Biologia e exigências térmicas de Aedes aegypti (L.) (Diptera: Culicidae) provenientes de quatro regiões bioclimáticas da Paraíba

Beserra, Eduardo B.; Castro, Francisco P. de; Santos, J. W. dos; Santos, Thaís da Cruz Alves dos; Fernandes, Carina

doi:10.1590/s1519-566x2006000600021

Cited by 70 publications

(62 citation statements)

References 5 publications

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“…That result was expected, because studies have found an association between dengue risk and temperatures above 26°C, with temperatures from 21°C to 29°C favoring the development of Ae. aegypti, and from 22°C to 30°C, the longevity and fertility of the adults 2,33 .…”

Section: Discussionmentioning

confidence: 99%

Temporal analysis of the relationship between dengue and meteorological variables in the city of Rio de Janeiro, Brazil, 2001-2009

Gomes¹,

Nobre²,

Cruz³

2012

Cad. Saúde Pública

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Dengue, a reemerging disease, is one of the most important viral diseases transmitted by mosquitoes. Climate is considered an important factor in the temporal and spatial distribution of vector-transmitted diseases. This study examined the effect of seasonal factors and the relationship between climatic variables and dengue risk in the city of Rio de Janeiro, Brazil, from 2001 to 2009. Generalized linear models were used, with Poisson and negative binomial distributions. The best fitted model was the one with "minimum temperature" and "precipitation", both lagged by one month, controlled for "year". In that model, a 1°C increase in a month's minimum temperature led to a 45% increase in dengue cases in the following month, while a 10-millimeter rise in precipitation led to a 6% increase in dengue cases in the following month. Dengue transmission involves many factors: although still not fully understood, climate is a critical factor, since it facilitates analysis of the risk of epidemics.

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Section: Discussionmentioning

confidence: 99%

Temporal analysis of the relationship between dengue and meteorological variables in the city of Rio de Janeiro, Brazil, 2001-2009

Gomes¹,

Nobre²,

Cruz³

2012

Cad. Saúde Pública

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“…Não foram observadas diferenças signifi cativas quanto à duração do período embrionário e sobrevivência dos ovos de A. aegypti criados em cinco densidades larvais quando a quantidade de alimento oferecido foi ou não ajustada em relação à densidade larval (Tabelas 1 e 2). Porém, para o bioensaio 2 constatou-se maior duração e diminuição da sobrevivência do ovo em relação ao bioensaio 1, discordando dos resultados verifi cados por Beserra et al (2006) O aumento da densidade foi prejudicial ao desenvolvimento larval de A. aegypti em relação às demais fases do desenvolvimento em função da disponibilidade de alimento. A duração do desenvolvimento larval aumentou de 8,3 dias na densidade de 200 larvas/l, para 37,9 dias na de 1250 larvas/l quando se ofertaram 100 mg de ração/bandeja (Tabela 1).…”

Section: Resultsunclassified

“…Quando o alimento oferecido foi proporcional à quantidade de larvas (Bioensaio 2, Tabela 2), não ocorreram efeitos negativos e a duração do desenvolvimento larval permaneceu praticamente constante, caindo de 8,3 dias a 200 larvas/l, para cerca de 6,0 dias para as demais densidades, o que está em acordo com os resultados de Beserra et al (2006). Assim como relatado para outros insetos (Agnew et al 2000, Olejnícek & Gelbic 2000, Hooper et al 2003, a densidade populacional de A. aegypti está relacionada à quantidade de alimento disponível.…”

Section: Resultsunclassified

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Relação entre densidade larval e ciclo de vida, tamanho e fecundidade de Aedes (Stegomyia) aegypti (L.) (Diptera: Culicidae) em laboratório

Beserra¹,

Fernandes

Ribeiro³

2009

Neotrop. entomol.

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-We focused on the evaluation of the infl uence that the larval density have on the life cycle, size and fecundity of Aedes aegypti (L.). The bioassays were conducted at 26 ± 2ºC and at 12h light. Five larval densities (200, 500, 750, 1000 and 1250 larvae/l) and two feeding systems (one with a fi xed amount of 100 mg of food, and other with an amount of food proportional to the number of larvae/ tray) were tested. Egg and larval development time and survivorship, sex ratio, longevity, fecundity and the size of adults were evaluated on a daily basis. The life cycle of A. aegypti was signifi cantly affected by the density when offered 100 mg of food per tray. The period of larval development increased from 8.3 to 37.9 days whereas female fecundity and wing length decreased from 105.7 to 41.8 eggs/ female and from 4.6 mm to 3.6 mm, respectively, by changing from a density of 200 to 1250 larvae/l. Signifi cant differences of these variables were not detected when offering 1.9 mg of food per larvae, except for the size of the adults. Females emerged from rearing densities of 1250 larvae/l grew larger, with an average wing length of 5.2 mm.

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“…This factor is important, not just in increasing the chances of survival, but also in guaranteeing the emergence of a large number of adults. 3,5 Geier et al 15 (1999) showed in a laboratory, that ammonium nitrate is a chemical component which attracts the Aedes aegypti mosquito to their host. That females are attracted to nitrogenous compounds, was also verifi ed by Sunish et al 19 (2003) in egg laying by the Japanese encephalitis vector Culex tritaeniorhynchus.…”

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confidence: 99%

Água de abastecimento público de consumo humano e oviposição de Aedes aegypti

Marques¹,

Chaves²,

Serpa³

et al. 2013

Rev. Saúde Pública

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OBJECTIVE:To evaluate the effect of the quality of publicly supplied water in domestic water tanks on egg laying by female Aedes aegypti. METHODS:Laboratory study on immature Ae. aegypti, collected from watertanks in the municipality of Potim, SP, Southeastern Brazil. Each cage contained three types of water in which eggs could be laid: Three choice per test were simultaneously used to deposit the eggs, ovipositor (A) with water collected from a water tank in Taubaté, ovipositor (B) with distilled water (control) and ovipositor (C) water collected from a water tank in the municipality of Potim. Physiochemical parameters were analyzed. The Kruskall-Wallis test was used to analyze the mean number of eggs in each water sample and the Dwass-SteelCritchlow-Fligner test was used in making comparisons. To evaluate egg laying, an ovipositional activity index was adopted. RESULTS:A signifi cant difference in the number of eggs was found between the liquid solutions tested (H = 45; p < 0.0001). The number of eggs found in water tank samples originating from deep wells (C), was statistically superior to water samples from water tanks originating from superfi cial wells (A) (p < 0.0001) and from the Control (C) p < 0.0001. There was no signifi cant difference between the number of eggs in Control (B) and the surface water (A). In all three tests, the fi rst position was the most productive in all tested solutions. Only water sample (C) produced a positive index (0.54), i.e., attractive to egg laying. CONCLUSIONS:Water quality infl uences egg laying by Aedes aegypti. The high concentrations of ammonium nitrate in public water supplies suggest that this chemical component was responsible for attracting pregnant female Aedes aegypti to lay eggs in these environments.

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Biologia e exigências térmicas de Aedes aegypti (L.) (Diptera: Culicidae) provenientes de quatro regiões bioclimáticas da Paraíba

Cited by 70 publications

References 5 publications

Temporal analysis of the relationship between dengue and meteorological variables in the city of Rio de Janeiro, Brazil, 2001-2009

Temporal analysis of the relationship between dengue and meteorological variables in the city of Rio de Janeiro, Brazil, 2001-2009

Relação entre densidade larval e ciclo de vida, tamanho e fecundidade de Aedes (Stegomyia) aegypti (L.) (Diptera: Culicidae) em laboratório

Água de abastecimento público de consumo humano e oviposição de Aedes aegypti

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