ヤマトイソユスリカTelmatogeton japonicus TOKUNAGAの日週期活動 : 特に海風と陸風との関係

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概要

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• 1. The midge, Telmatogeton japonicus TOKUNAGA, inhabits on the rocky sea-shore near Karo, Tottori City. We studied the daily rhythmic activity of this midge, with special reference to its swarming in the early morning and evening. 2. Observations were made in the early spring of 1952. In the early morning, after sunrise they creep out from their resting place of the night in the crevices of rocks. On the rock surfaces they walk at first slowly; then, as the day progresses and the solar illumination increases to about 500 Lux, begin to fly in mass, and move towards the island, getting on the "sea wind" blowing at that time, where they pass through the daytime feeding on various microorganisms. In the evening activities of midges decrease with the lowering of solar illumination, and as soon as the "land wind" begins to blow, they get on it and begin their evening mass flight to the nocturnal resting place. 3. The daily rhythmic activities seem to be controlled chiefly by the solar illumination, and other climatic elements in the morning or evening may have only secondary meanings. 4. As mentioned above, the animals utilize the sea or land wind only when they attempt to take the morning or evening journey, whereas these winds are blowing from time to time throughout the day. This fact seems to reveal that the wind is taken as the effective factor by the animals through their subjective response, not through the mere objective action of the wind, as stated by MORI ('52).

• 1955-10-31

著者

• 恩藤 芳典

  鳥取大学学芸学部生物教室

• 菊一 繁男

  鳥取大学学芸学部生物学教室

関連論文

• ヤマトイソユスリカTelmatogeton japonicus TOKUNAGAの日週期活動 : 特に海風と陸風との関係
• フナムシMegaligia exotica(Roux)の週期活動 : I.野外での観察
• ハマダンゴムシTylos granulatus MIERSの日週期活動 : V.波の運動に伴う週期活動に関係する生理条件の解析
• ハマダンゴムシTylos granulatus MIERSの日週期活動 : III.発育にともなう週期活動の変化
• フナムシ Megaligla exotica(Roux)の週期活動 : II. 群れをなしての週期移動と体内生理要因及び潮汐週期との関連

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