Amazon Rainforest Region Research Articles

Review Book Of “Sacha Inchi : a Rich Nutrient Superfood from Amazon.” by Tresno Saras, Tiram Media Publisher, 2023

This book will discuss the history and culture of using sacha inchi, how to process sacha inchi into healthy food and drink products, and the potential for developing sacha inchi as a raw material for cosmetics and pharmaceuticals. Sacha Inchi, otherwise known as Inca beans or Inca Peanut, is a plant native to South America that grows well in the Amazon Region. Recently, Sacha Inchi has become increasingly popular as a nutrient-rich superfood. In the first chapter In the characteristics of the sacha inchi plant. The author explains that Sacha Inchi (Plukenetia volubilis L.) is a plant native to South America, mainly found in the Amazon rainforest region. This plant is known as a superfood plant because of its high nutritional content.

Questioning and Listening: An Attempt to Investigate Voinha’s Migration Journey

In this essay I analyze how the artifacts of questioning and listening became resourceful in the procedure of excavating the personal and political reasons behind the migration journey my maternal grandmother Voinha (who turned 100 years old on April 08th 2021 and passed away on March 06th 2022) embarked on in 1945 from Ananindeua and Belém (Amazon rainforest region) to Rio de Janeiro (BR); and further, my own immigration journey from Latin America to the Middle East and on to northern Europe, fifteen years ago. How coupling questioning with listening allowed an oppressed woman to speak for herself, fostering in this way dramaturgies that brought awareness to feminist empowerment as a means to tackle the colonial and patriarchal ways in which the Brazilian national identity, among many others, is constructed. The writing style is mainly anecdotal and based on conversations I had with Voinha on different occasions. The recordings of our last in-person encounter on September 15th 2018 became the foundation for the performance Feliz Aniversário, created primarily as a way of giving Voinha agency in telling her own migration journey. Excerpts of this audio and video footage will be further analyzed alongside this essay. The methodology adopted is autoethnography with the intention to offer nuanced, complex, and specific knowledge about particular lives, experiences and relationships (Adams, Jones, Ellis 2014). Within autoethnographical methodological tools, I delve on reflexivity with the aim of troubling the relationship between researchers ‘selves’ and ‘others’ and offering a re-examination of the paradigm modernity/coloniality as simultaneously shaped through specific articulations of race, gender and sexuality (Lugones 2007). The final intention is to analyze how turning back to my ancestors’ and my own experiences, identities, and their socio-political implications; how analyzing them according to gender and queer theories and from a decolonial perspective, could potentialize my current practice focused on autobiographical performance. One last important point to be acknowledged is my role as an artist-researcher examining the complex ethical and creative processes of working with intimate family memories, observing the growing necessity of developing dramaturgies of care and resistance (Malzacher 2008).

The resilience of the aquatic Isoëtes cangae to terrestrial environment: Insights into molecular and ecophysiological adaptations

The Isoëtes genus comprises a basal lineage of vascular plants with a wide distribution, including aquatic and terrestrial species, which can be attributed to environmental changes throughout its evolutionary history. The underwater quillwort, Isöetes cangae, is endemic to Lake Amendoim in the northern Amazon rainforest region of Brazil. To aid conservation strategies, we investigated the molecular and physiological changes associated with water column reduction and tolerance to terrestrial environments. Remarkably, this aquatic species has demonstrated a tolerance for periods without a water column during ex situ cultivation. Short-term experimental conditions (24 h) revealed upregulation of stress-related genes, while biochemical, morphological, and physiological parameters remained unchanged. In contrast, long-term terrestrial conditions (3–6 months) induced changes in the physiology and morphology of I. cangae, including an increase in antioxidant capacity, photoprotective mechanisms, and the preservation of reproductive structures. The Crassulacean Acid Metabolism was present in both aquatic and terrestrial conditions. Mature and immature spores were able to produce plants even after 12 months of desiccation, with desiccated spores generating more progeny than submerged spores.

New connections between brand and environmentally sustainable businesses in the Amazon forest and local business owner’s perception

The debate surrounding entrepreneurship in the Amazon rainforest region highlights the importance of sustainable actions developed by local brands. However, limited attention has been given to entrepreneur's perspectives regarding the outcome of their applied practices. The objective of this study was to understand the entrepreneurs’ perception based on their business models concerning the connection to the Amazon brand and the aspects of sustainable use of its natural resources. The study was performed through semi-structured interviews with seven Amazonian product brands entrepreneurs utilizing Grounded Theory. The results demonstrate that entrepreneurs understand that reaching the social dimension relies on the articulation of three main factors: entrepreneurs, the native people, and the shared traditional knowledge and culture. It is observed that the political dimension is still underdeveloped in the region with limited application of its effects on products. Additionally, the economic dimension is not significantly favored by the utilization of environmentally sustainable brands. Lastly, the territorial dimension depends on the establishment of permanent protection areas, as well as agroforestry systems.

Malarial and intestinal parasitic co-infections in indigenous populations of the Brazilian Amazon rainforest

The Brazilian Amazon rainforest region has a significant prevalence of malarial and intestinal parasitic infections in indigenous populations, accounting for a disproportionate burden. Thus, a cross-sectional study was conducted to assess the prevalence and association between malarial and intestinal protozoan and helminth infections in four remote indigenous villages in the Brazilian Amazon Forest. A total of 430 individuals participated in the study, and Plasmodium infections were diagnosed by examination of thick blood smears and PCR. Stool samples 295 individuals (69%) were examined by direct smear and the Kato–Katz technique. The overall prevalence of malaria, intestinal protozoan infection, and intestinal helminth infection was 14.2%, 100%, and 39.3%, respectively. Polyparasitism was predominant (83.7%), and most infected individuals had at least two or more different species of intestinal protozoan and/or helminth parasites. The prevalence of co-infection was 49.5%, and in individuals with intestinal protozoa and helminth infections (34%), Entamoeba. coli, Entamoeba histolytica, and Ascaris lumbricoides were the most common parasites. In individuals with malaria and protozoa infections (10.2%), P. vivax, E. coli, and E. histolytica predominated, and in individuals with malaria, protozoa, and helminth infections (5.4%). P. vivax, E. coli, E. histolytica, and A. lumbricoides predominated. Intestinal polyparasitism was common in the study population, and the presence of helminths was associated with an increased number of intestinal parasitic species. However, Plasmodium infections were neither a risk nor a protective factor for helminth infections; the same was true for helminth infections in relation to Plasmodium. The high prevalence of intestinal polyparasitism with Plasmodium co-infections highlights the need for combining strategies that may help control both malaria and intestinal parasite and generate a health approach aligned with indigenous perspectives.

Seasonality, soil attributes and root biomass in cerrado, cerradão and forest environments, western Amazon

The Amazon rainforest region presents a phytophysiognomy that ranges from savannas to cerrados, all of them intimately associated to climate and soil characteristics. Evidence has been given that plant growth and development are affected by soil quality and seasonality, thus making it crucial to understand them and how they are related to each other in order to grasp the dynamics of the whole ecosystem. In this context, the goal of this research was to assess how seasonality, soil attributes, and root system biomass are related in natural cerrado, cerradão, and forest areas in southern Amazonas State, in Brazil. Soil samples were collected during dry (June/2018) and rainy (December/2018) seasons from three different layers 0.00–0.05m; 0.05–0.15m, and 0.15–0.30m deep. In each area ten sampling points were randomly chosen. Two kinds of soil samples were collected: the first using 4.0 cm height by 5.1cm internal-diameter soil sample rings; and the second were intact soil lumps. Physical and Chemical soil attributes assessed were macro-porosity (MaP), micro-porosity (MiP), total porosity (TP), soil density (SD), aggregates texture and stability (GMD and WAR), gravimetric humidity (HG), organic carbon (OC), exchangeable aluminum (Al3+), potential acidity (H+Al), sum of bases (SB), cation exchange capacity (CEC), and root biomass (RB). All data were analysed via Tukey t test and student T test to compare results between seasons and areas. Increasing vegetation density (cerrado < cerradão < forest) was followed by an increment in CEC and OC, showing the importance of these attributes to maintaining biodiversity in environments. In amazon cerrado, rainy season as well a sandier soil textures provided favourable conditions to the growth and development of plants’ root system. Soil attributes were little affected by seasonality, that had greater effect on MiP, TP, SD, and OC, leading to lesser values for these variables during rainy season.

Analysis of Artisanal and Small-Scale Gold Mining in Peru under Climate Impacts Using System Dynamics Modeling

In this paper, we propose a system dynamics (SD) model to examine the dynamics of an informal artisanal and small-scale gold mining (ASGM) supply chain that has interactions with the illegal gold supply chain in the Amazon rainforest region, Madre de Dios (MdD), Peru. In order to examine the system under climate impacts and validate the model, we run it under a flood scenario, which is one of the main climate impacts that causes disruption in mining activities. Our findings suggest that the dynamics of informal mines are highly affected by the illegal mercury supply, fuel supply, and availability of workers. In addition, the model under the flood scenario suggests that any external variable that could directly affect fuel and mercury supply would result in a disruption of informal and illegal gold production.

Multidrug-resistant Klebsiella pneumoniae: a retrospective study in Manaus, Brazil.

Klebsiella pneumoniae is an opportunistic pathogen that can cause several infections, mainly in hospitalised or immunocompromised individuals. The spread of K. pneumoniae emerging virulent and multidrug-resistant clones is a worldwide concern and its identification is crucial to control these strains especially in hospitals. This article reports data related to multi-resistant K. pneumoniae strains, isolated from inpatients in the city of Manaus, Brazil, harbouring virulence and antimicrobial-resistance genes, including high-risk international clones belonging to clonal group (CG) 258. Twenty-one strains isolated from different patients admitted to four hospitals in the city of Manaus, located in the state of Amazonas, Northern Brazil (Amazon Rainforest region) were evaluated. The majority of strains (61.9% n = 13) were classified as multidrug-resistant (MDR), and five strains (23.8%) as extensively drug-resistant (XDR). Several virulence and antimicrobial-resistance genes were found among the strains and eight strains (38.1%) presented the hyper-mucoviscous phenotype. MLST analysis demonstrated a great diversity of STs among the strains, totaling 12 different STs (ST11, ST23, ST198, ST277, ST307, ST340, ST378, ST462, ST502, ST3991, ST3993 and ST5209). Three of these (ST11, ST23 and ST340) belong to CG258.Supplementary InformationThe online version contains supplementary material available at 10.1007/s00203-022-02813-0.

Spatial Interpolation of Air Pollutant and Meteorological Variables in Central Amazonia

The Amazon Rainforest is highlighted by the global community both for its extensive vegetation cover that constantly suffers the effects of anthropic action and for its substantial biodiversity. This dataset presents data of meteorological variables from the Amazon Rainforest region with a spatial resolution of 0.001° in latitude and longitude, resulting from an interpolation process. The original data were obtained from the GoAmazon 2014/5 project, in the Atmospheric Radiation Measurement (ARM) repository, and then processed through mathematical and statistical methods. The dataset presented here can be used in experiments in the field of Data Science, such as training models for predicting climate variables or modeling the distribution of species.

Biochemical and phylogenetic characterization of the wastewater tolerant Chlamydomonas biconvexa Embrapa|LBA40 strain cultivated in palm oil mill effluent.

The increasing demand for water, food and energy poses challenges for the world´s sustainability. Tropical palm oil is currently the major source of vegetable oil worldwide with a production that exceeds 55 million tons per year, while generating over 200 million tons of palm oil mill effluent (POME). It could potentially be used as a substrate for production of microalgal biomass though. In this study, the microalgal strain Chlamydomonas biconvexa Embrapa|LBA40, originally isolated from a sugarcane vinasse stabilization pond, was selected among 17 strains tested for growth in POME retrieved from anaerobic ponds of a palm oil industrial plant located within the Amazon rainforest region. During cultivation in POME, C. biconvexa Embrapa|LBA40 biomass productivity reached 190.60 mgDW • L-1 • d-1 using 15L airlift flat plate photobioreactors. Carbohydrates comprised the major fraction of algal biomass (31.96%), while the lipidic fraction reached up to 11.3% of dry mass. Reductions of 99% in ammonium and nitrite, as well as 98% reduction in phosphate present in POME were detected after 5 days of algal cultivation. This suggests that the aerobic pond stage, usually used in palm oil industrial plants to reduce POME inorganic load, could be substituted by high rate photobioreactors, significantly reducing the time and area requirements for wastewater treatment. In addition, the complete mitochondrial genome of C. biconvexa Embrapa|LBA40 strain was sequenced, revealing a compact mitogenome, with 15.98 kb in size, a total of 14 genes, of which 9 are protein coding genes. Phylogenetic analysis confirmed the strain taxonomic status within the Chlamydomonas genus, opening up opportunities for future genetic modification and molecular breeding programs in these species.

The Zygoptera/Anisoptera ratio as a tool to assess anthropogenic changes in Atlantic Forest streams

The changes in land use caused by human activities have directly impacted aquatic ecosystems, making these environments some of the most threatened places on the planet. It is increasingly necessary and urgent to develop tools to identify and assess the effects of human impacts on ecosystems and biodiversity. This study aimed to evaluate whether the Zygoptera/Anisoptera ratio can be an effective tool to measure ecological changes in Atlantic Forest streams. Adult Odonata were collected in 42 streams. An environmental integrity index was used as a measure of environmental change. The Zygoptera/Anisoptera ratio was efficient in classifying the state of preservation of streams; therefore, habitats with a proportion equal to or greater than 67 and 52% of richness and abundance of the suborder Anisoptera can be considered altered. Meanwhile, streams representing a proportion of 54 and 67% of richness and abundance of the suborder Zygoptera can be considered little altered or preserved. The proportions of responses were close to the proposals for streams in the Amazon rainforest region. The ease of identifying the specimens in the different suborders of Odonata is practical, enabling the implementation of participatory monitoring with quick responses for monitoring in the aquatic ecosystems assessed in the region. It is important to test the Zygoptera/Anisoptera ratio for a broader validation in biomes where this evaluation has not yet been carried out. In the future, this will enable the implementation of networks for monitoring the integrity of aquatic environments quickly, effectively and at a low cost.

The Logistics of medical devices for indigenous health care attending in remote sites at Brazilian Amazon Rain Forest

BACKGROUND AND OBJECTIVE: There are in Brazil 896.917 indigenous and 47% of them dwell in the Amazon rainforest region. In order to avoid expensive displacement for this population, especially for surgeries such as hernias and cataracts, the Expedicionários da Saúde NGO attends this specific population three times a year since 2003 organized as a work party regime. This attending is done through a Field Hospital (FH) and is supported by Clinical Engineering (CE). This article presents the characteristics of logistics as well as operation of medical and hospital devices in remote sites of Amazon region. The object of this paper is to describe the transportation processes, installation, operation and maintenance used to ensure safe use of medical devices in one FH in the Amazon forest and to present solutions to proposed adverse conditions throughout the course of several expeditions.
 MATERIAL AND METHODS: It was Initially done a survey of the processes of transportation, installation, operation and maintenance of medical devices collected from 24 expeditions to the Amazon forest in a period of 8 years, since the implementation of CE team. A Task Analysis processes was performed to systematically identifying the process used for plan, prepare, transport and operate the medical devices in those past expeditions. Understanding the complexity and the specificities of each expedition a evolutive planning process based on Software Development Spiral Model was used to describes a continuous activity flow, prone to implement and test improvements in each new expedition. Besides the continuous improvement the model also takes in consideration budget solutions once all the work done by the ONG is voluntary. The efficacy of the method was evaluated from indicators of use of medical equipment, the assessment of reported adverse events and the interviews with the professionals of the EC team, users of the medical devices and opinion of the responsible for the managing of the expedition.
 RESULTS: Several improvements were observed speciality in the transporting and installation processes, mainly through the adoption of customized packages and manuals for assembly and disassembly of the parts of the medial equipment. Further enhancements were obtained through customizations and adaptations of the devices to the hostile characteristics of the environment. Both physicians and nurses were satisfied with the performance of the devices, and few procedures for repair and calibrate were required after the equipments were installed.
 CONCLUSION: The CE team is crucial to the implementation of FHs, being essential in the management of medical technology and in the planning and operation of this type of health structure. The spiral planning method were shown to be very satisfactory mainly because it takes into account the experiences and needs of the past expeditions and for allowing the continuous improvement of the already used processes. Given the great complexity of the RainForest environment in which the technologies will be used and the unpredictability of the risks and challenges to be faced by the EC team the evolutionary work approach presents itself as an applicable solution to planning of future expeditions.

Dataset from the Snakes (Serpentes, Reptiles) collection of the Museu Paraense Emílio Goeldi, Pará, Brazil.

BackgroundWe present a dataset with information from the snake collection of the Museu Paraense Emílio Goeldi, known as the “Ophidia Collection”. This collection currently has 26,728 specimens of snakes, including 9 families, 66 genera and 220 species. For the most part, it represents material from the Amazon Region. Specimens are preserved mostly in wet (alcohol) preparation, with some samples preserved in dry form, as is the case of the shells and skeletons of turtles. The dataset is now available for public consultation on the Global Biodiversity Information Facility portal (https://doi.org/10.15468/lt0wet).New informationThe Herpetological collection of Museu Paraense Emílio Goeldi comprises the largest collection of its kind in the Amazon region with about 100,000 specimens of amphibians and reptiles (chelonians, alligators, lizards, snakes and amphisbaenians). This collection currently has 26,728 specimens of snakes, including 9 families, 66 genera and 220 species, some of which are endemic to the Amazon rainforest region. The Museu Paraense Emílio Goeldi is the second oldest institution of science in Brazil in activity, founded in 1866.

Geographical distribution of Stryphnodendron adstringens Mart. Coville (Fabaceae): modeling effects of climate change on past, present and future

The world is passing through abrupt climate changes that are a threat for biodiversity. Stryphnodendron adstringens (Mart.) Coville (Fabaceae) is a tree species endemic to the “Cerrado” biome with a high economic potential. Its exploitation is done in an extractive way, which, coupled with climate changes and other landscape changes, can contribute to its decline. Here, we use ecological niche modeling (ENM) to map its distribution and environmental suitability in the past, present and future climates. The environmental variables were derived from community climate system model, for present, past and future scenarios. The maps showed that the specie had a larger distribution area in the past, during the last glacial maximum, and it decreased mainly in the Amazon rainforest region; today, the species is found mainly in the center of “Cerrado.” For the different climatic scenarios predicted for the future and considering various levels of anthropogenic drivers for climate change, a drastic loss of climatically suitability area of S. adstringens is expected, which may compromise the viability of the species. Our ENMs can then be useful to better establish and delimit conservation actions for this important species in the “Cerrado” region.

Development of non-linear models predicting daily fine particle concentrations using aerosol optical depth retrievals and ground-based measurements at a municipality in the Brazilian Amazon region

Epidemiological studies generally use particulate matter measurements with diameter less 2.5 μm (PM2.5) from monitoring networks. Satellite aerosol optical depth (AOD) data has considerable potential in predicting PM2.5 concentrations, and thus provides an alternative method for producing knowledge regarding the level of pollution and its health impact in areas where no ground PM2.5 measurements are available. This is the case in the Brazilian Amazon rainforest region where forest fires are frequent sources of high pollution. In this study, we applied a non-linear model for predicting PM2.5 concentration from AOD retrievals using interaction terms between average temperature, relative humidity, sine, cosine of date in a period of 365,25 days and the square of the lagged relative residual. Regression performance statistics were tested comparing the goodness of fit and R2 based on results from linear regression and non-linear regression for six different models. The regression results for non-linear prediction showed the best performance, explaining on average 82% of the daily PM2.5 concentrations when considering the whole period studied. In the context of Amazonia, it was the first study predicting PM2.5 concentrations using the latest high-resolution AOD products also in combination with the testing of a non-linear model performance. Our results permitted a reliable prediction considering the AOD-PM2.5 relationship and set the basis for further investigations on air pollution impacts in the complex context of Brazilian Amazon Region.

Simulated attack of defoliating insects on upland rice cultivated in new agricultural frontier from amazon rainforest region (Brazil) and its effect on grain production

Simulation of the attack of defoliating insects provides a measurement of the level of damage that the crop can support at a given developmental stage and also allows to quantify the loss of productivity. This study evaluated the effects of increasing levels of artificial defoliation in upland rice plants under field conditions, on grain production at three phenological stages, vegetative stage V8 (collar formation in the 8th leaf of the main stem), vegetative stage V12 (formation of the flag leaf) and reproductive stage R3/R4 (liberation of the panicle or anthesis). The percentage of damage at all stages increased significantly from 25% defoliation, and was higher when defoliation occurred in V8 and V12. Defoliation levels up to 50% in the reproductive stage did not influence the quantity of filled grains, total spikelets per panicle and weight of filled grains per panicle, and thus the pest control is not required. The data show that the control of leaf-chewing insects in upland rice should be restricted to the vegetative stage.

First live offspring of Amazonian brown brocket deer (Mazama nemorivaga) born by artificial insemination

The Amazonian brown brocket deer (Mazama nemorivaga) is an endemic species of the Amazon rainforest region, which has suffered constant threats due to hunting and increasing deforestation. Artificial insemination (AI), combined with genomic banks, is considered an important tool for maintaining conservation programs of endangered species; however, the number of live offspring born from AI in non-domesticated cervids is extremely low. Thus, studies designed to develop, adapt, or enhance AI techniques are of fundamental importance. This report describes a successful transposition of the cervix with semen deposition in the uterine lumen of a M. nemorivaga female, based on the transcervical AI technique used in sheep, as well as using specific tools develop for IA in small ruminants, which have resulted in the birth of a healthy male fawn.

Damage by Tibraca limbativentris Stål (Pentatomidae) to Upland Rice Cultivated in Amazon Rainforest Region (Brazil) at Different Growth Stages.

In this study, we evaluated the damage caused in the field by Tibraca limbativentris Stål adults at different levels of infestation (0, 1, 2, and 4 stink bugs) per three rice plants during three growth stages (V8, V13, and R4 stages) of upland rice cultivated in southwestern of Pará State, Amazon Rainforest region, Brazil. Heading time (panicle exertion) was affected by T. limbativentris infestations mainly in the vegetative stage and the whiteheads percentage in treatments ranged from 18.2 to 38%. The dead hearts percentages varied between 0 and 21.5%, and the mean number of primary branches (ramifications) ranged from 5.9 ± 0.4 to 12.3 ± 0.2. The number of empty spikelets was only affected in infestations with four insects/three plants, while the quantity of filled grains per panicle was affected only when infestations occurred during the vegetative stage. The total number of spikelets (filled + empty) per panicle decreased significantly in all phenological stages, and the percentage of damage ranged from 17 to 44% among treatments. Based on the proportion of damage observed, we suggest doubling the number of insects presently used as action threshold to 2 and 4 stink bugs per 15 stalks sampled for the vegetative stage, and of 1 or 2 stink bugs per 15 stalks sampled at the beginning of reproductive stage (R3/R4). Also, the field should be monitored during the entire vegetative stage, since most damage was observed in this phenological stage.

Biodiversity of mycobiota throughout the Brazil nut supply chain: From rainforest to consumer

A total of 172 Brazil nut samples (114 in shell and 58 shelled) from the Amazon rainforest region and São Paulo state, Brazil was collected at different stages of the Brazil nut production chain: rainforest, street markets, processing plants and supermarkets. The mycobiota of the Brazil nut samples were evaluated and also compared in relation to water activity. A huge diversity of Aspergillus and Penicillium species were found, besides Eurotium spp., Zygomycetes and dematiaceous fungi. A polyphasic approach using morphological and physiological characteristics, as well as molecular and extrolite profiles, were studied to distinguish species among the more important toxigenic ones in Aspergillus section Flavi and A. section Nigri. Several metabolites and toxins were found in these two sections. Ochratoxin A (OTA) was found in 3% of A. niger and 100% of A. carbonarius. Production of aflatoxins B and G were found in all isolates of A. arachidicola, A. bombycis, A. nomius, A. pseudocaelatus and A. pseudonomius, while aflatoxin B was found in 38% of A. flavus and all isolates of A. pseudotamarii. Cyclopiazonic acid (CPA) was found in A. bertholletius (94%), A. tamarii (100%), A. caelatus (54%) and A. flavus (41%). Tenuazonic acid, a toxin commonly found in Alternaria species was produced by A. bertholletius (47%), A. caelatus (77%), A. nomius (55%), A. pseudonomius (75%), A. arachidicola (50%) and A. bombycis (100%). This work shows the changes of Brazil nut mycobiota and the potential of mycotoxin production from rainforest to consumer, considering the different environments which exist until the nuts are consumed.

DETERMINAÇÃO DA ALTURA DA CAMADA LIMITE PLANETÁRIA NA FLORESTA AMAZÔNICA UTILIZANDO UM CEILOMETER

This study aimed to determine the average maximum height of the planetary boundary layer (PBL) through data obtained by ceilometer in the Amazon rainforest region. Used data used are from the GoAmazon Project located next to the Manacapuru municipality in the state of Amazon. Data obtained by the ceilometer for PBL height to 45 days of being analyzed rainy season (IOP1) and 45 days of drought station (IOP2) both in the year 2014. It was found that the ceilometer presented data consistent with that expected for the region. The maximum recorded were 1.245 (IOP1) and 1.685 (IOP2), it was observed that the erosion of the CLN was slower in IOP1. While the transition from CLC for CLN was longer in IOP2. ), it was observed that the erosion of the CLN was slower in IOP1. While the transition from CLC for CLN was longer in IOP2.