: Dengue is a viral disease whose causative agent is a virus transmitted by the Aedes aegypti mosquito, which uses water, not necessarily clean, to reproduce. This disease has become a serious public health problem, due to the difficulty in controlling the spread of this vector. Thus, alternative measures need to be studied to combat mosquito proliferation. This research sought to identify the relationship between the different degrees of environmental qualification and the occurrence of the vector A. aegypti; and to identify the relationship between the water dynamics of urban streams and the periods of vector infestation.This is an epidemiological and descriptive study of the incidence rate and mortality from dengue, seeking to correlate with rainfall, Human Development Index (IDH), Demographic Density and the Urban Cleaning Sustainability Index (ISLU). Predation experiments were also carried out under laboratory conditions using three fish species (Moenkhausia dichroura, Astyanax asuncionensis and Aequidens plagiozanatus), in which A. aegypti larvae were offered to the species to identify whether there would be predation; and, finally, an active search for Aedes aegypti was carried out in three urban streams in the city of Cáceres. Dengue incidence did not show a significant relationship with population density (R²= 0.0025; p=0.56), but it was related to rainfall (R²=0.0019; p<0.05). The month of January had the highest incidence (83.27/100 thousand inhabitants). A. plagiozanatus reached 97.4% of predation, while M. diehroura and A. asuncionensis showed similar behavior, reaching 64.52% and 54.92% of predation, respectively. Five vectors were captured in adult form at the river mouth of the Sangradouro stream and its banks, as well as 57 larvae in stages I, II, III and IV of A. aegypti i. Dengue fever revealed epidemic peaks with high incidence rates in Mato Grosso, not showing any relationship with Demographic Density, but expressing a significant relationship with rainfall. The Brazilian native fish showed competence as predators of Aedes aegypti larvae. In the urban stream Sangradouro, adult larvae and mosquitoes of the vector that transmit dengue were found.

“Ethnobotanical study in religionsof Afro-Brazilian mothers in the city of Cáceres, Mato Grosso, from the perspective ofWell live”

The species Cerdocyon thous (Linnaeus, 1766) is widespread over a large part of the South American territory, in Brazil its record occurs in large part, except in the Amazon. It is a common species in the Cerrado biome, as it adapts to anthropized and peri-urban environments. Anthropogenic areas bring the populations of wild animals closer to the domestic ones, allowing the transmission of parasites. The aim of the study was to evaluate the prevalence of intestinal parasites in the populations of domestic and wild canids, as well as the possibility of cross-contamination. For the capture of Cerdocyon thous, 10 folding Tomahawk traps were installed, measuring 115 x 55 x 60. As bait, pieces of chickens placed at the bottom of the traps were used. Biological material. In relation to domestic dogs, a questionnaire was applied to the owners of the animals regarding their life habits and the collection of biological material was carried out without the need for sedation. The samples were properly packaged and kept refrigerated until further analysis in the laboratory. The results obtained in the stool samples, according to Hoffman (1934) were positive for several parasites in domestic dogs with frequency of occurrence for Blastocystis sp. 60%, Trichuris vulpis 10%, Dipylidium caninum 10%, Hookworm 20%, Giardia lamblia 20% and Sarcocystis sp. 20%. For C. thous, the frequency of occurrence of mite eggs was 28.57%, Hookworm 42.85%, Blastocystis sp. 28.57%, Trichuris vulpis 14.28%. With the FAUST technique, parasites of domestic dogs were observed with frequency of occurrence for Blastocystis sp. of 30% and Sarcocystis sp. 10%. For C. thous with a frequency of occurrence of Hookworm 42.85%, Blastocystis sp. 57.14%, Trichuris vulpis 14, 28% and Capillaria sp. 14.28%. Blood samples from domestic and wild canids were subjected to Reverse Transcription followed by Polymerase Chain Reaction (RT-PCR) to investigate pathogens (Anaplasma sp., Babesia sp., Erlichia canis, Erlichia sp, Hepatozon sp., Leishmania sp. and Trypanosoma sp and CDV). The results showed that 50% of samples from domestic dogs were positive for Anaplasma sp., 60% for Babesia sp., 30% for Erlichia canis and 20% for Erlichia sp. However, they were negative for the antigens Hepatozon sp., Leishmania sp., Trypanosoma sp. and CDV. For C. thous all samples had negative reactions for all genotypes analyzed. Serology for distemper antibody detection (rapid test kit) in serum samples from domestic and wild dogs revealed that 80% of the samples were reactive for domestic dogs and none for C. thous. The frequency of occurrence of parasites in the feces and the presence of pathogens of infectious diseases in the blood of domestic dogs can characterize a threat to wild dogs present in the Conservation Unit that have direct contact between them, as they have free transit between the Conservation Unit. and the surrounding areas. Considering that the home range of C. thous can reach more than 7 km2, which overlaps 60% of the sampled domestic dogs, this way it can contaminate not only the C. thous object of this study, but also Chrysocyon brachyurus (maned wolf), Lycalopex vetulus (field fox) and Speothos venaticus (vinegar dog), as well as the feline species present in the area. For example, Blastocystis sp. was present in both species, which may demonstrate the contact between the animals. Preservation measures imply a work of sensitization of some residents who own domestic dogs, related to the vaccination and deworming of these animals. Thus, we emphasize that the combination of analysis techniques seeking to identify pathogens and parasites that affect diseases in domestic and wild canids, in addition to the mode of contagion, is essential to propose measures for the conservation of wild fauna.

Mercury (Hg) is a global concern due to its adverse effects on human health, food safety and the environment. It is one of the most serious environmental pollutants and related toxic compounds can be easily transferred to water, soil and sediment. The accumulation over time of large inputs of Hg into the environment results in the widespread occurrence of Hg throughout the food chain, requiring action to identify the main local sources of Hg. The Brazilian Pantanal is a floodplain covering an area of almost 140,000 km 2 and is subject to seasonal and monomodal floods, mostly once a year. As the final receptor of pollutants, derived from anthropogenic pressures, it is a vulnerable region threatened by recent trends in economic development, mainly by persistent and lethal fires that occurred mainly in the years 2018 to 2020. Traces of mercury have already been found in algae, fish and reptiles in the North Pantanal; which brings concern for the fragile balance of this ecosystem as well as for the health of the animals and the riverside population. In this sense, the objective of this research was to evaluate the origin of mercury in the North Pantanal Ecosystem. With an exploratory methodology, the collections took place in the springs, course and mouths of the Jauru, Cabaçal, Sepotuba and Paraguai rivers, whose waters form upstream of the edges of the Pantanal. Forty-eight points were considered, and samples of leaves, soil, sediment, zooplankton and particulate matter in water were collected. To determine the THg, a direct analyzer (DMA 80) was used, followed by statistical analyses. There were significant relationships of the four rivers and areas studied for soil (p<0.05). And between the spring, course and mouth areas, there were significant relationships for sediments (p<0.05). Among the studied rivers, the Cabaçal river presented the highest concentration of THg for zooplankton, (11.01 ± 5.34 ug/kg), soil (15.58 ± 16.77 ug/kg) and leaves (21.81 ± 10.18 ug/kg), while the Jauru River presented for sediments (3.67 ± 21.47 ug/kg). The Cabaçal River was associated with intense sedimentation of the basin lithology and the occurrence of Latosols, associated with land use, in addition to the fluvial dynamics itself. The Jauru River associated with PCHs established in the region since 1990. The concentrations found even below the limits established by the National Health Surveillance Agency (ANVISA) and the National Council for the Environment (CONAMA) require government actions to prevent environmental contamination, guiding and aware of the risks to which the population may be exposed, as well as the preservation of this fragile ecosystem. Continuous monitoring should occur mainly because the number of fires has increased in the last two years (2020-2021) in the Pantanal Biome.

This research was carried out within the hydrographic basin of Cachoeirinha stream, placet at Cáceres city, Mato Grosso State. The main purpose was to study the several environmental characteristics, the pedological units, the distincts ways of land usage, the environmental fragilities and the morphodynamics of the hydrographic basin. The methodology focused, firstly, on structuring this study in five chapters. The environmental elements characterization was performed through a review in scientific publications, also from the RADAMBRASIL Project and from the Ministry of Defense, pages and yet from Mato Grosso Atlas – Planning Secretary of Mato Grosso StateSEPLAN. The basin area delimitation was made through the Digital Elevation Model (MDE) and the National Institute for Space Research (INPE). The thematic maps were elaborated through the IBGE database and field activities. The representative pedological units characterization was outlined based on EMBRAPA manuals, field observations, opening of trenches, morphological description, gathering and physicalchemical analyzes. The land usage, ocuppation and covering process was characterized through scientific publications, public documents, maps and information from INCRA and MAPBIOMAS with images referring to the years 1986, 1996, 2006 and 2020, processed in the software QGis 3.4.6 and field activities with informal interviews. The basin compartmentalization in high, medium and low course and the drainage network characterization was carried out through the SEPLAN-MT; regarding the maps elaboration with the classes of fragility, it was outlined through the algebra of maps "Calculator Raster", following adaptations of scientific productions. In relation to the morphometric parameters definition it were performed field activities in March and August/2020 (flood and drought periods in the hydrographic basin) for observations, also bathymetry and gathreing of water samples for analysis in order to quantify the suspended solid load. The results from first chapter show that the regional climate is AW. However, the different altitudes influenced the formation of two climatic units: Hot Mesothermal Altitude Tropical of Southern Facade of Plateaus, with na area of 69,16%, comprising the upper course of the basin (Serrana Province), and the Sub-Humid Megathermal Tropical of the Depressions and Plateaus of Mato Grosso, which occupies 30.84% in the middle and lower courses (Depression of the Upper Paraguai and the the Paraguay River Plain). Of the geological formations, the Raizama Formation Sandstone is evident, present in 27.88% of the upper course of the basin, playing an important role in the process of supplying the groundwater table and the Sepotuba Formation, occupying the upper and middle course valleys, where the fluvial slopes flow, with an area equivalent to 41.03%. The Geomorphology shows the Serrana Province, occupying 52.65% of the basin (upper course) and the Paraguay River Plain with an area of 0.24% in the lower course, an environment of sediment deposition that influences the exuberance of the floristic landscape. The predominant vegetation cover is the Savanna type, which characteristics are influenced mainly by 26 pedological attributes. The largest unit is the Wooded Savanna without gallery forest, covering 54.78% of the basin, corresponding to areas with higher altitudes (315 to 700 meters) in the Serrana Province. The composition with the highest stature is the Alluvial Seasonal Semideciduous Forest with an emerging canopy, present in the lower course, in the Paraguay River Plain region. In the second chapter, the pedological units were identified, evidencing the greatest representation of the Regolithic Neosol, occupying an area of 40.69% in the Serrana Province region and the Latosols, in 40.5% in the Upper Paraguay Depression. The third chapter showed that usage and occupation began during the 18th century with subsistence agriculture and extractive activities. From the 19th century, with the immigrants arrival, there was the insertion of mechanized agriculture, initiating social conflicts, deforestation of large areas, fires, use of pesticides, erosion and soil compaction, among other impacts. Currently, 63% of the basin is covered by Cerrado vegetation, 34.52% is occupied by pasture and 1.68% by grain monoculture. The fourth chapter show that the strongest environmental fragility is in the region of the Serrana Province with an area of 11.57% of the basin, where the relief is sloping and the lowest classification (very weak and weak) is found in the valleys of Depression of the Upper Paraguai and in the Plain of the Paraguai River, where the relief presents a lower slope. Regarding the climate, the strong fragility was in the area dominated by the Tropical Climate of Hot Mesothermal Altitude of the Meridional Facade of Plateaus, as a consequence of the higher precipitation incidence on steep slopes. As for the soils, the Eutrophic Fluvic Neosol Tb typical in the Paraguay River Plain and the Eutrophic Litholic Neosol in the Serrana Province showed very strong fragility and really weak fragility for the middle course Latosols, where the relief presents smooth wavy areas. Where the land covered by the Forest Formation appears in the low course, the environmental fragility is very weak (23.57% of the basin), for the Savanna and Campestral Formation; 39.37% of the area in the upper course and the fragility is weak. The most expressive class of potential fragility (46.42% of area) and emerging (68.19% of the basin) is the medium. The increase in the occupied area among the fragilities happens with the insertion of land use and occupation. The fifth chap4ter shows that geomorphology created the exorheic flow pattern and the parallel drainage. The drainage density was 0.52 km/km² and channels, 0.10 channels/km², considered low due to the geology and geomorphology of the basin. The periods of flood and drought influence the indices of flow, depth, velocity and, consequently, the contribution of liquid and solid discharge to the Paraguay River. The realization of this study allowed the knowledge about the characteristics of the basin, which can guide environmental management actions and contribute to environmental conservation. The flood and drought periods influence the indices of flow, depth, velocity and, consequently, the contribution of liquid and solid discharge to the Paraguay River. Performing this study allowed the knowledge about the characteristics of the hydrographicy basin, which can guide environmental management actions and contribute to environmental conservation.

Birds can be effective indicators of ecological conditions in wetlands, because constitute  
one of the most diverse biological groups, have high mobility, and provide fundamental  
ecological functions that guarantee the maintenance of ecosystem support and regulation  
services. In this research, we evaluated the taxonomic and functional diversity of birds
through distinct approaches, using the group as a potential ecological indicator to  
contribute to conservation actions and environmental planning in the Brazilian Pantanal  
floodplain. For this, we structured the document into four chapters, corresponding to two  
published articles, one submitted and one in preparation. The first chapter is an overview
of scientific knowledge about birds in the Pantanal based on publications from the last 30  
years, which made it possible to direct and substantiate future research. In the second  
chapter, we carry out an inventory and consolidate a list of bird species that occur in a  
protected area of the Pantanal which is recognized as a wetland of international  
importance, which can contribute to the knowledge of the distribution and occurrence of  
birds in this floodplain. In the third chapter, we researched how the richness, abundance  
and functional structure of birds with different degrees of wetlands dependence are  
influenced by the flood pulse dynamics of the Pantanal. We expected to find different  
ecological responses for each birds group in relation to hydrological cycle. In the fourth  
chapter, we propose to investigate whether the modification of habitats across the  
hydrological cycles affects the taxonomic and functional diversity of birds, in order to  
access environmental changes in a tropical floodplain. We expect to contribute to the  
knowledge of the taxonomic and functional diversity of birds in floodplains, as well as  
towards advances for wetlands conservation

The theme of female peasant territorialities of the Cerrado developed in this thesis, sought to contemplate approaches involving the Cerrado biome and its territorialization and the consequences for socio-environmental and cultural diversities. the gradual importance economic growth of the biome was processed by the prosperous productive capacity, in the expansion of the Brazilian agricultural frontiers. The development of agrarian capital in these fields, made viable the transactions and partnerships of private and public sectors with strategies and negotiations for international agro-export markets. This historic setting implied changes in the socio-environmental and cultural relations of traditional peoples cerradeiros, whose material and immaterial dimensions in the relationships of the subjects with the territory, were configured in the consolidation of survival actions and identities. These relationships reconcile webs of complicity and bonds creating a unique feature, combining the daily needs of life and the offer of the Cerrado's biodiversity. In this follow-up, we sought to investigate the protagonism of peasant women in closed territories, their experiences and legacies. To achieve this goal, we used of life history, a methodology that is part of the universe of qualitative research, relying on the procedures of participant observation and open interviews. With incipient results, these techniques were enough to understand that, even in the face of invisibility conditions given by the patriarchal social structure and setbacks imposed by the transformations of work in the countryside, peasant women research participants, revealed that they house, with simplicity, the ways of life founded in the cerradeiros fields and protect customs, imprint their practices on cultural knowledge, promoting their protection. Even with partial search results, it is worth ensuring that, although neglected, the female presence emerges as protagonist in the struggle, in the exercise of resistance and permanence on earth.

Habitat management in agricultural landscapes to include species diversity of flowering plants are important to increase or maintain functions. multiple, such as pollination and biological control. Given the above, the The main objective of this study was to evaluate the effect of attractive flowers on the insect regulation environmental services (pollination and biological control) in two nightshade species, the tomato (Solanum lycopersicum L.) and the eggplant (Solanum melongena L.). The dissertation study was divided into two articles: the first article was carried out in commercial tomatoes (6200 m²) in the municipality of São José dos Quatro Marcos (Mato Grosso, Brazil). the design experimental was completely randomized with 15 plots of 5 x 4 meters, consisting of 16 tomato plants, with two treatments 1) tomato without strip of attractive flowers (control); 2) tomato striped with attractive flowers of coriander and sorghum. The sampling of pollinating insects and natural enemies was performed with Bee bowls trap and active collection for 8 days at flowering for coriander and 8 days for sorghum. Tomato production was verified by weight of the fruits of 8 plants/plot. Data were analyzed by t-test for compare the richness and abundance of insects between treatments. The production of tomato was analyzed by multiple regression to verify the effect of treatments (x1), insect diversity (x2) and x1:x2 interaction. THE abundance of natural enemies was greater in tomatoes with attractive stripes with flowers of coriander (p = 0.03) and the richness of pollinators was higher in striped tomato of sorghum flowers (p=0.05). The effect of the two bands of flowers intercropping (cilantro + sorghum) increased the total abundance of enemies by three times natural (IN) in tomato with flower bands (p= 0.04). Tomato production does not responded to the use of attractive flower bands and insect diversity. O second article was carried out in eggplant plantation (2320 m2 ) in the municipality of Cáceres (Mato Grosso, Brazil). The sample design was entirely randomized design consisting of 2 treatments, control (eggplant without attractive flowers, plots) and eggplant + sorghum flower strip with 5 repetitions and the total of 10 installments. For sampling of beneficial insects, the same methodology as the first article. Tomato production was verified by fruit weight, size (cm), diameter and number of fruits in 10 plants/plot. Statistical analyzes were the same used in the first article. Both in the evaluation of natural enemies and in pollinators a richness and abundance were greater in the plots that contained flower bands sorghum attractants. Eggplant production in fruit size was favored by the abundance of natural enemies and number of fruits by the method of open pollination. Thus, the planting of attractive flower strips of coriander and sorghum in tomato and sorghum in eggplant has the potential to favor the increase in biological control and pollination services.

Ecological studies relating to periphyton, particularly in ecosystems Brazilian tropical waters are important tools for knowledge of biotic integrity and assist in the development of diagnoses of causes of environmental problems, being used for example as an indicator of water quality and its trophic state. This work aimed to analyze the structure and dynamics of periphytic algae at different scales temporal and spatial in Pantanal, Brazil. The periphytic algae community was evaluated on natural substrates (aquatic macrophytes) in a flood area tropical, specifically in the Taiamã Ecological Station, which is located in the Upper Paraguay River Basin, Pantanal Mato Grosso. In the first approach, the dynamics of taxonomic and functional diversity of diatoms from environmental filters and the contribution of diversity functional in tropical wetland. We found a significant variation between functional traits of communities in different hydrological periods (flood, ebb, drought and flood) and a replacement of species between years (taxonomic diversity), without the community losing its characteristic functional in each phase of the flood pulse, so we indicate the importance of determination of functional traits in floodplains. On Monday approach, the potential for mercury (Hg) methylation in the radicial periphyton of three species of aquatic macrophytes: Paspalun repens P.J. Bergious, Salvinia auriculata Aubl., Eichhornia crassipes (Mart) Solms in relation to the trophic index of the peripheral community in a flood area tropical. The primary productions of methylmercury in the periphyton associated with roots of the macrophytes under study varied between species, in addition to verified a decrease in the primary production of methylmercury as the increase in the trophic index, which indicates the influence of primary producers in the periphyton on mercury methylation rates in macrophyte rhizomes. We conclude that the results of this study contribute to data formation about the periphytic community and its ecological interactions, which can serve as references for interventions aimed at managing the Pantanal system, as in the use of its water resources, as the dynamics of the community are regulated by environmental conditions and your knowledge can help in assessment of the quality of aquatic ecosystems.

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FERNANDES, T. Particulate material emitted in fires, variables
meteorological events and respiratory illness in children in Southeastern Brazil.
Pará Amazon. Thesis (Doctorate in Environmental Sciences) - CELBE - Center for
Research in Limnology, Biodiversity, Pantanal Ethnobiology, University of
State of Mato Grosso Carlos Alberto Reyes Maldonado. Cáceres-MT, p. 254. 20211.2
.
Introduction: Atmospheric pollutants with a diameter smaller than 2.5 µm given off from
fires and the variability of meteorological elements are a major threat to
public health; in addition to effectively converging for the occurrence of hospitalizations
Hospitals for Respiratory System Diseases (RDD), especially in groups
more predisposed like that of children. Objective: Investigate possible relationships between the
number of hospital admissions for RSD in children under five years of age and the
PM2.5 and meteorological variables, in the period from 2010 to 2019, in 39 municipalities that
make up the Southeastern Mesoregion of Pará. Method: This is a descriptive study
with an ecological time-series design of the association between the morbidities
by DAR and fine particulate material (PM2.5) emitted in fires and attributes
meteorological (precipitation, air temperature and relative humidity). The data
epidemiological reports of admissions were obtained from the Hospital Information System of the
SUS (SIH/SUS), made available by the SUS Department of Statistics
(DATASUS). And the MP2.5 and meteorological data, in the information bank of the
Environmental Information System Integrated to Environmental Health (SISAM) and the system
National Institute of Meteorology (INMET). For the statistical analysis of the data, it was
adjusted the negative binomial model to estimate the relationship between the variables,
belonging to the class of Generalized Linear Models. However, a model
mixed was implemented and adjusted for each Integration Region and municipalities, using
a negative binomial distribution, adopting a significance level of 1%, with
based on the R statistical platform. Results: Between 2010 and 2019, were recorded
50,750 hospital admissions for respiratory diseases, and more than half of the cases
attended (56%) were male. The year 2010 exhibited 13.8% of the grand total of
hospitalizations. There was a higher frequency of hospitalizations in the rainy season (November to
May) corresponding to 62% of the total registered cases. The air temperature (β3=-
0.0143) and the relative humidity of the air (β4=0.0049) were the only explanatory variables
who exposed relationships with the cases of hospitalizations. However, only the moisture
exhibited a statistically positive relationship, indicating an increase in cases of hospitalization
by respiratory diseases due to increased humidity. It is estimated that the number
average of cases of hospitalizations for respiratory diseases increases approximately
4% for every 10% increase in the mean relative humidity value, and decreases
approximately 2% for every degree Celsius increase above the average temperature of the
air. Conclusion: Wetter periods can lead to increased humidity,
favoring fungal proliferation. This is the first study carried out for one of the
mesoregions of the state of Pará. Therefore, to assess the risk of hospital admissions
by respiratory diseases for the most predisposed population group due to
variability of meteorological elements is an important step for planning
and implementation of actions that go towards a better subjective well-being. You
public health managers can use the benchmarked prediction model to prepare the
health services to receive children in this age group with this morbidity.

AVES DO CORREDOR ECOLÓGICO DO RIO PARAGUAI NO PANTANAL: O QUE OCORREU EM 10 ANOS?

The indiscriminate use and the increase in the release of mercury (Hg) to the environment has made this metal a global problem, being among the top three substances that pose a danger for the health of the environment. Of natural and anthropogenic origin, Hg has several physical forms. and chemicals that facilitate their distribution, biological enrichment and toxicity. the growing agricultural expansion, with deforestation and fires, endangers the integrity of the soil and promotes the release and re-emission of Hg to the atmosphere with subsequent deposition in soils and bodies of water, where it can undergo methylation and acquire its organic form, methylmercury (MeHg). With the potential to bioaccumulate and biomagnify in the trophic chain, MeHg reaches the waterfowl, top predators of the aquatic food chain. Searches around the world have been using this bird guild to study the dynamics and effects of this metal on health environmental. With the hypothesis that rmphotheca may demonstrate THg concentration levels (Total Mercury) accumulated over longer periods of time than organs usually used, we compared their concentrations with the concentrations of Hg in feathers from a species of European gull (Larus michahellis) and with two feathers, claws, muscle and liver Neotropical bird species (Megaceryle torquata and Chloroceryle amazon). With the objective to understand the dynamics of THg in the face of changes in land use and occupation, we analyzed THg concentrations in the organs of two species of kingfisher, Megaceryle torquata and Chloroceryle amazona, in the Juruena, Teles Pires and Paraguai rivers, with reading in the changes that have occurred in the landscape of the last 20 years. The results obtained showed that the rmphotheca is an efficient tool for the analysis of environmental contamination by Hg in water birds. The concentrations of THg in the organs of M. torquata, in descending order, were, rhamphotheca (3.00 µg/g) > feathers (2.95 µg/g) > claws (2.22 µg/g) > liver (1.21 µg/g) > muscle (0.70 µg/g) and for C. amazon, feathers (2.27 µg/g) > rmphotheca (1.92 µg/g) > claws (1.42 µg/g) > liver (0.47 µg/g) > muscle (0.46 µg/g). The species that best expressed the metal concentrations was C. amazon. The Pantanal area showed the lowest levels of THg in soil and inverse distribution behavior to soils in Amazonian areas, where, the Teles Pires river with the highest deforestation rate expressed the highest levels of THg in the soil and in the water and the smallest in the sediment. There was no strong correlation between the THg levels of the bird organs and abiotic variables (soil, sediment and water), which suggests that levels of Hg that will be bioavailable for the trophic chain are related to physical-chemical factors of the environment.