Oviposition preferences of the mosquito Aedes aegypti Linnaeus, 1762 (Culicidae): an urban environment bioassay

Abstract

The establishment of an invasive species depends on reproductive success and dispersion capability in the new environment. One of the striking examples of invasion in urban environments is the mosquito Aedes aegypti Linnaeus, 1762 (Culicidae). The success of this species is primarily attributed to its ability to colonize urban environments, and some of the important adaptive strategies associated with this ability is the preference for humans as a blood source and intense occupation of residential (indoor) environments. This study evaluated the effects of location (indoor vs. outdoor) and water nutrient level (% organic matter) on the oviposition preference of A. aegypti in an urban environment. We used oviposition choice experiments to evaluate mosquito oviposition in containers holding 1:1 vs 1:0 ratios of water: organic matter placed indoors and outdoors. Eggs were sampled once per week for nine weeks. Our results revealed a strong oviposition preference for outdoor containers, with a significant preference for containers with higher concentrations of organic matter during the fifth to ninth weeks. However, mosquitoes occupying indoor environments did not prefer to lay eggs in containers with lower levels of organic matter. A better understanding of the preferences of A. aegypti regarding the nutrient level and location of oviposition containers can increase our understanding of the behavioral factors allowing mosquitoes to utilize anthropogenic environments.

Habitat Aedes aegypti dan Aedes albopictus sebagai Vektor Potensial Demam Berdarah Dengue di Kecamatan Ranomeeto Barat, Provinsi Sulawesi Tenggara

“…albopictus. 48,49,51 Cahyati dan Siyam dalam penelitiannya mengenai perbedaan oviposisi Ae. aegypti di berbagai jenis bahan wadah menemukan bahwa Ae.…”

Egg-laying by female Aedes aegypti shapes the bacterial communities of breeding sites

“…Several biotic and abiotic elements present in water are known to drive the selection of oviposition sites by gravid females. These include the presence of conspecifics and/or predators, organic matter, surrounding vegetation, moisture, salinity, ammonium, and phosphate (Wong et al, 2011; Onchuru et al, 2016; Kroth et al, 2019; Hery et al, 2021). Furthermore, microbial communities present in water-holding containers have been shown to influence Ae.…”

Next-Generation High-Throughput Sequencing to Evaluate Bacterial Communities in Freshwater Ecosystem in Hydroelectric Reservoirs

“…Different biotic and abiotic elements present in water can influence the selection of oviposition sites by Aedes aegypti gravid females [ 25 ]. These include the presence of organic matter, surrounding vegetation, moisture, salinity, ammonium, and phosphate [ 26 , 27 , 28 , 29 ]. Moreover, microbial communities present in breeding sites have been shown to influence oviposition [ 30 , 31 ].…”