deforestation threatens the only Amazon endemic canid, the short-eared dog (Atelocynus microtis) by Rocha, DG, de Barros Ferraz, KMPM, Gonçalves, L, Tan, CKW, Lemos, FG, Ortiz, C, Peres, CA, Negrões, N, Antunes, AP, Rohe, F, Abrahams, M, Zapata-Rios, G, Teles, D, Oliveira, T, von Mühlen, EM, Venticinque, E, Gräbin, DM, Mosquera B., D, Blake, J, Lima, MGM, Sampaio, R, Percequillo, AR, Peters, F, Payán, E, Borges, LHM, Calouro, AM, Endo, W, Pitman, RL, Haugaasen, T, Silva, DA, de Melo, FR, de Moura, ALB, Costa, HCM, Lugarini, C, de Sousa, IG, Nienow, S, Santos, F, Mendes-Oliveiras, AN, Del Toro-Orozco, W, D'Amico, AR, Albernaz, AL, Ravetta, A, do Carmo, ECO, Ramalho, E, Valsecchi, J, Giordano, AJ, Wallace, R, Macdonald, DW, Sollmann, R

“…Species distribution models suggested that the short-eared dog potentially occurs over an extensive and continuous area, through most of the Amazon region south of the Amazon River. However, approximately 30% of the short-eared dog's current distribution is expected to be lost or suffer sharp declines in habitat suitability by 2027 (within three generations) due to forest loss. …”

Comprehensive bathymetry and intertidal topography of the Amazon estuary by A. C. Fassoni-Andrade, A. C. Fassoni-Andrade, F. Durand, F. Durand, D. Moreira, A. Azevedo, V. F. dos Santos, C. Funi, A. Laraque

“…Here, we present the first comprehensive, high-resolution dataset of the topography and bathymetry of the Amazon River estuary, the world's largest estuary. Our product is based on an innovative approach combining spaceborne remote sensing data, an extensive and processed river depth dataset, and auxiliary data. …”
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Comparative Cytogenetics Analysis Among Peckoltia Species (Siluriformes, Loricariidae): Insights on Karyotype Evolution and Biogeography in the Amazon Region by Kevin Santos da Silva, Augusto Cesar Paes de Souza, Ananda Marques Pety, Renata Coelho Rodrigues Noronha, Marcelo Ricardo Vicari, Julio Cesar Pieczarka, Cleusa Yoshiko Nagamachi

“…A comparative analysis with other Peckoltia karyotypes described in the literature, their biogeography patterns, and molecular phylogeny led to the hypothesis that the derived karyotype was raised in the left bank of the Amazon River.…”
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