Interspecific Cross-Mating Between<i>Aedes aegypti</i>and<i>Aedes albopictus</i>Laboratory Strains: Implication of Population Density on Mating Behaviors

Marcela, Paula; Hassan, Ahmad; Ahmad, Hishamuddin; Dieng, Hamady; Kumara, T. K.

doi:10.2987/moco-31-04-313-320.1

Cited by 12 publications

(14 citation statements)

References 56 publications

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“…aegypti. One study has pointed to the implication of population density on mating behavior [42], and found that male density significantly increased swarming behavior, number of mating pairs, and egg production of hetero-specific females, but not female insemination. They also found that Ae.…”

Section: Discussionmentioning

confidence: 99%

Demonstration of resistance to satyrization behavior in Aedes aegypti from La Réunion island

et al. 2020

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Aedes aegypti and Aedes albopictus are competent vectors of arboviruses such as dengue and chikungunya viruses which co-exist in some areas, including La Réunion island, Indian Ocean. A type of reproductive interference called satyrization has been described in sympatric species where dominant species mating fails to produce hybrids and thus reduces the fitness and tends to control the spread of the other species. Here, we investigated satyrization in laboratory experiments to provide insights on the potential impact on Ae. aegypti of a control campaign including a sterile insect technique component against Ae. albopictus. Different mating crosses were used to test sympatric, conspecific-interspecific and allopatric effects of irradiated and non-irradiated male Ae. albopictus on female Ae. aegypti, including in a situation of skewed male ratio. Our results suggest that there was only a low level of satyrization between sympatric populations of Ae. aegypti and Ae. albopictus colonized from La Réunion island. A male Ae. albopictus to female Ae. aegypti ratio of 3:1 did not increase the level of satyrization. Female Ae. aegypti previously mated to male Ae. albopictus were not prevented from being inseminated by conspecific males. A satyrization effect was not seen between allopatric Ae. albopictus and Ae. aegypti strains from La Réunion Island either. The tested Ae. aegypti strain from La Réunion island has therefore developed full resistance to satyrization and so releasing sterile male Ae. albopictus may not suppress Ae. aegypti populations if an overflooding of irradiated male Ae. albopictus leads to similar results. The management strategy of two competent species in a sympatric area is discussed.

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Section: Discussionmentioning

confidence: 99%

Demonstration of resistance to satyrization behavior in Aedes aegypti from La Réunion island

et al. 2020

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“…These two species are not sibling taxa, and have differences in mating behavior, Sfps components, and the effect of ejaculate in cross mating experiments (e.g. asymmetric mating effects or “satyrization”) [ 39 , 42 , 45 – 47 ]. Taken together, we hypothesize that larger male Ae.…”

Section: Discussionmentioning

confidence: 99%

The importance of male body size on sperm uptake and usage, and female fecundity in Aedes aegypti and Aedes albopictus

Jesus

Reiskind

2016

Parasites Vectors

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BackgroundAdult mosquito density is a critical factor in the transmission of arboviruses by container Aedes spp. mosquitoes. Female fecundity drives population growth, and therefore contributes to adult mosquito density. Previous studies have focused on female body size as the major determinant of fecundity, paying little attention to male condition. In this study, we examined the effects of male body size on the abundance of sperm in spermatheca, depletion of sperm over time, and female fecundity.MethodsWe generated males in two size classes using different larval densities, and allowed them to mate with females generated from a moderately dense larval environment. We counted sperm in female spermatheca in a sample of females immediately after mating, then every week for four weeks post-mating. We provided weekly blood meals to females and determined their fecundity over four weeks after the initial blood meal.ResultsWe found significantly more sperm in Aedes albopictus females than in Aedes aegypti, and detected depletion of sperm in Ae. aegypti, but not in Ae. albopictus. We did not see significant differences in number of sperm in spermathecae in relation to male body size in either species over subsequent gonotrophic cycles. We found a significant effect of male body size on fecundity in Ae. albopictus, but not Ae. aegypti, with a 46 % increase in fecundity for female Ae. albopictus offered four blood meals.ConclusionsOur results suggest substantial differences in the mating biology of these ecologically similar species and the importance of considering males in understanding female fecundity. The substantial increase in fecundity in Ae. albopictus has implications for population growth, estimating vector density, and modeling the transmission of pathogens.

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“…aegypti is more likely to mis-mate than Ae. albopictus [ 37 , 38 ] and following mis-mating, female Ae. aegypti can become refractory to further mating [ 36 ].…”

Section: Discussionmentioning

confidence: 99%

“…albopictus both in the field [ 36 ], and in the laboratory [ 37 , 38 ]. As discussed by Paton & Bonsall [ 33 ], at least four types of reproductive interference [ 31 ] occur between Aedes species: misdirected courtship, heterospecific mating attempts, erroneous female choice and heterospecific mating [ 36 – 38 ]. While the impact of reproductive interference upon the coupled population dynamics of Ae.…”

Section: Introductionmentioning

confidence: 99%

The concomitant effects of self-limiting insect releases and behavioural interference on patterns of coexistence and exclusion of competing mosquitoes

Vollans

Bonsall

2021

Proc. R. Soc. B.

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Aedes aegypti is the dominant vector of dengue, a potentially fatal virus whose incidence has increased eightfold in the last two decades. As dengue has no widely available vaccine, vector control is key to reducing the global public health burden. A promising method is the release of self-limiting Ae. aegypti , which mate with wild Ae. aegypti and produce non-viable offspring. The resultant decrease in Ae. aegypti population size may impact coexistence with Ae. albopictus , another vector of dengue. A behavioural mechanism influencing coexistence between these species is reproductive interference, where incomplete species recognition results in heterospecifics engaging in mating activities. We develop a theoretical framework to investigate the interaction between self-limiting Ae. aegypti releases and reproductive interference between Ae. aegypti and Ae. albopictus on patterns of coexistence. In the absence of self-limiting Ae. aegypti release, coexistence can occur when the strength of reproductive interference experienced by both species is low. Results show that substantial overflooding with self-limiting Ae. aegypti prevents coexistence. For lower release ratios, as the release ratio increases, coexistence can occur when the strength of reproductive interference is increasingly high for Ae. albopictus and increasingly low for Ae. aegypti . This emphasizes the importance of including behavioural ecological processes into population models to evaluate the efficacy of vector control.

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Interspecific Cross-Mating BetweenAedes aegyptiandAedes albopictusLaboratory Strains: Implication of Population Density on Mating Behaviors

Cited by 12 publications

References 56 publications

Demonstration of resistance to satyrization behavior in Aedes aegypti from La Réunion island

Demonstration of resistance to satyrization behavior in Aedes aegypti from La Réunion island

The importance of male body size on sperm uptake and usage, and female fecundity in Aedes aegypti and Aedes albopictus

The concomitant effects of self-limiting insect releases and behavioural interference on patterns of coexistence and exclusion of competing mosquitoes

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