幼虫の発育に及ぼす食物の生物的条件付けの影響 : コナマダラメイガ個体群の増殖能力に及ぼす棲息密度の影響4

概要

論文の詳細を見る
The influences of the population density might be explainable by some factors such as shortage of food, interference among larvae and the biologically conditioned environment. This study is intended to clarify the effect of the conditioned food upon the larval development of the almond moth, Ephestia cautella WALKER. The conditioned food used in this experiment is the rice bran containing the faeces of larvae. The results of this experiment are as follows. The duration of development in the immature stage is prolonged, the emergence of the moth occurs by degrees in a long period, and the percentage of emergence and the size of the moth are decreased with increasing the quantity of faeces added. These results resemble that of the effect of population density described in the author's previous paper(TAKAHASHI, 1956). In the present experiment, the conditioning of environment is only a factor producing to above results, and the amount of food as well as the available space of larvae are ignored. Therefore, it is assumed that the conditioning of environment plays a greater role to produce the general effect of population density.
日本生態学会の論文
1957-08-31