シュルツェマダニ成虫の行動休眠の覚醒に関する予備的研究:中間目長の影響

概要

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The effects of photoperiod on the termination of behavioral diapause of Ixodes persulcatus Schulze adults reared in a laboratory (24°C, 16L-8D photoperiod) from egg to adult ecdysis was examined in plastic cylinders which were placed outdoors. The activity of the adults which were kept in the laboratory until March 2002 after they had molted (August 2001) and then transferred into a plastic cylinder was rarely found in the spring. However, the adults which were kept in the laboratory (16L-8D photoperiod) until August 2001 after molting (June 2001) and then exposed to a 12L-12D photoperiod (24°C) until March 2002 showed high activity in the spring. These results suggest that the exposure to a medium-day photoperiod is important for the termination of behavioral diapause of I. persulcatus adults.
2003-09-15