ANÁLISE FAUNÍSTICA E FLUTUAÇÃO POPULACIONAL DE MOSCAS-DAS-FRUTAS (DIPTERA: TEPHRITIDAE) EM BELMONTE, BAHIA
2011
MÍRIAN DA SILVA SANTOS | KELLY INDIO NAVACK | ELTON LUCIO DE ARAUJO | JANISETE GOMES DA SILVA
This study was carried out in a mixed orchard in the municipality of Belmonte, in the southernmost region of Bahia and it aimed at characterizing the fruit fly (Diptera: Tephritidae) population using faunistic analysis and studying its population fluctuation. The study was conducted from August 2007 to August 2009. Fruit fly captures were carried out using McPhail traps baited with protein hydrolisate at 5%. Weekly, the captured insects found in traps were transferred to plastic vials, one vial per trap, filled with 70% ethanol and taken to the laboratory for identification. A total of 9,709 fruit flies was captured, out of which 9,477 specimens were Anastrepha (5,908 females and 3,569 males) and 232 specimens were Ceratitis capitata (Wiedemann) (201 females and 31 males). Nine species of Anastrepha were recorded: Anastrepha bahiensis (Lima) (2.59%), Anastrepha distincta (Greene) (2.71%), Anastrepha fraterculus (Wiedemann) (59.37%), Anastrepha leptozona (Hendel) (0.02%), Anastrepha manihoti (Lima) (0.02%), Anastrepha obliqua (Macquart) (2.98%), Anastrepha serpentina (Wiedemann) (0.07%), Anastrepha sororcula Zucchi (29.14%), Anastrepha zenildae Zucchi (0.22%), and C. capitata (2.88%). Anastrepha fraterculus and A. sororcula were the dominant species and only A. fraterculus was constant on the orchard. The values of the Simpson (0.51) and of Shannon (01.35) indices were intermediate and the modified Hill index was 0.49, indicating a medium diversity. The high est capturevalues of Anastrepha spp. occurred from July to December 2008, with a population peak in September.
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