14 research outputs found

    Análise da Transformação da Paisagem na Vertente Oeste do Alto Curso do ARROIO GUABIROBA/ SANANDUVA-RS, DE 1996 A 2015

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    Estudar a transformação da paisagem a partir da análise temporal e espacial significa compreender as relações físicas e sociais de um determinado espaço geográfico, pois, através desta análise é possível identificar os fatores que influenciaram e influenciam na sua modificação. A pesquisa busca analisar as transformações ocorridas na paisagem por meio do uso e cobertura do solo da vertente oeste no alto e médio curso do arroio Guabiroba no município de Sananduva- RS, entre os anos de 1996 e 2015. Sendo assim, buscou-se contextualizar histórico e espacialmente a transformação da paisagem a partir do povoamento do local, apontando os principais usos do solo ao longo do tempo histórico em escala local. Como produto da análise constatou-se que a vegetação exótica tomou espaço de algumas áreas que em 1996 eram mata nativa e agricultura. No contexto geral na área de estudo a agricultura predomina incentivado pela modernização agrícola. Desse modo, a modernização agrícola acelerou o processo de transformação da paisagem e promoveu a redução da vegetação natural na área de estudo

    ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

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    Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ

    Relação entre plano de saúde e a realização do exame Papanicolaou: uma aplicação de escore de propensão usando um inquérito amostral complexo Relationship between health care insurance and Papanicolaou exam: a propensity score application using a complex sample inquiry

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    O câncer de colo de útero é a segunda doença mais comum entre mulheres em todo o mundo. O esfregaço de Papanicolaou é um teste simples que pode detectar a doença em um estágio precoce e curável. Embora indicado para todas as mulheres adultas, a cobertura do teste é inferior a 70% das mulheres brasileiras. Este estudo teve como objetivo avaliar se a posse de plano de saúde privado está associada à realização do exame de Papanicolaou. Foram analisados dados de 6.299 mulheres com 35 anos ou mais de idade, residentes no Rio de Janeiro, entrevistadas na Pesquisa Nacional por Amostra de Domicílios (PNAD) em 2003. A fim de minimizar a ocorrência de vieses, utilizamos o escore de propensão com a técnica de pareamento, levando em consideração todas as informações do desenho amostral na estimação dos escores (pesos amostrais, estratos e unidades primárias de amostragem). Uma subamostra de 2.348 mulheres foi então obtida, com covariáveis socioeconômicas e biológicas distribuídas igualmente entre os grupos com e sem cobertura de plano de saúde privado (1.174 pares). Os resultados com utilização de modelo de regressão logística mostraram que a chance de realizar o exame Papanicolaou é 26,1% maior (OR=1,261; p=0,096; IC 95%=[0,96; 1,66]) para mulheres com plano de saúde quando comparadas às mulheres sem cobertura de plano de saúde, no nível de significância de 10%. Os resultados indicam a necessidade da extensão do rastreio periódico do câncer de colo de útero para todas as mulheres, reduzindo as desigualdades ainda presentes nos dias atuais.<br>Cervical uterine cancer is the second most common malignancy affecting women worldwide. Papanicolaou smear is a simple screening test that can detect the disease at an early and curable stage. Although indicated to every adult woman, Pap smear screening covers less than 70% of Brazilian women. This study aimed to evaluate if private health care insurance coverage was associated with Papanicolaou smear screening. We analyzed data from 6,299 women aged 35 years or older, resident in Rio de Janeiro state, who had been interviewed in the National Household Sample Survey (PNAD) in 2003. In order to minimize the occurrence of biases, we utilized the propensity score matching method, considering all information from sample design in the scores estimation (sample weights, strata and primary sampling units). A sub-sample of 2,348 women was then obtained, with socioeconomic and biological covariates equally distributed between the groups with and without private health insurance coverage (1,174 pairs). Logistic regression model was then used and the results showed that the chance of Papanicolaou smear screening is 26.1% higher (OR=1.261; p=0,096; CI 95%= [0.96;1.66]) for women with health insurance coverage when compared to women without health insurance coverage at 10% of significance. The results indicate the need of extending periodic cervical cancer screening for all women, reducing the inequalities still present nowadays

    O Museu Goeldi e a pesquisa arqueológica: um panorama dos últimos dezessete anos (1991-2008)

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    Growing knowledge: an overview of Seed Plant diversity in Brazil

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    A social and ecological assessment of tropical land uses at multiple scales: the Sustainable Amazon Network

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    Characterisation of microbial attack on archaeological bone

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    As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved

    Growing knowledge: an overview of Seed Plant diversity in Brazil

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    Abstract An updated inventory of Brazilian seed plants is presented and offers important insights into the country's biodiversity. This work started in 2010, with the publication of the Plants and Fungi Catalogue, and has been updated since by more than 430 specialists working online. Brazil is home to 32,086 native Angiosperms and 23 native Gymnosperms, showing an increase of 3% in its species richness in relation to 2010. The Amazon Rainforest is the richest Brazilian biome for Gymnosperms, while the Atlantic Rainforest is the richest one for Angiosperms. There was a considerable increment in the number of species and endemism rates for biomes, except for the Amazon that showed a decrease of 2.5% of recorded endemics. However, well over half of Brazillian seed plant species (57.4%) is endemic to this territory. The proportion of life-forms varies among different biomes: trees are more expressive in the Amazon and Atlantic Rainforest biomes while herbs predominate in the Pampa, and lianas are more expressive in the Amazon, Atlantic Rainforest, and Pantanal. This compilation serves not only to quantify Brazilian biodiversity, but also to highlight areas where there information is lacking and to provide a framework for the challenge faced in conserving Brazil's unique and diverse flora
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