Sep 23, 2019

An assessment of adult mosquito collection techniques for studying species abundance and diversity in Maferinyah, Guinea

BioRxiv : the Preprint Server for Biology
Cintia Cansado UtrillaThomas Walker


Background: Guinea is a West African country with a high prevalence of vector-borne diseases where few entomological studies have been undertaken. Although several mosquito collection methods are routinely used for surveillance in vector control programmes, they target different behaviours causing bias in species diversity and abundance. Given the paucity of mosquito trap data in West Africa, we compared the performance of five trap-lure combinations and Human Landing Catches (HLCs) in Guinea. Methods: Five mosquito traps were compared in a 5x5 Latin Square design for 15 days in three villages in Guinea between June and July 2018. CDC light traps, BG sentinel 2 traps (with BG and MB5 lures), gravid traps and Stealth traps were deployed for 24-hour intervals with mosquitoes collected every 12 hours (day and night collections). HLCs were also performed for 15 nights. A Generalised Linear Mixed Model was applied to compare the effect of the traps, sites and collection times on the mosquito abundance. Species identification was confirmed using PCR-based analysis and Sanger sequencing. Results: In total, 10,610 mosquitoes were captured across all five traps. Significantly more mosquitoes (P<0.005) were collected by Stealth traps (7,...Continue Reading

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