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Climate change is predicted to exert further stress on already exploited ecologies and healthcare systems, added to this, the coronavirus SARS-CoV-2 (COVID-19) has signified a stimulus to revolutionize existing models of sustainable development in broad, and sustainable supply chains in the healthcare sector in particular. The Kruger to Canyons biosphere region in South Africa and the Amazonas state in Brazil serve as geographic case studies for this paper. The impact of economic globalization, natural catastrophes such as droughts, economic and geopolitical stresses, deforestation, economic and healthcare access inequalities in these two biomes converge with issues of climate change, and undercut coping mechanisms that are customarily used to oversee extreme events such as pandemics. The COVID-19 pandemic has deepened many of the economic and social difficulties which South Africa and Brazil are already facing. In comparison to Brazil, South Africa’s overall response to the pandemic can be regarded as a standout. By borrowing from best practices from prior public health responses to heath emergencies in South Africa, such as the tuberculosis and the HIV/AIDS crisis, South Africa has demonstrated its comparatively successful means of dealing with COVID-19. [ABSTRACT FROM AUTHOR]

The Brazilian Legal Amazon, crucial for ecosystem services such as biodiversity, carbon sequestration, and climate regulation, has declined over time in its capacity to absorb carbon dioxide. In response, global policies are being developed to mitigate climate change, which has emerged as a central issue in the planetary health approach. The objective of this study was to investigate how elementary school students in a rural school in the Southern Amazonas state perceive climate change and understand its implications for the health of the planet. Understanding the phenomenon's complexity, we conducted research with students from riverside communities in the Southern Amazon region. The data were analyzed using relative, absolute and percentage frequency tables, with a Fisher's test applied at a 5% significance level. A significant finding was the predominant difficulty students had in accurately conceptualizing climate change, highlighting notable gaps in their understanding of these wide-ranging issues. In the context of the global climate crisis we are experiencing, the integration of concepts related to climate change in basic education becomes indispensable. This study emphasizes not only the existing knowledge gap but also the urgency of educational approaches that prepare children and young people for the challenges of mitigation, adaptation, and understanding the complexities of climate change and its planetary implications. [ABSTRACT FROM AUTHOR]

Factors such as the Andean uplift, Isthmus of Panama, and climate changes have influenced bird diversity in the Neotropical region. Studying bird species that are widespread in Neotropical highlands and lowlands can help us understand the impact of these factors on taxa diversification. Our main objectives were to determine the biogeographic factors that contributed to the diversification of Euphoniinae and re-evaluate their phylogenetic relationships. The nextRAD and mitochondrial data were utilized to construct phylogenies. The ancestral distribution range was then estimated using a time-calibrated phylogeny, current species ranges, and neotropical regionalization. The phylogenies revealed two main Euphoniinae clades, Chlorophonia and Euphonia, similar to previous findings. Furthermore, each genus has distinctive subclades corresponding to morphology and geography. The biogeographic results suggest that the Andean uplift and the establishment of the western Amazon drove the vicariance of Chlorophonia and Euphonia during the Miocene. The Chlorophonia lineage originated in the Andes mountains and spread to Central America and the Mesoamerican highlands after the formation of the Isthmus of Panama. Meanwhile, the ancestral area of Euphonia was the Amazonas, from which it spread to trans-Andean areas during the Pliocene and Pleistocene due to the separation of the west lowlands from Amazonas due to the Northern Andean uplift. Chlorophonia and Euphonia species migrated to the Atlantic Forest during the Pleistocene through corridors from the East Andean Humid Forest and Amazonas. These two genera had Caribbean invasions with distinct geographic origins and ages. Finally, we suggested taxonomic changes in the genus Euphonia based on the study's phylogenetic, morphological, and biogeographic findings. [ABSTRACT FROM AUTHOR]

The objective of this work is to evaluate the occurrence of fire foci during the severe drought that occurred in 2005 in the State of Amazonas. The study was conducted in the State of Amazonas, which is inserted in the northern region of Brazil. The main types of vegetation are Igapó Forest, Várzea Forest and Terra Firme Forest. Kernel density was used to spatialize fire foci to quantify them in seven classes of land use and cover (forest, pasture, exposed soil, urban area, pastoral agroforestry system, agroforestry system and agriculture). Through the regression analysis, the relation among the number of fire foci and four meteorological variables was obtained: rainfall, evapotranspiration, relative humidity and average air temperature. Forest and pasture classes were those with the highest number of fire foci corresponding, respectively, to 58 and 37% of the total number of foci. This can be explained by the greater representativeness of these classes in the State and by the high degree of soil exposure in the case of pasture. The number of fire foci was higher in the dry season, covering approximately 85% of the total fire foci. The variable that had the greatest influence on the occurrence of fire foci in the dry season was evapotranspiration. The study puts on alert the vulnerability of the State of Amazonas to the occurrence of fires and may also suggest actions to mitigate carbon emissions and biomass stock. Research like this one may provide subsidies to region's managers in an attempt to preserve forest areas and a greater controlling in priority areas considered very high. [ABSTRACT FROM AUTHOR]