Parasites and Vectors (2020) 13 (356) - Resting behavior of Aedes

Diawo Diallo and Mawlouth Diallo (2020)
Resting behavior of Aedes aegypti in southeastern Senegal
Parasites and Vectors 13 (356)
Abstract:
Background
Only the sylvatic and zoophilic population of Aedes aegypti was formerly identified in southeastern Senegal. A newly established anthropophilic population was detected in the urban area of the Kedougou city. Because of its new behavior, this species could play a primary role in the transmission of dengue and other arboviruses in this area. Because these arboviruses have no vaccine and specific treatments, vector control remains the only effective way to control their outbreaks. Effective vector control strategies require to understand some aspects of the bioecology of the vector, specially resting behavior. The aims of this study were to investigate the sites and resting behavior of Ae. aegypti in southeastern Senegal.
Methods
Mosquitoes were collected in several potential resting places (rooms, tires, bricks and scrap metal) by two technicians using a CDC back-pack aspirator in the Kedougou bus station and other sites within the city and the nearby rural area. Collected mosquitoes were identified and classified.
Results
A total of 1291 mosquitoes belonging to 6 genera and 20 species were collected. Aedes aegypti was the dominant species in all the resting places investigated. This species was found resting equally in rooms, bricks, tires and scrap metal. The average number of Ae. aegypti collected in resting places was higher in the bus station (center of the city) compared to the other areas. The rates of unfed and fed females varied significantly in the different resting places while the proportions of gravid females which varied between 7.8% in tires and 1.8% in rooms were comparable.
Conclusions
This study showed that Ae. aegypti could be found resting indoors and in several sites, including in used tires outdoors. These data will be helpful in setting better arboviruses surveillance and vector control strategies.
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Full text of article
Database assignments for author(s): Diawo Diallo

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
surveys/sampling/distribution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Culex quinquefasciatus		Senegal
	Anopheles gambiae		Senegal
	Aedes aegypti		Senegal
	Aedes vittatus		Senegal
	Culex decens		Senegal
	Culex nebulosus		Senegal
	Culex perfuscus		Senegal