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I did not claim that speciation occurs only in founder populations.

  • -- Ernst Mayr 迈尔

我并不是说物种形成只发生在创始人群体中。

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Population

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The poorer is a family, the greater is the proportion of the total outgo which must be used for food... The proportion of the outgo used for food, other things being equal, is the best measure of the material standard of living of a population.

一个家庭越穷，必须用于食物的总支出所占的比例就越大。在其他条件相同的情况下，用于食品的支出比例是衡量一个人口物质生活水平的最佳指标。

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Living in an entirely different physical as well as biotic environment, such a population would have unique opportunities to enter new niches and to select novel adaptive pathways.

生活在一个完全不同的物理和生物环境中，这样的群体将有独特的机会进入新的利基市场，并选择新的适应途径。

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