997 resultados para Distribuição pelo hábitat


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With the emergence of areas degraded by human activities, the chemical soil properties and silvicultural characters became important in understanding the succession process of tree species and planning of landscape restoration. This study aimed to evaluate the distribution of tree species in areas with different levels of human disturbance, relating silvicultural aspects to the soil chemical properties and characterizing the type of vegetation, for integration of genetic conservation program in situ. The study was conducted in the area of Research and Extension Experimental Farm (FEPE) from UNESP, Ilha Solteira, in Selviria - MS. Through transect, 64 plots were marked 50 m equidistant with dimensions of 10 x 10 m, where: 29 plots were in an highly disturbed area (HDA), five in moderately disturbed area (MDA), 15 in lowly disturbed area (LDA), six in riparian stream of Vestia river (Riparian Forest) and nine in the legal reserve. Soil samples were collected at two depths (0.0 to 0.20 and 0.20 to 0.40 m) for the chemical analysis and the assessment of silvicultural characters, such as height, diameter at breast height (DBH) and shape. The study of the natural distribution of tree species and edaphic condition in the different evaluated areas showed that: the soil chemical properties associated with the level of human disturbance and conservation of the areas are influencing the natural occurrence, species diversity and development of the trees. Height, DBH and shape are good indicators to assess the growth of the tree community and relate them to soil chemical properties; LDA and legal reserve presented higher natural occurrence, number of individuals and number of species. In the riparian forest, basal area values, height, shape and chemical soil properties were higher. From the 97 species found, six have the potential to be used in a program of genetic conservation in situ. They are: Astronium fraxinifolium, Terminalia argentea, Curatella americana, Cupania vernalis, Qualea jundiahy and Andira cuyabensis.

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The aim of this study was to evaluate the prevalence and seasonal distribution of the main parasite species in Amazonian ornamental cichlids that affect their trade. The study was conducted from August 2007 to September 2009. We sampled 3042 specimens from 9 different species, of which 9.47% had at least one type of external parasite. 81.25% of the cases occurred in the dry season. Crenicichla anthurus (28.57%) was the most parasitized, followed by Aequidens diadema (26.32%), Pterophyllum scalare (22.69%), Cichlasoma sp. (9.52%), Apistogramma sp. (3.88%) and Symphysodon aequifasciatus (3.66%). Monogenea was the most abundant group of parasites, occurring in 66.67% of the cases, of which 96.88% occurred in the dry season. This parasite infested 95.68% of Pterophyllum scalare, 76.67% of Apistogramma sp, 33.33% of Cichlasoma sp. and 23.81% of Symphysodon aequifasciatus cases. Ichthyophthirius multifiliis infested 100% of Aequidens diadema, 76.19% of Symphysodon aequifasciatus, 66.67% of Cichlasoma sp, 41.67% of Crenicichla anthurus and 23.33% of Apistogramma sp cases. Myxosporidia infested 58.33% of Crenicichla anthurus. Trichodina infested 4.32% of Pterophyllum scalare. The prevalence of these parasites is related to the season, preferred habitat, fish behavior, individual susceptibility and handling of animals during transportation by fishermen.

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Oeceoclades aculate (Lindl.) Lindl., an invasive orchid, was analyzed as to its reproductive phenology and spatial distribution, correlation between abundance of mature and immature individuals, and verifying these with microclimate patterns in the Cerrado (savanna-like vegetation) of Mogi Guacu, Sao Paulo State, Brazil. For the reproductive phenology 100 plants were followed and the distribution pattern was identified by the Morisita Index (MI) and the Variance Ratio/Average (R) in 20 plots of 20x10m, reduced to 10x10m afterwards. The phenology presented seasonality, with flowering from November to February, fructification from February to June, and dehiscence from June to July. Mature and immature individuals aggregated and correlated to each other, indicating dependence between the ontogenetic stages. The luminosity was the preponderant microclimatic factor in the allocation of plants. Seasonal climatic changes and intensity of anthropogenic disturbances seem to be more important for the establishment of the species than microclimate.

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This study aimed to determine the prevalence and geographical distribution as well as the factors and areas of risk associated with bovine cysticercosis in the State of Sao Paulo. 34.443 cattle, males and females with ages from 18 to 60 months were inspected. The animals were from 97 cities in the state of Sao Paulo and identified and slaughtered in the period October 2010 to August 2011, in a refrigerator located in Ipua - SP, under the supervision of SIF 1387. The state of Sao Paulo was divided into regional centers, and the data of the municipalities belonging to its core, were grouped according to the Department of Agriculture and Food Supply of Sao Paulo, totaling 13 cores studied. Based on these results, we can conclude that of the 97 cities analyzed, cattle were found positive for the disease in 86. The average prevalence of bovine cysticercosis in the state of Sao Paulo was 4.80 %, while the core inflation Franca and Barretos were the ones with the highest number of cases illness during the analysis period. Moreover, the largest number of cases in these core coincided with the lowest human development index covering education, with the largest acreage of coffee (core Franca) and also as the largest area of cane sugar grown (core Barretos) in these locations, which in turn may indicate that the presence of labor, temporary labor in rural areas, combined with socioeconomic/cultural factors might contribute to the spread and establishment of bovine cysticercosis in these areas.

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A família Caprimulgidae apresenta distribuição cosmopolita, porém as regiões mais quentes, como os neotrópicos, detêm a maior diversidade de espécies. Ocorrem em quase todos os tipos de hábitat. São aves basicamente insetívoras, de hábitos noturnos (maioria das espécies). Os conhecimentos a cerca desta família são, ainda, escassos. O bacurau-chintã (Hydropsalis parvula) pertence a esta família de aves e, do mesmo modo, pouco se sabe sobre sua biologia. O presente estudo teve o intuito de trazer novas informações sobre comportamento de forrageamento, uso de poleiros e a distribuição da espécie no Brasil. Os estudos de campo foram realizados durante o segundo semestre dos anos de 2011 a 2013, no período noturno, em uma área situada aos fundos do campus da UNESP de Rio Claro, SP. Os aspectos referentes à forrageamento e uso de poleiros foram anotados em planilhas de campo, sendo posteriormente compilados em planilhas eletrônicas e analisados em software de análises estatísticas. A distribuição da espécie foi estudada por meio da compilação de registros em meios eletrônicos (bases de dados e buscas online) referências bibliográficas e registros cedidos por terceiros. As datas de chegada e saída da espécie para a área de estudo foram registradas com o objetivo de identificar o período de permanência da mesma no local, já que a espécie é localmente migratória. Foram observados: 55 eventos de forrageamento, dos quais 45 foram considerados independentes e incluídos nas análises; e 58 eventos de uso de poleiro (todos incluídos nas análises). Foram compilados 767 registros da espécie, distribuídos por todos os estados brasileiros e um mapa de distribuição foi elaborado. As datas de chegada da espécie à área de estudo foram obtidas para os anos de 2009 a 2014 e as de saída para os anos de 2010 a 2012. A espécie raramente usa poleiros verticais preferindo os horizontais ou inclinados; vocaliza com mais...

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Em cativeiro, Pinguins-de-Magalhães, Spheniscus magellanicus (Forster, 1781) (Sphenisciformes, Aves) são descritos como sedentários, obesos, pouco interativos e apáticos, costumam apresentar pododermatite e baixo índice de reprodução. Atualmente, existem poucos estudos relacionados a pinguins de cativeiro, dificultando o trabalho de manejo e conservação. Diferentes parâmetros podem ser utilizados para avaliação do bem estar animal, dentre eles a diversidade comportamental e repertório típico da espécie. O presente estudo objetivou avaliar o orçamento temporal e o padrão de distribuição do comportamento de um grupo de seis animais ao longo do dia e em épocas do ano distintas, e relacionar os comportamentos aos indicadores do estado de saúde dos pinguins. Foram estudados animais residentes no Parque Escola SABINA, em Santo André, SP, nos meses de janeiro, março, maio e julho de 2014. O comportamento dos animais locais foi observado por dois dias nos seguintes horários: 8h-8h50min, 9h25- 10h15min, 10h50min-11h40, 12h20-13h10, 13h40-14h30, 15h05-15h55. As lesões de pododermatite foram classificadas seguindo o escore padronizado de 1 a 3 para a classificação de pododermatite nos pinguins. Foi observado que nenhum animal apresentou lesões avançadas de calosidades nas patas, porém quatro demonstraram evolução no bumblefoot. Os animais passaram mais tempo nos seguintes comportamentos: repouso em pé, repouso deitado, nadar, banho, arrumar penas. A duração dos comportamentos variou entre os meses: no mês de julho os pinguins passaram mais tempo nadando e banhando-se e houve uma tendência de redução do repouso. A distribuição dos comportamentos entre os períodos da manhã e da tarde foi distinta dependendo do mês. Em geral, os pinguins passaram mais tempo banhando-se e nadando pela manhã e em repouso à tarde. Dessa forma, os animais apresentaram variação sazonal que seria esperada em condição de vida livre,...

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The anisocytosis is a hematologic finding that is routinely evaluated from the mean corpuscular volume (MCV) and erythrocyte morphology in assessment of blood smears. The present study tested the hypothesis that the coefficient of variation of the red cell distribution width (RDW-CV - Red Cell Distribution Width) is a more sensitive parameter in the evaluation of hematologic anisocytosis, considering different levels of anemia in dogs and reticulocytosis. Blood counts of 102 anemic dogs and 353 control dogs made by automated hematology counter. The anemic animals were grouped according to the degree of anemia (mild, moderate and severe) and also as medullary response by manual reticulocyte count (none, weak, moderate and strong). The RDW-CV was different to the animal groups with moderate and severe anemia, which were higher, compared to the control group and mild anemia. The highest average value of RDW-CV (14.45%) occurred in patients with severe anemia. In the control group had higher MCV value that anemic animals , this may be due to a mixed population of erythrocytes in that group of animals. However, there wasn’t difference in MCV between different degrees of anemia and reticulocytosis. Therefore, the RDW is a more sensitive indicator anisocytosis than VCM and its value is directly proportional to the degree of anemia and reticulocytosis; when combined, the sensitivity for detection of anisocytosis in anemic dogs is greater. The use of reference values established by the clinical laboratory itself is mighty important.

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Objective: the aim of this study was to evaluate the influence of occlusal veneering material in single fixed implant-supported crowns through the 3-D finite element method. Material and methods: Four models were fabricated using the Rhinoceros 4.0, SolidWorks, and InVesalius softwares. Each model represented a block of mandibular bone with an external hexagon implant of 5 mm x 10 mm and different veneering materials including NiCr (1), porcelain (2), composite resin (3), and acrylic resin (4). An axial load of 200 N and an oblique load of 100 N were applied. Results: model (2) with porcelain veneering presented a lower stress concentration for the NiCr framework, followed by the composite resin and acrylic resin. The stress distribution to the implant and bone tissue was similar for all models. Conclusions: there is no difference of stress distribution to the implant and supporting structures by varying the veneering material of a single implant-supported prosthesis.