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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 91, No. 2, 1996, pp. 243-247
Bioline Code: oc96048
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 91, No. 2, 1996, pp. 243-247

 en The Effect of Different Proportions of Males and Females over the Chrysomya albiceps (Wiedemann 1819) (Diptera, Calliphoridae) Biotic Potential and Longevity Under Laboratory Conditions
Margareth Maria de Carvalho Queiroz; Rubens Pinto de Mello & Nicolau Maues da Serra Freire

Abstract

Chrysomya albiceps  specimens were derived from colonies
kept under laboratory conditions.  The oviposition period,
total number of eggs-mass and the weight of the eggs-mass
(average/female) presented significant differences between
colonies regarding the sexual ratio of 1male/1female
(situation I), when compared to the other ratios
(1male/3female, situation II), (1male/5female, situation III),
(3male/1female, situation IV) and (5 male/1female, situation
V).  It was ascertained that the increase  in the proportion
of females,  resulted in higher weight and greater number of
ovipositions and lenghtening of the period of oviposition,
leads to a decrease in  their lifespan.

Keywords
Chrysomya albiceps blowfly biotic potential longevity

 
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