scholarly journals Trap rebuilding by Myrmeleon brasiliensis larvae (Neuroptera: Myrmeleontidae) in response to flooding: the effect of body size

2021 ◽  
Vol 69 (4) ◽  
pp. 1224-1232
Author(s):  
Vitor Gabriel De Oliveira Leite ◽  
Raquel Braga Aquino Florenciano ◽  
Edihanne Gamarra Arguelho ◽  
Tatiane Do Nascimento Lima
Keyword(s):  
Population Structure ◽  
Body Size ◽  
Mortality Rate ◽  
Sandy Soil ◽  
Natural Environment ◽  
Forest Reserve ◽  
Mato Grosso ◽  
Trap Size ◽  
Mato Grosso Do Sul ◽  
Selection Of

Introduction: Immature forms of the antlion Myrmeleon brasiliensis (Neuroptera, Myrmeleontidae) build traps in dry sandy soil to capture prey. Objective: The aim of the present study was to investigate how the waterlogging of the soil due to rain affects the trap rebuilding and relocation behavior of M. brasiliensis of different sizes. Methods: The study was conducted between July and December 2019. Larvae M. brasiliensis were observed and collected from a forest reserve in the municipality of Aquidauana in the state of Mato Grosso do Sul, Brazil. Results: In the natural environment, most larvae rebuilt their traps in the same location seven days after the simulation of rain, with a smaller diameter than that observed prior to the simulation of rain. In the laboratory, the movements of M. brasiliensis larvae and rebuilding of the traps after the waterlogging of the soil was affected by body size. Larger larvae moved more and were more likely to rebuild their traps. Conclusions: The saturation of the soil affects the foraging of M. brasiliensis larvae, which are impeded from rebuilding their traps for a period. In situations of long periods of saturated soil, the mortality rate of the larvae is high and rebuilding of the traps occurs after the soil dries out, but with a smaller trap size. These data suggest that changes in the rainfall pattern can affect the population structure of M. brasiliensis larvae, with the selection of larger individuals in situations of more severe rains. In this process, the smaller larvae are more affected, as their foraging is impeded.

scholarly journals DECREASING PREVALENCE OF THE ACUTE/SUBACUTE CLINICAL FORM OF PARACOCCIDIOIDOMYCOSIS IN MATO GROSSO DO SUL STATE, BRAZIL

2014 ◽  
Vol 56 (2) ◽  
pp. 121-125 ◽  
Author(s):  
Larissa Rodrigues Fabris ◽  
Úrsulla Vilella Andrade ◽  
Aline Ferreira Dos Santos ◽  
Ana Paula da Costa Marques ◽  
Sandra Maria do Valle Leone de Oliveira ◽  
...  
Keyword(s):  
Mortality Rate ◽  
Age Distribution ◽  
Epidemiological Data ◽  
Infection Prevalence ◽  
Age Group ◽  
Clinical Form ◽  
Mato Grosso ◽  
Co Morbidity ◽  
Mato Grosso Do Sul ◽  
Overall Mortality

With the objective to evaluate the behavior of paracoccidioidomycosis in the last three decades, clinical and epidemiological data of 595 patients admitted to clinical services of the Federal University of Mato Grosso do Sul from 1980 to 2009 were investigated. Gender, age distribution, clinical form, comorbidity with tuberculosis or AIDS, and mortality were compared by decades of clinical admission. It was shown that during the three decades there was a decrease in women percentage, and the same manner occurred a reduction in participants in the age group of 20 to 39 years. Moreover, the acute/subacute forms have been diminished in the period. These fluctuations are closely related and can be simultaneously analyzed. Increased AIDS co-infection prevalence from the first to the second decade was also revealed, coinciding with the appearance of the retroviral epidemic and stabilizing during the third decade. No change in the tuberculosis co-infection rate was observed (overall = 6.9%). It reinforces the importance of this co-morbidity. The overall mortality rate remained steady at 6.7%, not varying significantly from one decade to another. The persistent mortality rate calls attention to the importance of this neglected disease.

scholarly journals Isolados de Metarhizium anisopliae (Metchnikoff) Sorokin (Hypocreales: Clavicipitaceae) para controle de Diatraea saccharalis Fabricius (Lepidoptera: Crambidae)

2014 ◽  
Vol 7 (1) ◽  
pp. 29-32
Author(s):  
Eduardo Kenji Hayashida ◽  
Samir Oliveira Kassab ◽  
Elisângela de Souza Loureiro ◽  
Camila Rossoni ◽  
Rogério Hidalgo Barbosa ◽  
...  
Keyword(s):  
Metarhizium Anisopliae ◽  
Adult Emergence ◽  
Mato Grosso ◽  
Control Programs ◽  
Control Value ◽  
Diatraea Saccharalis ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Mato Grosso Do Sul ◽  
Selection Of

A seleção de fungos entomopatogênicos é necessária para que se conheça a eficiência de diferentes isolados e se possa eleger o mais adequado para sua utilização em programas de controle biológico. Este trabalho teve por objetivo avaliar a eficiência dos isolados de Metarhizium anisopliae (Metchnikoff) Sorokin (UFGD 03, UFGD 05, UFGD 07 e UFGD 22), obtidos em Mato Grosso do Sul, em Diatraea saccharalis Fabricius. O ensaio experimental foi composto por um delineamento inteiramente casualizado com 5 tratamentos e 10 repetições, com 5 lagartas padronizadas por tamanho em cada repetição. De maneira geral, M. anisopliae afetou o ciclo biológico de D. saccharalis e o desenvolvimento desta praga é afetado pelo fungo. A percentagem de lagartas que empuparam variou de 64,00% a 88,60%. O tratamento com o isolado UFGD 03 apresentou maior percentagem de pupas mortas (68,00%) em relação aos demais isolados testados e quando comparado ao valor da testemunha (11,00%). A emergência dos adultos de D. saccharalis foi de 87,02% na testemunha. Nos tratamentos com o fungo, houve variação de 35,20%, 38,00%, 40,00%, 52,80% proporcionada pelos isolados UFGD 22, UFGD 03, UFGD 05 e UFGD 07, respectivamente. Isolates of Metarhizium anisopliae (Metchnikoff) Sorokin (Hypocreales: Clavicipitaceae) for the control of Diatraea saccharalis Fabricius (Lepidoptera: Crambidae) Abstract. The selection of entomopathogenic fungus that is a necessary to know the efficiency of different isolates and one can choose the most suitable for use in biological control programs. This study aimed to evaluate the efficiency of the isolates of Metarhizium anisopliae (Metchnikoff) Sorokin (UFGD 03, UFGD 05, UFGD UFGD 07 and UFGD 22), obtained in Mato Grosso do Sul on the Diatraea saccharalis Fabricius. The experimental trial consisted of a completely randomized design with five treatments and 10 repetitions with 5 caterpillars standardized size in each repetition. In general, M. anisopliae affects the life cycle of D. saccharalis and development of this pest is affected by the fungus. The percentage of caterpillars that pupae ranged from 64.00% to 88.60%. Treatment with isolated UFGD 03 had a higher percentage of dead pupae (68.00%) compared to other isolates tested and compared to the control value (11.00%). The adult emergence of D. saccharalis was 87.02% in the control. In the treatments with the fungus, there was a variation of 35.20%, 38.00%, 40.00%, 52.80% provided by isolates UFGD 22, UFGD 03, UFGD 05 and UFGD 07, respectively.

scholarly journals Living together, sometimes feeding in a similar way: the case of the syntopic hylid frogs Hypsiboas raniceps and Scinax acuminatus (Anura: Hylidae) in the Pantanal of Miranda, Mato Grosso do Sul State, Brazil

2010 ◽  
Vol 70 (4) ◽  
pp. 955-959 ◽  
Author(s):  
LT. Sabagh ◽  
VL. Ferreira ◽  
CFD. Rocha
Keyword(s):  
Body Size ◽  
Prey Availability ◽  
Niche Overlap ◽  
Trophic Niche ◽  
Mato Grosso ◽  
Ecological Aspects ◽  
Living Together ◽  
Frog Species ◽  
Mouth Width ◽  
Mato Grosso Do Sul

We studied the feeding ecology of two Hylinae anurans (Hypsiboas raniceps and Scinax acuminatus), living sympatrically and syntopically in the Pantanal of Miranda, Mato Grosso do Sul State, Brazil. The two hylid species had similar relative mouth width but differed in body size. The diet of the two frog species were composed of arthropodan prey. Both species consumed 11 different prey types, of which seven were common among them. Hypsiboas raniceps had a larger niche breadth (B A = 0.64) than S. acuminatus (B A = 0.48). Trophic niche overlap among frog species was 60.7 %. Our data are suggestive that although for many anurans the diet simply tend to reflect prey availability in the microhabitat, these two frog species, despite sharing similar microhabitat and period of activity (thus potentially exposed to a similar array of preys), tends to differ somewhat in diet (about 40%) which may result from some intrinsic ecological aspects to each of them (e.g. ecophysiology) and/or differences in body size.

scholarly journals Serologic and molecular diagnostic and bioassay in mice for detection of Toxoplasma gondii in free ranges chickens from Pantanal of Mato Grosso do Sul

2012 ◽  
Vol 32 (8) ◽  
pp. 721-726 ◽  
Author(s):  
Luciane Holsback ◽  
Hilda F. de J. Pena ◽  
Alessandra Ragozo ◽  
Estela G. Lopes ◽  
Solange M. Gennari ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Screening Method ◽  
Molecular Diagnostic ◽  
Tissue Samples ◽  
Mato Grosso ◽  
Modified Agglutination Test ◽  
Comparison Of Techniques ◽  
Acute Toxoplasmosis ◽  
Mato Grosso Do Sul ◽  
Selection Of

The aim of this study was to investigate the occurrence of Toxoplasma gondii and compare the results obtained in the Modified Agglutination Test (MAT), Polimerase Chain Reaction (PCR) and bioassay in mice. In order to accomplish this, 40 free-range chickens from eight farms in neighboring areas to the Pantanal in Nhecolândia, Mato Grosso do Sul, were euthanized and blood samples, brain and heart were collected. The occurrence of anti-T. gondii antibodies found in chickens was 67.5% (27 samples), considering as a cutoff point the dilution 1:5. Among the samples analyzed, 7 (25.9%) were positive in the dilution 1:5, 3 (11.1%) in 1:10, 2 (7.4%) in 1:20, 3 (11.1%) in 1:320, 1 ( 3.7%) in 1:640, 3 (11.1%) in 1:1280, 2 (7.4%) in 1:2560, 4 (14.8%) in 1:5120 and 2 (7.4%) in 1:10.240. From the mixture of tissue samples (brain and heart) from the chickens analyzed, 16 (40%) presented electrophoretic bands compatible with T. gondii by PCR (gene B1). In the comparison of techniques, 59.26% positivity in PCR was revealed among animals that were seropositive in MAT (cutoff 1:5). From 141 inoculated mice, six (4.44%) died of acute toxoplasmosis between 15 and 23 days after inoculation. Surviving mice were sacrificed at 74 days after inoculation, and a total of 28 cysts were found in the brains of 10 distinct groups. From the seropositive hens, 27 bioassays were performed and 11 (40.7%) isolates were obtained. A greater number of isolations happened in mice that were inoculated with tissues from chickens that had high titers for anti-T. gondii antibodies. Chronic infection in mice was observed in nine groups (33.3%) from five different properties. Among the surviving mice, 25.6% were positive for T. gondii in MAT (1:25). From mice positive in PCR, 87.5% were also positive in MAT. Among the PCR-negative mice, 5.2% were positive for T. gondii in MAT. It can be concluded through this study that the occurrence of infecton by T. gondii in the rural properties studied was high, that PCR directed to gene B1 does not confirm the viability of the parasite, but it can be used as a screening method for the selection of chickens infected by T. gondii, that the animals with titer greater than 10 must be prioritized for the selection of animals for bioassay, since for them, the chances of isolating the parasite are greater and that seroconversion in experimentally infected mice is not a good indicator for isolating the agent.

scholarly journals Allocation of property rights in emerging governance models of agricultural cooperatives in Mato Grosso do Sul: a comparative analysis with traditional cooperatives

2021 ◽  
Vol 59 (3) ◽  
Author(s):  
Alessandra Hocayen da Silva ◽  
Silvia Morales de Queiroz Caleman
Keyword(s):  
Qualitative Research ◽  
Property Rights ◽  
Agricultural Cooperatives ◽  
Traditional Model ◽  
Structured Interviews ◽  
New Members ◽  
Mato Grosso ◽  
Governance Models ◽  
Mato Grosso Do Sul ◽  
Selection Of

Abstract: The discussion about the governance of agricultural cooperatives has emphasized that a better allocation of property rights interferes with the competitiveness of this business model in the increasingly internationalized and deregulated market. This study seeks a greater deepening of the allocation of property rights in agricultural cooperatives in Mato Grosso do Sul/Brazil. The qualitative research was carried out in 4 agricultural cooperatives, two considered an emerging model and two traditional cooperatives. The investigation was conducted through the analysis of minutes of Ordinary General Meetings, statutes, and semi-structured interviews with managers and presidents. It was observed that the agricultural cooperatives, seen as an emerging model, where there is a selection of new members and act in a purchasing pool format, demonstrate an evolution concerning the traditional model by pointing to a greater professionalization of management, evidence of the separation between property and management. Moreover, the emerging model becomes more attractive than the traditional one by efficiently allocating the residual rights (earnings).

scholarly journals Selection of cowpea genotypes for Mato Grosso do Sul viaGGE Biplot and linear regression

2017 ◽  
pp. 631-638 ◽  
Author(s):  
Adriano dos Santos ◽  
Gessi Ceccon ◽  
Erina Vitório Rodrigues ◽  
Paulo Eduardo Teodoro ◽  
Agenor Martinho Correa ◽  
...  
Keyword(s):  
Linear Regression ◽  
Mato Grosso ◽  
Mato Grosso Do Sul ◽  
Selection Of

scholarly journals O Efeito de Substratos Orgânicos no Crescimento Inicial de Pitaya Vermelha Cultivada em Campo Grande, Mato Grosso do Sul

UNICIÊNCIAS ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 51-57
Author(s):  
Pâmella Gonçalves da Silva ◽  
Rosemary Matias ◽  
Ademir Kleber Morbeck de Oliveira
Keyword(s):  
Sandy Soil ◽  
Organic Fertilizers ◽  
Chicken Manure ◽  
Initial Growth ◽  
Family Farming ◽  
Development Environment ◽  
Mato Grosso ◽  
Sheep Manure ◽  
Mato Grosso Do Sul ◽  
Hylocereus Polyrhizus

O cultivo da pitaya (Hylocereus spp) foi introduzido, no Brasil, na década de 1990. No Estado de Mato Grosso do Sul, uma das espécies exploradas, dentro deste gênero, por produtores da agricultura familiar, é a Hylocereus polyrhizus (Weber) Britton & Rose. Apesar do crescimento da área cultivada existem poucas informações sobre as melhores condições para o cultivo das plantas, o que dificulta maiores ganhos em produtividade. Por este motivo, justifica-se investigar o uso de substratos para avaliar o crescimento inicial da pitaya, tais como: os orgânicos. Levando-se em consideração a importância da espécie para a agricultura familiar, objetivou-se avaliar o crescimento inicial de Hylocereus polyrhizus em diferentes substratos, enriquecidos com materiais de origem orgânica. O delineamento experimental foi o inteiramente casualizado em esquema fatorial 5 x 4 (5 tratamentos x 4 repetições), em que a espécie foi cultivada frente a três adubos orgânicos e duas testemunhas, durante 360 dias. Os tratamentos foram: T1 – testemunha (100% solo arenoso), T2 – testemunha (NPK), T3 – 90% solo arenoso + 10% de cama de frango, T4 – 80% solo arenoso + 20% esterco bovino e, T5 – 80% solo arenoso + 20% esterco ovino. Os resultados de crescimento inicial foram analisados aos 360 dias. A pitaya, quando em solos arenosos, cresce, floresce a frutifica mais rapidamente na condição do tratamento 4 (80% solo + 20% esterco bovino).   Palavras-chave: Desenvolvimento. Ambiente e Sustentabilidade. Hylocereus spp. Adubação Orgânica. Crescimento Inicial.   Abstract  The pitaya cultivation (Hylocereus spp) was introduced in Brazil in the 1990s. In the State of Mato Grosso do Sul, one of the species explored, within this genus, by family farmers, is Hylocereus polyrhizus (Weber) Britton & Rose. Despite the growth of the cultivated area, there is little information on the best conditions for the plants cultivation, which hinders greater gains in productivity. For this reason, it is justified to investigate the use of substrates to evaluate the pitaya initial growth, such as organic ones. Taking into account the importance of the species for family farming, the objective was to evaluate the initial growth of Hylocereus polyrhizus on different substrates, enriched with materials of organic origin. The experimental design was completely randomized in a 5 x 4 factorial scheme (5 treatments x 4 repetitions), where the species was grown before three organic fertilizers and two controls, for 360 days. The treatments were: T1 - control (100% sandy soil), T2 - control (NPK), T3 - 90% sandy soil + 10% chicken manure, T4 - 80% sandy soil + 20% bovine manure and, T5 - 80% sandy soil + 20% sheep manure. The results of initial growth were analyzed at 360 days. Pitaya, when in sandy soils, grows, blooms and bears fruit faster under treatment 4 (80% soil + 20% bovine manure).   Keywords: Development. Environment and Sustainability; Hylocereus spp. Organic Fertilization. Initial Growth.

scholarly journals GGE-BIPLOT OF MULTIVARIATE INDEX TO SELECT MAIZE PROGENIES FOR EFFICIENT ASSOCIATION WITH Azospirillum brasiliense1

2021 ◽  
Vol 34 (4) ◽  
pp. 739-751
Author(s):  
FELIPE CECCON ◽  
LIVIA MARIA CHAMMA DAVIDE ◽  
MANOEL CARLOS GONÇALVES ◽  
ADRIANO DOS SANTOS ◽  
ELAINE PINHEIRO REIS LOURENTE
Keyword(s):  
Selection Index ◽  
High Yield ◽  
Environment Interaction ◽  
Gge Biplot ◽  
Mato Grosso ◽  
Genotype Environment Interaction ◽  
Two Cities ◽  
The Stability ◽  
Mato Grosso Do Sul ◽  
Selection Of

ABSTRACT Maize is widely cultivated in Brazil, and nitrogen is a major nutrient for its yield. Azospirillum brasiliense bacteria help in plant nutrient supply; however, maize-Azospirillum symbiosis is not very efficient and requires selection of genotypes with a more efficient association. Multivariate indexes facilitate selection using a single value, and GGE-biplot analysis enables the visualization of the genotype-environment interaction from this value. The present study aimed to select progenies that effectively associate with the bacteria and study the efficiency of progeny selection using a multivariate index observed in the GGE-biplot method. The experiments were conducted in two cities in the state of Mato Grosso do Sul. In a simple 16 × 16 lattice, 256 genotypes were evaluated in the presence and absence of diazotrophic bacteria. PH, SL, SD, FI, HGM, SS, and GY were measured for the construction of a selection index. Genotypes exhibited significant genotype–environment interactions for all evaluated traits, allowing their use in the selection index. High-yield genotypes were not those with the highest selection index values. The traits GY, SD, HGM, SS, SL, and PH contributed the most to the construction of the index. The no-till system may have contributed to the weaker response of maize inoculated with Azospirillum brasiliense. Genotype 96 had the highest values of the characteristics used to calculate the GISI, along with the stability between environments.

scholarly journals First report of Amaranthus viridis resistance to herbicides

2014 ◽  
Vol 32 (3) ◽  
pp. 571-578 ◽  
Author(s):  
A.C. Francischini ◽  
J. Constantin ◽  
R.S. Oliveira JR. ◽  
G. Santos ◽  
G.B.P. Braz ◽  
...  
Keyword(s):  
Weed Control ◽  
Dose Response ◽  
Response Curves ◽  
Mato Grosso ◽  
First Report ◽  
Resistance To Herbicides ◽  
Dose Response Curves ◽  
Als Inhibitors ◽  
Mato Grosso Do Sul ◽  
Selection Of

Due to the limited number of herbicides registered for the control of dicot weeds in cotton crops, ALS inhibitors have been used on an intensive and recurrent basis. Given that, cases of poor weed control have been described after application of these herbicides in the main cotton producing areas in Brazil, the purpose of the present work was to evaluate the occurrence of resistance to ALS herbicides in Amaranthus viridis biotypes from those areas. Dose-response curves were prepared after pre-emergence applications of trifloxysulfuron-sodium (0; 1.8; 3.7; 7.5; 15 and 30 g ha-1) and pyrithiobac-sodium (0; 35; 70; 140; 280 and 560 g ha-1), equivalent to 0, ¼, ½, 1, 2 and 4 times the recommended commercial rates. The selection of trifloxysulfuron-sodium resistant biotypes of A. viridis was confirmed in samples from Bahia (BA 7, BA 8, BA 9 and BA 11). However, no resistance to pyrithiobac-sodium was found for biotypes either from Bahia or from Mato Grosso do Sul.

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