Age structure and abundance in populations of muscoid flies from a poultry facility in Southeast Brazil

Memórias do Instituto Oswaldo Cruz

Rita Mp Avancini²  Gerson Ar Silveira¹ 

[1] ,Universidade Estadual de CampinasCampinas SP ,Brasil

关键词: filth flies;    gonadotrophic stages;    poultry manure;    pest control;    Brazil;   

DOI  :  10.1590/S0074-02762000000200022

来源: SciELO

【 摘 要 】

Muscina stabulans, M. domestica, Chrysomya putoria, C. megacephala and Stomoxys calcitrans were the most abundant muscoid flies captured in a poultry facility in southeastern Brazil. We examined the gonadotrophic profiles of the females caught at different sites and different times and found that Mu. stabulans and M. domestica, the predominant species, presented similar gonadotrophic profiles only when captured on the manure under the cages, but very different and sometimes opposite gonadotrophic profiles when sampled from wooden posts, vegetation or electric cords. We also determined sex ratios and relative abundance for these two species and found significant differences between them. More than 50% of the females of both species of Chrysomya captured on manure carried eggs or exhibited signs of recent oviposition. The vast majority of S. calcitrans presented ovaries with eggs or signs of recent oviposition. A small proportion of them had ovaries in the recent emerged condition. Our data on ovarian stages, sex ratio and relative abundance allowed us to associate different gonadotrophic profiles with each site and characterize each site as a resting, ovipositing or mating site.

【 授权许可】

CC BY   
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