62 research outputs found

    Extractive Reserves in the Brazilian Amazon thirty years after Chico Mendes: social movement achievements, territorial expansion and continuing struggles

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    The Brazilian Amazon contains the largest remaining contiguous forest in the tropics, but also faces strong development pressures and one of the highest rates of deforestation in the world. In the 30 years since the murder of the rubber tapper leader Chico Mendes and the subsequent creation of Extractive Reserves (ERs), this protected area model continues to be a conservation and development strategy that strives to secure land for forest-dependent smallholders and stem the advance of large-scale deforestation in the region. As of August 2018, 76 federal and state ERs have been created in the Brazilian Amazon, spanning over 14 million ha. Despite three decades of ER implementation and its importance to people-based conservation, there has not yet been a region-wide analysis of this model. In order to fill this gap, we analyze the spatial and temporal trajectory of ERs and how the implementation of this policy played out differently across Amazonian states. Grounded in a political ecology framework, we identify four phases of ERs implementation (inception, consolidation, expansion, and stagnation). We assess the land allotted in each state to ER protection and examine the federal and state-level political and institutional dynamics that may have favored or limited the growth of the ER model. Although ERs made an impressive impact, and remain in the spotlight of environmental policy debates in Brazil, challenges remain to combat continued pressures at Amazon development frontiers. This paper contributes to better understanding the current condition of the ER model and provides lessons for its continued implementation in the Brazilian Amazon, and its role in forest conservation

    Leafcutter Ant Nests Inhibit Low-Intensity Fire Spread in the Understory of Transitional Forests at the Amazon's Forest-Savanna Boundary

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    Leaf-cutter ants (Atta spp.) remove leaf litter and woody debris—potential fuels—in and around their nests and foraging trails. We conducted single and three annual experimental fires to determine the effects of this leaf-cutter ant activity on the behavior of low-intensity, slow-moving fires. In a transitional forest, where the southern Amazon forest meets the Brazilian savanna, we tested whether leaf-cutter ant nests and trails (i) inhibit fire spread due to a lack of fuels, and (ii), thereby, reduce the total burned area during these experimental low-intensity fires, particularly at forest edges where leaf-cutter ant abundance was higher. Fine-medium fuel mass increased with an increase in distance from ant nest, and the mean area of bare soil was greater on nests than on the forest floor. Between 60 to 90 percent of the unburned area was within 30 m of ant nests, and burned area significantly increased with increasing distance to ant nests. In addition, the number of ant nests declined with increasing distance from the forest edge, and, with exception of the first experimental fire, burned area also increased with increasing distance from the edge. The present study provides new insight to fire ecology in Amazon environments

    Access to Primary Dental Care and the Work Process of Oral Health Teams: An Analysis of the 3rd Phase of the PMAQ-AB Program

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    Objective: To characterize the access to primary dental care and the work process of Oral Health Teams (OHTs), nationwide and by geographic region, based on data from the 3rd phase of the PMAQ-AB (the Program for Improving Access and Quality of Primary Care). Material and Methods: This was a cross-sectional study using data from the external assessments of the PMAQ-AB regarding the variables access to dental care and the work process of OHTs. The data were analyzed descriptively. Results: A significant number of healthcare users (41.2%) reported an average waiting time of 10 days to schedule dental appointments at the primary care facility (PCF). In the Northeast region, a greater number of users (48.4%) had access to dental care, with a waiting time of 7 days, whereas a smaller number of users in the Southeast region could schedule an appointment with the dentist (33.9%) and experienced a longer waiting time (17 days). Most OHTs worked in Primary Care Teams (PCTs) (85.1%), received support from Specialized Dental Care Centers (70.9%), worked with scheduled appointments and/or spontaneous demands (98.0%), listened to the users’ complaints during user embracement sessions (99.0%), and scheduled the first appointment at the dental office (51.9%). Conclusion: In Brazil, 41.2% of the healthcare users had access to dental care and experienced a waiting time ranging from 7 to 17 days, depending on the geographic region. While the OHTs developed primary oral care actions, further initiatives to ensure the expansion of access to dental care are needed

    Ecological research in the Large Scale Biosphere Atmosphere Experiment in Amazonia: A discussion of early results

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    The Large-scale Biosphere–Atmosphere Experiment in Amazonia (LBA) is a multinational, interdisciplinary research program led by Brazil. Ecological studies in LBA focus on how tropical forest conversion, regrowth, and selective logging influence carbon storage, nutrient dynamics, trace gas fluxes, and the prospect for sustainable land use in the Amazon region. Early results from ecological studies within LBA emphasize the variability within the vast Amazon region and the profound effects that land-use and land-cover changes are having on that landscape. The predominant land cover of the Amazon region is evergreen forest; nonetheless, LBA studies have observed strong seasonal patterns in gross primary production, ecosystem respiration, and net ecosystem exchange, as well as phenology and tree growth. The seasonal patterns vary spatially and interannually and evidence suggests that these patterns are driven not only by variations in weather but also by innate biological rhythms of the forest species. Rapid rates of deforestation have marked the forests of the Amazon region over the past three decades. Evidence from ground-based surveys and remote sensing show that substantial areas of forest are being degraded by logging activities and through the collapse of forest edges. Because forest edges and logged forests are susceptible to fire, positive feedback cycles of forest degradation may be initiated by land-use-change events. LBA studies indicate that cleared lands in the Amazon, once released from cultivation or pasture usage, regenerate biomass rapidly. However, the pace of biomass accumulation is dependent upon past land use and the depletion of nutrients by unsustainable land-management practices. The challenge for ongoing research within LBA is to integrate the recognition of diverse patterns and processes into general models for prediction of regional ecosystem function

    Under-reporting of COVID-19 cases among indigenous peoples in Brazil : a new expression of old inequalities

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    Objective: To estimate the incidence, mortality and lethality rates of COVID-19 among Indigenous Peoples in the Brazilian Amazon. Additionally, to analyze how external threats can contribute to spread the disease in Indigenous Lands (IL). Methods: The Brazilian Amazon is home to nearly half a million Indigenous persons, representing more than 170 ethnic groups. As a pioneer in heading Indigenous community-based surveillance (I-CBS) in Brazil, the Coordination of the Indigenous Organizations of the Brazilian Amazon (COIAB) started to monitor Indigenous COVID-19 cases in March of 2020. Brazil's Ministry of Health (MOH) was the main source of data regarding non-Indigenous cases and deaths; to contrast the government's tally, we used the information collected by I-CBS covering 25 Special Indigenous Sanitary Districts (DSEI) in the Brazilian Amazon. The incidence and mortality rates of COVID-19 were calculated using the total number of new cases and deaths accumulated between the 9th and 40th epidemiological weeks. We studied (a) the availability of health care facilities to attend to Indigenous Peoples; (b) illegal mines, land grabbing, and deforestation to perform a geospatial analysis to assess how external threats affect Indigenous incidence and mortality rates. We used the Generalized Linear Model (GLM) with Poisson regression to show the results. Results: MOH registered 22,127 cases and 330 deaths, while COIAB's survey recorded 25,356 confirmed cases and 670 deaths, indicating an under-reporting of 14 and 103%, respectively. Likewise, the incidence and mortality rates were 136 and 110% higher among Indigenous when compared with the national average. In terms of mortality, the most critical DSEIs were Alto Rio Solimões, Cuiabá, Xavante, Vilhena and Kaiapó do Pará. The GLM model reveals a direct correlation between deforestation, land grabbing and mining, and the incidence of cases among the Indigenous. Conclusion: Through this investigation it was possible to verify that not only the incidence and mortality rates due to COVID-19 among Indigenous Peoples are higher than those observed in the general population, but also that the data presented by the federal government are underreported. Additionally, it was evident that the presence of illegal economic activities increased the risk of spreading COVID-19 in ILs
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