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Aestivo‐hibernal reproductive diapause in Drosophila moriwakii : flight as a controlling factor
Author(s) -
Ichijô N.,
Beppu K.,
Kimura M. T.
Publication year - 1992
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/j.1570-7458.1992.tb00637.x
Subject(s) - diapause , biology , photoperiodism , drosophilidae , drosophila (subgenus) , population , zoology , reproduction , larva , ecology , botany , drosophila melanogaster , genetics , demography , gene , sociology
Drosophila moriwakii Okada & Kurokawa (Diptera; Drosophilidae) generally has only one generation per year and enters aestivo‐hibernal reproductive diapause in Sapporo, northern Japan, but a small fraction of the population produced a second generation in summer at a place where breeding resources were abundant. In this species, diapause seems to be controlled by flight activity. When flies were cultured in cages in which they were able to fly freely, they entered diapause irrespective of photoperiod, but they did not do so at long daylengths when cultured in small vials in which they were prevented from flying. Furthermore, flies with wings removed did not enter diapause at long daylengths even if they were cultured in the cages.