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      [Ecology of Stomoxys flies (Diptera: Muscidae) in Gabon. I. First survey in different ecological areas].

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          Abstract

          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 subspecies, 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.

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          Author and article information

          Journal
          Parasite
          Parasite (Paris, France)
          1252-607X
          1252-607X
          Mar 2008
          : 15
          : 1
          Affiliations
          [1 ] Institut de Recherche en Ecologie Tropicale (IRET), BP 13354, Libreville, Gabon. mavoungoujacques@yahoo.fr
          Article
          18416244

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