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Mesocosm experiments reveal the impact of mosquito control measures on malaria vector life history and population dynamics.

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Ng'habi, Kija, Viana, Mafalda, Matthiopoulos, Jason, Lyimo, Issa, Killeen, Gerry ORCID: https://orcid.org/0000-0002-8583-8739 and Ferguson, Heather M (2018) 'Mesocosm experiments reveal the impact of mosquito control measures on malaria vector life history and population dynamics.'. Scientific Reports, Vol 8, Issue 1, p. 13949.

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Abstract

The impact of control measures on mosquito vector fitness and demography is usually estimated from bioassays or indirect variables in the field. Whilst indicative, neither approach is sufficient to quantify the potentially complex response of mosquito populations to combined interventions. Here, large replicated mesocosms were used to measure the population-level response of the malaria vector Anopheles arabiensis to long-lasting insecticidal nets (LLINs) when used in isolation, or combined with insecticidal eave louvers (EL), or treatment of cattle with the endectocide Ivermectin (IM). State-space models (SSM) were fit to these experimental data, revealing that LLIN introduction reduced adult mosquito survival by 91% but allowed population persistence. ELs provided no additional benefit, but IM reduced mosquito fecundity by 59% and nearly eliminated all populations when combined with LLINs. This highlights the value of IM for integrated vector control, and mesocosm population experiments combined with SSM for identifying optimal combinations for vector population elimination.

Item Type: Article
Subjects: QX Parasitology > Insects. Other Parasites > QX 510 Mosquitoes
QX Parasitology > Insects. Other Parasites > QX 600 Insect control. Tick control
QX Parasitology > Insects. Other Parasites > QX 650 Insect vectors
WA Public Health > Preventive Medicine > WA 240 Disinfection. Disinfestation. Pesticides (including diseases caused by)
Faculty: Department: Biological Sciences > Vector Biology Department
Digital Object Identifer (DOI): https://doi.org/10.1038/s41598-018-31805-8
Depositing User: Stacy Murtagh
Date Deposited: 25 Sep 2018 08:55
Last Modified: 25 Sep 2018 08:55
URI: https://archive.lstmed.ac.uk/id/eprint/9352

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