Typologie des gîtes propices au développement larvaire de Culex pipiens L. 1758 (Diptera-Culicidae), source de nuisance à Constantine (Algérie)

Berchi, Sélima; Aouati, Amel; Louadi, Kamel

doi:10.3406/ecmed.2012.1311

Cited by 11 publications

(4 citation statements)

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“…were found in turbid, stagnant and sunny water bodies, rich in organic matters in Dschang and Santchou. These results are similar to those of Berchi et al (2012) in Algeria who indicated that Culex larvae were more frequently encountered in turbid water containing organic matter because this provides a substantial nutrient supply for their development and reduces competition rates (Souza et al, 2019). Previous studies conducted in Cameroon by Nchoutpouen et al (2019) in Yaoundé, Ngadvou et al (2020) in Ngaoundéré, Mbida et al (2018) in Douala and Saotoing et al (2014) in Maroua also revealed that mosquitoes of this genus prefer breeding sites with turbid and more or less polluted water.…”

Section: Discussionsupporting

confidence: 91%

Larval habitats characterization and population dynamics of Culex mosquitoes in two localities of the Menoua Division, Dschang and Santchou, West Cameroon

Djoufounna

Mayi

Bamou

et al. 2022

JoBAZ

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Background Choosing an appropriate strategy for mosquito vector control in an eco-climatic facies requires knowledge on vector ecology including population dynamics of species and productivity of the breeding sites. The aim of this study was to characterize Culex mosquitoes breeding places and to determine their population dynamics in two localities (Dschang and Santchou) separated by a forest cliff in the West Region of Cameroon. Field surveys were conducted from November 2019 to June 2020 in Dschang and Santchou. Mosquito breeding sites were georeferenced, and for each breeding site, physical parameters were measured and immature stages were collected. The collected immatures were reared in the laboratory until adult stage. Adult mosquitoes were identified using a stereomicroscope and morphological identification keys. Results A total of 44 breeding sites were identified: 24 in Dschang and 20 in Santchou. They were grouped into seven types and were mostly shallow, close to human dwellings, sunny, with organic matters and of anthropogenic nature. A total of 2706 mosquitoes belonging to four genera were identified. Culex genus was the most represented (90.4%) and was made up of Culex pipiens s.l. (61.79%), Culex duttoni (23.17%) and Culex (Culiciomyia) sp. (05.46%). High abundance of Culex species was observed in Santchou (52.71%) compared to Dschang (47.28%), while Dschang (S = 3; H = 0.87; D = 0.54) recorded the greatest diversity compared to Santchou (S = 2; H = 0.23; D = 0.11). Conclusions The proliferation and persistence of Culex mosquitoes independently of the breeding sites and localities might be attributable to the poor environmental management which favor the creation mosquito breeding sites. This study highlights the fact that prompt sanitation measures could be undertaken in these two localities to reduce mosquito abundance and the risk of vector-borne diseases.

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Section: Discussionsupporting

confidence: 91%

Larval habitats characterization and population dynamics of Culex mosquitoes in two localities of the Menoua Division, Dschang and Santchou, West Cameroon

Djoufounna

Mayi

Bamou

et al. 2022

JoBAZ

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“…The average total dissolved solids (TDS) value was 281.02 mg/l with a maximum of 283.91 mg/l in the dry season. The high electrical conductivity and TDS in the dry season can be explained by the accelerated degradation of organic matter in the water, resulting in a dissolved oxygen deficit Berchi et al [48] . In addition to this, there is the use of agricultural pesticides and herbicides.…”

Section: Discussionmentioning

confidence: 99%

Identification and characterization of Anopheles Breeding habitats in Dabakala, Central-East Cote d'Ivoire

.¹

2022

J. Entomol. Zool. Stud.

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Malaria prevention in Côte d'Ivoire is mainly based on the use of long-lasting insecticide-treated nets. Faced with the resistance of vectors to insecticides, the use of anti-larval measures proves to be of interest. This study conducted in the Dabakala health district aims to identify Anopheles breeding sites and their physicochemical characteristics influencing the productivity of larvae. Surveys were carried out in the urban and rural areas during the rainy season (July 2020) and the dry season (February 2021). Out of 102 potential breeding sites listed, a total of 53 were positive, including 38 sites of Anopheles and 15 of other Culicinae. In both urban and rural areas, most Anopheles breeding sites were observed during the rainy season, while the density of Anopheles larvae was higher in the dry season. These highest densities were observed, in rural areas in rice fields essentially, and in the urban regions in temporary water impoundments, water wells, and rice fields. The temperature, pH, and depth of water were positively correlated with the density of Anopheles larvae. This study allowing the identification of favorable periods and sites of Anopheles breeding in the Dabakala district can help to design a strategy for the control of Anopheles larvae.

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“…Therefore, we used two ODE systems to represent the life cycle of mosquitoes in the European region of the study area, one for the favorable season (Equation 1), i.e., the season of mosquito activity, and one for the unfavorable season (Equation 2). Considering the absence of an effective diapause period for our five mosquito species in the Maghreb region, and the yearlong presence of larvae in habitats [36][37][38], only one set of equations (Equation 1) was used for this area.…”

Section: Figure 1 Flow Diagram Of the Mosquito Population Dynamics Mo...mentioning

confidence: 99%

Modeling the population dynamics of Rift Valley fever virus mosquito vectors in the western Mediterranean Basin

Drouin

Balenghien

Durand

et al. 2023

Preprint

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Rift Valley fever (RVF) is a zoonotic vector-borne disease mainly transmitted by mosquitoes, and present in Africa, the Arabian Peninsula, and the Indian Ocean. The endemic situation in Mauritania, and the recent outbreaks in Libya have raised concerns about the potential spread of the virus in the Mediterranean Basin, where competent mosquitoes are present. Because vector abundance is one of the drivers of RVF virus (RVFV) transmission, knowledge on species distributions and population dynamics is needed to implement entomological surveillance and to assess the risk of viral circulation. Here, we adapted a modeling framework of mosquito population dynamics to five species considered as possible RVFV vectors in the western Mediterranean Basin (Aedes caspius, Aedes detritus, Aedes vexans, Culex pipiens and Culex theileri). The mechanistic model used a daily time step and a 0.1° x 0.1° spatial resolution and was based on meteorological data along with published vector distribution maps. We gathered mosquito trapping data from Spain, France, Italy and Morocco to calibrate the model and to evaluate its predictions. The temporal correlation between predicted abundance and observational data was satisfactory. Goodness-of-fit was better for Aedes species, thus offering the means to target the area of interest for the surveillance of Ae. caspius, a highly competent mosquito species.

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Typologie des gîtes propices au développement larvaire de Culex pipiens L. 1758 (Diptera-Culicidae), source de nuisance à Constantine (Algérie)

Cited by 11 publications

References 0 publications

Larval habitats characterization and population dynamics of Culex mosquitoes in two localities of the Menoua Division, Dschang and Santchou, West Cameroon

Larval habitats characterization and population dynamics of Culex mosquitoes in two localities of the Menoua Division, Dschang and Santchou, West Cameroon

Identification and characterization of Anopheles Breeding habitats in Dabakala, Central-East Cote d'Ivoire

Modeling the population dynamics of Rift Valley fever virus mosquito vectors in the western Mediterranean Basin

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