Longevity and fecundity of four species of Anastrepha (Diptera: Tephritidae)

Studies on fruit fly longevity and fertility are important to understand their demographic aspects and to orient implantation of integrated management strategies. This study investigated the longevity of adult Anastrepha species A. fraterculus (Wiedemann), A. sororcula (Zucchi), A. zenildae (Zucchi)...

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Published in:Neotropical entomology 2003-12, Vol.32 (4), p.543-549
Main Authors: Joachim-Bravo, Iara S.(Universidade Federal da Bahia Instituto de Biologia Departamento Biologia Geral), Magalhães, Tatiana C.(Universidade Federal da Bahia Instituto de Biologia Departamento Biologia Geral), Silva Neto, Alberto M. da(Universidade Federal da Bahia Instituto de Biologia Departamento Biologia Geral), Guimarães, Analice N.(Universidade Federal da Bahia Instituto de Biologia Departamento Biologia Geral), Nascimento, Antônio S.(EMBRAPA CNPMF)
Format: Article
Language:eng ; por
Subjects:
A. fraterculus
A. sororcula
A. zenildae
Anastrepha
Anastrepha obliqua
Demografia
Demography
ENTOMOLOGY
Tephritidae
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Summary:Studies on fruit fly longevity and fertility are important to understand their demographic aspects and to orient implantation of integrated management strategies. This study investigated the longevity of adult Anastrepha species A. fraterculus (Wiedemann), A. sororcula (Zucchi), A. zenildae (Zucchi) and A. obliqua (Macquart). The reproductive pattern was also assessed throughout the life of the species A. sororcula and A. obliqua and fertility at eighteen days of life of the four species. A. zenildae longevity was similar to A. sororcula, longer than A. fraterculus and followed by A. obliqua. No statistical difference between the sexes was observed, except for A. obliqua. The decrease in survival occurred fastest in A. obliqua followed by A. fraterculus and A. sororcula, which was similar to A. zenildae. The highest mean of eggs at 18 days of life was for A. obliqua, followed by A. fraterculus, A. zenildae and A. sororcula. The reproductive pattern over the lifespan differed among the species assessed. A. obliqua presented a longer reproductive period, with more than one oviposition peak and greater daily and total egg production. The differences observed in the survival patterns and egg production and oviposition in the Anastrepha species reflect strategies that may be associated with environmental stability and/or differential response capacity to unstable environments. Thus the existence of similar survival strategies can be suggested between A. obliqua and A. fraterculus and between A. sororcula and A. zenildae. Estudos sobre longevidade e fecundidade de moscas-das-frutas são importantes para o entendimento de seus aspectos demográficos e para orientar a implantação de estratégias de manejo integrado. Neste trabalho estudou-se a longevidade de adultos de Anastrepha fraterculus (Wiedemann), A. sororcula (Zucchi), A. zenildae (Zucchi) e A. obliqua (Macquart). Avaliou-se, também, o padrão reprodutivo ao longo da vida das espécies A. sororcula e A. obliqua e a fecundidade, aos dezoito dias de vida, das quatro espécies. A longevidade de A. zenildae foi semelhante à de A. sororcula e maior que de A. fraterculus, seguida de A. obliqua. Não diferiu estatisticamente entre os sexos, exceto para A. obliqua. O decréscimo da sobrevivência ocorreu mais rapidamente em A. obliqua, seguida de A. fraterculus e de A. sororcula, que foi semelhante a A. zenildae. A maior média de óvulos aos 18 dias de vida foi de A. obliqua, seguida por A. fraterculus, A. zenildae e A. sor
ISSN:1519-566X
1678-8052
1678-8052
DOI:10.1590/S1519-566X2003000400003