Modelling the control of Aedes albopictus mosquitoes based on sterile males release techniques in a tropical environment

Haramboure Marion, Labbe Pierrick, Baldet Thierry, Damiens David, Gouagna Louis-Clément, Bouyer Jérémy, Tran Annelise. 2020. Modelling the control of Aedes albopictus mosquitoes based on sterile males release techniques in a tropical environment. Ecological Modelling, 420:109002, 22 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
Version Online first - Anglais
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Abstract : The Sterile Insect Technique (SIT), used to control insect populations, consists of releasing males sterilized by ionizing radiations. Wild females that mate with these males can no longer produce viable offspring, which may drives the population decline. Although this method has proved its efficiency, its effect may be more limited for fast-reproducing large-population species, such Aedes albopictus. A novel approach, named ”boosted SIT” has been designed to strengthen the SIT technique: It consists of coating sterile males with a biocide that will be transferred to the mated females, which will then contaminate the oviposition sites. This study is aimed at exploring demographic effects of both techniques (SIT and boosted SIT) through their inclusion in a weather-driven abundance model of the Aedes albopictus population dynamics in the geographical context of La Reunion Island. Sensitivity analysis showed that the date to start the release, as well as the quantity of sterile males released and their competitiveness, are of key importance for both control methods. According to our results, boosted SIT allows 1) Increasing the effectiveness of the SIT when the sterile males released are of medium quality in terms of competitiveness, and 2) extending the optimal window to start the control period.

Mots-clés Agrovoc : Aedes albopictus, Lâcher d'insectes stériles, Zone tropicale, Dynamique des populations, Vecteur de maladie, Contrôle de maladies, Modélisation

Mots-clés géographiques Agrovoc : Réunion

Mots-clés complémentaires : pyriproxifène

Mots-clés libres : Modelling, Sterile Insect Technique, Pyriproxyfen, Population dynamics, Mosquito, Boosted Sterile Insect Technique, Vector control

Classification Agris : L73 - Animal diseases
L70 - Veterinary science and hygiene - General aspects

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Agence(s) de financement européenne(s) : European Commission

Programme de financement européen : H2020

Projet(s) de financement européen(s) : Revolutionizing Insect Control

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