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Artificial resting sites: An alternative sampling method for adult mosquitoes
Linda Jaworski1,2, Felix Sauer1,2, Stephanie Jansen2,3
1Research Group Aquatic Ecology and Nature Conservation, Institute of Biology and Environmental Sciences, School of Mathematics and Science, Carl von Ossietzky University, Oldenburg, Germany.
Medical and Veterinary Entomology
|November 26, 2021
Summary
Artificial resting sites capture more male and engorged female mosquitoes than standard traps. These sites are valuable for host-feeding studies and cost-effective mosquito surveillance.
Area of Science:
- Entomology
- Vector Ecology
- Medical Entomology
Background:
- Mosquito collections typically use traps targeting host-seeking females.
- Resting sites capture a more diverse mosquito population, including males and engorged females.
Purpose of the Study:
- Evaluate the efficacy of artificial resting sites for mosquito sampling.
- Compare resting sites with standard carbon dioxide-baited traps.
- Assess the influence of resting site characteristics (size, height, substrate) on collection success.
Main Methods:
- Deployed artificial resting sites on trees (deciduous/coniferous) at varying heights.
- Operated carbon dioxide-baited Biogents Sentinel traps (BG traps) concurrently.
- Analyzed mosquito species composition, abundance, and physiological status (e.g., blood-engorged).
Main Results:
- BG traps collected more total specimens, but resting sites yielded a higher proportion of males and blood-engorged females.
- Resting sites collected more Culiseta spp. but fewer Aedes spp. compared to BG traps.
- Smaller resting sites and those at higher elevations captured fewer specimens and species.
Conclusions:
- Artificial resting sites are effective for collecting specific mosquito populations, particularly males and engorged females.
- Resting sites are advantageous for host-feeding pattern studies and xenosurveillance.
- Optimizing resting site size and placement enhances mosquito collection efficiency and cost-effectiveness.
