Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil

Póvoa, Marinete Marins; Wirtz, Robert A.; Lacerda, Raimundo Nonato da Luz; Miles, MA; Warhurst, David C.

doi:10.1590/s0074-02762001000200008

Cited by 90 publications

(98 citation statements)

References 12 publications

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“…nuneztovari has widely been suspected to be an effective malaria vector in Suriname (Panday 1979). Many other additional neotropical species have been proposed as potentially important local or regional vectors based on malaria parasite detection using ELISA or dissecting techniques (Lounibos & Conn 2000, Povoa et al 2001, Galardo et al 2007.…”

Section: Parous Rates and Vci -mentioning

confidence: 99%

Anopheles darlingi bionomics and transmission of Plasmodium falciparum, Plasmodium vivax and Plasmodium malariae in Amerindian villages of the Upper-Maroni Amazonian forest, French Guiana

Girod

Gaborit

Carinci

et al. 2008

Mem. Inst. Oswaldo Cruz

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Section: Parous Rates and Vci -mentioning

confidence: 99%

Anopheles darlingi bionomics and transmission of Plasmodium falciparum, Plasmodium vivax and Plasmodium malariae in Amerindian villages of the Upper-Maroni Amazonian forest, French Guiana

Girod

Gaborit

Carinci

et al. 2008

Mem. Inst. Oswaldo Cruz

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“…nuneztovari has been found infected with Plasmodium sp. [5][6][7][8][9] Although most Brazilian populations are exophagic and mainly zoophilic, with a peak biting time around sunset, in some localities in Pará state, anthropophagic and endophagic behaviors have been encountered, 10 and it has been incriminated as a local vector in Amapá State. 9 Overall, An.…”

Section: Introductionmentioning

confidence: 99%

Mitochondrial DNA Detects a Complex Evolutionary History with Pleistocene Epoch Divergence for the Neotropical Malaria Vector Anopheles nuneztovari Sensu Lato

Scarpassa

Conn²

2011

The American Society of Tropical Medicine and Hygiene

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Abstract. Cryptic species and lineages characterize Anopheles nuneztovari s.l. Gabaldón, an important malaria vector in South America. We investigated the phylogeographic structure across the range of this species with cytochrome oxidase subunit I ( COI ) mitochondrial DNA sequences to estimate the number of clades and levels of divergence. Bayesian and maximum-likelihood phylogenetic analyses detected four groups distributed in two major monophyletic clades (I and II). Samples from the Amazon Basin were clustered in clade I, as were subclades II-A and II-B, whereas those from Bolivia/Colombia/ Venezuela were restricted to one basal subclade (II-C). These data, together with a statistical parsimony network, confirm results of previous studies that An. nuneztovari is a species complex consisting of at least two cryptic taxa, one occurring in Colombia and Venezuela and the another occurring in the Amazon Basin. These data also suggest that additional incipient species may exist in the Amazon Basin. Divergence time and expansion tests suggested that these groups separated and expanded in the Pleistocene Epoch. In addition, the COI sequences clearly separated An. nuneztovari s.l. from the closely related species An. dunhami Causey, and three new records are reported for An. dunhami in Amazonian Brazil. These findings are relevant for vector control programs in areas where both species occur. Our analyses support dynamic geologic and landscape changes in northern South America, and infer particularly active divergence during the Pleistocene Epoch for New World anophelines.* Address correspondence to Vera Margarete Scarpassa, Instituto Nacional de Pesquisas da Amazônia, Avenida André Araujo, no. 2936, Bairro Aleixo, Manaus, CEP 69060-001, Amazonas, Brazil. E-mail: vera@inpa.gov.br 858 SCARPASSA AND CONN field-collected specimens or crossing experiments between suspected taxa, distinct modes and rates of evolu tion of the various molecular markers used, and a recent temporal framework for evolutionary processes within An. nuneztovari s.l. 30 CURRENT TAXONOMIC SITUATION Anopheles nuneztovari was originally described from San Carlos, Cojedes State, in western Venezuela, on the basis of on male genitalia. 31 Rozeboom and Gabaldón 32 described An. goeldii from morphology of eggs, larvae, females, and males collected in Belterra (Fortlandia), on the Tapajós River, in Pará State, Brazil. ( Figure 1 ).We investigated the phylogeographic structure of An. nuneztovari s.l. from 17 localities in northern South America (Amazonian Brazil, Bolivia, Colombia, Suriname, and Venezuela) to estimate the number of clades and levels of divergence by using an 873-basepair fragment of the mtDNA COI gene. Within Amazonian Brazil, we included 11 localities, 5 of which have not been studied (MA, PI, BR, CS, CR; Figure 1 ), to address three questions. 1) How many lineages exist within Table 1 MATERIALS AND METHODSMosquito collection and identification. Samples of An. nuneztovari s.l. were collected from 11 sites in Amazonian Brazil (MA, NM, B...

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“…marajoara appears to be the primary malaria vector in Serra do Navio, state of Amapá (Póvoa et al 2000b well as in Boa Vista, state of Roraima (Silva-Vasconcelos et al 2002). An.…”

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confidence: 99%

The importance of Anopheles albitarsis E and An. darlingi in human malaria transmission in Boa Vista, state of Roraima, Brazil

Póvoa

Souza

Lacerda

et al. 2006

Mem. Inst. Oswaldo Cruz

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In several districts of Boa Vista, state of Roraima, Brazil we found Anopheles (Nyssorhynchus) albitarsis E to be the primary vector of human malaria parasites, and during 2001-2002 it was significantly more abundant than An. darlingi (p < 0.001). Other species sampled were An. (Nys.) braziliensis, An. (Ano.) peryassui, An. (Nys.) nuneztovari, An. (Nys.) oswaldoi s.l., and An. (Nys.) triannulatus. As determined by the ELISA technique An. darlingi had a higher overall infection rate (2.1%) compared with An. albitarsis E (1.2%). However, a marginally higher proportion of An. albitarsis E was infected with Plasmodium vivax compared with An. darlingi, and the An. albitarsis E biting index was also much higher. These results suggest the importance of An. albitarsis E in malaria transmission in a savannah ecoregion of northern Amazonian Brazil, and reconfirm the importance of An. darlingi even if at lower abundance

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Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil

Abstract: We conducted a survey to determine the vectors of malaria in six localities of Serra do Navio municipality, State of Amapá, from 1990 to 1991. Malaria infection rates of 29.3%, 6.2% and 20.4%

Cited by 90 publications

References 12 publications

Anopheles darlingi bionomics and transmission of Plasmodium falciparum, Plasmodium vivax and Plasmodium malariae in Amerindian villages of the Upper-Maroni Amazonian forest, French Guiana

Anopheles darlingi bionomics and transmission of Plasmodium falciparum, Plasmodium vivax and Plasmodium malariae in Amerindian villages of the Upper-Maroni Amazonian forest, French Guiana

Mitochondrial DNA Detects a Complex Evolutionary History with Pleistocene Epoch Divergence for the Neotropical Malaria Vector Anopheles nuneztovari Sensu Lato

The importance of Anopheles albitarsis E and An. darlingi in human malaria transmission in Boa Vista, state of Roraima, Brazil

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