隔离种群

The variables, including the zygomatic breadth, least breadth between the orbits, greatest length of the nasals, oral height of the vertical ramus, were mainly responsible for this difference.

由于藏鼠兔在各山系内部属一较为常见的物种，分析认为其头骨形态的种群分化可能与隔离状态下局部环境差异导致的选择压力不同有关。

The variables, including the zygomatic breadth, least breadth between the orbits, greatest length of the nasals, oral height of the vertical ramus, were mainly responsible for this difference.

由于藏鼠兔在各山系内部属－较为常见的物种，分析认为其头骨形态的种群分化可能与隔离状态下局部环境差异导致的选择压力不同有关。

In contrast to the 20th century, the number of orang has decreased by more than 92% or so, and the number in Sumatra, however, decreased half during the period from 1993 to 2000, the left fauna only distributes in some islands, and they will be isolated on and on, thus the "emigrants" of orang remain rare.

与一个世纪以前相比，猩猩的数量已经减少了超过92%，而且在1993年和2000年之间，苏门达腊岛北部的数量就下降了整整一半。剩下的种群仅分布于一些小岛，而且它们将继续被隔离，因为猩猩很少向别处&移民&。

However, crossing fertility between them was lower than that of mating in and in, and fertilized egg of reciprocal crossing can be incubated and produced F〓 without prezygotic isolation. Among all combinations of reciprocal crossing, crossing of wild male quail×female small-type domestic quail are proved to produce the best effect.

野生日本鸣鹑与家鹑群体之间的杂交能育性低于同种群交配水平，但可以实现正、反交，产生受精卵、孵化出杂种一代，不存在合子前生殖隔离；在所有正、反交组合中，以野雄鹑×小型雌家鹑的效果最好。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。