Vector bionomics and malaria transmission in the Upper Orinoco River, Southern Venezuela

Magris, Magda; Rubio-Palis, Yasmín; Menares, Cristóbal; Villegas, Leopoldo

doi:10.1590/s0074-02762007005000049

Cited by 66 publications

(94 citation statements)

References 29 publications

(31 reference statements)

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“…Similar results have been reported for An. darlingi in state of Amazonas (AM), Venezuela (Magris et al 2007 (Moreno et al 2007) and AM (Magris et al 2007) and also provided information about the role of An. marajoara as an emerging malaria vector in the region.…”

Section: Discussionmentioning

confidence: 99%

“…There are reports in Venezuela of biting rates that varied from 5.8-1,265 An. darlingi bites/person/night in different geographical areas (Rubio-Palis 1995, Magris et al 2007, Moreno et al 2007). In Brazil, Tadei and Dutary-Thatcher (2000) reported biting rates that varied from 0.13-53, whereas Galardo et al (2007) reported much higher rates in AP, varying between villages from 53.9-837.7.…”

Section: Discussionmentioning

confidence: 99%

“…The overall biting rate in the study area is very low (2.29 bites/ person/night) (Table). It is important to point out that the abundance of mosquitoes in a particular area depends on the complex interactions of several factors such as rainfall, the river's water level and the availability of suitable larval habitats, among others (Charlwood 1996, Tadei et al 1998, Magris et al 2007, Moreno et al 2007). …”

Section: Discussionmentioning

confidence: 99%

“…Other studies in Venezuela have shown a much higher EIR. In fact, for the principal malaria vector in Western Venezuela, Anopheles nuneztovari, an EIR of 10.5 infective bites/person/year was reported (Rubio-Palis et al 1992) whereas in the Upper Orinoco River, Magris et al (2007) reported 129 infective bites/person/year for An. darlingi.…”

Section: Discussionmentioning

confidence: 99%

“…CS protein from other parts of the body (Rubio-Palis et al 1992), only heads and thoraces were tested by ELISA for the CS protein of P. falciparum and P. vivax (polymorphs 210 and 247), following the standard protocols described by Moreno et al (2005). Mosquitoes were tested in pools of less than 10 for each species, collection method and date, to ensure that the probability of detecting more than one infected mosquito per pool was less than 1% (Rubio-Palis et al 1992, Galardo et al 2007, Magris et al 2007.…”

Section: Methodsmentioning

confidence: 99%

See 4 more Smart Citations

Malaria entomological inoculation rates in gold mining areas of Southern Venezuela

Moreno

Rubio-Palis

Páez³

et al. 2009

Mem. Inst. Oswaldo Cruz

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Malaria entomological inoculation rates in gold mining areas of Southern Venezuela

Moreno

Rubio-Palis

Páez³

et al. 2009

Mem. Inst. Oswaldo Cruz

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Adult damselflies as possible regulators of mosquito populations in urban areas

Córdoba‐Aguilar

Miguel-Rodríguez

Rocha‐Ortega

et al. 2021

Pest Management Science

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BACKGROUND Dragonfly and damselfly larvae have been considered as possible biocontrol agents against young instars of mosquito vectors in urban environments. Yet our knowledge about adult odonate predation against mosquito adults is scarce. We quantified daily and annual predation rates, consumption rates and prey preferences of adult Hetaerina vulnerata male damselflies in an urban park. A focus on predation of mosquito species was provided, quantified their arbovirus (dengue, chikungunya and Zika) infection rates and biting activity. RESULTS Foraging times of H. vulnerata overlapped with those of the maximum activity of hematophagous mosquitoes. The most consumed preys were Diptera and Hymenoptera and, in lower quantities, Hemiptera, Coleoptera, Trichoptera, Psocoptera and Neuroptera. Of note, 7% of the diet was represented by hematophagous dipterans, with 2.4% being Aedes aegypti and Aedes albopictus. Prey abundance in the diet coincided with that of the same species in the environment. The arboviral infection rate (dengue, chikungunya and Zika) was 1.6% for A. aegypti and A. albopictus. The total biting rate of these mosquito vectors was 16 bites per person per day, while the annual rate of infectious bites was 93.4. CONCLUSION Although 2.4% for both Aedes species seems a low consumption, considering the presence of 12 odonate species at the park, it can be argued that adult odonates may play a relevant role as mosquito vector regulators, therefore impacting the spread of mosquito‐borne diseases. Our study outlines the need for further research on the topic of the possible role of adult odonates for mosquito biocontrol. © 2021 Society of Chemical Industry.

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Impact of Climate Change on Vector-Borne Disease in the Amazon

Pan

Branch

Zaitchik

2013

Global Climate Change and Public Health

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Impending changes in climate regimes coupled with anthropogenic changes in land use and land cover change pose the most pressing challenges to human societies and natural ecosystems. Global climate change is predicted to disrupt seasonal periodicities and long-term trends in rainfall and temperature, altering natural climate cycles and variation. The impact of environmental change on disease transmission will determine who, when, and where human livelihoods fl ourish and fail. Vulnerable populations will be particularly affected-i.e., chronically disadvantaged populations who are typically poor, have limited economic opportunities and access to services, and few (if any) options to improve their quality of life. Immediate action is needed to better understand, adapt, and respond to disease burdens that will be affected by changing climate.Keywords Climate change • Vector-borne disease in the Amazon and climate change • Climate change in the Amazon • Amazon climate change and vector-borne disease • Disease burden and climate change Impending changes in climate regimes coupled with anthropogenic changes in land use and land cover change (LUCC) pose the most pressing challenges to human societies and natural ecosystems. Global climate change is predicted to disrupt

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Vector bionomics and malaria transmission in the Upper Orinoco River, Southern Venezuela

Cited by 66 publications

References 29 publications

Malaria entomological inoculation rates in gold mining areas of Southern Venezuela

Malaria entomological inoculation rates in gold mining areas of Southern Venezuela

Adult damselflies as possible regulators of mosquito populations in urban areas

Impact of Climate Change on Vector-Borne Disease in the Amazon

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