ArticleParasites & vectors2019
Investigating the blood-host plasticity and dispersal of Anopheles coluzzii using a novel field-based methodology.
Article in Parasites & vectors, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed.
- Entomological impact of three years of clothianidin-based indoor residual spraying in two high malaria endemic districts in Côte d'Ivoire.Malaria journal · 2025Article
- Mosquitoes in small urban spaces: identification of blood meals and flight distances of engorged females in the southern Great Plains of the United States.Journal of medical entomology · 2025Article
- The spatial heterogeneity of malaria transmission: An entomological investigation in a highly endemic setting of Burkina Faso.Current research in parasitology & vector-borne diseases · 2025Article
- Mitochondrial and microbial diversity of the invasive mosquito vector speciesWellcome open research · 2024Article
- disperseNN2: a neural network for estimating dispersal distance from georeferenced polymorphism data.BMC bioinformatics · 2023Article
- disperseNN2: a neural network for estimating dispersal distance from georeferenced polymorphism data.bioRxiv : the preprint server for biology · 2023Article
- Dispersal inference from population genetic variation using a convolutional neural network.Genetics · 2023Article
- Effects of storage conditions and digestion time on DNA amplification of biting midge (Culicoides) blood meals.Parasites & vectors · 2023Article
- Article
- Blood-feeding patterns of Anopheles vectors of human malaria in Malawi: implications for malaria transmission and effectiveness of LLIN interventions.Malaria journal · 2022Article
- Blood-feeding ecology of mosquitoes in two zoological gardens in the United Kingdom.Parasites & vectors · 2021Article
- Review
- Blood Meal Sources ofInsects · 2020Article
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11 authors.
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Abstract
backgroundThe biting behaviour and dispersal of insect vectors in the field underlies the transmission of many diseases. Here, a novel collection methodology coupled with the molecular analysis of blood-meal sources and digestion rates is introduced with the aim of aiding the understanding of two critical and relatively understudied mosquito behaviours: plasticity in blood-host choice and vector dispersal.
resultsA collection strategy utilising a transect of mosquito traps placed at 50 m intervals allowed the collection of blood-fed Anopheles coluzzii from a malaria-endemic village of southern Ghana where human host availability ranged from zero (a cattle pen), increasing until humans were the dominant host choice (the middle of the village). Blood-meal analysis using PCR showed statistically significant variation in blood-meal origins for mosquitoes collected across the 250 m transect: with decreasing trend in Bovine Blood Index (OR = 0.60 95% CI: 0.49-0.73, P < 0.01) and correspondingly, an increasing trend in Human Blood Index (OR = 1.50 95% CI: 1.05-2.16, P = 0.028) as the transect approached the village. Using qPCR, the host DNA remaining in the blood meal was quantified for field-caught mosquitoes and calibrated according to timed blood digestion in colony mosquitoes. Time since blood meal was consumed and the corresponding distance the vector was caught from its blood-host allowed the estimation of An. coluzzii dispersal rates. Within 7 hours of feeding, mosquitoes typically remained within 50 m of their blood-host but at 60 hours they had dispersed up to 250 m.
conclusionsUsing this methodology the remarkably small spatial scale at which An. coluzzii blood-host choice can change was demonstrated. In addition, conducting qPCR on host blood from field-caught mosquitoes and calibrating with timed experiments with colonised mosquitoes presents a novel methodology for investigating the dispersal behaviour of vectors. Future adaptations to this novel method to make it broadly applicable to other types of setting are also discussed.
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