Begon Michael
Department of Pure and Applied Zoology, University of Leeds, LS2 9JT, Leeds, England.
Oecologia. 1976 Mar;23(1):31-47. doi: 10.1007/BF00351213.
The reproductive condition, insemination status and fat content of Drosophila obscura and D. subobscura were investigated in samples from natural populations, and in near-natural and artificial experimental situations. In Northern England D. obscura populations pass through either three of four generations per year, one of which includes a period of adult diapause which involves both reproductive condition and fat content. Appropriate day lengths lead to both the initiation and the breaking of this diapause. D. subobscura populations develop continuously and pass through from four to six generations per year. Females from both species were only rarely fertilised when immature. The dependence on both season and food-regime of development, rates in the various stages of both species have been examined and discussed.
在自然种群样本以及近自然和人工实验环境中，对暗果蝇和拟暗果蝇的生殖状况、授精状态及脂肪含量进行了研究。在英格兰北部，暗果蝇种群每年历经三代或四代，其中一代包含成年滞育期，这涉及生殖状况和脂肪含量。适宜的日照长度会引发滞育的开始和解除。拟暗果蝇种群持续发育，每年历经四代到六代。两种果蝇的未成熟雌性很少受精。对这两个物种发育各阶段的发育速率对季节和食物条件的依赖性进行了研究和讨论。
