Abstract The study was carried out on an agroecological property located in Cologne São Manoel, 8th district of Pelotas, RS, Brazil. Anochetus neglectus Emery, 1894 was collected in an area of peach orchard that has been under an agroecological system for 18 years. This record expands the area of occurrence and distribution of this rare species in the Neotropical Region. Manoel th Pelotas RS Brazil Emery 189 1 years Region

Abstract The presence of ants in school kitchens and canteens may pose a risk of food contamination. The present study aimed to evaluate the potential of the ants as carriers of microorganisms indicating hygienic and sanitary conditions in school kitchens and canteens in the western region of Santa Catarina. Ten samples were collected with up to ten ants in the kitchen and canteen environments in nine urban schools. The ants were evaluated using microbiological analyses regarding Staphylococcus aureus, aerobic mesophilic bacteria, total coliforms and thermotolerant coliforms/Escherichia coli. Twenty ant species were sampled. Four species presented counts for S. aureus, eight for aerobic mesophilic bacteria and three for total coliforms. The results evidenced the potential of ants as indicators of contamination and the risk of ants to carrier microorganisms in school environments and an important diversity occurring in indoor environments.

Abstract The objective of the study was to compare the richness and diversity of ant assemblages in an agroecological system under peach orchard, conventional system under peach orchard cultivation and native vegetation in rural properties located in a Pampa Biome. The study was conducted in four samplings in 2017: 1st and 09th March (summer); 24th and 31st July (winter); and four samplings in 2018: 23rd and 30th January (summer); 31st July and 07th August (winter). Pitfall traps were used. The assemblages were characterized and compared using richness, number of occurrences of ants, Shannon diversity (H’), equitability, rarefaction analysis and Chao 1. The association of the species with the samples was evaluated by a Principal Component Analysis (PCA). The agroecological system had the highest number of occurrences, while the conventional orchard the lowest number. Richness and abundance were greatest during the summer. The conventional peach orchard obtained the lowest H’ for both seasons when compared to the agroecological orchard and native vegetation. The PCA explained 77.40% of the occurrence of ants in the environments and in the seasons. The results found demonstrated that conservationist systems tend to harbor greater wealth and diversity of ant assemblages, as well as occurring in native áreas.

Objective. To describe the characteristics of dengue epidemic in Pinhalzinho, Santa Catarina, Brazil, and investigate the effects of climate variables on the Aedes aegypti mosquito’s infestation. Methods. Ecological study with data on dengue cases, hospitalizations and deaths from the disease, in 2015 and 2016; in addition to the climate variables and the points of Ae. aegypti breeding places, from 2015 to 2018. Results: In the 2015-2016 epidemic period, the dengue incidence rate was 12,695.2/100 thousand inhabitants. The highest incidence registred was found in female sex (13,926.4/100 thousand inhabitants) and in the age groups above 50 years (17,162.0/100 thousand inhabitants). The average temperature and relative humidity showed a positive relationship with the increase of Ae. aegypti breeding places. Conclusion. The incidence of dengue during the epidemic was the largest ever recorded in the country. Climate conditions must be considered when planning vector control and dengue prevention actions.

Objetivo. Descrever as características da epidemia da dengue em Pinhalzinho, Santa Catarina, Brasil, e investigar os efeitos das variáveis climáticas sobre a infestação pelo mosquito Aedes aegypti. Métodos. Estudo ecológico, com dados sobre casos de dengue, hospitalizações e óbitos pela doença, em 2015 e 2016, além das variáveis meteorológicas e focos de Ae. aegypti, de 2015 a 2018. Resultados. No período epidêmico de 2015-2016, a taxa de incidência de dengue foi de 12.695,2/100 mil habitantes. Foi registrada maior incidência no sexo feminino (13.926,4/100 mil hab.) e nas faixas etárias acima de 50 anos (17.162,0/100 mil hab.). A temperatura média e a umidade relativa do ar apresentaram relação positiva com o aumento de focos de Ae. aegypti. Conclusão. A incidência de dengue durante a epidemia foi a maior já registrada no país. As condições climáticas devem ser consideradas no planejamento das ações de controle vetorial e prevenção à dengue.

Resumo Objetivo Descrever as características da epidemia da dengue em Pinhalzinho, Santa Catarina, Brasil, e investigar os efeitos das variáveis climáticas sobre a infestação pelo mosquito Aedes aegypti. Métodos Estudo ecológico, com dados sobre casos de dengue, hospitalizações e óbitos pela doença, em 2015 e 2016, além das variáveis meteorológicas e focos de Ae. aegypti, de 2015 a 2018. Resultados No período epidêmico de 2015-2016, a taxa de incidência de dengue foi de 12.695,2/100 mil habitantes. Foi registrada maior incidência no sexo feminino (13.926,4/100 mil hab.) e nas faixas etárias acima de 50 anos (17.162,0/100 mil hab.). A temperatura média e a umidade relativa do ar apresentaram relação positiva com o aumento de focos de Ae. aegypti. Conclusão A incidência de dengue durante a epidemia foi a maior já registrada no país. As condições climáticas devem ser consideradas no planejamento das ações de controle vetorial e prevenção à dengue.

Abstract Objective To describe the characteristics of the dengue epidemic in Pinhalzinho, Santa Catarina, Brazil, and to investigate the effects of climate variables on Aedes aegypti mosquito infestation. Methods This was an ecological study using data on dengue cases, hospitalizations and deaths in 2015 and 2016; in addition to climate variables and Aedes aegypti breeding grounds from 2015 to 2018. Results In the 2015-2016 epidemic, the dengue incidence rate was 12,695.2/100,000 inhabitants. Higher incidence was registered in the female sex (13,926.4/100,000 inhabitants) and in the 50 years and over age group (17,162.0/100,000 inhabitants). Average temperature and relative humidity showed a positive relationship with increase in Aedes aegypti breeding grounds. Conclusion Dengue incidence during the epidemic was the highest ever recorded in the country. Climate conditions must be considered when planning vector control and dengue prevention actions.

Resumen Objetivo Analizar las características de la epidemia de dengue en Pinhalzinho, Santa Catarina, Brasil, y evaluar los efectos de las variables climáticas en la infestación del mosquito Aedes aegypti. Métodos Estudio ecológico con datos sobre casos de dengue , hospitalizaciones y óbitos en 2015 y 2016, además de las variables meteorológicas y focos de Ae. Aegypti de 2015 a 2018. Resultados En el período epidémico de 2015-2016, la incidencia de dengue fue 12.695,2 casos/100 mil habitantes. Se registró la mayor incidencia en el sexo femenino y en el grupo de edad superior a los 50 años. El promedio de temperatura y humedad relativa del aire presentaron una relación positiva con el aumento de los brotes de Ae. aegypti. Conclusión La epidemia fue la más grande registrada en el país. La evaluación del proceso epidémico y las condiciones climáticas se constituyen en importante herramienta para planificación del control vectorial y acciones de prevención al dengue.

Resumo Objetivo Descrever as características da epidemia da dengue em Pinhalzinho, Santa Catarina, Brasil, e investigar os efeitos das variáveis climáticas sobre a infestação pelo mosquito Aedes aegypti. Métodos Estudo ecológico, com dados sobre casos de dengue, hospitalizações e óbitos pela doença, em 2015 e 2016, além das variáveis meteorológicas e focos de Ae. aegypti, de 2015 a 2018. Resultados No período epidêmico de 2015-2016, a taxa de incidência de dengue foi de 12.695,2/100 mil habitantes. Foi registrada maior incidência no sexo feminino (13.926,4/100 mil hab.) e nas faixas etárias acima de 50 anos (17.162,0/100 mil hab.). A temperatura média e a umidade relativa do ar apresentaram relação positiva com o aumento de focos de Ae. aegypti. Conclusão A incidência de dengue durante a epidemia foi a maior já registrada no país. As condições climáticas devem ser consideradas no planejamento das ações de controle vetorial e prevenção à dengue.

Abstract Objective To describe the characteristics of the dengue epidemic in Pinhalzinho, Santa Catarina, Brazil, and to investigate the effects of climate variables on Aedes aegypti mosquito infestation. Methods This was an ecological study using data on dengue cases, hospitalizations and deaths in 2015 and 2016; in addition to climate variables and Aedes aegypti breeding grounds from 2015 to 2018. Results In the 2015-2016 epidemic, the dengue incidence rate was 12,695.2/100,000 inhabitants. Higher incidence was registered in the female sex (13,926.4/100,000 inhabitants) and in the 50 years and over age group (17,162.0/100,000 inhabitants). Average temperature and relative humidity showed a positive relationship with increase in Aedes aegypti breeding grounds. Conclusion Dengue incidence during the epidemic was the highest ever recorded in the country. Climate conditions must be considered when planning vector control and dengue prevention actions.

Resumen Objetivo Analizar las características de la epidemia de dengue en Pinhalzinho, Santa Catarina, Brasil, y evaluar los efectos de las variables climáticas en la infestación del mosquito Aedes aegypti. Métodos Estudio ecológico con datos sobre casos de dengue , hospitalizaciones y óbitos en 2015 y 2016, además de las variables meteorológicas y focos de Ae. Aegypti de 2015 a 2018. Resultados En el período epidémico de 2015-2016, la incidencia de dengue fue 12.695,2 casos/100 mil habitantes. Se registró la mayor incidencia en el sexo femenino y en el grupo de edad superior a los 50 años. El promedio de temperatura y humedad relativa del aire presentaron una relación positiva con el aumento de los brotes de Ae. aegypti. Conclusión La epidemia fue la más grande registrada en el país. La evaluación del proceso epidémico y las condiciones climáticas se constituyen en importante herramienta para planificación del control vectorial y acciones de prevención al dengue.

Resumo As formigas compreendem um táxon muito diverso de insetos, apresentam elevada riqueza e são ecologicamente importantes nos diferentes ecossistemas terrestres. A riqueza e diversidade de formigas tendem a aumentar de acordo com a complexidade dos ambientes no que se refere à vegetação e ao estágio de conservação da biodiversidade. Este estudo visou caracterizar as assembleias de formigas que ocorrem em duas áreas de preservação permanente, descritas como fragmentos de vegetação nativa circundados por lavouras e, dois plantios de eucalipto, cercados por lavouras e pastagens. O estudo foi realizado no município de Frederico Westphalen (27°21′27″; 53°23′ 40″O), noroeste do Rio Grande do Sul. Foram utilizadas 10 armadilhas de queda (pitfall) e 20 iscas, 10 de sardinha e 10 de glicose em cada área. A riqueza foi definida como o número de espécies que ocorreram em cada uma das amostras e foi comparada por meio de análise de rarefação baseadas no número de ocorrências. A relação entre as espécies de formigas e os diferentes ambientes foi verificada através da Análise de Componentes Principais (PCA). A riqueza de formigas amostrada foi de 71 espécies, pertencentes a 19 gêneros, cinco subfamílias e, sete espécies ocorreram nos quatro ambientes amostrados. A subfamília Myrmicinae e os gêneros Pheidole e Camponotus foram os mais ricos no estudo. Observou-se diferença significativa quanto à riqueza, abundância e a composição das assembleias de formigas entre os ambientes amostrados. Os resultados apontam diferenças entre as assembleias de formigas dos fragmentos florestais e das plantações de eucalipto, e acrescentam informações acerca da biodiversidade da região do estudo.

Abstract The ants comprise a very diverse taxon of insects, present high richness and are ecologically important in the different terrestrial ecosystems. The richness and diversity of ants tend to increase according to the complexity of the environments in terms of vegetation and the stage of biodiversity conservation. This study aimed at inventorying and characterizing ant assemblages that occur in two permanent preservation areas, characterized as fragments of native vegetation surrounded by crops, and two eucalyptus plantations, surrounded by crops and pastures. The study was carried out in the municipality of Frederico Westphalen (27 ° 21 ‘27 “, 53 ° 23’ 40” W), located in the northwestern region of Rio Grande do Sul state. Ten pitfall traps and 20 baits, 10 sardines and 10 glucose ones were used in each area. The richness was defined as the number of species that occurred in each sample and was compared by means of rarefaction analysis based on the number of occurrences. The relationship between the ant species and the different environments was verified through a Principal Component Analysis (PCA). The richness of ants was 71 species, belonging to 19 genera and five subfamilies. Seven species occurred in four sampled environments. The subfamily Myrmicinae and the genera Pheidole and Camponotus were the richest ones in the study. A significant difference was observed regarding the richness, abundance and composition of ant assemblages among the sampled environments. A total of 76.4% of the variation in the occurrence of ants, according to the environments sampled, was explained by the first two components of the PCA. The results point out differences between ant assemblages from forest fragments and those from eucalyptus plantations. They add information about the biodiversity of the study region.

Resumo: O estudo teve como objetivo elaborar uma lista das espécies de borboletas frugívoras ocorrentes em florestas da Mata Atlântica, nas Unidades de Conservação: Floresta Nacional de Chapecó (FLONA), Estação Ecológica da Mata Preta (ESEC) e Parque Estadual das Araucárias (PAEAR) e fragmentos florestais adjacentes, localizados na Região Oeste de Santa Catarina. Foram realizadas três campanhas de coletas entre dezembro de 2017 e março de 2018, totalizando 24 dias de coletas em cada área amostral. Para a captura das borboletas frugívoras, foram utilizadas armadilhas Van Someren-Rydon. Foram registradas 4231 borboletas frugívoras pertencentes a quatro subfamílias, 12 tribos e 49 espécies. Foram amostradas 37 espécies de borboletas frugívoras na FLONA e 29 nos fragmentos florestais adjacentes. Na ESEC 29 espécies e 33 nos fragmentos florestais adjacentes. No PAEAR 33 espécies e 28 nos fragmentos florestais adjacentes. Do total de espécies registradas, 15 espécies de borboletas frugívoras são novos registros para o estado de Santa Catarina e 11 são novos registros para a região oeste do estado. As espécies mais abundantes para a FLONA foram: Manataria hercyna (Hübner, 1821) e Hermeuptychia sp. Na ESEC, foram Hermeuptychia sp. e Yphthimoides ordinaria (Freitas, Kaminski & Mielke, 2012). No PAEAR verificou-se maior abundância das espécies Forsterinaria quantius (Godart, 1824) e Eryphanes reevesii (Doubleday, 1849). Para os fragmentos florestais adjacentes das Unidades de Conservação houve maior abundância das espécies: Hermeuptychia sp., Moneuptychia soter (Butler, 1877), Morpho epistrophus (Fabricius, 1796) e Forsterinaria quantius (Godart, 1824). Satyrinae apresentou maior riqueza (S=34) e abundância (90,58%) de borboletas frugívoras em todas as áreas amostradas. As curvas de rarefação e extrapolação, para as Unidades de Conservação e fragmentos florestais adjacentes mostraram uma maior ascendência nas unidades amostrais da FLONA e PAEAR e seus fragmentos florestais adjacentes. A cobertura estimada de amostragem para as borboletas frugívoras, para as Unidades de Conservação e fragmentos florestais, ficou acima de 97%. A riqueza calculada através do estimador Jackknife 1, mostrou-se superior à riqueza observada, sendo que para as amostragens na FLONA e PAEAR, o estimador apresentou um valor de 50,75 e 37,09, respectivamente. A fauna de borboletas frugívoras da região, investigada pela primeira vez em áreas de Unidades de Conservação, mostrou-se bastante expressiva e bem representada no Bioma Mata Atlântica, indicando seu potencial como refúgio da biodiversidade.

Abstract: This study aimed to present a list of the species of frugivorous butterflies occurring in Atlantic Forests, in the Conservation Units: National Forest of Chapecó (FLONA), Ecological Station of Mata Preta (ESEC) and State Park of Araucárias (PAEAR) and adjacent forest fragments, located in the western region of the state of Santa Catarina. Three samplings were conducted between December 2017 and March 2018, totaling 24 days of collection in each sampling area. Van Someren-Rydon traps were used to capture frugivorous butterflies. There were 4,231 frugivorous butterflies belonging to four subfamilies, 12 tribes and 49 species. In all, 37 species of frugivorous butterflies were sampled in FLONA and 29 in adjacent forest fragments. In ESEC, 29 species and 33 in adjacent forest fragments. In PAEAR, 33 species and 28 in adjacent forest fragments. Of the total species registered, 15 species are new records for the state of Santa Catarina and 11 are new records for the western region of the state. The most abundant species for FLONA were: Manataria hercyna (Hübner, 1821) and Hermeuptychia sp. In ESEC, were Hermeuptychia sp. and Yphthimoides ordinaria (Freitas, Kaminski & Mielke, 2012). In PAEAR, greater abundance of Forsterinaria quantius (Godart, 1824) and Eryphanes reevesii (Doubleday, 1849) were verified. For the adjacent forest fragments to Conservation Units, there was a greater abundance of Hermeuptychia sp., Moneuptychia soter (Butler, 1877), Morpho epistrophus (Fabricius, 1796) e Forsterinaria quantius (Godart, 1824). Satyrinae presented higher richness (S = 34) and abundance (90.58%) in all areas sampled. The rarefaction and extrapolation curves for the Conservation Units and adjacent forest fragments showed a greater rise in the FLONA and PAEAR sampling units and their adjacent forest fragments. The estimated sampling coverage for Conservation Unit and forest fragments was above 97%. The richness calculated through the Jackknife 1 estimator, for the FLONA and PAEAR samplings, presented a value of 50.75 and 37.09, respectively. The fauna of frugivorous butterflies from this region, first investigated in areas of Conservation Units, showed to be expressive and well represented in the Atlantic Forest Biome, indicating its potential as a refuge for biodiversity.

Abstract Natural products, especially phytochemicals, have been extensively studies and have exhibited important antiproliferative effects. The American native species Urera baccifera (L.) Gaudich. ex Wedd. (Urticaceae) is widely distributed in Brazil, where it is known as urtiga-vermelha or urtigão. The leaves are popularly used as anti-inflammatory, antirheumatic and in the treatment of gastric disorders. However, the antiproliferative potential of this plant against human tumor cells remain to be elucidated. In this study, we evaluated the antiproliferative effects of U. baccifera leaves extracts and fractions against a panel of human tumor cell lines in vitro besides a chemical evaluation of the most active sample by mass spectrometry (ESI-IT-MSn). The hydroalcoholic extract was inactive while dichloromethane extract showed moderate cytostatic activity against ovarian carcinoma cell line (OVCAR-3, GI50 = 1.5 μg/mL). More, the ethyl acetate and n-butanol fractions did not show important activity against tumour cell while the dichloromethane and hexane fractions showed moderate cytostatic activity against ovarian tumor cell line (OVCAR-3, GI50 = 12.7 and 9.4 μg/mL, respectively). Finally, the chemical profile evaluated by mass spectrometry (ESI-IT-MSn) allowed the detection of flavonoids in the HEU and hydroxylated fatty acid in DEU that can explain partially the biological effects observed. This is the first report of the antiproliferative effects of U. baccifera, and DEU has shown potential as a promising source of bioactive compounds.

RESUMO Áreas de preservação permanente contribuem para a recuperação de ambientes impactados e Formicidae representa um grupo potencialmente bioindicador, utilizado para descrever a complexidade estrutural de habitat. Assim, neste contexto, este estudo objetivou caracterizar a diversidade das assembleias de formigas que ocorrem em sítios com diferentes históricos de uso do solo na APP do reservatório da UHE Foz do Chapecó, bem como avaliar a similaridade das assembleias de formigas segundo os sítios amostrados. A amostragem foi realizada no mês de janeiro de 2017 em cinco sítios, três em Santa Catarina e dois no Rio Grande do Sul. Foram utilizados pitfall, guarda-chuva entomológico, isca de sardinha, isca de glicose e coleta manual. As assembleias foram caracterizadas e comparadas através da riqueza, abundância, diversidade de Shannon-Weaver (H’), Equitabilidade (J’) e estimativas de riqueza (Chao 1). Ao todo foram amostradas 101 espécies. A média das estimativas indicou que a riqueza pode ser 86,7% maior que a amostrada, enquanto os parâmetros de diversidade indicaram diferenças entre as assembleias. Os índices de diversidade mostraram divergência de 39,7% entre as assembleias com maior e menor diversidade. A riqueza observada neste estudo reitera o potencial de utilização das formigas como bioindicadoras do estado de conservação ambiental, acrescenta informações importantes sobre a riqueza e a ocorrência de formigas para a região e apresenta, sobretudo, um inventário das espécies de formigas presentes em uma área de APP, em processo de regeneração, que poderá servir de parâmetro para avaliações subsequentes.

ABSTRACT Permanent preservation areas contribute to the recovery of impacted environments and Formicidae is a potentially bioindicator group, used to describe the structural complexity of habitats. In this context, the study aimed to characterize the diversity of ant assemblages that occur in sites with different soil use history in the APP of Foz do Chapecó HPP reservoir, as well as to evaluate the similarity of ant assemblages according to the sampled sites. Sampling was carried out in January 2017 at five sites, three in Santa Catarina state and two in Rio Grande do Sul state. Pitfall, entomological umbrella, sardine bait, glucose bait and manual collection were used. Assemblies were characterized and compared through richness, abundance, diversity of Shannon-Weaver (H’), Equitability (J’) and estimated richness (Chao 1). A total of 101 species were sampled. The average of the estimates indicated that richness may be 86.7% greater than that sampled, while the diversity parameters indicated differences between the assemblies. Diversity indices showed divergence of 39.7% between the more and less diverse assemblies. The richness observed in this study reiterates the potential of the use of ants as bioindicators of the state of environmental conservation, adds important information on the richness and occurrence of ants for the region and presents, above all, an inventory of the species of ants present in an area of APP in a regeneration process that can serve as parameter for subsequent evaluations.

RESUMO JUSTIFICATIVA E OBJETIVOS: Na última década, a população idosa cresceu mundialmente, tanto nos países desenvolvidos quanto nos países em desenvolvimento. A prevalência de doenças crônicas aumenta com a velhice. As de origem osteomioarticular podem ter quadros de dor associado, o que pode produzir impactos na qualidade de vida do idoso. Os objetivos deste estudo foram avaliar a qualidade de vida de idosos com e sem dor crônica e correlacioná-la com o número de doenças crônicas, intensidade de dor e faixa etária. MÉTODOS: Estudo quantitativo, descritivo de corte transversal, realizado em um município do Oeste catarinense, com uma amostra de 385 idosos residentes na área urbana. Utilizou-se como instrumentos de análise o Mini-Exame do Estado Mental; o questionário de dados gerais; o questionário WHOQOL-OLD; e a escala visual numérica da dor. A comparação da qualidade de vida entre idosos com e sem dor crônica foi realizada por meio do teste U de Mann-Whitney, e as correlações foram realizadas pelo teste de correlação de Spearman. RESULTADOS: Observou-se a predominância de dor de intensidade moderada. Idosos com dor crônica possuem índice de qualidade de vida menor que o grupo sem dor, independentemente do sexo, sendo que aqueles que têm dor crônica e idade maior que 71 anos possuem um menor índice de qualidade de vida. CONCLUSÃO: Os fatores presença de dor crônica, quantidade de doenças, intensidade da dor e faixa etária acima de 71 anos influenciaram de forma negativa a qualidade de vida dos idosos estudados.

ABSTRACT BACKGROUND AND OBJECTIVES: In the last decade, the elderly population has grown worldwide, both in developed and developing countries. Together with the aging process, the prevalence of chronic diseases and consequently the presence of pain are common and may have a strong impact on the quality of life of the elderly. The objective of this study was to evaluate the quality of life of elderly patients with and without chronic pain and to compare the quality of life with the number of chronic pathologies, pain intensity and age range METHODS: A quantitative, descriptive cross-sectional study carried out in a city in the West of the state of Santa Catarina with a sample of 385 senior people living in the urban area. The instruments of analysis were: the Mental State Mini Exam; the general data questionnaire adapted from Morais, Rodrigues e Gerhardt; The WHOQOL-OLD questionnaire, and a visual numerical scale. For the intergroup comparison, the Mann-Whitney test was used, and Pearson’s correlation was used in the correlations. RESULTS: It was observed the predominance of pain of moderate intensity. Old people with chronic pain have a lower quality of life index than the group without pain regardless the gender, and those who have chronic pain and age above 71 years have a lower quality of life index. CONCLUSION: The presence of chronic pain, number of diseases, pain intensity, female gender and age group above 71 years negatively influenced the quality of life of the elderly studied.

Resumen La utilización de productos sintéticos en el control de mosquitos Aedes aegypti ha inducido en sus poblaciones la resistencia e impone riesgos a la fauna y flora. En este estudio fueron evaluados el efecto del extracto del fruto de Melia azedarach (Meliaceae) obtenido a través del método de extracción con dióxido de carbono supercrítico y el potencial larvicida del Bacillus thuringiensis var. israelensis (Bti) sobre los inmaduros de A. aegypti en condiciones de laboratorio. Los ensayos fueron realizados en vasos desechables con 100, 250, 500, 750, 1.000 and 2.000 μg/ml de concentración de extracto de M. azedarach, y 0,0005, 0,001, 0,0015, 0,002 y 0,0025 g/L de VectoBac WG®, y como controles, agua. Para cada vaso fueron adicionadas 10 larvas activas. Los resultados fueron comparados considerando el número de larvas vivas contadas a diario durante 72 h. La eficiencia de los tratamientos probados fue calculada por la ecuación de Abbott. El extracto supercrítico de M. azedarach presentó acción positiva para las concentraciones de 1.000 y 2.000 μg/mL. Para el Bti la eficiencia fue del 100 % en las primeras 24 h. Los resultados indican la posibilidad del control poblacional del A. aegypti a partir del extracto supercrítico de M. azedarach.

Abstract The intense use of synthetic products for the control of Aedes aegypti has led to the development of resistance and imposes health risks to other flora and fauna. This study assessed the larvicidal potential of Melia azedarach (Meliaceae) fruit extract obtained by the supercritical carbon dioxide extraction method and Bacillus thuringiensis var. israelensis (Bti) on second and third instar A. aegypti larvae under laboratory conditions. The assays were performed in disposable cups containing 100 250, 500, 750, 1,000 and 2,000 μg/ml extracts of M. azedarach, and 0.0005, 0.001, 0.0015, 0.002, and 0.0025 g/L of VectoBac WG®; the controls contained only water. Ten active larvae were added to each well, and the number of living larvae was counted each day for 72 h. Treatment efficiency was calculated using Abbott's equation. Insecticidal efficiency increased with M. azedarach extract concentration, with significant effects in the 1,000 and 2,000 μg/mL concentration range. Bti efficiency was 100 % in the first 24 h. The results indicate the possibility of A. aegypti population control using supercritical extracts of M. azedarach.

ABSTRACT Ant diversity is influenced by the structural complexity of the environment. Ants are thus an ecologically important group due to their potential to serve as indicators of environmental quality. The objective of this study was to evaluate ant diversity in areas with different land use histories and thus, within different stages of regeneration in the Permanent Preservation Area of the Foz do Chapecó Hydroelectric Plant reservoir. Ant assemblies among sample sites were compared using rarefaction analysis, and estimated richness, frequency of occurrence, and relative abundance were calculated. Associations between species and sample sites were evaluated using Principal Component Analysis (PCA). We identified 55 species in total from 24 genera, distributed among seven subfamilies. Eight species had positive associations with sample sites. Estimates indicated that ant richness may be up to 21.4% greater than that observed. This study presents an inventory of species capable of colonizing environments undergoing natural regeneration processes, and aids our understanding of ecological recovery dynamics in protected areas near hydroelectric plant reservoirs southern Brazil.

RESUMO O objetivo foi investigar a dor lombar, flexibilidade muscular e relação com o Nível de Atividade Física (NAF) de trabalhadores rurais. Pesquisa transversal com 184 trabalhadores rurais, 44,24 (±10,83) anos. Avaliou-se o NAF pelo Questionário Internacional de Atividade Física (Ipaq); dor e disfunção lombar pela Escala Visual Analógica da dor (EVA) e Índice de Incapacidade Oswestry (IIO); avaliação da Flexibilidade Toracolombar (FBW) e de isquiotibiais (Ângulo Poplíteo - AP - e Teste de Elevação da Perna Retificada - TEPR). Os dados foram analisados pelos testes Kruskal Wallis, seguido pelo U de Mann-Whitney e correlação de Spearman. Houve correlação negativa entre a EVA com a FBW, AP e TEPR. A variação da dor pela EVA foi alta, e indivíduos sedentários possuem menor flexibilidade de isquiotibiais.

ABSTRACT The aim was to investigate low back pain, muscle flexibility and relationship with the Level of Physical Activity (LPA) of rural workers. It is a cross-sectional survey with 184 rural workers, 44.24 (± 10.83) years. We evaluated the LPA by Ipaq; pain and lumbar dysfunction by Visual Analog Scale (VAS) and Oswestry disability index (ODI); evaluation of thoracolumbar flexibility (TF) and hamstrings (PA and SLR). The data were analysed by Kruskal Wallis test followed by Mann-Whitney test and Spearman correlation. There was a negative correlation between the VAS with the TF, PA and SLR. The variation of pain by VAS was high and sedentary individuals have less flexibility of hamstring.

RESUMO O objetivo foi investigar a dor lombar, flexibilidade muscular e relação com o Nível de Atividade Física (NAF) de trabalhadores rurais. Pesquisa transversal com 184 trabalhadores rurais, 44,24 (±10,83) anos. Avaliou-se o NAF pelo Questionário Internacional de Atividade Física (Ipaq); dor e disfunção lombar pela Escala Visual Analógica da dor (EVA) e Índice de Incapacidade Oswestry (IIO); avaliação da Flexibilidade Toracolombar (FBW) e de isquiotibiais (Ângulo Poplíteo - AP - e Teste de Elevação da Perna Retificada - TEPR). Os dados foram analisados pelos testes Kruskal Wallis, seguido pelo U de Mann-Whitney e correlação de Spearman. Houve correlação negativa entre a EVA com a FBW, AP e TEPR. A variação da dor pela EVA foi alta, e indivíduos sedentários possuem menor flexibilidade de isquiotibiais.

ABSTRACT The aim was to investigate low back pain, muscle flexibility and relationship with the Level of Physical Activity (LPA) of rural workers. It is a cross-sectional survey with 184 rural workers, 44.24 (± 10.83) years. We evaluated the LPA by Ipaq; pain and lumbar dysfunction by Visual Analog Scale (VAS) and Oswestry disability index (ODI); evaluation of thoracolumbar flexibility (TF) and hamstrings (PA and SLR). The data were analysed by Kruskal Wallis test followed by Mann-Whitney test and Spearman correlation. There was a negative correlation between the VAS with the TF, PA and SLR. The variation of pain by VAS was high and sedentary individuals have less flexibility of hamstring.