12 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

    Get PDF

    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

    A922 Sequential measurement of 1 hour creatinine clearance (1-CRCL) in critically ill patients at risk of acute kidney injury (AKI)

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    Epidemiology of alcohol consumption and related factors in college students of health sciences of Maceió

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    Made available in DSpace on 2011-05-04T12:36:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2009Fundação Oswaldo Cruz. Escola Nacional de Saúde Pública Sergio Arouca. Rio de Janeiro, RJ, Brasil.O consumo de bebidas alcoólicas, o tabaco e o comportamento sexual de risco são alguns dos principais fatores relacionados com o estado de saúde dos indivíduos e das populações. Na atualidade, constituem um enorme problema de saúde pública na maioria dos países, pelos efeitos nocivos que produzem e suas conseqüências de ordem física, mental e social. O consumo de substâncias, sobretudo de álcool e cigarros, encontra-se presente, e é frequentemente estimulado, em anúncios comerciais, filmes, letras de música e outros meios de comunicação de massa. O objetivo deste estudo é descrever o perfil epidemiológico do consumo de álcool e fatores relacionados em estudantes universitários das Ciências da Saúde de Maceió/Alagoas. Participaram 608 estudantes de ambos os sexos, com idades entre 17 e 36 anos. Os dados foram obtidos mediante a aplicação de um questionário autopreenchido,adaptado a esta população. Os grupos que apresentaram maior consumo de álcool, especialmente o abuso de álcool, foram os estudantes universitários do sexo masculino (RP = 2,90), os de maior idade (RP = 3,24), os naturais de outras cidades (RP = 1,77), os fumantes (RP = 1,87) e aqueles que estavam expostos a publicidade do álcool (RP = 3,94). A prevalência de uso na vida de álcool foi de 90,4 por cento. O abuso de álcool teve uma prevalência de 18,3 por cento nos homens e 6,1 por cento nas mulheres. A média de consumo de álcool foi de 0,98 unidades/dia, com um consumo muito mais elevado no fim de semana (1,98 unidades/dia). A cerveja, os combinados e o vinho foram as bebidas mais consumidas. Por se tratar de um grupo de universitários, em especial por serem da área da saúde, é esperado um melhor entendimento das implicações do uso e abuso de álcool, do tabagismo e do comportamento sexual. Novas abordagens curriculares são necessárias, as quais deverão buscar estratégias mais contundentes e apropriadas para estes universitários, aumentando a chance de serem melhor assimiladas e, possivelmente, que práticas saudáveis sejam adotadas e recomendadas quando eles tornarem-se profissionais da saúde.The consumption of alcoholic beverages, tobacco products and sexual activity are major factors related to the health of individuals and populations. At present, they constitute major public health problems in most countries, for their harmful effects on physical, mental and social spheres. The consumption of substances, particularly alcohol and cigarettes, is often encouraged, in advertisement, movies, music lyrics and other means of mass communication. The aim of this study is to analyze the epidemiological profile of alcohol consumption and related factors in college students of Health Sciences of Maceió / Alagoas. Study subjects comprised 608 students of both sexes, aged between 17 and 36 years. The data were obtained by applying a selfadministered questionnaire, which targeted university students. The groups that had higher alcohol consumption, especially alcohol abuse, were the male college students (RP = 2.90), the older subjects (RP = 3.24), the natives of other cities (RP = 1.77), the smokers (RP = 1.87) and those who were exposed to alcohol advertising (RP = 3.94). The prevalence of lifetime use of alcohol was 90.4%. The abuse of alcohol had a prevalence of 18.3% in men and 6.1% in women. The average consumption of alcohol was 0.98 units / day, with a much higher consumption over the weekend (1.98 units / day). Beer, the combination of alcohol and soda, and wine were the most widely consumed beverages. As students pursuing degrees in health care, it is fair to expect a better understanding of the implications of alcohol consumption, smoking and sexual behavior. New educational approaches are needed, with more emphasis on appropriate strategies to increase the knowledge and, possibly, the adoption of healthy practices and their dissemination when they become health professionals

    Consumo de álcool entre estudantes universitários Alcohol consumption by university students

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    O consumo de álcool é estimulado pela mídia apesar dos riscos inerentes à saúde. Estudantes da área de saúde serão os futuros profissionais a orientar a população ou servir de exemplo. O objetivo deste estudo foi analisar o consumo de álcool e fatores relacionados nestes estudantes. Participaram 608 estudantes universitários de Maceió, Alagoas, Brasil, de ambos os sexos, mediante a aplicação de um questionário autopreenchível. Foram empregados modelos de regressão de Poisson e logística multinomial. A prevalência de uso na vida de álcool foi de 90,4%. O abuso de álcool teve uma prevalência de 18,3% nos homens e 6,1% nas mulheres. Os que apresentaram maior consumo e abuso de álcool foram os do sexo masculino, de maior idade, naturais de outras cidades, fumantes e os expostos à publicidade do álcool. Os resultados deste estudo indicam uma vulnerabilidade destes jovens para condutas com risco para a saúde. Seu papel social futuro suscita necessidades distintas de formação universitária para que possam atuar profissionalmente nesta área.<br>Consumption of alcoholic beverages is widely encouraged by the mass media, despite the related health risks. Today's students in the health fields are the professionals of tomorrow who will be providing advice and serving as role models for patients. The aim of this study was to analyze alcohol consumption and related factors among these students. A total of 608 male and female university students from Maceió, the capital of Alagoas State, Brazil, completed a self-administered questionnaire. Data analysis included Poisson regression and multinomial logistic models. Prevalence of lifetime use of alcohol was 90.4%. Prevalence of alcohol abuse was 18.3% in men and 6.1% in women. Heavier alcohol consumption and alcohol abuse were observed in males, older students, non-natives of Maceió, smokers, and those exposed to alcohol advertising. The results emphasized the vulnerability of these young people to risky health behaviors. Their future social role highlights distinct needs in their university education to enable them to act professionally in this area

    Neotropical xenarthrans: a dataset of occurrence of xenarthran species in the Neotropics.

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    International audienceXenarthrans—anteaters, sloths, and armadillos—have essential functions forecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosys-tem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts withdomestic dogs, these species have been threatened locally, regionally, or even across their fulldistribution ranges. The Neotropics harbor 21 species of armadillos, 10 anteaters, and 6 sloths.Our data set includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae(3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data onDasypus pilo-sus(Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized,but new genetic studies have revealed that the group is represented by seven species. In thisdata paper, we compiled a total of 42,528 records of 31 species, represented by occurrence andquantitative data, totaling 24,847 unique georeferenced records. The geographic range is fromthe southern United States, Mexico, and Caribbean countries at the northern portion of theNeotropics, to the austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regardinganteaters,Myrmecophaga tridactylahas the most records (n=5,941), andCyclopessp. havethe fewest (n=240). The armadillo species with the most data isDasypus novemcinctus(n=11,588), and the fewest data are recorded forCalyptophractus retusus(n=33). Withregard to sloth species,Bradypus variegatushas the most records (n=962), andBradypus pyg-maeushas the fewest (n=12). Our main objective with Neotropical Xenarthrans is to makeoccurrence and quantitative data available to facilitate more ecological research, particularly ifwe integrate the xenarthran data with other data sets of Neotropical Series that will become available very soon (i.e., Neotropical Carnivores, Neotropical Invasive Mammals, andNeotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure,habitat loss, fragmentation effects, species invasion, and climate change effects will be possiblewith the Neotropical Xenarthrans data set. Please cite this data paper when using its data inpublications. We also request that researchers and teachers inform us of how they are usingthese data

    NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics

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    Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data

    NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics

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    Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropical region: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; and Ursidae. Herein, we include published and unpublished data on native terrestrial Neotropical carnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTROPICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from 35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data were obtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organizations, and private consultants. Data were collected using several methods including camera trapping, museum collections, roadkill, line transect, and opportunistic records. Literature (peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated in this compilation. Most of the data set consists of detection data entries (n = 79,343; 79.7%) but also includes non-detection data (n = 20,262; 20.3%). Of those, 43.3% also include count data (n = 43,151). The information available in NEOTROPICAL CARNIVORES will contribute to macroecological, ecological, and conservation questions in multiple spatio-temporal perspectives. As carnivores play key roles in trophic interactions, a better understanding of their distribution and habitat requirements are essential to establish conservation management plans and safeguard the future ecological health of Neotropical ecosystems. Our data paper, combined with other large-scale data sets, has great potential to clarify species distribution and related ecological processes within the Neotropics. There are no copyright restrictions and no restriction for using data from this data paper, as long as the data paper is cited as the source of the information used. We also request that users inform us of how they intend to use the data
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