<i>Effect of temperature on hatching eggs and embryonic survival in the mosquito</i> Culex quinquefasciatus

Rayah, El Amin El; Groun, Nawal A. Abu

doi:10.1111/j.1570-7458.1983.tb03281.x

Cited by 11 publications

(16 citation statements)

References 2 publications

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“…quinquefasciatus (Oda et al 1999;Shriver and Bickley 1964) and so the upper and lower survival thresholds are 39°C and 11°C. Egg survival at various temperatures was reported by Shriver and Bickley (1964) and El Rayah and Abu Groun (1983a). From these results and data on the relation between development time and temperature, Eqs.…”

Section: Eggssupporting

confidence: 60%

Modeled response of the West Nile virus vector Culex quinquefasciatus to changing climate using the dynamic mosquito simulation model

Morin

Comrie

2010

Int J Biometeorol

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Climate can strongly influence the population dynamics of disease vectors and is consequently a key component of disease ecology. Future climate change and variability may alter the location and seasonality of many disease vectors, possibly increasing the risk of disease transmission to humans. The mosquito species Culex quinquefasciatus is a concern across the southern United States because of its role as a West Nile virus vector and its affinity for urban environments. Using established relationships between atmospheric variables (temperature and precipitation) and mosquito development, we have created the Dynamic Mosquito Simulation Model (DyMSiM) to simulate Cx. quinquefasciatus population dynamics. The model is driven with climate data and validated against mosquito count data from Pasco County, Florida and Coachella Valley, California. Using 1-week and 2-week filters, mosquito trap data are reproduced well by the model (P < 0.0001). Dry environments in southern California produce different mosquito population trends than moist locations in Florida. Florida and California mosquito populations are generally temperature-limited in winter. In California, locations are water-limited through much of the year. Using future climate projection data generated by the National Center for Atmospheric Research CCSM3 general circulation model, we applied temperature and precipitation offsets to the climate data at each location to evaluate mosquito population sensitivity to possible future climate conditions. We found that temperature and precipitation shifts act interdependently to cause remarkable changes in modeled mosquito population dynamics. Impacts include a summer population decline from drying in California due to loss of immature mosquito habitats, and in Florida a decrease in late-season mosquito populations due to drier late summer conditions.

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Section: Eggssupporting

confidence: 60%

Modeled response of the West Nile virus vector Culex quinquefasciatus to changing climate using the dynamic mosquito simulation model

Morin

Comrie

2010

Int J Biometeorol

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“…The effects of temperature on the development of Cx. quinquefasciatus have been reported previously (Shelton 1973, Suleman and Reisen 1979, Rayah and Groun 1983, Service 1986, Rueda et al 1990, Mogi 1992. In this study, the effects of constant temperatures on life table traits of Cx.…”

Section: Introductionsupporting

confidence: 69%

“…quinquefasciatus are 13° and 39°C, respectively. The hatching rate varies directly with temperature, up to 32°C, after which eclosion rates drop gradually (Rayah and Groun 1983). We found that at 15°C, this species could complete its life cycle with a positive r m and a very long generation time (124.07 days) (Table 3).…”

Section: Discussionmentioning

confidence: 99%

Estimating reaction norms for predictive population parameters, age specific mortality, and mean longevity in temperature-dependent cohorts of Culex quinquefasciatus Say (Diptera: Culicidae)

Günay

Alten

Özsoy

2010

Journal of Vector Ecology

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Culex quinquefasciatus plays a major role in the transmission of important parasites and viruses throughout the world. Because temperature is an important limiting factor on growth and longevity of all mosquito species, estimating the reaction norms provides very important basic information for understanding both plasticity and individual variations of the population. In the present study, Cx. quinquefasciatus were maintained at five different constant temperatures (15°, 20°, 23°, 27°, and 30°C) for two subsequent generations. Reproductive population parameters in blood-fed mated females and longevities of virgin and blood-fed mated adults reared at different temperatures were compared for the two generations. Longevity increased as temperature decreased within a range of 15° to 30°C for the unmated adults, and 15° to 27°C for the mated and blood-fed adults. Generation times were as long as 124.07 and 106.76 days for two subsequent generations reared at 15°C, and the highest intrinsic rate of increase (r m ) values were estimated at 0.22 and 0.18, respectively, from the cohorts reared at 27°C. For survival rates, reproductive rates (R 0 ), and r m values, 30°C was found to be a critical temperature for this species. These cohorts produced the smallest amount of eggs (R 0 = 5.06), r m values decreasing across generations (from 0.11 to 0.06), and the survival rates from egg to adult were found to be insufficient (16.1 and 10.8%). Additionally, the rate of exponential increase with age and age specific mortalities (b) were calculated for the virgin cohorts. Age specific mortality rates increased as temperature decreased. The increase in mortality rates started to accelerate at 27°C and was more pronounced at 30°C, for both females and males. We

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“…quinquefasciatus minimal and maximal temperature thresholds for embryonic development are 13ºC and 39ºC, respectively. In this species the hatching rate varies directly with temperature, up to 32ºC, after which eclosion rates drop gradually (Rayah & Groun 1983). …”

Section: Discussionmentioning

confidence: 99%

“…Influence of temperature on mosquito vectorial competence (Kay et al 1989), induced cross-tolerance between temperature and an insecticide (Patil et al 1996) and temperature effect on phenotypic characteristics -and its implication to taxonomy (Le Sueur & Sharp 1991) have also been noted. However, there are few reports dealing specifically with temperature influence over mosquito embryogenesis (Trpiš et al 1973, Rayah & Groun 1983, Van der Linde et al 1990.…”

mentioning

confidence: 99%

Temperature influence on embryonic development of Anopheles albitarsis and Anopheles aquasalis

Carvalho

Martins

Lima

et al. 2002

Mem. Inst. Oswaldo Cruz

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Effect of temperature on hatching eggs and embryonic survival in the mosquito Culex quinquefasciatus

Cited by 11 publications

References 2 publications

Modeled response of the West Nile virus vector Culex quinquefasciatus to changing climate using the dynamic mosquito simulation model

Modeled response of the West Nile virus vector Culex quinquefasciatus to changing climate using the dynamic mosquito simulation model

Estimating reaction norms for predictive population parameters, age specific mortality, and mean longevity in temperature-dependent cohorts of Culex quinquefasciatus Say (Diptera: Culicidae)

Temperature influence on embryonic development of Anopheles albitarsis and Anopheles aquasalis

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