Comparison of Biological Attributes of<i>Culex quinquefasciatus</i>(Diptera: Culicidae) Populations from India

Gokhale, M D; Paingankar, Mandar S.; Dhaigude, Sachin

doi:10.1155/2013/451592

Cited by 11 publications

(9 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…After an ∼10 min period of adaptation to conditions inside the sound-attenuated booth, the mosquitoes started to fly spontaneously, whereupon sound recording and stimuli presentation were initiated. All behavioural experiments were conducted at a room temperature of 30±2°C, which is within the range of temperatures of the natural habitat of the C. quinquefasciatus mosquitoes (Gokhale et al, 2013).…”

Section: Behavioural Set-upmentioning

confidence: 99%

A role for acoustic distortion in novel rapid frequency modulation behaviour in free-flying male mosquitoes

Simões

Ingham

Gibson

et al. 2016

Journal of Experimental Biology

170

View full text Add to dashboard Cite

We describe a new stereotypical acoustic behaviour by male mosquitoes in response to the fundamental frequency of female flight tones during mating sequences. This male-specific free-flight behaviour consists of phonotactic flight beginning with a steep increase in wing-beat frequency (WBF) followed by rapid frequency modulation (RFM) of WBF in the lead up to copula formation. Male RFM behaviour involves remarkably fast changes in WBF and can be elicited without acoustic feedback or physical presence of the female. RFM features are highly consistent, even in response to artificial tones that do not carry the multi-harmonic components of natural female flight tones. Comparison between audiograms of the robust RFM behaviour and the electrical responses of the auditory Johnston's organ (JO) reveals that the male JO is tuned not to the female WBF per se but, remarkably, to the difference between the male and female WBFs. This difference is generated in the JO responses as a result of intermodulation distortion products (DPs) caused by non-linear interaction between male-female flight tones in the vibrations of the antenna. We propose that male mosquitoes rely on their own flight tones in making use of DPs to acoustically detect, locate and orientate towards flying females. We argue that the previously documented flight-tone harmonic convergence of flying male and female mosquitoes could be a consequence of WBF adjustments so that DPs generated through flight-tone interaction fall within the optimal frequency ranges for JO detection.

show abstract

Section: Behavioural Set-upmentioning

confidence: 99%

A role for acoustic distortion in novel rapid frequency modulation behaviour in free-flying male mosquitoes

Simões

Ingham

Gibson

et al. 2016

Journal of Experimental Biology

170

View full text Add to dashboard Cite

show abstract

“…Data for the egg stage (time to hatching and proportion of hatched eggs), was obtained from a population kept at 28°C (Gokhale et al. ). Survival and duration of immature stages were adopted from Grech et al.…”

Section: Model Structure and Demographic Parametersmentioning

confidence: 99%

“…Finally, the number of eggs per raft was also adopted from Gokhale et al. (). A projection matrix of C. pipiens is presented in Table .…”

Section: Model Structure and Demographic Parametersmentioning

confidence: 99%

“…As for C. pipiens, most vital rates were based on data reported for Culex quinquefasciatus, regarded as a member of the Culex pipiens complex (Table 2). Data for the egg stage (time to hatching and proportion of hatched eggs), was obtained from a population kept at 28°C (Gokhale et al 2013). Survival and duration of immature stages were adopted from Grech et al (2015).…”

Section: Model Structure and Demographic Parametersmentioning

confidence: 99%

“…The length of the gonotrophic cycle was adopted from Faraj et al (2006). Finally, the number of eggs per raft was also adopted from Gokhale et al (2013). A projection matrix of C. pipiens is presented in Table 2.…”

Section: Model Structure and Demographic Parametersmentioning

confidence: 99%

See 2 more Smart Citations

Modelling the effects of spatial heterogeneity and temporal variation in extinction probability on mosquito populations

Alcalay

Tsurim

Ovadia

2017

Ecological Applications

View full text Add to dashboard Cite

Spatial synchrony plays an important role in dictating the dynamics of spatial and stage-structured populations. Here we argue that, unlike the Moran effect where spatial synchrony is driven by exogenous factors, spatial correlation in intrinsic/local-scale processes can affect the level of spatial synchrony among distinct sub-populations, and therefore the persistence of the entire population. To explore this mechanism, we modelled the consequences of spatial heterogeneity in aquatic habitat quality, and that of temporal variation in local extinction probability, on the persistence of stage-structured mosquito populations. As a model system, we used two widely distributed mosquito species, Aedes albopictus and Culex pipiens, both key vectors of a range of infectious diseases. Spatial heterogeneity in aquatic habitat quality led to increased population persistence, and this pattern was more pronounced at intermediate dispersal rates, and in the long-dispersing species (C. pipiens). The highest regional persistence was obtained at high dispersal rates. This is probably because dispersal, in our model, did not carry any additional costs. Population persistence of both species was negatively correlated with increased temporal variation in local extinction probability. These differences were stronger in the short-dispersing species (A. albopictus), especially at intermediate dispersal rates. The dispersal of A. albopictus adults in each time step was limited to the nearest habitat patches, weakening the positive effect of spatial heterogeneity in aquatic habitat quality on population persistence. In contrast, C. pipiens adults could disperse into more remote sub-populations, resulting in much higher recolonization rates. Hence, the negative effect of temporal variation in local extinction probability on patch occupancy disappeared at intermediate dispersal rates. We suggest that effectively controlling these two mosquito species requires making few spatially synchronized control efforts (i.e., generating high temporal variation in local extinction probability), rather than many asynchronized local control efforts. Finally, our model can be easily fitted to other organisms characterized by complex life cycles, and it can be also used to examine alternative scenarios, including the effect of spatial configuration of local habitat patches and dispersal kernel shape on population persistence.

show abstract

Bioecology, Insecticide Susceptibility and Management of Culex quinquefasciatus Say, 1823: A Major Vector of Lymphatic Filariasis in India

Gopalakrishnan

Veer

2018

Lymphatic Filariasis

View full text Add to dashboard Cite

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

Cited by 11 publications

References 31 publications

A role for acoustic distortion in novel rapid frequency modulation behaviour in free-flying male mosquitoes

A role for acoustic distortion in novel rapid frequency modulation behaviour in free-flying male mosquitoes

Modelling the effects of spatial heterogeneity and temporal variation in extinction probability on mosquito populations

Bioecology, Insecticide Susceptibility and Management of Culex quinquefasciatus Say, 1823: A Major Vector of Lymphatic Filariasis in India

Contact Info

Product

Resources

About