Efeitos da temperatura no ciclo de vida, exigências térmicas e estimativas do número de gerações anuais de Aedes aegypti (Diptera, Culicidae)

Beserra, Eduardo B.; Fernandes, Carina; Silva, Suêide A. de O.; Silva, Lilian A. da; Santos, J. W. dos

doi:10.1590/s0073-47212009000200004

Cited by 40 publications

(53 citation statements)

References 8 publications

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“…The impact of temperature and humidity on the life-history, physiology, behaviour and ecology of Ae. aegypti has been extensively investigated under laboratory conditions [108][109][110][111][112][113][114][115][116] [99]. Such variability seems to be common and related to optimal humidity and temperature conditions available during such hours [117,118].…”

Section: Discussionmentioning

confidence: 99%

The Mosquito Electrocuting Trap As An Exposure-Free Method For Measuring Human Biting Rates ByAedesMosquito Vectors

Ortega-López

Pondeville

Kohl

et al. 2019

Preprint

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BackgroundEntomological monitoring of Aedes vectors has largely relied on surveillance of larvae, pupae and non-host-seeking adults, which have been poorly correlated with human disease incidence. Exposure to mosquito-borne diseases can be more directly estimated using Human Landing Catches (HLC), although this method is not recommended for Aedes-borne arboviruses.We evaluated a new method previously tested with malaria vectors, the Mosquito Electrocuting Trap (MET) as an exposure-free alternative for measuring landing rates of Aedes mosquitoes on people. Aims were to 1) compare the MET to the BG-sentinel (BGS) trap gold standard approach for sampling host-seeking Aedes vectors; 2) characterize the diel activity of Aedes vectors and their association with microclimatic conditions. MethodsThe study was conducted over 12 days in Quinindé -Ecuador in May 2017. Mosquito sampling stations were set up in the peridomestic area of four houses. On each day of sampling, each house was allocated either a MET or a BGS trap, which were rotated amongst the four houses daily in a Latin square design. Mosquito abundance and microclimatic conditions were recorded hourly at each sampling station between 07:00-19:00 hours to assess variation between vector abundance, trapping methods, and environmental conditions. All Aedes aegypti females were tested for the presence of Zika (ZIKV), dengue (DENV) and chikungunya (CHIKV) viruses.3 ResultsA higher number of Ae. aegypti females were found in MET than in BGS collections, although no statistically significant differences in mean Ae. aegypti abundance between trapping methods were found. Both trapping methods indicated female Ae. aegypti had bimodal patterns of host seeking, being highest during early morning and late afternoon hours. Mean Ae. aegypti daily abundance was negatively associated with daily temperature. No infection by ZIKV, DENV or CHIKV was detected in any Aedes mosquitoes caught by either trapping method. ConclusionWe conclude the MET performs at least as well as the BGS standard, and offers the additional advantage of direct measurement of per capita human biting rates. If detection of arboviruses can be confirmed in MET-collected Aedes in future studies, this surveillance method could provide a valuable tool for surveillance and prediction on human arboviral exposure risk. BACKGROUNDMosquito--borne viruses (arboviruses) are an important cause of diseases in humans and animals. In 2017, estimates suggested that mosquitoes were responsible for approximately 137 millions human arboviral infections with dengue (DENV), chikungunya (CHIKV), and Zika virus (ZIKV) being the most important [1]. Arbovirus transmission to humans depends on multiple factors that involve spatial movement and immunity of human populations [2-7], socioeconomic factors and access to basic services (especially water) [8][9][10][11], and the ecology and distribution of the mosquito vectors that transmit them [12][13][14][15][16][17][18][19]. These factors combine to determine the distribution and intens...

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Section: Discussionmentioning

confidence: 99%

The Mosquito Electrocuting Trap As An Exposure-Free Method For Measuring Human Biting Rates ByAedesMosquito Vectors

Ortega-López

Pondeville

Kohl

et al. 2019

Preprint

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“…Com esses dados foi realizada uma análise de agrupamento ("Cluster analyses"), utilizandose uma matriz de distância euclidiana através do método da média não-ponderada, para se avaliar o grau de similaridade entre as populações estudadas (Beserra et al, 2003). Para a fase larval, o período de desenvolvimento foi considerado longo (9,1 a 10,8 dias) se confrontado à duração média observada para indivíduos de A. aegypti coletados em outros municípios da Paraíba como Boqueirão (5,6 dias) e Remígio (5,2 dias) (Beserra et al, 2009b) (Vargas et al, 2010;Mohammed & Chadee, 2011).…”

Section: Methodsunclassified

Ciclos de vida comparados de Aedes aegypti (Diptera, Culicidae) do semiárido da Paraíba

Castro

Martins

Lilioso

et al. 2013

Iheringia, Sér. Zool.

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ABSTRACT. Life cycles compared to Aedes aegypti (Diptera, Culicidae) in the semi-arid region of Paraíba. The present work aims at comparing the life cycle between samples from different populations of Aedes aegypti (Linnaeus, 1762) collected in ten municipalities in the semi-arid region of state of Paraíba, Brazil. The life cycles were studied under 26 ± 2°C, a relative humidity of 60 ± 10% and a 12 h photophase. The development period, egg viability, and larval and pupal survival, were evaluated daily, as well as the sex ratio, longevity, size, and fecundity of adults. We performed a cluster analysis, using a Euclidean distance matrix by the method of unweighted mean. The duration and viability for the egg, larval and pupal stages had, respectively, an average change of 3.7 to 4.7 days and 82.8% to 97.7%, from 9.1 to 10.8 days and 91.2% to 99.2%, and 2.1 to 2.5 days and 93.5% to 98.4%. The wing length ranged from 5.13 to 5.34 mm for females and from 4.18 to 4.25 mm for males. The population of A. aegypti originated from Pedra Lavrada registered the lowest fecundity (153.6 eggs/female), while the highest fecundity (310.6 eggs/female) was observed in Campina Grande. Cluster analysis based on the similarity of biological data revealed the formation of two major distinct groups, where populations of A. aegypti from Serra Branca and Cuité show greater similarity to each other. Differences in biological cycles were observed among populations of A. aegypti, demonstrating the ability of this species to vary in its biology and adapt to different environmental conditions. This may increase the number of A. aegypti that stay in these areas, thus increasing the risk of the dengue virus.

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“…O tempo de desenvolvimento do Aedes aegypti (as fases de ovo-larvaadulto) ocorre em um período que varia entre 5 e 7 dias; o período de incubação do vírus da doença (Dengue) no mosquito, varia entre 8 a 12 dias; o período de incubação do vírus no organismo do homem, pode variar de 2 a 10 dias; e o período para o indivíduo procurar o médico, realizar o exame e ocorrer a notificação, leva em média 7 dias (FIOCRUZ, 2019). Assim, considerando o prazo mínimo e máximo de todo o processo, levam de 22 e 36 a depender de as condições ambientais serem mais ou menos favoráveis ao mosquito e ao vírus (BRASIL, 2002;BESERRA et al 2009;VALLE, 2013). Considerou-se o período entre o vigésimo segundo e o trigésimo sexto dia para estimar a mediana da moda da TS e o acumulado da moda da precipitação (LIMA e BARROZO, 2018).…”

Section: Aquisição De Dados E Pré-processamentounclassified

LIMIARES DE TEMPERATURA DE SUPERFÍCIE E PLUVIOSIDADE COMO INDICADOR DE RISCO DE PROLIFERAÇÃO DE Aedes aegypti NO MUNICÍPIO DE SÃO PAULO

Lima¹,

Barrozo²,

Mataveli³

2020

RCG

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O Aedes aegypti é um vetor de agentes de doenças que tem caráter epidêmico como dengue, febre amarela urbana, chikungunya e Zika. Algumas estratégias têm sido adotadas para conter a dispersão desse mosquito, entretanto, ainda não foi alcançado o resultado desejado. A identificação de condições meteorológicas como temperatura de superfície e precipitação pluviométrica em escalas finas, junto com outras ações, pode contribuir para o controle da proliferação do A.aegypti. Neste sentido, foi realizada uma análise temporal de sete anos do valor máximo e mínimo da temperatura de superfície e precipitação pluviométrica acumulada associado à presença de A.aegypti para cada distrito da cidade de São Paulo. Para abstração desses valores, foram correlacionados produtos de sensoriamento remoto com casos autóctones de dengue. Os limiares encontrados para todo o município mostraram 55% de precisão, 35% de erro e 10% foram inconclusivos devido à falta de dados de satélite por cobertura de núvens. No entanto, quando analisados individualmente alguns distritos atingiram uma precisão superior a 70%. Este estudo apresenta pela primeira vez estimativas de limiares de variáveis meteorológicas em escala fina associadas à presença deste mosquito e torna possível identificar potenciais áreas de risco para a proliferação do A.aegypti com uma semana de antecedência.

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Efeitos da temperatura no ciclo de vida, exigências térmicas e estimativas do número de gerações anuais de Aedes aegypti (Diptera, Culicidae)

Cited by 40 publications

References 8 publications

The Mosquito Electrocuting Trap As An Exposure-Free Method For Measuring Human Biting Rates ByAedesMosquito Vectors

The Mosquito Electrocuting Trap As An Exposure-Free Method For Measuring Human Biting Rates ByAedesMosquito Vectors

Ciclos de vida comparados de Aedes aegypti (Diptera, Culicidae) do semiárido da Paraíba

LIMIARES DE TEMPERATURA DE SUPERFÍCIE E PLUVIOSIDADE COMO INDICADOR DE RISCO DE PROLIFERAÇÃO DE Aedes aegypti NO MUNICÍPIO DE SÃO PAULO

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