Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

O anteprojeto da Vila Operária de João Monlevade-MG e as ideias do arquiteto Lúcio Costa.

O objetivo desse artigo consiste na exposição, a partir de levantamento bibliográfico, acerca do anteprojeto arquitetônico de autoria de Lúcio Costa, submetido ao concurso realizado pela Companhia Siderúrgica Belgo Mineira (atual ArcelorMittal) no ano de 1934, com a finalidade de se construir a Vila Operária de João Monlevade – MG, realizando assim um resgate histórico das primeiras propostas do arquiteto, que, anos mais tarde, se tornaria um dos mais importantes nomes do modernismo brasileiro

Saberes ambientais nos livros indígenas: uma proposta de educação ambiental a partir das árvores

Tendo como referência principalmente três livros de autoria indígena: o Livro das Árvores (1997, dos povos Ticuna), Esta é a Terra Que Nós Plantamos (2007, dos povos Kiukuro), e o livro Curar (2008, povos Maxakali), este artigo é o resultado de uma pesquisa inicial que busca, a partir de saberes tradicionais indígenas sobre as árvores e noções trazidas da antropologia, como o perspectivismo ameríndio elaborado por Viveiros de Castro e a noção do Dono, propor dinâmicas para a educação ambiental. A partir de uma pesquisa teórica mas também aplicada, que buscou o diálogo entre o conhecimento desenvolvido pela Engenharia Ambiental e os saberes indígenas, foram propostas, e aqui apresentadas, oficinas que visam promover o conhecimento dos participantes tanto em relação ao que pensam os indígenas sobre as árvores quanto sobre as relações ecológicas que estes elaboram em seus saberes ambientais