Inter- and Intraspecific Variation in Resistance to Desiccation by Adult Aedes (Stegomyia) spp. (Diptera: Culicidae) from Indonesia

Mogi, Motoyoshi; Miyagi, Ichiro; Abadi, K; Syafruddin, Syafruddin

doi:10.1093/jmedent/33.1.53

Cited by 62 publications

(63 citation statements)

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“…Wesson, personal communication). Differential effects of climate on survivorship of eggs (e.g., Juliano et al 2002;Mogi 1992a,1992b), and adults (Mogi et al 1996) of these two species are well documented and probably account, in part, for coexistence in warmer, seasonally dry sites. Though various explanations have been proposed for the persistence of A. aegypti in urban environments (Juliano 1998), there have been no convincing experimental tests of hypotheses for variation along the urban-rural gradient.…”

Section: Discussionmentioning

confidence: 99%

A field test for competitive effects of Aedes albopictus on A. aegypti in South Florida: differences between sites of coexistence and exclusion?

2004

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We tested whether interspecific competition from Aedes albopictus had measurable effects on A. aegypti at the typical numbers of larval mosquitoes found in cemetery vases in south Florida. We also tested whether the effect of interspecific competition from A. albopictus on A. aegypti differed between sites where A. aegypti either persists or went extinct following invasion by A. albopictus. Similar experiments manipulating numbers of A. albopictus in cemetery vases were conducted at three sites of A. aegypti persistence and three sites where A. aegypti was apparently extinct. The experiments were done using numbers of larvae that were determined by observed numbers of larvae for each site, and with resources (leaf detritus) that accumulated in experimental vases placed into each field site. In both the early rainy season (when number of mosquito larvae was low) and the late rainy season (when number of mosquito larvae was high), there was a significant effect of treatment on developmental progress of experimental A. aegypti. In the late rainy season, when numbers of larvae were high, there was also a significant effect of treatment on survivorship of A. aegypti. However, the competition treatment × site type (A. aegypti persists vs extinct) interaction was never significant, indicating that the competitive effect of A. albopictus on A. aegypti did not differ systematically between persistence versus extinction sites. Thus, although competition from A. albopictus is strong under field conditions at all sites, we find no evidence that variation in the impact of interspecific competition is associated with coexistence or exclusion. Interspecific competition among larvae is thus a viable explanation for exclusion or reduction of A. aegypti in south Florida, but variation in the persistence of A. aegypti following invasion does not seem to be primarily a product of variation in the conditions in the aquatic environments of cemetery vases.

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Section: Discussionmentioning

confidence: 99%

A field test for competitive effects of Aedes albopictus on A. aegypti in South Florida: differences between sites of coexistence and exclusion?

2004

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“…67,68 Larger also means higher energy reserves, 67 and by having a higher mass/surface area ratio, they might be less prone to desiccation than small mosquitoes. 69 These results suggest that the strategy of rearing large mosquitoes in the mass-releases of wMel-infected mosquitoes 1 may have contributed to the success of these releases. It is unclear if the large size of males also influences fitness in the field, although laboratory studies support the idea that larger males are fitter.…”

Section: Size and Shape In Released Mosquitoesmentioning

confidence: 92%

Body Size and Wing Shape Measurements as Quality Indicators of Aedes aegypti Mosquitoes Destined for Field Release

Yeap

Endersby²,

Johnson³

et al. 2013

The American Society of Tropical Medicine and Hygiene

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Abstract. There is increasing interest in rearing modified mosquitoes for mass release to control vector-borne diseases, particularly Wolbachia-infected Aedes aegypti for suppression of dengue. Successful introductions require release of high quality mosquitoes into natural populations. Potential indicators of quality are body size and shape. We tested to determine if size, wing/thorax ratio, and wing shape are associated with field fitness of Wolbachia-infected Ae. aegypti. Compared with field-collected mosquitoes, released mosquitoes were larger in size, with lower size variance and different wing shape but similar in wing-thorax ratio and its associated variance. These differences were largely attributed to nutrition and to a minor extent to wMel Wolbachia infection. Survival potential of released female mosquitoes was similar to those from the field. Females at oviposition sites tended to be larger than those randomly collected from BG-Sentinel traps. Rearing conditions should thus aim for large size without affecting wing/thorax ratios.

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“…There are several prominent examples of local persistence of poorer competitors when they can tolerate more extreme physical conditions than can superior competitors (e.g., Connell 1961;Hemphill 1991) or cases where different physical environments yield different competitive outcomes (e.g., Dunson and Travis 1991;Warner et al 1993). Studies of A. albopictus and A. aegypti in Asia have demonstrated that these species differ in desiccation tolerances of adults and eggs, but also that there is pronounced geographic variation for both traits within both species (Sota and Mogi 1992a, b;Mogi et al 1996). 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.…”

Section: Introductionmentioning

confidence: 99%

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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Inter- and Intraspecific Variation in Resistance to Desiccation by Adult Aedes (Stegomyia) spp. (Diptera: Culicidae) from Indonesia

Cited by 62 publications

References 0 publications

A field test for competitive effects of Aedes albopictus on A. aegypti in South Florida: differences between sites of coexistence and exclusion?

A field test for competitive effects of Aedes albopictus on A. aegypti in South Florida: differences between sites of coexistence and exclusion?

Body Size and Wing Shape Measurements as Quality Indicators of Aedes aegypti Mosquitoes Destined for Field Release

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

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