Reproductive aspects of the mosquito Culex quinquefasciatus (Diptera:Culicidae) infected with Wuchereria bancrofti (Spirurida: Onchocercidae)

Lima, Catarina A.; Almeida, Walkiria R.; Hurd, Hilary; Albuquerque, Cleide Maria Ribeiro de

doi:10.1590/s0074-02762003000200009

Cited by 30 publications

(14 citation statements)

References 24 publications

(38 reference statements)

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“…darlingi seeking multiple blood meals within the first gonotrophic cycle. Many studies have shown that female mosquito body size and nutritional status influence the frequency of blood meals and egg production (Akoh et al 1992, Briegel and Hörler 1993, Lyimo and Takken 1993, Armbruster and Hutchinson 2002, Lima et al 2003), therefore we further examined this phenomenon by raising An. darlingi in the laboratory.…”

Section: Discussionmentioning

confidence: 99%

Multiple blood meals inAnopheles darlingi(Diptera: Culicidae)

Oliveira¹,

Tadei²,

Abdalla³

et al. 2012

Journal of Vector Ecology

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Anopheles darlingi is an important vector of human malaria in the Amazon. Adult females of this mosquito species require a blood meal to develop eggs, preferring humans to other blood sources. Although gonotrophic concordance has been described as the norm for An. darlingi, here we report An. darlingi female mosquitoes taking two or more blood meals within their first gonotrophic cycle. Only half of field-captured adult females fed one blood meal developed follicles to Christophers' stage V. This outcome is dependent on larval nutrition, as 88% of laboratory-raised well-nourished females completed the first gonotrophic cycle with only one blood meal, while less nourished females needed additional blood meals. Half of the fieldcaptured blood-seeking An. darlingi females had follicles in intermediate (IIIa and IIIb) and final (V) stages of the gonotrophic cycle, supporting the conclusion that An. darlingi blood feed more than once during a gonotrophic cycle. Additionally, we observed females attempting to blood feed a second time during the same day. Additional studies of An. darlingi biting behavior are necessary to accurately estimate Plasmodium sp. entomologic inoculation rates throughout the An. darlingi vast geographical distribution. Journal of Vector Ecology 37 (2): 351-358. 2012.

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“…Filarial infection can disrupt the predicted positive relationship between size and fecundity [31], thus our observed lack of correlation between these traits is not unexpected. Gerbil mf density significantly and negatively impacted mosquito egg production, a result consistent with other studies [24,26].…”

Section: Discussionmentioning

confidence: 57%

What does not kill them makes them stronger: larval environment and infectious dose alter mosquito potential to transmit filarial worms

2014

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For organisms with complex life cycles, larval environments can modify adult phenotypes. For mosquitoes and other vectors, when physiological impacts of stressors acting on larvae carry over into the adult stage they may interact with infectious dose of a vector-borne pathogen, producing a range of phenotypes for vector potential. Investigation of impacts of a common source of stress, larval crowding and intraspecific competition, on adult vector interactions with pathogens may increase our understanding of the dynamics of pathogen transmission by mosquito vectors. Using Aedes aegypti and the nematode parasite Brugia pahangi, we demonstrate dose dependency of fitness effects of B. pahangi infection on the mosquito, as well as interactions between competitive stress among larvae and infectious dose for resulting adults that affect the physiological and functional ability of mosquitoes to act as vectors. Contrary to results from studies on mosquito-arbovirus interactions, our results suggest that adults from crowded larvae may limit infection better than do adults from uncrowded controls, and that mosquitoes from high-quality larval environments are more physiologically and functionally capable vectors of B. pahangi. Our results provide another example of how the larval environment can have profound effects on vector potential of resulting adults.

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“…Culex quinquefasciatus vary from 3.96 to 4.25 mm in length [8] . It is medium sized mosquito having brown coloration.…”

Section: Morphology Of Culex Quinquefasciatus: Adultmentioning

confidence: 99%

Review on Culex quinquefasciatus: Southern House Mosquito

Negi¹,

Verma²

2018

IJLSSR

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ABSTRACT-Diseases caused by mosquitoes have been a threat all around the globe since ages and humans have been coping with the disease spread in various possible ways. Mosquitoes are ectoparasites, which are vectors to numerous of diseases caused in humans as well as animals, and birds. Through the diseases they carry, it may lead to severe illness and even death. Culex quinquefasciatus is one of the mosquito species, which is a potential vector of several arboviruses like West Nile virus (WNV), Rift Valley fever virus, avian pox and protozoa like Plasmodium relictum, which causes bird malaria. This mosquito exists throughout the tropics and the lower latitudes of temperate regions. Also, it can transmit several other arboviruses in the laboratory conditions. The present study is an attempt to review the bioecology, medical importance, and impact of phytoextracts on the life of Culex quinquefasciatus. It acts as an important bridge since it bridges between different reservoir/amplifier hosts to humans because of its encounter with different vertebrates. It also forms an ecological bridge between the urban, periurban and rural areas, which leads to its presence and adaptability in diverse ecological conditions. Emerging as a smart vector because of the features like-adaptive fitness, ecological plasticity, invasive behaviour and high reproductive potential, this mosquito possesses the necessary capability for disease transmission by establishing an effective vector-host transmission cycle for diverse pathogens in variable environments. Thus, in the changing ecological conditions also this mosquito might enhance its epidemiological importance in the near future as a smart vector even for those pathogens, which are presently not even having any public health importance. Hence, studies are being made to find out and prepare plants based environment friendly formulations in order to target this organism because this species may develop resistance to the chemical insecticides due to its high resistivity and adaptability.

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“…Cx. quinquefasciatus acts as a vector of filarial worms [2,3], protozoan parasites [4], and various arboviruses [5][6][7][8][9]. In India, Cx.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Biological Attributes ofCulex quinquefasciatus(Diptera: Culicidae) Populations from India

2013

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Understanding the population dynamics of mosquito populations through life table analysis and insecticide susceptibility is important to assess the likely impact of vector control strategies as well as to aid the design of novel interventions. Variation in the life tables and other biological data was compared for two populations of Culex quinquefasciatus Say 1823 from geographically isolated regions, Gorakhpur and Pune from India. Under a standardized rearing regime and constant laboratory conditions, mosquitoes were reared and biological attributes of these populations were compared. Development and survival of immature and adult stages of Culex quinquefasciatus were found significantly different in Gorakhpur and Pune populations. Principal component analysis of morphological data revealed that the two populations form significantly different clusters which can be differentiated from each other based on siphon, saddle, anal gills, and pecten teeth related variables. Insecticide susceptibility results suggest that the larvae from both areas were more susceptible to deltamethrin as compared to DDT and malathion. The current study provides baseline information on survivorship, morphological variation and insecticide susceptibility of Culex quinquefasciatus. The results obtained in this study suggest that different geographical areas with contrasting habitats have significant influence on survival and reproductive strategies of Culex quinquefasciatus.

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“…Body size is usually positively correlated with larval food resources and thus serves as an indicator of both larval habitat quality and teneral reserves (Briegel 2003, Telang andWells 2004). Many studies have shown a positive relationship between female mosquito body size and egg production (Akoh et al 1992, Armbruster and Hutchinson 2002, Briegel 1990a, Briegel 1990b, Lima et al 2003, Lyimo and Takken 1993. This implies that the potential reproduction of a female mosquito is determined in part by the larval habitat.…”

Section: Introductionmentioning

confidence: 99%

Age Modifies the Effect of Body Size on Fecundity inCulex quinquefasciatusSay (Diptera: Culicidae)

McCann¹,

Day²,

Allan³

et al. 2009

Journal of Vector Ecology

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Fecundity of mosquitoes can vary with many factors and can have a strong effect on population growth. This study reports the effects of body size, blood meal size, and age on the reproductive output of nulliparous Culex quinquefasciatus, a vector of arboviruses and other pathogens. Mated adult female mosquitoes from a colony were reared under standard conditions and fed on chickens at different ages post-eclosion. Blood meal size and wing length were recorded, as well as the number of eggs in the first-cycle egg raft. Each of these factors had a significant influence on fecundity considered in a simple regression context. Multiple regression analysis revealed a significant interaction effect between age and body size on fecundity. Up to 13 days of age, fecundity was positively correlated with body size, but in mosquitoes older than 13 days, this relationship was not significantly different from zero. These results are discussed in terms of the known physiology of this and other species. Journal of Vector Ecology 34 (2): 174-181. 2009.

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Reproductive aspects of the mosquito Culex quinquefasciatus (Diptera:Culicidae) infected with Wuchereria bancrofti (Spirurida: Onchocercidae)

Abstract: This study reports on the relationship between

Cited by 30 publications

References 24 publications

Multiple blood meals inAnopheles darlingi(Diptera: Culicidae)

What does not kill them makes them stronger: larval environment and infectious dose alter mosquito potential to transmit filarial worms

Review on Culex quinquefasciatus: Southern House Mosquito

Comparison of Biological Attributes ofCulex quinquefasciatus(Diptera: Culicidae) Populations from India

Age Modifies the Effect of Body Size on Fecundity inCulex quinquefasciatusSay (Diptera: Culicidae)

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