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Title: Population fluctuation of Anastrepha Schiner (Diptera: Tephritidae) species in Manaus Region, AM, Brazil
Other Titles: Flutuação populacional de espécies de Anastrepha Schiner (Diptera: Tephritidae) na Região de Manaus, AM
Authors: Ronchi-Teles, Beatriz
Silva, Neliton Marques da
Keywords: Anastrepha
Anastrepha Bahiensis
Anastrepha Coronilli
Anastrepha Distincta
Anastrepha Flavipennis
Anastrepha Leptozona
Anastrepha Obliqua
Anastrepha Serpentina
Anastrepha Striata
Issue Date: 2005
metadata.dc.publisher.journal: Neotropical Entomology
metadata.dc.relation.ispartof: Volume 34, Número 5, Pags. 733-741
Abstract: The population fluctuation of Anastrepha Schiner (Diptera: Tephritidae) species captured in McPhail traps was examined. Specimens of Anastrepha were collected weekly over a period of 80 weeks, from May 1996 to December 1997. The traps were baited with sugarcane syrup (10%) and distributed in two localities along the BR 174 highway: km 23 and km 40, north of Manaus, AM, Brazil. Thirteen species were collected: A. striata Schiner, A. obliqua (Macquart), A. leptozona Hendel, A. serpentina (Wied), A. distincta Greene, A. bahiensis Lima, A. antunesi Lima, A. coronilli Carejo e Gonzalez, A. furcata Lima, A. atrigona Hendel, A. flavipennis Greene, A. zernyi Lima and Anastrepha sp. 2 (not identified). The decisive factor governing the occurrence and population fluctuation of fruit flies was found to be the presence of fruit hosts rather than the abiotic factors. There was low correlation (r = 0.074, P > 0.05) between the number of fly/trap/day (FTD) and the precipitation. The time of highest precipitation coincided with the peak period of fructification. Unmeasured factors, such as alternative hosts, natural enemies and host succession probably influence the population of flies. For our knowledge, this is the first record of A. zernyi in Northern of Brazil.
metadata.dc.identifier.doi: 10.1590/S1519-566X2005000500004
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