Abundância de culicídeos em área metropolitana preservada e suas implicações epidemiológicas

Taipe-Lagos, Carmen Beatriz; Natal, Délsio

doi:10.1590/s0034-89102003000300002

Cited by 60 publications

(37 citation statements)

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“…Essa espécie é antropofílica e capaz de viver em ambientes naturais, rurais ou até urbanos (Forattini et al 1981, 1995, Guimarães et al 2000, Taipe-Lagos & Natal 2003. Está amplamente distribuída no Brasil e em outros países da Região Neotropical (Forattini 2002) e possui importância para a saúde pública devido a sua competência vetora para arbovírus e filárias patogênicas (Rachou et al 1955, Forattini et al 1995, Macedo et al 1998, Lima & Ahid 2004.…”

Section: Introductionunclassified

Dimorfismo sexual alar em Aedes scapularis (Diptera: Culicidae)

2011

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Abstract:The sex in mosquitoes (Culicidae) is relevant for faunistic and epidemiological surveys because only females are competent to transmit pathogens. Sexual dimorphism comprising genitalia and cephalic appendages is ordinarily visible in culicids. Wings may be also dimorphic and thus be complementary to traditional sexing methods. Nevertheless, such dimorphism is not easily noticeable to direct observation. Aiming to formally describe the sexual dimorphism in Aedes scapularis, a mosquito species competent for virus and filariae, wings of males and females were compared using geometric morphometrics and multivariate statistics. We sampled populations from São Paulo and Pariquera-Açu municipalities (State of São Paulo). Concerning wing shape, the sexual dimorphism was evident from blind reclassification tests which were 100% accurate, independently of the geographical origin of samples. On the other hand, wing size was sexually dimorphic only in the population from Sao Paulo. Presumably, wing shape is evolutionarily more stable than its size, an interpretation which is in accordance with the theory posed by Dujardin (2008b). That theory indicates wing shape would be composed of genetically-determined quantitative characters, and marginally influenced by non-genetic factors, whereas wing size would be more labile and predominantly influenced by the environment. Resumo: A detecção do sexo de mosquitos da família Culicidae é importante em estudos faunísticos e epidemiológicos, pois somente as fêmeas possuem competência vetora para patógenos. O dimorfismo sexual de genitália e de apêndices cefálicos é, em geral, facilmente visível em culicídeos. As asas também podem ser dimórficas e assim poderiam complementar o procedimento de sexagem. No entanto, tal distinção não é facilmente notável à observação direta. Visando descrever formalmente o dimorfismo sexual alar em Aedes scapularis, um culicídeo vetorialmente competente para arbovírus e filárias, asas de machos e fêmeas foram comparadas usando-se métodos de morfometria geométrica e análise estatística multivariada. Nestas análises, populações dos municípios São Paulo e Pariquera-Açu (Estado de São Paulo) foram amostradas. A forma das asas mostrou evidente dimorfismo sexual, o que permitiu um índice de acurácia de 100% em testes-cegos de reclassificação, independentemente da origem geográfica. Já o tamanho alar foi sexualmente dimórfico apenas na população de São Paulo. Aparentemente, a forma alar é evolutivamente mais estável que o tamanho, interpretação que está de acordo com a teoria de Dujardin (2008b), de que a forma alar de insetos seria composta por caracteres genéticos quantitativos e pouco influenciada por fatores não-genéticos, enquanto que o tamanho alar seria predominantemente determinado por plasticidade decorrente de influências ambientais. Palavras-chave: Aedini, Ochlerotatus, microevolução, mosquito, vetor.

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Section: Introductionunclassified

Dimorfismo sexual alar em Aedes scapularis (Diptera: Culicidae)

2011

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“…Although various studies have already been carried out in fragments of green areas inside urban Sã o Paulo, the data accumulated from these studies are not comprehensive enough to allow us to claim that all the Culicidae fauna in these areas are known (Urbinatti et al 2001, Taipe-Lagos & Natal 2003, Montes 2005. Comparison of the findings of a preliminary study (Medeiros-Sousa et al 2013) of Carmo Park and Chico Mendes Park with the data from the present study, which found nineteen taxons in Carmo Park, shows that eleven of these taxons had already been recorded and that eight were found here for the first time.…”

Section: Discussionmentioning

confidence: 99%

Mosquito (Diptera: Culicidae) fauna in parks in greater São Paulo, Brazil

et al. 2015

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Municipal parks in the city of Sã o Paulo, which are used for leisure purposes, contain remnants of the flora of the Atlantic Forest, as well as lakes and springs, and are home to mammals, birds and arthropods, some of which can be vectors of disease. The eastern side of the city has the largest population in Sã o Paulo and twenty-four municipal parks. The aim of this study was to investigate Culicidae fauna in two parks on this side of the city and to determine which of the Culicidae species identified have the potential to act as bioindicators and vectors of human pathogens. Culicidae were collected monthly between March 2011 and February 2012 in Carmo Park and Chico Mendes Park with battery-powered aspirators, Shannon traps and CDC traps for adult mosquitoes, and larval dippers and suction samplers for immature mosquitoes. To confirm sample sufficiency, the EstimateS program was used to plot sample-based species accumulation curves and estimate total richness by the Jackknife 1 method. In all, 1,092 culicids from nine genera (Aedes, Anopheles, Coquillettidia, Culex, Limatus, Mansonia, Trichoprosopon, Toxorhynchites and Uranotaenia) and nineteen taxonomic units were collected in Carmo Park. Coquillettidia venezuelensis (Theobald 1912), Aedes scapularis (Rondani 1848) and Culex (Culex) spp. Linnaeus 1758 were the most abundant adults, and Culex (Melanoconion) spp. Theobald 1903 and Anopheles strodei Root 1926 the most abundant immature mosquitoes. In Chico Mendes Park 4,487 mosquitoes in six genera and eighteen taxonomic units were collected. Culex (Cux.) spp. and Ae. scapularis were the most abundant adults, and Ae. albopictus (Skuse 1984) the most abundant immature mosquitoes. The species accumulation curves in both parks were close to the asymptote, and the total richness estimate was close to the observed richness. Some culicid taxons are bioindicators of environmental conditions in the areas they inhabit. It is important to monitor native fauna in municipal parks in Sã o Paulo as various species in this study were found to have vector competence and capacity to transmit pathogens, such as arboviruses. Keywords: Diversity, culicids, mosquitoes, municipal parks.PAULA, M.B., FERNANDES, A., MEDEIROS-SOUSA, A.R., CERETTI-JUNIOR, W., CHRISTE, R.O., STROEBEL, R., PEDROSA, L., ALMEIDA, R., CARVALHO, G.C., PEREIRA, U., JACINTHO, M., NATAL, D., MARRELLI, M.T.

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“…Em 2006, o vírus foi isolado em duas províncias na Argentina. Com a proximidade entre o Brasil e a Argentina, a possibilidade da introdução do vírus em território brasileiro deve ser vista com cautela [9][10][11] .…”

Section: Discussionunclassified

Presença de mosquitos (Diptera: Culicidae) em piscinões na zona leste de São Paulo

Silvério

Urbinatti

2011

Rev. Soc. Bras. Med. Trop.

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Introduction:Alterations in the environment contribute to changes in weather patterns, which cause an increase in rainfall, which causes flooding. Flooding has been addressed by building reservoirs, called piscinões, to contain the excess rain. In this report, we evaluated the Culicidae fauna of epidemiological importance in the reservoirs of Caguaçu and Inhumas. Methods: Monthly collections were performed in both reservoirs, which are situated in the Eastern section of the City of São Paulo. Monthly collections of Culicidae were undertaken using the entomological scoop method and a battery aspirator during the period between March 2006 and February 2007. Descriptive statistical and simple linear regression analyses of the data were carried out. Results: A total of 8,917 Culicidae mosquitoes were collected. The majority of the insects captured were of Culex (Culex) quinquefasciatus, representing 98.9% of the specimens identified in the Inhumas and 95.2% of those identified in Caguaçu. In the Caguaçu reservoir, the greatest frequency of immature mosquitoes was observed in the spillway (61%). In the Inhumas reservoir, the greatest occurrence of immature Culicidae was detected in the channel (42.6%). The linear regression analysis showed that 87% of the larvae in the third and fourth stages and 60% of the pupae were collected during periods of rainfall. In the Inhumas reservoir, 36% of the larvae and 18% of the pupae were collected during periods of rainfall. Conclusions: Culex quinquefasciatus, a vector for agents of filariasis and arbovirus diseases and a nuisance to the human population, was frequent in both environments. Methods of control of the species in the studied dams are necessary to reduce their epidemiological potential.

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Abundância de culicídeos em área metropolitana preservada e suas implicações epidemiológicas

Abstract: The most frequent and abundant species have been implicated in disease transmission to man in other regions. Attention must be given to these Culicidae since the study area is located near to an urban center, which could amplify the conditions for spreading vector diseases.

Cited by 60 publications

References 12 publications

Dimorfismo sexual alar em Aedes scapularis (Diptera: Culicidae)

Dimorfismo sexual alar em Aedes scapularis (Diptera: Culicidae)

Mosquito (Diptera: Culicidae) fauna in parks in greater São Paulo, Brazil

Presença de mosquitos (Diptera: Culicidae) em piscinões na zona leste de São Paulo

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