ArticleMalaria journal2022
Anopheline diversity in urban and peri-urban malaria foci: comparison between alternative traps and seasonal effects in a city in the Western Brazilian Amazon.
Article in Malaria journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Biochemical Responses of Anopheles spp. Larvae to a Novel Brazilian BR101 Bacillus thuringiensis var. israelensis Formulation: Oxidative Stress, Detoxification Enzymes, and Safety for Nontarget Notonectidae and Gerridae Aquatic Insects.Chemistry & biodiversity · 2026Article
- First report of immature forms of Anopheles albitarsis s.l. (Diptera: Culicidae) collected in artificial containers in an urban area of the state of Acre, Western Brazilian Amazon.Revista da Sociedade Brasileira de Medicina Tropical · 2026Article
- Behavioural responses of Anopheles darlingi (Diptera: Culicidae) to host odours: insights from vertical and horizontal olfactometers.Memorias do Instituto Oswaldo Cruz · 2026Article
- Experimental hut resting and entrance behaviour of Anopheles darlingi from Zungarococha, a malaria endemic community in Loreto, Northern Peruvian Amazon.Malaria journal · 2025Article
- Co-occurrence of malaria and Chagas disease in the Brazilian Amazon: the need for integrated health surveillance.Cadernos de saude publica · 2025Article
- Characterization of larval habitats of Anopheles (Nyssorhynchus) darlingi and associated species in malaria areas in western Brazilian Amazon.Memorias do Instituto Oswaldo Cruz · 2024Article
- Amazonian Anopheles with low numbers of oocysts transmit Plasmodium vivax sporozoites during a blood meal.Scientific reports · 2022Article
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Abstract
backgroundContinuous vector surveillance and sustainable interventions are mandatory in order to prevent anopheline proliferation (or spread to new areas) and interrupt malaria transmission. Anopheline abundance and richness were evaluated in urban and peri-urban malaria foci at a medium-sized city in the Brazilian Amazon, comparing the protected human landing catch technique (PHLC) and alternative sampling methods over different seasonal periods. Additional information was assessed for female feeding behaviour and faunal composition.
methodsAnophelines were sampled bimonthly in four urban and peri-urban sites in the city of Porto Velho, state of Rondônia, Brazil. The average number of captured mosquitoes was compared between an PHLC (gold standard), a tent trap (Gazetrap), and a barrier screen by means of generalized linear mixed models (GLMM), which also included season and environment (peri-urban/urban) as predictors.
resultsOverall, 2962 Anopheles individuals belonging to 12 species and one complex were caught; Anopheles darlingi represented 86% of the individuals. More mosquitoes were captured in the peri-urban setting, and the urban setting was more diverse. The model estimates that significantly more anophelines were collected by PHLC than by the Screen method, and Gazetrap captured fewer individuals. However, the Screen technique yielded more blood-engorged females. The peak hours of biting activity were from 6 to 7 p.m. in urban areas and from 7 to 8 p.m. in peri-urban areas.
conclusionsAlthough peri-urban settings presented a greater abundance of anophelines, Shannon and Simpson diversities were higher in urban sites. Each technique proved to be useful, depending on the purpose: PHLC was more effective in capturing the highest anopheline densities, Gazetrap caught the greatest number of species, and the barrier screen technique captured more engorged individuals. There was no seasonal effect on Anopheles assemblage structure; however, a more diverse fauna was caught in the transitional season. Biting activity was more intense from 6 to 8 p.m., with a predominance of An. darlingi.
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