Age structure and abundance in populations of muscoid flies from a poultry facility in Southeast Brazil
Mem. Inst. Oswaldo Cruz
;
95(2): 259-264, Mar.-Apr. 2000.
Article
in English
| LILACS
| ID: lil-319966
RESUMO
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.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Oviposition
/
Poultry
/
Muscidae
/
Housing, Animal
Limits:
Animals
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2000
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade São Francisco/BR
/
Universidade de Campinas/BR
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