Interspecific variation in desiccation survival time of Aedes (Stegomyia) mosquito eggs is correlated with habitat and egg size

Sota, Teiji; Mogi, Motoyoshi

doi:10.1007/bf00317691

Cited by 163 publications

(148 citation statements)

References 22 publications

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“…As is inevitable with this type of investigation, some eggs were lost in the process of handling and bleaching, and we ignored these, under the assumption that such losses should be independent of whether the egg was alive. Other authors have used a similar approach (e.g., Sota and Mogi 1992b).…”

Section: Egg Mortality At Controlled Humidity and Temperaturementioning

confidence: 99%

“…Thus, there is a need to compare desiccation and temperature tolerances of A. albopictus and A. aegypti from Florida, and to determine if the pattern of local coexistence versus exclusion observed in the field in Florida can be accounted for by differences in desiccation or temperature tolerance. The focus of this paper is on eggs, because it is the egg stage of these species that is the most likely to survive though unfavorable periods (Sota and Mogi 1992b). Our hypothesis is that persistence of A. aegypti in Florida results from greater survivorship of A. aegypti eggs, and correspondingly low survivorship of A. albopictus eggs, through dry or hot periods, and that local elimination of A aegypti following invasion by A. albopictus has occurred at sites where wetter, cooler conditions prevail.…”

Section: Introductionmentioning

confidence: 99%

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Desiccation and thermal tolerance of eggs and the coexistence of competing mosquitoes

et al. 2002

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We tested the hypothesis that differences in temperature and desiccation tolerances of eggs of the container-dwelling mosquitoes Aedes albopictus and Aedes aegypti influence whether invading A. albopictus coexist with or exclude A. aegypti in Florida. In the laboratory, egg mortality through 30 days for A. albopictus was strongly temperature and humidity dependent, with low humidity and high temperature producing greatest mortality. In contrast, mortality through 30 days and through 60 days for A. aegypti was very low and independent of temperature and humidity. Mortality through 90 days for A. aegypti showed significant effects of both temperature and humidity. In the field, the proportion of vases occupied by A. albopictus was significantly lower at four of six sites at the start of the wet season (after a dry period) versus well into the wet season (after containers had held water for weeks). The proportion of vases occupied by A. aegypti was independent of when during the wet season vases were sampled. These results imply that dry periods cause disproportionately greater mortality of A. albopictus eggs compared to A. aegypti eggs. Container occupancy at tire and cemetery sites was significantly related to two principal components derived from longterm average climate data. Occupancy of containers by A. albopictus was greatest at cool sites with little or no dry season, and decreased significantly with increasing mean temperature and increasing number of dry months. In contrast, occupancy of containers by A. aegypti was lowest at cool sites with little or no dry season, and increased significantly with increasing mean temperature and increasing dry season length, and decreased significantly with total precipitation and number of wet months. We suggest that local coexistence of these species is possible because warm, dry climates favor A. aegypti and alleviate effects of competition from A. albopictus via differential mortality of A. albopictus eggs.

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Section: Egg Mortality At Controlled Humidity and Temperaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Desiccation and thermal tolerance of eggs and the coexistence of competing mosquitoes

et al. 2002

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“…In temperate zones, Ae. albopictus experiences high larval and almost complete adult mortality during winter and almost exclusively survives adverse winter temperatures as diapausing eggs (Sota and Mogi 1992, Swanson et al 2000), whereas in subtropical areas, larvae and adults are often active during the winter (Rios and Maruniak 2004; Lounibos and Escher 2008). In the Northern Hemisphere, the duration of favorable summer temperatures permitting survival of adults and larvae declines with increasing latitude.…”

Section: Introductionmentioning

confidence: 99%

Geographic Variation in Adult Survival and Reproductive Tactics of the Mosquito Aedes albopictus

Leisnham¹,

Sala²,

Juliano

2008

Journal of Medical Entomology

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Climate differences across latitude can result in seasonal constraints and selection on life history characters. Since Aedes albopictus (Skuse) invaded North America in the mid-1980s, it has spread across a range of ≈14° latitude and populations in the north experience complete adult mortality due to cold winter temperatures that are absent in the south. Life table experiments were conducted to test for differences in the adult survival and reproductive schedules of Ae. albopictus females from two populations from the northern (Bloomington, IN [BL] and Manassas, VA [VA]; ≈39° N) and southern (Tampa, FL and Fort Myers, FL;(27)(28) extremes of the species distribution in North America. Regardless of population origin, age-specific hazard rate increased with reproductive output and decreased with number of bloodmeals. Larger females took fewer bloodmeals, and they had greater hazard rates than did smaller females. There were no consistent differences between northern versus southern populations in resource allocation between reproduction and maintenance, reproduction over time, and reproductive investment among offspring, suggesting that latitudinal variation in climate is probably not a main selective factor impinging on adult mortality and reproductive schedules. One possible effect of climate on geographic differences in life history was detected. BL had lower survivorship, lower lifetime reproductive output, and lower adult reproductive rate than did all other populations. This result may be an indirect result of lower egg survivorship due to the severity of winter in BL compared with other populations, including VA at approximately the same latitude. Such a scenario may make the BL population more prone to extinction, irregularly recolonized from more favorable sites, and thus more susceptible to founder effects, genetic drift, and inbreeding, resulting in lower mean values of fitness-related traits. Keywordslife history evolution; survival; fecundity; reproductive investmentThe Asian tiger mosquito, Aedes albopictus (Skuse), is considered medically important because it is a vector of arboviruses, including dengue, La Crosse encephalitis, and West Nile virus (Ibañez-Berñal et al. 1997, Gerhardt et al. 2001, Turell et al. 2005. Although its native range is centered on the Oriental region and India, Ae. albopictus has invaded North and South America, Europe, and Africa in the past two decades (see Juliano and Lounibos 2005, and references therein) to represent a "third wave" of worldwide spread of human disease-vector mosquitoes, after two prior waves by Aedes aegypti (L.) in the sixteenth and seventeenth centuries and Culex quinquefasciatus Say in the nineteenth century (Lounibos 2002 Of fundamental importance to the invasion and spread of an organism are the temporal patterns of reproduction and survival that make up its life history (Juliano and Lounibos 2005). In many instances, energy available to organisms is limiting; thus, trade-offs occur among traits when energy is partitioned among growth, ma...

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“…In contrast to Aedes mosquitoes, which are highly resistant to desiccation allowing embryos to survive for months in dry conditions [53], eggshells of the human malaria vector, A. gambiae are more permeable, restricting their survival and development to humid environments [54]. Greater knowledge of the proteins that comprise eggshells is required to understand these differences and how they contribute to successful mosquito reproductive strategies.…”

Section: Proteome Of the Eggshellmentioning

confidence: 99%

Proteomics of Anopheles gambiae

Choumet¹

2012

Malaria Parasites

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Interspecific variation in desiccation survival time of Aedes (Stegomyia) mosquito eggs is correlated with habitat and egg size

Cited by 163 publications

References 22 publications

Desiccation and thermal tolerance of eggs and the coexistence of competing mosquitoes

Desiccation and thermal tolerance of eggs and the coexistence of competing mosquitoes

Geographic Variation in Adult Survival and Reproductive Tactics of the Mosquito Aedes albopictus

Proteomics of Anopheles gambiae

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