scholarly journals Horário Ideal para Coleta de Gafanhotos na Depressão Central no Rio Grande do Sul

2014 ◽  
Vol 7 (2) ◽  
pp. 93-98
Author(s):  
Nathália Leal Carvalho ◽  
Ervandil Correa Costa ◽  
Juliana Garlet ◽  
Danilo Boanerges Souza ◽  
Jardel Boscardin
Keyword(s):  
Wind Speed ◽  
Relative Humidity ◽  
Environmental Factors ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Plastic Bags ◽  
Native Grassland ◽  
Higher Temperature ◽  
Made In ◽  
Main Factor

O objetivo deste estudo foi avaliar a influência dos principais fatores ambientais no comportamento de acridóideos, bem como o horário ideal para coleta de espécimes deste grupo. As coletas foram realizadas em uma área de campo nativo, e para a captura dos insetos utilizou-se uma rede de coleta adaptada, com a qual se percorreu a distância de 20m, nos horários: 7:30, 9:30, 11:30, 13:30, 15:30 e 17:30, sendo que em cada um dos horários coletaram-se 10 amostras. Durante a coleta, foram medidas também, as variáveis meteorológicas: pressão atmosférica, velocidade do vento, temperatura média do ar, umidade relativa do ar e luminosidade, em cada horário de coleta. Os exemplares coletados foram acondicionados em sacos plásticos e levados ao Laboratório de Entomologia da UFSM. Após a separação e montagem os espécimes, foram encaminhados ao Laboratório de Entomologia da Faculdade de Biociências da PUCRS, onde foram identificados em nível de espécie. Foram coletados 568 exemplares adultos, distribuídos em vinte e duas espécies, pertencentes a dezoito gêneros e três famílias Acrididae, Proscopiidae e Romaleidae. Neste estudo observou-se que o melhor horário de coleta para áreas de campo foi as 13:30, onde observou-se maior temperatura, fator principal que possibilitou a coleta de número superior de exemplares e maior diversidade das espécies. Ideal Time to Collect Grasshoppers in the Central Depression in Rio Grande do Sul Abstract. The aim of this study was to evaluate the influence of the environmental factors on the behavior of acridóideos as well as ideal time for collecting specimens of this group. The collections were made in an area of native grassland, and to capture the insects used an adapted collection network, with which it covered the distance of 20m, in times: 7:30, 9:30, 11:30 , 13:30, 15:30 and 17:30, and in each of the schedules were collected 10 samples.  In the collects, measures were also meteorological variables: air pressure, wind speed, mean air temperature, relative humidity and luminosity in each hour of collection. The collected samples were placed in plastic bags and taken to the Laboratory of Entomology UFSM. After separation and assembly were sent to the Laboratory of Entomology, Faculty of Biosciences, PUCRS, where Acridoidea were identified by Prof. Maria Katia Matiotti Coast to the taxonomic category of species. We collected 568 adult specimens, distributed in twenty two species, belonging to eighteen genera and three families Acrididae, Proscopiidae and Romaleidae. During the study it was observed that the best time for collecting field areas was 13:30, where we observed a higher temperature, the main factor that enabled the collection of higher number of copies and greater diversity of species.

scholarly journals O FATOR DE VISÃO DO CÉU E SUA INFLUÊNCIA SOBRE AS CARACTERÍSTICAS TÉRMICO-HIGROMÉTRICAS INTRAURBANAS EM PELOTAS/RS, BRASIL / The Sky View Factor and its Influence on the Intra-Urban Thermal-Hygrometric Features in Pelotas City-Rio Grande do Sul State...

2015 ◽  
Vol 1 (1) ◽  
pp. 160 ◽  
Author(s):  
Erika Colischonn ◽  
Caio Vinícius De Oliveira Ferreira
Keyword(s):  
Relative Humidity ◽  
Urban Climate ◽  
Rio Grande ◽  
View Factor ◽  
Rio Grande Do Sul ◽  
Sky View Factor ◽  
Several Variables ◽  
Average Relative Humidity ◽  
Calculated Average ◽  
Made In

O clima urbano é resultado das ações de diversas variáveis, entre elas o fator de visão do céu (FVC). Este artigo apresenta incialmente a metodologia utilizada para calcular o fator de visão do céu em dez postos de coleta de temperatura e umidade do ar na cidade de Pelotas-RS e, na sequência, um estudo comparativo do comportamento da temperatura e da umidade relativa do ar entre estes mesmos dez locais. Os dados resultam de três períodos de registro no ano de 2014: o primeiro em agosto/setembro, o segundo em novembro, o terceiro em dezembro. Cada ponto de coleta consistiu num pequeno coletor eletrônico de dados de temperatura e umidade relativa do ar (ONSET - U23-001), disposto dentro de um abrigo fixo a um tripé distante 1,5 metros do chão, que registrou dados de 30 em 30 minutos. Os resultados mostram relação entre o microclima e o FVC. Nos levantamentos considerados os registros nos locais de maior obstrução foram em mais de 70% das vezes superiores à média. As áreas menos obstruídas também foram aquelas que apresentaram temperaturas mais baixas que a média. Os locais mais frios que a média também apresentaram umidade relativa do ar mais alta que a média.Palavras-chave: Fator de visão do céu, temperatura e umidade do ar. The Sky View Factor and its Influence on the Intra-Urban Thermal-Hygrometric Features in Pelotas City - Rio Grande do Sul State, BrazilABSTRACTUrban climate is the result from several variables, among them, there is the sky view factor (SVF). This article identifies the sky view factor (SVF) use in an urban climate study made in Pelotas, Brazil. The research compares the temperature and relative humidity behaviors in ten various sampling stations, based on data collected from them. The results were obtained from three recording periods held in 2014: the first from August/September, the second from November and the third from December. Each station was equipped with a temperature and humidity datalogging device (ONSET - U23 001). They were placed inside a radiation shield that was attatched to a tripod 1.5m above the ground, where each device would register data every 30 minutes. The results unveiled relations between the SVF and the microclimate. From the samples that were taken in consideration, places with high obstruction were, 70% of the time, above the calculated average. The places with low obstruction were also where the biggest amount of below-average data was found. In addition, the places that were colder than average were the ones presenting higher than average relative humidity rates.Key-words: sky view factor, air temperature, relative humidity.

scholarly journals AVALIAÇÃO DE DIFERENTES ESQUEMAS DE CAMADA LIMITE PARA SIMULAÇÃO E PREVISÃO DE EVENTOS DE NEVOEIRO NO RIO GRANDE DO SUL

2017 ◽  
Vol 39 (2) ◽  
pp. 451
Author(s):  
Nórton Franciscatto De Paula ◽  
Franciano Scremin Puhales ◽  
Gabriele Golart Silva ◽  
Jéssica Melo Mintegui ◽  
Vagner Anabor ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Wind Speed ◽  
Relative Humidity ◽  
Boundary Conditions ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Initial And Boundary Conditions ◽  
Santa Maria

In this work we used two boundary layer schemes to reproduce numerically a persistent fog event in Santa Maria, Rio Grande do Sul. The model employed was WRF using, as initial and boundary conditions, GFS data. The boundary layer employed schemes were the Mellor-Yamada-Janic (MYJ) and Yonsei University (YSU). Generally, boundary layer overestimate of wind speed values schemes 10m and represent relatively well temperature. However, the relative humidity does not represent the fog condition, not reaching saturation in some cases. When saturation is achieved the same if not properly maintained during the occurrence of the event.

scholarly journals Use of palmae wax hydrocarbon fractions as chemotaxonomical markers in Butia and Syagrus

2009 ◽  
Vol 69 (2) ◽  
pp. 353-361 ◽  
Author(s):  
N. Paroul ◽  
RL. Cansian ◽  
M. Rossato ◽  
GF. Pauletti ◽  
LA. Serafini ◽  
...  
Keyword(s):  
Geographical Distribution ◽  
Rio Grande ◽  
Statistical Analyses ◽  
Rio Grande Do Sul ◽  
Chemotaxonomic Markers ◽  
Main Components ◽  
Made In

The wax hydrocarbon fractions of native Butia and Syagrus species collected from Palms in different regions of the of Rio Grande do Sul state (Brazil) and in Rocha (Uruguay) were analyzed to evaluate their potential as chemotaxonomic markers. The wax was extracted with chloroform and the resulting wax was fractionated by preparative TLC. The hydrocarbon fractions were analyzed by GC-MS. Statistical analyses were completed with the Statistica 5.0 program. The total crude wax yields averaged 0.31% w.w-1 dried leaves for Butia samples and 0.28% for Syagrus samples. The linear hydrocarbons represented on average 15% of the total waxes in the case of Butia samples and 13.7% in Syagrus samples. Hentriacontane and triacontane were the main components of all samples. The comparison of the means showed significant differences among Butia and Syagrus samples, and amongst Butia samples collected in different localities. In the case of the Syagrus collections no consistent groupings could be made. In the case of Butia samples the formation of three groupings could be observed, which were consistent with the species described for their geographical distribution. These results are discussed in the paper.

scholarly journals Modelização do clima urbano de Santa Maria, RS

1986 ◽  
Vol 8 (8) ◽  
pp. 53
Author(s):  
Maria Da Graça Barros Sartori
Keyword(s):  
Relative Humidity ◽  
Atmospheric Circulation ◽  
Urban Climate ◽  
Rio Grande ◽  
Meteorological Station ◽  
The State ◽  
Local Analysis ◽  
Rio Grande Do Sul ◽  
Local Climate ◽  
Santa Maria

Urbanization causes changes in the local climate by altering the atmosphere of a city and creating the urban climate. Attempting to verify the existence of urban climate in Santa Maria, climatic analysis was made of temperature, wind and relative humidity of data gathered in the field as well as from the meteorological station, in relaction to the regional atmospheric circulation analysis. The results of this study and samples from national and international finding, together with the local analysis of geoecological and geourban components, help in presenting a simulating model of the urban climate of Santa Maria located in the center of the State of Rio Grande do Sul, Brazil.

scholarly journals Ground-dwelling ant fauna of sites with high levels of copper

2004 ◽  
Vol 64 (1) ◽  
pp. 33-39 ◽  
Author(s):  
E. Diehl ◽  
C. E. D. Sanhudo ◽  
Ed. Diehl-Fleig
Keyword(s):  
Heavy Metals ◽  
Environmental Factors ◽  
Conservation Status ◽  
Plant Cover ◽  
Rio Grande ◽  
Control Site ◽  
Environmental Conservation ◽  
Rio Grande Do Sul ◽  
High Level

Richness and diversity of ant species are related to environmental factors such as vegetation, soil, presence of heavy metals, and insecticides, which allow the use of the assemblage members as terrestrial indicators of environmental conservation status. This study presents the results of ground ants surveyed in Minas do Camaquã in the municipality of Caçapava do Sul (Camaquã Basin), State of Rio Grande do Sul. Collections were performed in four sites, with high levels of copper in the soil, three of which - a mine, a liquid reject, and a solid reject -, had sparse or no plant cover, and one site where Pinus has been used for rehabilitation. Parque das Guaritas was the control site, since it presented normal levels of copper and a dense savanna cover. For each site, three transect lines extending 100 m were draw, and at each 10 m sardine baits were distributed; after two hours the ants present were collected. Hand collections in all five sites were performed during one hour (capture effort). A total of 51 species belonging to 17 genera were collected. The control site was the richest in ant species (r = 45). Sites with high level of copper and poor plant cover presented the lowest richness: mine (r = 14), solid reject (r = 15), and liquid reject (r = 16). In contrast, the site planted with Pinus presented an increment in richness (r = 24) of ground-dwelling ants, suggesting a reahabilitation process.

scholarly journals Uso de diferentes pontas de pulverização no controle de doenças no trigo

2019 ◽  
Vol 40 ◽  
pp. 11
Author(s):  
Alicia Baumhardt Dorneles ◽  
Eduardo Leonel Bottega ◽  
Zanandra Boff de Oliveira ◽  
Alberto Eduardo Knies ◽  
Clarissa Moraes da Silva ◽  
...  
Keyword(s):  
Experimental Design ◽  
Environmental Factors ◽  
Chemical Control ◽  
Rio Grande ◽  
Control Plot ◽  
State University ◽  
Rio Grande Do Sul ◽  
Randomized Experimental Design ◽  
Management Techniques ◽  
Grain Contamination

Unstable environmental factors contribute to the incidence of diseases and pests, causing reduced yield and grain contamination, especially the attack by Giberela (Fusarium graminerum). In this scenario, appropriate management techniques are needed. Strategies such as choosing the suitability of the spray tip for chemical control are indispensable. The aim of this study was to use four spray tips: CVI 11002, ADI ISO 11002, TVI ISO 8002 and ATR 8002. The experiment was conducted in the experimental area of The State University of Rio Grande do Sul, in the district of Três Vendas, in Cachoeira do Sul-RS. The cultivar used was TBIO SELETO. The fungicide used was Nativo®. A completely randomized experimental design with 4 replicates and a control plot was adopted. The following parameters were evaluated: weight of one thousand grains (PMG, %), hectoliter weight (PH; kg hL-1) and yield (PRD; kg ha-1). The variance was tested by applying the Snedcor F test (p<0.05) and the means were compared by the Tukey's test (p<0.05). The weight of one thousand grains, hectoliter weight and yield were not influenced by the use of different spray tips adopted in the wheat phytosanitary control.

scholarly journals Gift theory among groups of users of crack and other drugs

2015 ◽  
Vol 24 (2) ◽  
pp. 467-475 ◽  
Author(s):  
Roberta Zaffalon Ferreira ◽  
Michele Mandagará de Oliveira ◽  
Luciane Prado Kantorski ◽  
Valéria Cristina Christello Coimbra ◽  
Vanda Maria da Rosa Jardim
Keyword(s):  
Rio Grande ◽  
The State ◽  
Health Policies ◽  
Rio Grande Do Sul ◽  
Way Of Life ◽  
Ethnographic Approach ◽  
The Gift ◽  
Gift Theory ◽  
Crack Users ◽  
Made In

This is an excerpt from a dissertation which sought to investigate the meaning of gift theory among groups of users of crack and of other drugs within the scenarios of use. The study has an ethnographic approach; participants were 13 persons who made use of crack and other drugs in the scenarios of use in the Municipality of Pelotas in the state of Rio Grande do Sul, and the observations were made in 2013. The results evidenced that the users are victims of prejudice, but maintain the gift in their relationships and seek to help each other and show solidarity as a group. It was possible to share and demystify a highly specific and invisible way of life of the crack users; however, the changes will only begin to appear when more efficacious means of approach are found, with health policies for promoting closeness and links with this population, providing, above all, embracement of their needs, which at many times appeared to be neglected.

scholarly journals Rediscovery of Sporophila frontalis (Verreaux, 1869) (Aves, Thraupidae) in the state of Rio Grande do Sul, southern Brazil

Check List ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 2069
Author(s):  
João Paulo Gava Just ◽  
Ricardo Dossa Colvero ◽  
Jairo José Zocche
Keyword(s):  
South America ◽  
Geographical Distribution ◽  
Atlantic Forest ◽  
Habitat Loss ◽  
Rio Grande ◽  
Species Range ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Pet Trade ◽  
Made In

The Buffy-fronted Seedeater, Sporophila frontalis (Verreaux, 1869) (Aves, Thraupidae), is a threatened passerine endemic to the Atlantic Forest of southeastern South America. Habitat loss and illegal capture for the pet trade has reduced the geographical distribution of this species. The Brazilian state of Rio Grande do Sul represents the southernmost limit of this species’ range. There, S. frontalis was last recorded in 1883, and currently this species is thought to be as extirpated in this state. After 133 years, we report photographic and audiotape records of S. frontalis, made in the municipalities of Maquiné and Mampituba, Rio Grande do Sul.

scholarly journals Resistance to Meloidogyne mayaguensis in Psidium spp. Accessions and their grafting compatibility with P. guajava cv. Paluma

2007 ◽  
Vol 32 (4) ◽  
pp. 281-284 ◽  
Author(s):  
Regina M.D.G. Carneiro ◽  
Pedro Augusto Cirotto ◽  
Alípio P. Quintanilha ◽  
Dijalma B. Silva ◽  
Rui G. Carneiro
Keyword(s):  
Control Method ◽  
Rio Grande ◽  
Psidium Guajava ◽  
Rio Grande Do Sul ◽  
Severe Damage ◽  
Plastic Bags ◽  
Moderately Resistant

Meloidogyne mayaguensis has been reported in some states of Brazil causing severe damage on commercial guava (Psidium guajava L.). Accessions of Psidium spp. were selected from a collection maintained in Embrapa Clima Temperado (Pelotas, Rio Grande do Sul State). Plants of different accessions were grown from seed in plastic bags and, when they reached 15-20 cm in height, were inoculated with 10,000 eggs/plant of M. mayaguensis. Eight months after inoculation, the different accessions were evaluated for resistance to M. mayaguensis. Three accessions of P. guajava were highly susceptible (RF=59.2) to this nematode. Psidium friedrichsthalianium was considered to be moderately resistant (RF=1.9). Three accessions of P. cattleyanum were immune to M. mayaguensis (RF = 0). When used as rootstocks P. cattleyanum and P. friedrichsthalianium were compatible with P. guajava cv. Paluma. Considering these results, the use of resistant rootstocks provides a promising control method for M. mayaguensis in commercial guava crop.

scholarly journals Ecological-evolutionary relationships in Passiflora alata from Rio Grande do Sul, Brazil

2006 ◽  
Vol 66 (3) ◽  
pp. 809-816 ◽  
Author(s):  
P. Koehler-Santos ◽  
A. P. Lorenz-Lemke ◽  
F. M. Salzano ◽  
L. B. Freitas
Keyword(s):  
Geographical Distribution ◽  
Molecular Genetic ◽  
Rio Grande ◽  
Genetic Data ◽  
Evolutionary Relationships ◽  
Rio Grande Do Sul ◽  
First Report ◽  
Ecological Characteristics ◽  
Molecular Genetic Data ◽  
Made In

The geographical distribution, ecological characteristics, flowering and fruiting times, and pollinating agents of Passiflora alata are considered and related to molecular genetic data gathered simultaneously. The first report on this species in Rio Grande do Sul was made in 1934, only in cultivated gardens. Approximately 20 years later, however, the species was already classified as efferata (wild) in Porto Alegre's suburbs. The data presented here, together with the DNA investigations, indicate that P. alata is actively colonizing previously unoccupied areas of this region.

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