How Mosquito Age and the Type and Color of Oviposition Sites Modify Skip-Oviposition Behavior in Aedes aegypti (Diptera: Culicidae)?

2013 ◽  
Vol 27 (1) ◽  
pp. 81-91 ◽  
Author(s):  
L. O. Oliva ◽  
J. C. Correia ◽  
C. M. R. Albuquerque
Keyword(s):  
Aedes Aegypti ◽  
Oviposition Behavior ◽  
Oviposition Sites

scholarly journals Oviposition of the mosquito Aedes aegypti in forest and domestic habitats in Africa

2020 ◽  
Author(s):  
Siyang Xia ◽  
Hany K. M. Dweck ◽  
Joel Lutomiah ◽  
Rosemary Sang ◽  
Carolyn S. McBride ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Environmental Conditions ◽  
Oviposition Behavior ◽  
Oviposition Preference ◽  
Field Research ◽  
Divergent Evolution ◽  
Oviposition Choice ◽  
Behavioral Divergence ◽  
Global Vector ◽  
Oviposition Sites

AbstractThe theory of ecological divergence provides a useful framework to understand the adaptation of many species to anthropogenic (‘domestic’) habitats. The mosquito Aedes aegypti, a global vector of several arboviral diseases, presents an excellent study system. Ae. aegypti originated in African forests, but the populations that invaded other continents have specialized in domestic habitats. In its African native range, the species can be found in both forest and domestic habitats like villages. A crucial behavioral change between mosquitoes living in different habitats is their oviposition choices. Forest Ae. aegypti lay eggs in natural water containers like tree holes, while their domestic counterparts heavily rely on artificial containers such as plastic buckets. These habitat-specific containers likely have different environmental conditions, which could drive the incipient divergent evolution of oviposition in African Ae. aegypti. To examine this hypothesis, we conducted field research in two African locations, La Lopé, Gabon and Rabai, Kenya, where Ae. aegypti live in both forests and nearby villages. We first characterized a series of environmental conditions of natural oviposition sites, including physical characteristics, microbial density, bacterial composition, and volatile profiles. Our data showed that in both locations, environmental conditions of oviposition sites did differ between habitats. To examine potential behavioral divergence, we then conducted field and laboratory oviposition choice experiments to compare the oviposition preference of forest and village mosquitoes. The field experiment suggested that forest mosquitoes readily accepted artificial containers. In laboratory oviposition assays, forest and village mosquito colonies did not show a differential preference towards several conditions that featured forest versus village oviposition sites. Collectively, there is little evidence from our study that environmental differences lead to strong and easily measurable divergence in oviposition behavior between Ae. aegypti that occupy nearby forest and domestic habitats within Africa, despite clear divergence between African and non-African Ae. aegypti.

Comparative Skip-Oviposition Behavior Among Container Breeding Aedes spp. Mosquitoes (Diptera: Culicidae)

2021 ◽  
Author(s):  
Drew David Reinbold-Wasson ◽  
Michael Hay Reiskind
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Egg Production ◽  
Tap Water ◽  
Oviposition Behavior ◽  
Site Conditions ◽  
Gonotrophic Cycle ◽  
Spreading Behavior ◽  
Aedes Mosquitoes ◽  
Oviposition Sites

Abstract Container Aedes mosquitoes are the most important vectors of human arboviruses (i.e., dengue, chikungunya, Zika, or yellow fever). Invasive and native container Aedes spp. potentially utilize natural and artificial containers in specific environments for oviposition. Several container Aedes spp. display ‘skip-oviposition’ behavior, which describes the distribution of eggs among multiple containers during a single gonotrophic cycle. In this study, we compared individual skip-oviposition behavior using identical eight-cup testing arenas with three container Aedes species: Aedes aegypti (Linnaeus), Aedes albopictus (Skuse), and Aedes triseriatus (Say). We applied the index of dispersion, an aggregation statistic, to individual mosquitoes’ oviposition patterns to assess skip-oviposition behavior. Aedes aegypti and Ae. albopictus utilized more cups and distributed eggs more evenly among cups than Ae. triseriatus under nutritionally enriched oviposition media (oak leaf infusion) conditions. When presented with a nutritionally unenriched (tap water) oviposition media, both Ae. aegypti and Ae. albopictus increased egg spreading behavior. Aedes albopictus did not modify skip-oviposition behavior when reared and assessed under fall-like environmental conditions, which induce diapause egg production. This study indicates specific oviposition site conditions influence skip-oviposition behavior with ‘preferred’ sites receiving higher amounts of eggs from any given individual and ‘non-preferred’ sites receive a limited contribution of eggs. A further understanding of skip-oviposition behavior is needed to make the best use of autodissemination trap technology in which skip-ovipositing females spread a potent larvicide among oviposition sites within the environment.

Urban Landscape Features Influence the Movement and Distribution of the Australian Container-Inhabiting Mosquito Vectors Aedes aegypti (Diptera: Culicidae) and Aedes notoscriptus (Diptera: Culicidae)

2019 ◽  
Author(s):  
Brendan J Trewin ◽  
Daniel E Pagendam ◽  
Myron P Zalucki ◽  
Jonathan M Darbro ◽  
Gregor J Devine ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Urban Landscape ◽  
Mosquito Control ◽  
Control Strategies ◽  
Oviposition Behavior ◽  
Gaussian Kernel ◽  
Mosquito Vectors ◽  
Landscape Features ◽  
Rainwater Tanks

Abstract Urban landscape features play an important role in the distribution and population spread of mosquito vectors. Furthermore, current insecticide and novel rear-and-release strategies for urban mosquito management rarely consider the spatial structure of the landscape when applying control practices. Here, we undertake a mark-recapture experiment to examine how urban features influence the movement and distribution of Australian container-inhabiting Aedes vectors. We pay attention to the role of semipermanent water storage containers, called rainwater tanks, and the influence of movement barriers, such as roads, on the spread and distribution of vector populations. Results suggest that Aedes aegypti (Linnaeus) (Diptera: Culicidae) were more likely to be captured around rainwater tanks, and that released males travel throughout residential blocks but do not cross roads. Conversely, female Aedes notoscriptus (Skuse) (Diptera: Culicidae) movement was uninhibited by roads and rainwater tanks did not influence female distribution or oviposition behavior. Using an isotropic Gaussian kernel framework, we show that vector movement is likely to be greater when applying a temporal effect, than when estimated by traditional methods. We conclude that a greater understanding on the role of urban features on vector movement will be important in the new age of rear-and-release mosquito control strategies, particularly those where estimations of movement are important for ensuring efficacy of application.

Evaluation of BG-Sentinel Trap Trapping Efficacy for Aedes aegypti (Diptera: Culicidae) in a Visually Competitive Environment

2010 ◽  
Vol 47 (4) ◽  
pp. 657-663 ◽  
Author(s):  
Tamara S. Ball ◽  
Scott R. Ritchie
Keyword(s):  
Aedes Aegypti ◽  
Adult Population ◽  
Olfactory Cues ◽  
Visual Environment ◽  
Negative Effect ◽  
Gravid Females ◽  
Nulliparous Female ◽  
Bg Sentinel ◽  
The Impact ◽  
Oviposition Sites

Abstract The BG-Sentinel (BGS) trap uses visual and olfactory cues as well as convection currents to attract Aedes aegypti (L.). The impact of the visual environment on trapping efficacy of the BGS trap for Ae. aegypti was investigated. Four- to 5-d nulliparous female and male Ae. aegypti were released into a semicontrolled room to evaluate the effect of the presence, reflectance, and distribution of surrounding harborage sites on BGS trapping efficacy. Low-reflective (dark) harborage sites near the BGS had a negative effect on both male and nulliparous female recapture rates; however, a more pronounced effect was observed in males. The distribution (clustered versus scattered) of dark harborage sites did not significantly affect recapture rates in either sex. In a subsequent experiment, the impact of oviposition sites on the recapture rate of gravid females was investigated. Although gravid females went to the oviposition sites and deposited eggs, the efficacy of the BGS in recapturing gravid females was not compromised. Ae. aegypti sampling in the field will mostly occur in the urban environment, whereby the BGS will be among oviposition sites and dark harborage areas in the form of household items and outdoor clutter. In addition to understanding sampling biases of the BGS, estimations of the adult population size and structure can be further adjusted based on an understanding of the impact of dark harborage sites on trap captures. Outcomes from this suite of experiments provide us with important considerations for trap deployment and interpretation of Ae. aegypti samples from the BGS trap.

scholarly journals Attracted to the enemy: Aedes aegypti prefers oviposition sites with predator-killed conspecifics

Oecologia ◽  
2014 ◽  
Vol 175 (2) ◽  
pp. 481-492 ◽  
Author(s):  
Daniel Albeny-Simões ◽  
Ebony G. Murrell ◽  
Simon L. Elliot ◽  
Mateus R. Andrade ◽  
Eraldo Lima ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Oviposition Sites

scholarly journals Effects of Aqueous and Pelletized Admixture of Piper nigrum L. on the Oviposition Behavior of Aedes aegypti Mosquitoes and its Larvicidal-Ovicidal Activity

2012 ◽  
Vol 46 (3) ◽  
Author(s):  
Annabelle V. Briones ◽  
Alicia G. Garbo ◽  
Edmar P. Casa ◽  
Hermelina H. Bion ◽  
Nuna E. Almanzor ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Oviposition Behavior ◽  
Piper Nigrum ◽  
Ovicidal Activity

...

scholarly journals Aedes aegypti Males as Vehicles for Insecticide Delivery

Insects ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 230 ◽  
Author(s):  
Corey L. Brelsfoard ◽  
James W. Mains ◽  
Steve Mulligan ◽  
Anthony Cornel ◽  
Jodi Holeman ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Mosquito Control ◽  
Field Trials ◽  
Larval Survival ◽  
Initial Field ◽  
Breeding Sites ◽  
Larval Habitats ◽  
Control Techniques ◽  
Oviposition Sites ◽  
Lethal Doses

Aedes aegypti continues to spread globally and remains a challenge to control, in part due to its ‘cryptic behavior’ in that it often deposits eggs (oviposits) in larval habitats that are difficult to find and treat using traditional methods. Auto-dissemination strategies target these cryptic breeding sites by employing mosquitoes to deliver lethal doses of insecticide. This report describes the initial field trials of an application known as Autodissemination Augmented by Males (ADAM), utilizing A. aegypti males dusted with pyriproxyfen (PPF). Findings presented here are drawn from both caged and field trial studies. Together, these trials examined for the ability of A. aegypti males to disseminate PPF and to impact field populations. PPF-dusted males were able to effectively deliver lethal doses of PPF to oviposition sites under the conditions tested. Results from field trials in Florida and California demonstrated reduced A. aegypti populations in treated areas, compared to areas where PPF-treated males were not released. These results indicate that the release of PPF-dusted A. aegypti males can impact A. aegypti populations as measured by both reduced larval survival and lower numbers of adult female A. aegypti. We propose the ADAM approach as an addition to existing mosquito control techniques targeting A. aegypti and other mosquitoes that utilize cryptic larval habitats.

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