This study presented relevant aspects about the Amazonian environment and how it impacts the thermal comfort of domestic buffaloes (Bubalus bubalis) raised in the Eastern Amazon. Furthermore, strategies for monitoring and mitigating animal heat stress are presented, based on research results with the species. Although domestic buffaloes are considered adaptable animals, exposure to intense solar radiation causes thermal discomfort. This condition is expressed in biophysical indicators, in metabolic, endocrine, behavioral responses, and in body thermographic patterns. Therefore, the biometeorological monitoring of production is crucial to support decision-making regarding environmental management strategies, genetic selection of thermotolerant individuals, and increase in animal welfare. Lastly, the use of silvopastoral systems can help to provide higher thermal comfort, which is a condition that directly impacts the productivity of milk and meat buffaloes when they are raised in tropical regions, such as in the Eastern Amazon.

Anthropized areas in the Brazilian Amazon require detailed mapping to identify zones for sustainable use. This study developed a topoclimatic zoning framework to evaluate the conservation and agroforestry potential of three native species: Carapa guianensis (Andiroba), Dipteryx odorata (Cumaru), and Bertholletia excelsa (Amazon Nut). The hypothesis was that integrating topographic and climatic data can effectively identify high-potential areas for these species to support forest restoration and sustainable management. This study applied ecological modeling and Geographic Information System (GIS) tools to classify zones into high, medium, and low potential for each species. Results showed Carapa guianensis has high potential in 64% of anthropized areas, Dipteryx odorata in 72% of the Legal Amazon, and Bertholletia excelsa in 58%, highlighting their adaptability and strategic value for restoration efforts. The findings emphasize the importance of topoclimatic zoning as a tool for conservation and sustainable use strategies. By aligning with Brazil’s Payment for Environmental Services (PES) Law, this approach can foster agroforestry practices, enhance biodiversity conservation, and strengthen the Amazon bioeconomy, ensuring ecological resilience and sustainable development.

Neste estudo foram avaliadas as mudanças estruturais dos fragmentos florestais superiores a 1km2 localizados na porção norte da área do Centro de Endemismo Belém (CEB). Os dados foram obtidos de imagens orbitais do satélite Landsat 5 e 8, dos anos de 1985 e 2018, e se aplicaram sete índices de análise da paisagem no sistema computacional FRAGSTATS v. 4.2. Foram considerados tamanho, forma e proximidade dos fragmentos. O resultado da análise temporal evidenciou que, nesse período, houve um aumento do número (quantidade) de fragmentos, redução do tamanho médio da área total dos mesmos, além da redução significativa da agregação, promovendo o aumento no nível de fragmentação que pode afetar a manutenção da biodiversidade local, pois se refere à diminuição da quantidade de área total de habitat na paisagem da área de estudo.

Hypostomus soniae is a small sized armored catfish endemic to the Tapajos River basin and ranked as one of the most exploited ornamental fish in the Santarem export marketplace. This study aims to evaluate distributional patterns of Hypostomus soniae and contribute to the species conservation in the face of development of the ornamental fish trade in the Amazon region. We compiled data associated with geographic coordinates in public repositories, supplemented with original field records. We compared our data to published records in the literature and museum collections to check for accuracy. To investigate the fishery and commercialization of H. soniae, we conducted interviews with ornamental fish stakeholders from the local trade. We also made direct observations in the fishing sites and export facilities in Santarem. A cluster analysis of the geolocation data was carried out to explore the spatial distribution patterns. The volume of captures and exportation of H. soniae decreased during the period 2020-2023. The occurrence of H. soniae was associated with annual rainfall ranging from 2,000 mm to 2,500 mm and concentrated in two municipalities of the State of Mato Grosso and two of the Para State. The species distribution area has been threatened, unfortunately, by fishermen who do not respect the laws that support artisanal fishing in the Amazon.

A utilização dos recursos naturais demanda por ações que apontem indicadores de sustentabilidade para garantir a preservação da biodiversidade em áreas intactas, bem como o uso conservacionistas em áreas já antropizadas na Amazônia brasileira. O conhecimento de áreas potenciais ao plantio de espécies impactadas pela supressão e/ou àquelas com elevado interesse bioeconômico podem subsidiar à tomada de decisão com base nos pressupostos da sustentabilidade. O objetivo neste estudo foi analisar áreas com potencial para inclusão da D. odorata em áreas antrópicas no estado do Pará. Utilizando-se a análise de componentes principais identificaram-se as variáveis mais expressivas para seleção das áreas potenciais com base em ocorrências e vaiáveis abióticas. Em sistema de informação geográfica (SIG) foram organizados os planos de informações e integrados por álgebra de mapas. Os resultados apontaram que 9,40% do estado apresenta alto potencial, 21,56% médio e 5,23% baixo potencial ao plantio de cumaru (D. odorata). A espécie ocorre em cerca de 30% em todo o estado, predominando nas tipologias climática Af2, e Am2. As áreas potenciais de D. odorata visam subsidiar políticas públicas voltadas à conservação e a sustentabilidade dessa importante espécie à bioeconomia da Amazônia.

In the native açaí groves of Lago do Maicá, in western Pará, harvesting is still performed using traditional techniques such as the peconha, which is a rope device tied to the feet that helps with climbing açaí palms. The absence of affordable and locally adaptable technologies compromises the safety of extractivists and limits the strengthening of the açaí value chain, affecting the development of a forest-based bioeconomy. This study focused on the Quilombo of Murumuru to understand the profile of local extractivists and identify which technologies could be more easily adopted in floodplain environments. After ethics approval, fieldwork involved participatory activities including knowledge-sharing meetings, transect walks, community discussions, and structured interviews. The results indicated that most collectors identify themselves primarily as açaí extractivists. Some rely exclusively on this activity for income, while others complement it with fishing or agro-extractivism. Reports of occupational risks were frequent, especially due to falls and contact with venomous animals. There was also a clear lack of technical assistance and limited access to context-sensitive technologies. The study highlights the need for institutional partnerships that support income diversification, value traditional knowledge, and improve working conditions. Strengthening the native açaí value chain in floodplain regions is essential for reducing socioeconomic vulnerability and advancing a regenerative, community-centered bioeconomy in the Amazon.