Écologie des stomoxes (Diptera : Muscidae) au Gabon. I – Premier inventaire dans différentes zones écologiques

Parasite

et G. Duvallet¹  A. Atsame Edda³  J. Gilles²  P. Jay-robert¹  J.F. Mavoungou¹ 

[1] UMR 5175 CEFE (Centre d’Écologie Fonctionnelle et Évolutive), Université de Montpellier Languedoc-Roussillon,Montpellier,France;Institut für Vergleichende Tropenmedizin und Parasitologie,München,Germany;Institut de Recherche en Écologie Tropicale (IRET),BP 13354,Libreville,Gabon

关键词: Gabon;    distribution;    ecology;    Stomoxys spp.;   

Others  :  808558
DOI  :  doi:10.1051/parasite/2008151027

【 摘 要 】

The stomoxyine flies are hematophagous diptera and potential vectors of various pathogenic agents. Like those of the Afrotropical Region, the stomoxyine flies of Gabon remain nearly unknown. For these reasons, an entomological survey was conducted in a transverse way in eight localities representative of the various ecological zones of Gabon. The survey was based on the use of Vavoua traps. Various environmental factors able to influence the captures were noticed and included into a canonical correspondence analysis. In total, 15,966 Stomoxys spp., belonging to seven species or sub-species, were captured. The apparent densities (DAP) expressed as the number of flies per trap and per day, were highest in Franceville (41), Bakoumba (40), Makokou (25) and Mouila (21). The most abundant species were S. n niger (33.4%), S. transvittatus (33%), then S. calcitrans (17%). The principal factors that could explain the variability of the captures were the degree of anthropisation, the botanical facies (savanna or forest), the presence of wild and domestic fauna and the nature of the vegetal cover of the ground. S. calcitrans, S. niger niger were abundant in the areas where human presence was manifest. S. xanthomelas was present in forest belts. S. transvittatus, S. omega, S. inornatus were ubiquitous species. S. niger bilineatus was found in savannas areas.

【 授权许可】

   
© PRINCEPS Editions, Paris, 2008