Periodicidade de oviposição de fêmeas de Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae) em laboratório e campo

Gomes, Adriana dos Santos Mendes; Sciavico, Célia J. de Sá; Eiras, Álvaro Eduardo

doi:10.1590/s0037-86822006000400002

Cited by 22 publications

(20 citation statements)

References 16 publications

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“…The oviposition time that we determined for Ae. aegypti is in agreement with that communicated by Gomes et al (2006). Morphological observations of the Cx.…”

Section: Discussionsupporting

confidence: 92%

Culex quinquefasciatus vitellogenesis: morphological and biochemical aspects

Cardoso

Cres

Moura

et al. 2010

Mem. Inst. Oswaldo Cruz

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“…The oviposition time that we determined for Ae. aegypti is in agreement with that communicated by Gomes et al (2006). Morphological observations of the Cx.…”

Section: Discussionsupporting

confidence: 92%

Culex quinquefasciatus vitellogenesis: morphological and biochemical aspects

Cardoso

Cres

Moura

et al. 2010

Mem. Inst. Oswaldo Cruz

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“…Factors such as temperature and rainfall are mentioned by various authors as critical for the establishment of mosquito populations in diverse environments (Glasser & Gomes 2002;Gomes et al 2006;Keating 2001;Ribeiro et al 2006;Stein et al 2005). These factors may influence survival, reproduction and changes in the distribution and density of vectors (Keating 2001), resulting in a positive relation to dengue transmission dynamics (Forattini 2002).…”

Section: 05) Where Increased Poi Was Observed On October/2007mentioning

confidence: 99%

Temporal distribution of Aedes aegypti Linnaeus (Diptera, Culicidae), in a Hospital in Cuiabá, State of Mato Grosso, Brazil

Carvalho-Leandro

Ribeiro

Rodrigues

et al. 2010

Rev. Bras. entomol.

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ABSTRACT. Temporal distribution of Aedes aegypti Linnaeus (Diptera, Culicidae), in a Hospital in Cuiabá, State of Mato Grosso, Brazil. This study aimed at registering and monitoring the presence of Aedes aegypti in the University Hospital Júlio Muller, Cuiabá-MT, as well as investigating the influence of temperature and rainfall on its temporal distribution and egg densities in ovitraps. The study was performed from April/2007 to March/2008, utilizing ovitraps with 10% of hay infusion and a wood paddle as an oviposition substrate. For surveillance, one ovitrap was placed in each of the 12 points distributed throughout the hospital. Ovitraps were collected monthly at the end of a 5-day installation period. After egg counting, wood paddles were immersed in water to allow larval eclosion for species identification through optical microscopy. Egg Density Index (EDI), Positive Ovitraps Index (POI), and Mean Number of Eggs (MNE) were used for data analysis. The presence of A. aegypti in the hospital was registered throughout the study period, except in July. The MNE was proportionally higher in the internal area (n= 8.47 eggs/paddle) when compared to the external area (n= 5.46 eggs/paddle), and was higher in September/October 2007 and January/February 2008. A significant increase in EDI, POI and MNE was registered in periods where the average temperature was higher, and the increase in POI was also concomitant with an increase in rainfall. The continuous presence of A. aegypti in the hospital throughout the study period, points out the need of including this mosquito in the arthropod control list in this environment. This is particularly important, considering that A. aegypti is an important vector of several arboviroses.

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“…The traps were placed in the morning (8 a.m. to 10 p.m.) and checked after 24h (Gomes et al 2006). The water and the attractant solutions in the traps were replaced daily during the reading of the MosquiTRAP.…”

Section: Experiments 4: Validation Of the Experimental Areamentioning

confidence: 99%

Calibration and evaluation of field cage for oviposition study with Aedes (Stegomyia) aegypti female (L.) (Diptera: Culicidae)

Roque¹,

Eiras²

2008

Neotrop. entomol.

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-Differences among results gathered from insect behavior studies conducted in laboratory and fi eld situations are due to ambient variables that differ greatly between both environments. In laboratory studies the environmental conditions can be controlled whereas in fi eld temperature, humidity and air velocity vary uncontrollably. The objective of this study was to calibrate and evaluate an experimental area (fi eld cage) (14 x 7 x 3.5 m) subdivided into eight test cages (2.5 x 2.5 x 2 m) for use in behavioral oviposition tests of Aedes aegypti (L.) mosquitoes for developing a new methodology to assess attractants and oviposition traps. Test cage calibration involved: (1) minimal experiment duration tests; (2) optimal female release number per traps test and (3) trap placement tests. All tests used gravid A. aegypti females; 3-4 days post blood meal and the sticky trap MosquiTRAP ® to catch adults. Ninety percent of the females released were recaptured 2h after the beginning of the experiment, and this allowed up to 32 test repetitions/day to be conducted in the fi eld cage. The minimum number of females necessary to conduct statistical analyses was 20 females/trap/test per cage. No signifi cant difference was found in the behavioral response of gravid females to four different trap positions within test cages. Field trapping results with attractant were similar to those in the fi eld cage. Therefore, the fi eld cage could replace fi eld trapping for evaluating at least mosquito traps and oviposition attractants for A. aegypti.KEY WORDS: Oviposition behavior, attractant, semi-fi eld, MosquiTRAP RESUMO -Discrepâncias entre resultados de estudos de comportamento de insetos em laboratório e em campo ocorrem devido a variáveis encontradas entre os ambientes. Enquanto em laboratório as condições são controladas, em campo os insetos são avaliados em condições variáveis de temperatura, umidade e velocidade do ar. O objetivo deste trabalho foi calibrar e avaliar uma área experimental (14 x 7 x 3,5 m) contendo oito gaiolas de teste (2,5 x 2,5 x 2 m), para estudos comportamentais de oviposição para Aedes aegypti (L.) visando desenvolver uma nova metodologia para avaliar atraentes e armadilhas de oviposição em semi-campo. A calibração consistiu na (1) determinação do tempo de realização dos experimentos e no (2) número de fêmeas liberadas por teste e na (3) avaliação das posições das armadilhas no interior das gaiolas de teste. Fêmeas de A. aegypti de 3-4 dias após repasto sangüíneo e MosquiTRAP ® foram utilizadas nos experimentos. Noventa por cento das fêmeas liberadas foram recapturadas após 2h do início dos experimentos, permitindo a realização de até 32 repetições/dia. A amostra mínima de fêmeas por experimento para a realização de análises estatísticas foi limitada a 20 fêmeas/armadilha/gaiola. Não foi observada diferença na resposta comportamental das fêmeas nas diferentes posições avaliadas. Resultados com MosquiTRAP em área urbana foram semelhantes aos do semi-campo. Portanto, a metodologia pode substitui...

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Periodicidade de oviposição de fêmeas de Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae) em laboratório e campo

Cited by 22 publications

References 16 publications

Culex quinquefasciatus vitellogenesis: morphological and biochemical aspects

Culex quinquefasciatus vitellogenesis: morphological and biochemical aspects

Temporal distribution of Aedes aegypti Linnaeus (Diptera, Culicidae), in a Hospital in Cuiabá, State of Mato Grosso, Brazil

Calibration and evaluation of field cage for oviposition study with Aedes (Stegomyia) aegypti female (L.) (Diptera: Culicidae)

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