您的模型对于各种迁移阶段的群体选择有多敏感？
How sensitive is your model to the population selection for various migration phases?
对群体选择的理解一定要依赖于群体结构的假定。
I insist that only a presupposition of group structure can yield real understanding of the group selection.
这样你就有一个更大的群体选择，并有更多的机会交朋友。
That way you'll have a bigger group to choose from and have more chances to make friends.
一些群体选择了水，一些是植物界，矿物王国，或者是动物王国。
Some groups chose water, some the plant kingdom, the mineral kingdom, or the animal kingdom.
本文将林木树种单株选优原则和方法运用到林木群体选择和划分上。
This paper describes a method which has been used for stand population selection and classification based on the plus trees selection principle of a single tree.
根据社会不同特征群体选择特定媒介，专家称这种传播模式为分众传播。
According to different social groups to choose specific characteristics of the media, experts called this mode "Focus communication".
这种说法是不是经得住数学的考验(数学研究显示经典群体选择需要群族灭绝)，仍有待观察。
Whether it will pass the mathematical scrutiny which showed that classical group selection needs genocide remains to be seen.
由于老年人有着生理学、药理学等各方面的特点，因此为这个特殊的肿瘤群体选择合适的治疗方案具有一定的挑战性。
Because elderly patients often present with physiological and pharmacological exceptionality, the selection of optimal treatment for them is more challenging.
群体选择理论是说：进化可以通过生命体整个群体的生存能力差异来产生，而不是个体的生存差异。 这一理论之所以被否定是因为从数学上看它不太可信。
The idea that evolution can work by the differential survival of entire groups of organisms, rather than just of individuals, was rejected because it is mathematically implausible.
群体选择理论对此提出了一个解释，即尽管由于利他者相对于利己者处于不利的位置，利他者在每一个群体中的频率都会下降，但利他者在总体中的频率却有可能上升。
The theory of group selection proposed an explanation-even if the frequency of altruists is decreasing in every group of a deme, it can still increase in the whole population.
“这似乎是自然选择在一个群体中发挥作用的完美机会。”伊拉尔多博士说。
"It seemed like the perfect chance for natural selection to act on a population," said Dr. Ilardo.
之所以选择这个名字，是因为它呼应了“意大利裔美国人”和“爱尔兰裔美国人”之类的群体标签，这些群体已经摆脱了普遍的歧视。
This one was chosen because it echoed the labels of groups, such as "Italian Americans" and "Irish Americans", that had already been freed of widespread discrimination.
蜜蜂们整个群体一起选择迁去哪个新巢。
如果一条鱼要在两个群体中选择，加入较大的群体会更安全。
If a fish has a choice between two groups, it's safer to join the larger one.
它们制造工具来寻找食物，拥有天生的决策技能，可以选择加入哪个群体，吃什么食物。
They make tools to find food, they possess innate decision-making skills, and they make choices about which groups to join and what foods to eat.
在一些国家，人们一般不会选择食用一些动物群体，如狗。
In some countries, people don't always choose some animal groups, such as dogs, for food.
这激起了一场争论，到底这种现象是误差，或是自然选择偏爱的结果(至少当它在群体中只占有稀少比例时)。
That has provoked a debate about whether the phenomenon is an aberration, or whether natural selection favours it, at least when it is rare in a population.
有些进化生物学家认为自然选择也会偏爱群体，而不仅仅是个人，但是这个观点很有争议。
Some evolutionary biologists believe that natural selection can favor groups of people, not just individuals, but the idea is hotly disputed.
而且这或许也不是坏事。我们首次从社交媒介获得的，是对于我们的150人的群体的选择机会。
And maybe this is no bad thing. What social media gives us, for the first time, is the chance to choose our own group of 150.
我们首次从社交媒介获得的，是对于我们的150人的群体的选择机会。
What social media gives us, for the first time, is the chance to choose our own group of 150.
对于门户项目的需求收集，重要的是明确地定义项目的范围，因为这将在很大程度上影响所选择的用户群体。
What is important about requirements gathering in a portal project is to clearly define the scope of the project in terms of how this will impact the chosen user community.
生活在“和平墙”下的人们是该地区最为贫困的群体，而且他们也少有其他的选择。
People who live near them are the poorest in the region, and have fewer choices.
现在，您已经知道了确定企业目标以及选择试点群体的重要性。
You now know the importance of determining your business goals and selecting a pilot audience.
爱因斯坦的父亲，赫尔曼，于1847年生于布彻的斯瓦比亚村，这个犹太人群体刚刚开始享受自由选择工作的权利。
Einstein's father, Hermann, was born in 1847 in the Swabian village of Buchau, whose thriving Jewish community was just beginning to enjoy the right to practice any vocation.
事实上，大部分中立变异都会被自然选择除灭，只有小部分在群体中传播并因此固定下来。
In fact, while the vast majority of neutral mutations die out, a few spread throughout a population and thus become \ \ \ \ \ \ \ "fixed \ \ \ \ \ \ \".
他认为，自然选择对于那些曾经是利他主义者的人是有利的，因为我们的祖先生活在小而密集的群体中，人们的利他主义可以指望得到相互间的利益互惠。
He argues that natural selection favored humans who were altruistic because in the small, close-knit groups in which our ancestors lived, altruists could expect reciprocity.
第二重要的因素是选择正确的试点群体。
The second most important factor is selecting the right pilot audience.
第二重要的因素是选择正确的试点群体。
The second most important factor is selecting the right pilot audience.
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