13 research outputs found

    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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    Cidadania por um fio: o associativismo negro no Rio de Janeiro (1888-1930)

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    Pervasive gaps in Amazonian ecological research

    Get PDF
    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

    Diagnosticando a cistite idiopĂĄtica felina: RevisĂŁo

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    Sabe-se que a casuĂ­stica de gatos que apresentam sinais clĂ­nicos referentes ao trato urinĂĄrio inferior (STUI) no mundo inteiro Ă© enorme. Mas, reconhece-se tambĂ©m que, na maioria desses casos, nĂŁo se conhece a causa especĂ­fica que desencadeia tais sinais, assim como, sinais referentes a outros sistemas que por ventura venham a ser acometidos anteriormente ou concomitantemente aos STUI. O objetivo desse trabalho Ă© investigar quais as evidĂȘncias existentes atualmente sobre a cistite idiopĂĄtica/intersticial felina (CIF) e como que se dĂĄ a abordagem do paciente felino para essa sĂ­ndrome: quais perguntas devem ser feitas ao tutor, os achados dos exames fĂ­sico e complementar, bem como os tratamentos mais indicados em cada caso em particular

    Lipidose hepåtica secundaria à colangiohepatite em felino doméstico sem raça definida: Relato de caso

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    Este relato mostra o caso de um felino sem raça definida, de um ano e quatro meses de idade diagnosticada com lipidose hepåtica secundaria à colangiohepatite. Relata a importùncia dos exames complementares no diagnóstico da doença e o tratamento à base de suporte nutricional contendo alto teor proteico, que demonstrou ser essencial na recuperação do paciente

    Necessidade, contingĂȘncia e contrafactualidade. A queda do ImpĂ©rio reconsiderada

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