Richards A V, Murray J
Heredity (Edinb). 1975 Feb;34(1):128-31. doi: 10.1038/hdy.1975.13.
The introduced colony of Cepaea nemoralis at Lynchburg, Virginia, contains only yellow shells. The population respond to the characteristics of the environment by adjusting the frequencies of the banding morphs and by regulating the amount of fusion of adjacent bands. In this respect they fulfill a prediction based on the observations of Clarke (1960) on British colonies of Cepaea hortensis.
引入弗吉尼亚州林奇堡的盖罩大蜗牛群体只包含黄色外壳。该群体通过调整条纹形态的频率以及调节相邻条纹的融合量来响应环境特征。在这方面，它们符合基于克拉克（1960年）对英国庭园蜗牛群体的观察所做出的预测。
