ヤマダシマカAedes flavopictusの日周活動と24時間明暗サイクルの位相関係
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概要
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CHIBA, Yoshihiko (Biological Institute, Yamaguchi University, Yamaguchi) Phase angle relationship between the circadian activity of the mosquito, Aedes flavopictus, and 24 hr LD cycles. Jap. J. Ecol. 21,221-226 (1971) The circadian activity of the mosquito Aedes flavopictus was assayed under 24 hr LD cycles of different L : D ratios. Under the shortest photoperiod (LD 4 : 20), the major peak of activity started just before the onset of darkness (dusk). But as the photoperiod was lengthened, the major peak began earlier and earlier than dusk. In addition such advance of the major peak from dusk occurred in the same direction as a shift of the onset of light(dawn). A possible explanation for this is that the times of both dusk and dawn combinationally determine the time of the onset of the major peak.
- 1971-12-31