The diversity and distribution of Heliconia (Heliconiaceae) in Brazil A diversidade e distribuição de Heliconia (Heliconiaceae) by John Kress

“…Two primary areas of distribution of species of Heliconia exist in Brazil: the Amazon basin (21 species) and the Atlantic coastal forest (20 species).…”
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On the female of Metagonia taruma (Araneae: Pholcidae), ecology of the pholcid spiders in the Urucu River Basin, Amazonas, Brazil and new records from Brazilian Amazonia by Leonardo S. Carvalho, Sidclay C. Dias, David F. Candiani, Alexandre B. Bonaldo

“…We also present new records, throughout the Amazon Basin, for the Pholcidae species collected at Porto Urucu.…”
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A historical perspective on malaria control in Brazil by Sean Michael Griffing, Pedro Luiz Tauil, Venkatachalam Udhayakumar, Luciana Silva-Flannery

“…Multiple regional and national malaria control efforts have been attempted with varying success. At present, the Amazon Basin accounts for 99% of Brazil’s reported malaria cases with regional increases in incidence often associated with large scale public works or migration. …”
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Distribution patterns of Neotropical primates (Platyrrhini) based on Parsimony Analysis of Endemicity by A. Goldani, G. S. Carvalho, J. C. Bicca-Marques

“…One area includes Central America and the extreme Northwest of South America, other the Amazon basin, and another the Atlantic Forest, Caatinga, Cerrado and Chaco.…”
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Description of the reproductive behavior of Symphysodon aequifasciatus (Cichlidae) in captivity by Douglas da Cruz MATTOS, Rafaela SCRENCI-RIBEIRO, Leonardo Demier CARDOSO, Manuel Vazquez Vidal JUNIOR

“…It is a neotropical cichlid from South America, which is native to the rivers of the Amazon basin of Brazil, Peru and Colombia. The purpose of this study was to characterize the reproductive behavior of S. aequifasciatus and identify features that can later be used by breeders to facilitate the handling and reproduction of this species in captivity. …”
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Spider species richness and sampling effort at Cracraft´S Belém Area of Endemism by BRUNO V.B. RODRIGUES, MANOEL B. AGUIAR-NETO, UBIRAJARA DE OLIVEIRA, ADALBERTO J. SANTOS, ANTONIO D. BRESCOVIT, MARLÚCIA B. MARTÍNS, ALEXANDRE B. BONALDO

“…ABSTRACT A list of spider species is presented for the Belém Area of Endemism, the most threatened region in the Amazon Basin, comprising portions of eastern State of Pará and western State of Maranhão, Brazil. …”
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Economic Surges and Growth of Manaus by Bertha Koiffmann Becker

“…Despite the lack of dynamism in previous centuries before these two surges Manaus had another important function, that of guaranteeing Portuguese possession of the vast Amazon basin which occupies the majority of the interior territories of South America.…”
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Evidence of horizontal gen transfer of antibiotic resistance genes from environmental bacteria by Patricio A. Valencia C., Verónica Barragán, Gabriel A. Trueba P.

“…Water and soil samples were collected from pristine zones of the Ecuadorian Amazon Basin (Sucumbios, Napo and Orellana provin­ces), and they were inoculated in a modify wheat grain medium (WGM). …”
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Presença do Plasmodium brasilianum em macacos capturados na área de enchimento do reservatório da usina hidrelétrica de Tucuruí, Pará Presence of Plasmodium brasilianum in monkeys... by Mércia Eliane de Arruda

“…This project aimed to rescuing the animals that lived within the forest that began to be flooded by the Tucurui dam built in the Tocantins river, Amazon basin, Brazil. Malaria parasites similar or identical to Plasmodium brasilianum were found in seven species or subspecies: Alouatta belzebul belzebul, A. belzebul nigerrima, A. seniculus, Chiropotes satanas, Saimiri sciureaus, Callicebus moloch and Saguinus midas niger. …”
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New data on amylolytic fermentation in the Amazon by Alessandro Barghini

“…The significant number of biochemical analyses available for these two products also broadened our understanding of the Amazon basin’s fermentation processes. It partly extended the results to other processes described by missionaries and chroniclers, in general, neglected by anthropologists. …”
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Sixteen years of MOPITT satellite data strongly constrain Amazon CO fire emissions by S. Naus, S. Naus, L. G. Domingues, L. G. Domingues, M. Krol, M. Krol, I. T. Luijkx, L. V. Gatti, L. V. Gatti, J. B. Miller, E. Gloor, S. Basu, S. Basu, C. Correia, C. Correia, G. Koren, H. M. Worden, J. Flemming, G. Pétron, G. Pétron, W. Peters, W. Peters

“…Extension of such a perspective to an operational framework is timely considering the observed increased fire intensity in the Amazon Basin between 2019 and 2021.</p>…”
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Intrapopulational genetic differentiation in Anopheles (N.) darlingi Root, 1926 (Diptera: Culicidae) in the amazon region by Joselita Maria Mendes dos Santos, Jorge Arturo Lobo, Wanderli Pedro Tadei, Eucleia P. Betioli Contel

“…Chromosomal variation of Amazon population also did not indicate geographical differentiation, and populations in the central region of the Amazon Basin showed high polymorphism in relation to the marginal populations, which were mainly monomorphic.…”
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Revision of the Neotropical trahiras of the Hoplias lacerdae species-group (Ostariophysi: Characiformes: Erythrinidae) with descriptions of two new species by Osvaldo T. Oyakawa, George M. T. Mattox

“…A taxonomic revision of the group based on meristic and morphometric data identified five distinct species: H. lacerdae distributed in the rio Ribeira de Iguape and rio Uruguai; H. intermedius from the rio São Francisco, upper rio Paraná basin, and rio Doce; H. brasiliensis from rivers of the Atlantic Coastal drainage from the rio Paraguaçu to the rio Jequitinhonha; H. australis new species, endemic to the rio Uruguai; and H. curupira new species present in northern South America, including the rios Negro, Trombetas, Tapajós, Xingu, Tocantins and Capim in the Amazon basin, upper rio Orinoco near the rio Casiquiare (Venezuela), and coastal rivers of Guyana and Suriname. …”
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The Effect of Herbicides Used in the Control of Water Hyacinth; Glyphosate, Glufosinate-Ammonium and Bispyribac Sodium on Diversity and Abundance of Planktonic Communities by A. Mirzajani, S. Bagheri, J. Sabkara, M. Makaremi, S. Khatib, N. Nezamabadi, A. mirzajani, A. mirzajani, F. Madadi

“…Water hyacinth (Eichhornia crassipes) is native to the Amazon basin and is one of the worst aquatic weeds in the world. …”
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The Amazonian Formative: Crop Domestication and Anthropogenic Soils by Manuel Arroyo-Kalin

“…This assessment identifies anthropogenic soil formation as a hallmark of the Amazonian Formative and prompts questions about when similar forms of enrichment first appear in the Amazon basin. The paper reviews evidence for embryonic anthrosol formation to highlight its significance for understanding the domestication of a key Amazonian crop: manioc (Manihot esculenta ssp. esculenta). …”
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Mapeamento e Análise Temporal da Paisagem no Entorno do Reservatório de Tucuruí-PA by Andrés Danilo Velástegui Montoya, Aline Maria Meiguins de Lima, Marcos Adami

“…The great interest of generating “clean” energy in the countries of the region for energy supply and continuous economic growth, motivates the planning and construction of large hydroelectric projects, with a significant presence in the Amazon basin. Nevertheless, due to the extent of the reservoirs generated by these projects, the dynamics of natural ecosystems may be altered. …”
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Microplastic occurrence in fish species from the Iquitos region in Peru, western Amazonia by Rommel R. ROJAS, Carlos ARANGO-MORA, Christian NOLORBE-PAYAHUA, Mishelly MEDINA, Melly VASQUEZ, Josias FLORES, Fiorela MURAYARI, Claudia VÁSQUEZ, Valeri de ALMEIDA, Wilfredo RAMOS, Enrique RIOS ISERN, Jorge MARAPARA DEL AGUILA, Juan C. CASTRO, Javier DEL ÁGUILA, Felicia DIAZ JARAMA, Maria VASCONCELOS-SOUZA

“…The presence of microplastic is documented in the aquatic fauna of the oceans, but, in the Amazon basin, reports on microplastic occurrence are few. …”
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A new challenge for malaria control in Brazil: asymptomatic Plasmodium infection - a review by José Rodrigues Coura, Martha Suárez-Mutis, Simone Ladeia-Andrade

“…Likewise, other researchers have studied the problem among indigenous communities in the Colombian, Peruvian, and Venezuelan parts of the Amazon basin, adjacent to Brazil. The frequency of positive results from the polymerase chain reaction (PCR) among asymptomatic individuals has ranged from 20.4 to 49.5%, and the presence of Plasmodium in the thick blood smears, from 4.2 to 38.5%. …”
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Variable backwater and channel roughness: effects on Solimões River discharge by Alves, Luna Gripp Simões, da Silva, Demetrius David, Vauchel, Philippe, Fraizy, Pascal, Filizola, Naziano Pantoja

“…Historically, streamflow daily values are obtained indirectly by applying a rating curve on water level data. In several Amazon basin stations, a backwater effect impacts the flow, thereby invalidating the rating curve method. …”
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Dehydration alters behavioral thermoregulation and the geography of climatic vulnerability in two Amazonian lizards. by Agustín Camacho, Tuliana O Brunes, Miguel Trefaut Rodrigues

“…The two modeling approaches showed that dehydration may alter the expected intensity, extent, and duration of perceived thermal risk across the Amazon basin for these forest lizards. Based on our results and previous studies, we identify new evidence needed to better understand thermohydroregulation and to model the geography of climatic risk using the VTmax.…”
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