ミカンコミバエの生活史にみられる日周リズム

概要

論文の詳細を見る
Diel activity rhythms of the oriental fruit fly, Dacus dorsalis HENDEL, were studied by exposing insects to various conditions of light and temperature. The peak of ovipositing activity occurred between 12 : 00 and 14 : 00 (Japanese standard time) under the natural conditions, but any diel rhythmicity of hatching was not observed under either the natural conditions or in darkness at 25℃. The larval jumping behavior and the adult emergence showed no diel rhythmicity in constant light or darkness at 25℃. When exposed to naturally fluctuating temperatures either in the natural light conditions or in darkness, the greatest number of larvae jumped out from the culture at around sunrise, although the peak appeared a little later in the latter conditions. Under the same conditions of temperature in continuous light, many larvae jumped out in the night but the diel rhythm was not conspicuous. Adults emerged at about 10 : 00 when the insects had been subjected to the natural environment in November. The timing of the adult emergence seemed to be determined by the diel rhythm of environmental conditions during the larval stage, but it might be modified during the pupal stage. There was no fixed phase relationship between the jumping activity of larvae and the emergence of adult.
日本応用動物昆虫学会の論文
1975-12-25