フユシャクの行動と環境との関係 : Erannis属2種の場合
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概要
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The behavior of the adult winter moths in an oak forest were studied in the winter season, in relation to the variation of the temperature and light. Among the 12 species of winter moths distributed around Tokyo, the results of study on Erannis obliquaria and E. dira are as follows : 1) In a deciduous forest near Tokyo, there are three different temperature zones : that is, the southern, the central and the northern part of the forest. Each part was divided into three layers, that is, the lower, the middle and the upper parts. 2) Adult males tended to concentrate at the southern part of the forest, and their movement in the forest was influenced by the variation of temperature and light. 3) The emergence of the moths was seen at noon when the ground temperature reachedthe maximum. After the emergence the female moth climbed up and down the tree, with relation to the variation of the temperature, and during night they remained at the middle layer where the hight temperature was higher than the other layers. 4) The female moths were more active than the male under the lower experimental temperature. The male moths of which wings were artificially eliminated, could walk more at the layer of lower temperature than the normal males, probably because of the wing area. 5) According to the variation of the light intensity, under the experimental hours, the males begun to walk and fly under the light of 5 Lux, and the females begun to walk under the light of 25〜30 Lux, but below 10 Lux, both stopped.
- 日本生態学会の論文
- 1966-04-01
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- フユシャクの行動と環境との関係 : Erannis属2種の場合