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/ Jérémy Bouyer
Journal of medical entomology. Stratified Entomological Sampling in Preparation for an Area-Wide Integrated Pest Management Program: The Example of Glossina palpalis gambiensis (Diptera: Glossinidae) in the Niayes of Senegal [texte imprimé] / Jérémy Bouyer, Auteur ; Mor Talla Seck, Auteur ; B. Sall, Auteur ; E.Y. Ndiaye, Auteur ; L Guerrini, Auteur ; M J B Vreysen, Auteur . - Dakar (PRH, Sénégal) : ISRA/LNERV, 2010 . - 10p. : Vol. 47, no. 4. Langues : Anglais ( eng) Catégories : | SCIENCES, PRODUCTION ET PROTECTION ANIMALES
| Mots-clés : | Échantillonnage, Contrôle de Vecteur, Tsetse, Afrique, Animal, trypanosomiase, Niayes du Sénégal | Index. décimale : | L731-Maladies parasitaires des ruminants, Symptomatologie et dégâts | Résumé : | The riverine tsetse species Glossina palpalis gambiensis Vanderplank 1949 (Diptera:
Glossinidae) inhabits riparian forests along river systems in West Africa. The government of Senegal has
embarked on a project to eliminate this tsetse species, and African animal trypanosomoses, from the Niayes
area usinganarea-wideintegrated pestmanagementapproach.AstratiÞedentomologicalsamplingstrategy
was therefore developed using spatial analytical tools and mathematical modeling. A preliminary phytosociological
census identiÞed eight types of suitable habitat, which could be discriminated from LandSat
7ETMsatellite images and denominated wet areas. At the end of March 2009, 683 unbaited Vavoua traps
had been deployed, and the observed infested area in the Niayes was 525 km2. In the remaining area, a
mathematical model was used to assess the risk that ßies were present despite a sequence of zero catches.
Theanalysisshowedthat this riskwasabove0.05 in19%of this area that willbeconsideredas infestedduring
the control operations. The remote sensing analysis that identiÞed the wet areas allowed a restriction of the
area to be surveyed to 4% of the total surface area (7,150 km2), whereas the mathematical model provided
an efÞcient method to improve the accuracy and the robustness of the sampling protocol. The Þnal size
of the control area will be decided basedonthe entomological collection data. This entomological sampling
procedure might be used for other vector or pest control scenarios. |
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