1,721,072 research outputs found
Perfil de progestinas fecais durante a gestação de veado-campeiro (Ozotoceros bezoarticus) no Pantanal.
Get PDFCo-orientador: Dr. Ubiratan Piovezan
Turismo cultural de pesca: pescadores amadores e profissionais-artesanais compartilhando experiências no Pantanal.
No full textFolder Formato eletrônico
Effects of reproductive seasonality on the excretion of fecal glucocorticoid metabolites in free-ranging Pampas Deer.
Get PDFUnderstanding how fecal glucocorticoid (GC) concentration is associated with reproduction in wild animals allows us to associate physiological stress with the costs of reproduction. Glucocorticoids are among the main stress-related hormones, and their secretion is strongly associated with reproductive seasonality. Using non-invasive methods (thereby avoiding causing stress), we used fecal GC metabolites (FGC) to test the hypothesis that the reproductive phase (mating, non-mating, gestation, and lactation) influences stress levels of the seasonally reproductive Pampas Deer (Ozotoceros bezoarticus). Furthermore, we compared FGC between sexes and between males of different antler statuses (velvet, hard, cast). During 1 year, in the Pantanal of Brazil, we collected 621 fresh fecal samples (327 from females, 294 from males) from which we estimated FGC using enzyme immunoassay (EIA). FGC concentrations varied by reproductive phase and antler status. Agonistic and courtship interactions associated with mating (i.e., fights between males, attempts to mount females), suggest that they influence FGC concentrations most strongly in both sexes. Females also had greater FGC concentrations during lactation, suggesting that this phase and parental care are also associated with increased physiological stress. In males, the association of FGC concentrations with antler status may be, in part, associated with photoperiod and testosterone secretion, both of which can trigger reproductive and agonistic behaviors. Finally, reproductive synchrony of the sexes causes similar FGC over time and suggests that environmental factors contribute as well. We show that non-invasive monitoring of glucocorticoid metabolites levels is an effective tool for detecting changes in the physiological stress response in Pampas Deer, suggesting that this tool will be useful for detecting changes in physiological stress caused by human disturbance, such as cattle ranching in Pantanal and similar disturbances elsewhere
Sombra e bem-estar animal.
Get PDFO estudo monitorou o consumo de água e busca por sombra de ovinos Santa Inês em Sergipe via colares GPS. Os animais buscaram sombra em 5,09% do tempo e hidratação em 9,66%, intensificando essas atividades em temperaturas elevadas (máximas de 51,9°C). Concluiu-se que o comportamento termorregulatório é diretamente influenciado pelo calor
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Serological and molecular investigation of the prevalence of Aujeszky's disease in feral swine (Sus scrofa) in the subregions of the Pantanal wetland, Brazil.
No full textThe feral swine (FS) originated from the domestic pig and is present throughout the Brazilian wetland plain (the Pantanal). Aujeszky?s disease (AD) was first serologically confirmed in the state of Mato Grosso do Sul (MS) in 2001; however, there was no viral confirmation. The aim of this study was to investigate antibodies against-SuHV-1 in the sera of feral swine in the studied areas, detect SuHV-1 through PCR and classify the viral genome. Among the 218 animals sampled, 186 were analyzed by ELISA, resulting in 88 (47.3%) reactive samples. In the serum neutralization test (SN), 57/179 (31.8%) samples presented antibodies against the AD virus (SuHV-1). By nested PCR, 104 DNA samples were extracted for analysis and confirmed with amplification of a fragment of glycoprotein B (gB) in five samples. The SuHV-1 was detected in 12 samples by using primers for glycoprotein E (gE) and viral genome was classified as Type I by ul44 partial sequencing. The amplification of SuHV-1 glycoprotein fragments in the fetuses of seropositive sows indicate that the vertical transmission contribute to maintain SuHV-1 in a free-living feral swine population. The origin of AD in the feral swine populations of the Pantanal is unknown, however, the determination of viral latency, the vertical transmission of the antigen by the amplification of SuHV-1 glycoprotein fragments in the fetuses of seropositive sows and genome typing contribute to the elucidation of the epidemiology of this disease in the wetlands of MS, Brazil
Métodos de captura, contenção e fixação de transmissores VHF em caititus (Tayassu tajacu).
No full textO objetivo do trabalho foi descrever metodologias para a captura, contenção e marcação de caititus. A captura foi realizada de duas formas: com laço e com armadilhas; os métodos de contenção considerados foram: físico e químico; transmissores de VHF foram afixados aos animais para monitoramento após captura utilizando colar de couro, colar de aço revestido ou brinco. As armadilhas medindo 1,5m x 0,8m x 0,6m, foram instaladas em locais com indícios da presença da espécie, durante a estação seca no Pantanal da Nhecolândia. Água em reservatórios plásticos nivelados à superfície do solo (25 litros) e pequenas quantidades de mandioca foram utilizadas como atrativo. As armadilhas instaladas nas condições descritas mostraram-se eficientes para atração e captura de animais da espécie. Embora o método do laço tenha se mostrado eficiente, seu uso certamente compromete o bem estar dos animais manejados, devido à presença de cães. Quando houve apenas a contenção física dos animais a mortalidade pós-captura foi menor. Dentre as opções testadas para anexar transmissores aos animais, o colar confeccionado manualmente utilizando sola de couro foi a mais viável
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