地理上的隔离是隔离种群所必需的条件，且地理隔离的性质完全取决于生物体的生物学特性及其分散的可能性。
The nature of the geographic separation necessary to isolate populations depends entirely on the biology of the organism and its potential for dispersal.
这对于理解遗传变异性的空间变异、理解岛屿种群和其它隔离种群的保护问题有重要启示。
This has implications for our understanding of spatial variation in genetic variability and for problems of conservation on islands and in other isolated populations.
例如，当同一物种的种群彼此隔离时，然后就会向着两个不同的方向发展，从而形成两个截然不同的物种。
Like when populations of the same species are isolated from each other and then develop into two different directions and end up as two distinct species.
通过科瑞·福特斯和他的同事的调查得出，厄瓜多尔的蝴蝶种群与哥斯达黎加的蝴蝶种群一样，都具有白色与黄色种群的变异，但是并未达到一种显著的生殖隔离的水平。
The Ecuadorian population examined by Kronforst and his colleagues shows the same white and yellow variation found in Costa Rica but has not yet reached a level of strong reproductive isolation.
当生物学家说人和黑猩猩是由共同祖先进化来的时，他们的意思是，自从二者分野后，这两个隔离的种群都发生了延续性的可遗传变化。
When biologists say that humans and chimps have evolved from a common ancestor they mean that there have been successive heritable changes in the two separated populations since they became isolate.
生物健康专家正在隔离尚未发病的种群并对它们实行圈养，以此避免种群灭绝。
Animal health experts are sequestering populations where the disease has not yet appeared and are focusing on captive breeding programs to save the species from extinction.
生物学家们还预测，即使地理上隔离开的种群又返回到同一个地方，这些行为特点仍可能保持端始种分离，但是这方面的例子仍然十分少见。
Biologists have also predicted that these kinds of behavioral traits may keep incipient species separate even when geographically isolated populations somehow wind up back in the same place.
本文采用AFLP分子标记，以来自同一母体种群并在5种寄主植物上隔离饲养21个月、29个月和36个月的烟粉虱种群为样本，分析不同寄主和不同饲养时间样本的遗传变异。
The AFLP marker was used to analyse the genetic variation among different samples which were rearing 21 months, 29 months and 36 months separately collected from 5 host plants.
本文采用AFLP分子标记，以来自同一母体种群并在5种寄主植物上隔离饲养21个月、29个月和36个月的烟粉虱种群为样本，分析不同寄主和不同饲养时间样本的遗传变异。
The AFLP marker was used to analyse the genetic variation among different samples which were rearing 21 months, 29 months and 36 months separately collected from 5 host plants.
应用推荐