38 research outputs found

    Diários como ferramenta de formação docente continuada: uma análise no contexto de um mestrado profissi

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    Neste trabalho foram investigados os saberes docentes produzidos por quatro professores/mestrandos a partir da escrita, reescrita e análise de diários, em um processo que os envolveu como sujeitos e autores da pesquisa. Os aspectos mais recorrentes nas reflexões produzidas pelos professores/mestrandos estiveram relacionados sempre à prática pedagógica. Em geral, as reflexões abarcaram questões como: i) a abordagem do conhecimento químico, ii) o conhecimento prévio dos estudantes e, iii) recursos didáticos. Desse modo, o diário se apresentou como um instrumento valioso na formação continuada de professores, possibilitando o desenvolvimento profissional na medida em que permite adensar aprendizagens

    Pervasive gaps in Amazonian ecological research

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    Pervasive gaps in Amazonian ecological research

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    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

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    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

    Reserva Ducke: A biodiversidade amazônica através de uma grade

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    A obra apresenta de forma sintetizada o desmatamento causado pela expansão urbana ao redor Reserva Ducke. A obra é organizada em capítulos, com uma linguagem simples, ilustrado, amostragem de dados com método de inventário padronizado – RAPELD, assim atendendo uma diversidade de público interessado sobre a biodiversidade Amazônica da Reserva Ducke
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