Drosophila melanogasterの野生種と白眼突然變異種の間の生存競爭におよぼす幼虫棲息密度の影響について第2報 : 羽化速度について

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1. Larvae of wild type and mutant "white" of Drosophila melanogaster were cultured in tubes (1.8cm in diameter, 9cm high) containing 3cc of Pearl's artificial food in each, separately or mixing. Numbers of larvae per tube were varied from 2^1 to 2^9 and number of emergence was counted. 2. The higher density of larvae is the longer time from hatching to emergence becomes in both cases above mentioned. 3. Time from hatching to emergence is rather indifferent in both cases of separate culture and mixed culture of "white", but affected by density in both cases of wild type. Above all, when cultured separately, density effect is great in culture of wild type. This is the reason why wild type emerges sooner than "white" in mixed culture in the case of low density but later in the case of high density. 4. It is confirmed that when cultured mixing, the strain which takes shorter time to emerge shows greater percentage occurrence of emergence to tatal number of emergence.
社団法人日本動物学会の論文
1953-06-15