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.

Quartile : Q2, Sujet : ECOLOGY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Economie-gestion

Résumé : 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 : La Réunion, France

Mots-clés complémentaires : pyriproxifène

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

Classification Agris : L73 - Maladies des animaux
L70 - Sciences et hygiène vétérinaires - Considérations générales

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

Agences de financement européennes : European Commission

Programme de financement européen : H2020

Projets sur financement : (EU) Revolutionizing Insect Control

Auteurs et affiliations

• Haramboure Marion, CIRAD-BIOS-UMR ASTRE (REU) ORCID: 0000-0002-5738-8216 - auteur correspondant
• Labbe Pierrick, ISEM (FRA)
• Baldet Thierry, CIRAD-BIOS-UMR ASTRE (REU) ORCID: 0000-0003-2979-9517
• Damiens David, IRD (FRA)
• Gouagna Louis-Clément, IRD (FRA)
• Bouyer Jérémy, CIRAD-BIOS-UMR ASTRE (AUT) ORCID: 0000-0002-1913-416X
• Tran Annelise, CIRAD-ES-UMR TETIS (REU) ORCID: 0000-0001-5463-332X

Source : Cirad-Agritrop (https://agritrop.cirad.fr/595415/)

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