De Fraga R.,National Institute of Amazonian Research |
Magnusson W.E.,National Institute of Amazonian Research |
Abrahao C.R.,Setor Leste Universitario |
Sanaiotti T.,National Institute of Amazonian Research |
Lima A.P.,National Institute of Amazonian Research
Copeia | Year: 2013
Tropical rainforests often appear relatively homogeneous on satellite images, but responses to landscape characteristics may be found on finer scales if habitat characteristics are considered as continuous variables. In this study, we used 30 uniformly distributed plots and 16 plots beside streams to evaluate the effects of distance from stream, litter depth, altitude, slope, and tree density on abundance of Amazonian Lancehead Pitviper (Bothrops atrox). We estimated densities and probabilities of detection of snakes in riparian and upland plots in Reserva Ducke, Manaus, Amazonas, Brazil. Apparent density of individuals of B. atrox was about 6.4 times higher near streams, but the number of individuals in the landscape more than 10 m away from streams was about 3.9 times higher than the number of individuals within 10 m of streams. Movement data from two adult B. atrox evaluated by radio telemetry indicate that individuals can disperse out of plots and away from streams over a period of several months. Detectability of B. atrox varied little among riparian and upland plots, so differences in detectability are unlikely to be responsible for large differences in encounter rates of snakes between riparian and non-riparian areas. There were small differences in body size of individuals near streams and individuals far from streams. The distribution of B. atrox is not uniform within the forest. However, as with most other tropical-forest organisms studied to date, this species occurs across wide environmental gradients and shows only subtle habitat specificity. © 2013 by the American Society of Ichthyologists and Herpetologists.
Pereira D.,Federal University of Rio Grande do Sul |
Mansur M.C.D.,Federal University of Rio Grande do Sul |
Duarte L.D.S.,Federal University of Rio Grande do Sul |
de Oliveira A.S.,Federal University of Rio Grande do Sul |
And 12 more authors.
Hydrobiologia | Year: 2014
Based on literature review and malacological collections, 168 native freshwater bivalve and five invasive species have been recorded for 52 hydrographic regions in South America. The higher species richness has been detected in the South Atlantic, Uruguay, Paraguay, and Amazon Brazilian hydrographic regions. Presence or absence data were analysed by Principal Coordinate for Phylogeny-Weighted. The lineage Veneroida was more representative in hydrographic regions that are poorer in species and located West of South America. The Mycetopodidae and Hyriidae lineages were predominant in regions that are richest in species toward the East of the continent. The distribution of invasive species Limnoperna fortunei is not related to species richness in different hydrographic regions there. The species richness and its distribution patterns are closely associated with the geological history of the continent. The hydrographic regions present distinct phylogenetic and species composition regardless of the level of richness. Therefore, not only should the richness be considered to be a criterion for prioritizing areas for conservation, but also the phylogenetic diversity of communities engaged in services and functional aspects relevant to ecosystem maintenance. A plan to the management of this fauna according to particular ecological characteristics and human uses of hydrographic regions is needed. © 2013 Springer Science+Business Media Dordrecht.
de Freitas M.A.,Instituto Chico Mendes Of Conservacao Da Biodiversidade Icmbio |
Verissimo D.,University of Kent |
Uhlig V.,Setor Leste Universitario
Check List | Year: 2012
We present the first species list of squamate reptiles for the central region of the Chapada Diamantina, with a focus on the municipality of Mucugê, state of Bahia Brazil. The data provided were mostly collected in the Caraíbas estate, during vegetation clearing operations for agriculture. The remnant records were collected from roadkills encountered in Mucugê and neighboring municipalities. We found 64 species of squamate reptiles including 35 species of snakes, 25 of lizards and four of amphisbaenians. These records have already yielded three species descriptions with others likely to follow. This is evidence of the poorly documented herpetological diversity of the Chapada Diamantina. The present work highlights the need for further research and the potential of less traditional data sources such as roadkills to improve the knowledge of the herpetofauna of extensive and megadiverse countries like Brazil. © 2012 Check List and Authors.
Calil P.M.,Setor Leste Universitario |
de Oliveira L.F.C.,Federal University of Lavras |
Kliemann H.J.,Federal University of Goais |
de Oliveira V.A.,Instituto Brasileiro Of Geografia E Estatistica
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2012
The geomorphometric characterization and the land use of a watershed is important to understand the dynamics of the processes involving the hydrologic balance and sediment transport. In this context, the aim of this study was to characterize the morphometric attributes of the Upper Meia Ponte river watershed, trying to associate them with the predominant soil types and land use, and analyze the geometric similarity among the sub-basins that comprise it. At all stages of the study GIS programs was used, the IBGE topographic maps and Landsat TM5 satellite images and field surveys. The results showed that the sub-basin Sb2, predominantly Ultisols and Inceptisol, has a more branched drainage pattern and due to its shape and position in the landscape, is more prone to spikes in full in response to large rainfall intensities and is, therefore, more vulnerable to erosion and sediment transport.
Silva D.B.,Embrapa Recursos Geneticos e Biotecnologia |
Vieira R.F.,Embrapa Recursos Geneticos e Biotecnologia |
Cordeiro M.C.T.,Embrapa Recursos Geneticos e Biotecnologia |
Pereira E.B.C.,Setor Leste Universitario |
Pereira A.V.,Embrapa Transferencia de Tecnologia
Revista Brasileira de Plantas Medicinais | Year: 2011
Brosimum gaudichaudii Tréc. (mama-cadela) is a medicinal plant native to Cerrado and largely used in traditional medicine. The aim of this study was to verify the propagation of mama-cadela by means of root cutting under the effect of plant growth regulators and different substrates. In experiment 1, the effects of indole butyric acid (IBA) and naphthylacetic acid (NAA) at the concentration of 1000 mg L-1 were evaluated together with three substrates (S1 - sand; S2 -75% sand + 25% commercial substrate; S3 - 50% sand + 50% commercial substrate). In experiment 2, 4 IBA levels were evaluated: 0 - control; 250 mg L-1 (1.3426 mM); 500 mg L-1 (2.6853 mM) and 1000 mg L-1 (5.3706 mM), as well as 4 NAA levels: 0 - control; 250 mg L-1 (1.2295 mM); 500 mg L-1 (2.458 mM) and 1000 mg L-1 (4.918 mM). The adopted experimental design was in randomized blocks with three replicates of six cuttings per plot. In experiment 1, substrates containing sand and sand (75%) + commercial substrate (25%) promoted the highest average rooting indexes. Application of IBA (1000 mg L-1) led to increases of 30.8% and 51.3% in the average rooting indexes compared to control and NAA application, respectively. In experiment 2, there was a significant quadratic response of IBA application on the average rooting index. The level of 500 mg L-1 (2.6853 mM) promoted the highest average rooting index. There was no significant effect of NAA levels for the evaluated parameters. Similarly, there was no significant effect of substrates or hormones on the remaining parameters evaluated. These results show the potential use of mama-cadela root cuttings for the production of clonal seedlings of this species.
Freitas A.A.,Federal University of Goais |
Moura V.B.L.,Federal University of Goais |
Goncalves S.F.,Federal University of Goais |
Rodrigues A.A.,Federal University of Goais |
And 6 more authors.
Journal of Comparative Pathology | Year: 2012
The larval stage of Taenia crassiceps has been used to study human cysticercosis as these larvae have antigenic similarity to the cysticerci of Taenia solium. The aim of this study was to evaluate the histopathological and immunological changes that followed the inoculation of T. crassiceps cysticerci into the subcutaneous tissue of C57BL/6 mice. Microscopically, granulomas formed of neutrophils and macrophages developed at the sites of inoculation. The serum concentration of the cytokine interferon (IFN)-γ increased throughout the course of infection, while the serum concentration of interleukin-4 increased during the period of transition from the initial phase (7-30. days postinoculation [dpi]) to the late phase (60-90. dpi) of infection. Destruction of the parasite therefore appears to be associated with an increase in IFN-γ, suggesting that a type 1 immune response is important in the control of the parasite. © 2011 Elsevier Ltd.
De Araujo Almeida Gomes N.A.,Setor Leste Universitario |
Campos M.R.H.,Federal University of Goais |
Monego E.T.,Federal University of Goais
Revista de Nutricao | Year: 2012
Objective: This study aimed to monitor the cleanness of public school canteens of Goiás state, investigated during the study "Avaliação e Monitoramento da Qualidade dos Alimentos Oferecidos na Merenda Escolar" (Assessment and Monitoring of School Food Quality), Goiás, done from 2004 to 2007. Methods: Starting in 2004, a three-stage survey was done in public schools of Goiás. During the first phase, from 2004 to 2005, a checklist was used to assess the cleanness of schools canteens. In the second phase, from 2005 to 2007, interventions were done at the schools to train the relevant personnel. The third phase, done in 2010, consisted of monitoring the 18 school canteens that participated in the first phase using the same checklist to compare the sanitary quality of their meals in the two periods. The study was approved by the Universidade Federal de Goiás Research Ethics Committee. Results: The study schools complied only in part with the legislation, as the items personal hygiene, facility conditions, equipment and utensils, operational hygiene and processing were inadequate in 44.9% of the school food services investigated from 2004 to 2005 and in 37.1% of the ones investigated during the present study, jeopardizing the sanitary quality of the preparations. Conclusion: Comparison of the two phases of this investigation showed that only operational hygiene improved. These results reinforce the need of improving the pertinent school facilities and providing periodical training to those involved in food preparation to improve the sanitary quality of school foods.
The impact of low-level laser therapy on oral mucositis and quality of life in patients undergoing hematopoietic stem cell transplantation using the oral health impact profile and the functional assessment of cancer therapy-bone marrow transplantation questionnaires
Silva L.C.,Federal University of Goais |
Sacono N.T.,Federal University of Goais |
Freire M.D.C.M.,Federal University of Goais |
Costa L.R.,Federal University of Goais |
And 2 more authors.
Photomedicine and Laser Surgery | Year: 2015
Objective: The aim of this study was to assess the impact of low-level laser therapy (LLLT) on oral mucositis (OM) and quality of life (QoL) of hematopoietic stem cell transplantation (HSCT) patients. Background data: OM related to high-dose chemotherapy is often associated with increased risk of mortality and impaired QoL in HSCT patients. LLLT has shown promising effects in the prevention and treatment of chemotherapy-induced OM. There is a dearth of literature focused on subjective aspects involving OM and QoL in patients receiving LLLT. Methods: Thirty-nine patients were randomly assigned to two groups: control (n = 19) and laser (n = 20). LLLT was performed from the 1st day of the conditioning regimen until day 7 post-HSCT (D + 7). OM severity was evaluated in all patients [World Health Organization (WHO) scale]. A blinded observer collected subjective outcomes from patients on admission (AD), D+ 7 and at discharge (DC). QoL was assessed using the Oral Health Impact Profile (OHIP-14) and the Functional Assessment of Cancer Therapy-Bone Marrow Transplantation (FACT-BMT) questionnaires. Statistical analyses included descriptive, bivariate and multivariate (generalized estimating equation) tests. Results: The overall FACT-BMT ( p = 0.074) and OHIP-14 ( p = 0.749) scores were not associated with the use of laser therapy. Both instruments showed a deterioration in QoL for the whole sample on D+ 7. The laser group presented less severe OM than the control group ( p < 0.001). Conclusions: LLLT did not influence the oral and general health-related QoL of patients undergoing HSCT, although it was clinically effective in reducing the severity of chemotherapy-induced OM. © Mary Ann Liebert, Inc.
Melo M.,Federal University of Goais |
Fava F.,Federal University of Goais |
Pinto H.B.A.,Setor Leste Universitario |
Bastos R.P.,Federal University of Goais |
Nomura F.,Federal University of Goais
Biota Neotropica | Year: 2013
The Cerrado is a tropical savannah with a diversified anuran assemblage, with 209 to 271 known species, of which approximately 51% are endemic. In this study, we report results of an anuran survey performed in the Extractivist Reserve of the Lago do Cedro, located in the northwestern region of the state of Goiás, Brazil. In this area, we recorded 36 anuran species, distributed in five families, from which five species are Cerrado endemics. This high species richness found in the Extractivist Reserve of the Lago do Cedro could be explain by the different vegetational types within the reserve boundaries that promote a high local heterogeneity. Species richness and representativeness per family are similar to other assemblages reported for different areas in the Cerrado domain, being the local anuran assemblage composed by generalist and widely distributed species. The families Hylidae and Leptodactylidae are the most diversified in the studied area, a common pattern found in neotropical assemblages. The Extractivist Reserve Lago do Cedro is an important area for Cerrado conservation because of the anuran diversity and geographic location, which allows the connection among other protected areas within the Araguaia basin.
Ferreira L.D.B.,Setor Leste Universitario |
Fernandes E.P.,Federal University of Goais |
Ferreira M.D.,Federal University of Goais |
Leandro W.M.,Federal University of Goais
Revista Brasileirade Ciencias Agrarias | Year: 2012
The chrysantemum ornamental potential is expressed by meeting its nutritional requirements. This nutrient demand may vary both during the crop cycle and between cultivars. This paper describes the macronutrients accumulation in the following vase-grown chrysanthemum cultivars: White Diamond -WD; Eugene Yellow - EY; and Durban -DB. The experiment was conducted under nursery farm conditions in Goianira, Goiás, Brazil, between August and October, 2007, using a randomized experimental design in a 3 × 5 factorial scheme, with three cultivars, five growth stages and five replications. Data were collected at 20, 34, 48, 62 and 76 days after planting (DAP). The accumulation of N, P and K in leaves, stems, inflorescences and the global sum of its parts was quantified. The nutrients accumulation in different plant organs differed among cultivars. For cultivar WD, N and K accumulated in greater amounts in the inflorescences and P, in the leaves. For EY, the highest accumulation of N and K was in the leaves and for P, in the stems. For cultivar DB, the most expressive accumulation of N, P and K was observed in the inflorescences. For all the macronutrients assessed, accumulation increased at each time point, reaching a maximum at 76 DAP. The accumulation scale for macronutrients was K > N > P.