再假设，种群迁往一个地方——如尼罗河上游，那里的人的特点是身材高大。
Suppose this population migrates to a region, like the Upper Nile, where it is an advantage to be very tall.
这些自然和人为的特点似乎能增加种群的局部瓶颈和灭绝的频率。
Such natural and anthropogenic characteristics are likely to increase the frequency of local bottlenecks and extinctions.
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.
根据直播稻区稻水象甲种群动态和分布特点，提出了相应的虫情调查和测报防治建议。
Some Suggestions for the pest forecast and control were also brought forward based on the characteristics of the pest population dynamics and distribution in the direct seeded rice field.
刺五加种群的高度结构与径级结构的变化都与群落环境以及本身的年龄结构特点有关。
The height structure and diameter structure of A. senticosus population relate with community environments and with its own age structure characteristics.
湖泊生物种群少且生物量低，缺失蓝藻和腹足类、瓣鳃类、甲壳类动物等为其区别于一般中、碱性湖泊最显著的特点。
Few species, low biomass and lack of blue green algae, Gastropoda, Lamellibranchia and Crustacea are most notable characteristics distinguished from general neutral and alkaline lakes.
目的：查清全省蜚蠊种群地理分布特点，进行防制对策研究。
Objective: To investigate the features of the population and the distribution of the cockroach in Zhejiang province, and research the control strategy.
对当前堆肥中微生物种群分布及其对有机物分解作用的研究进行分析，论述了分子生物技术中的变性梯度凝胶电泳（DGGE）的特点。
Studies on the distribution of microbe and their degradation of organic material in compost are presented, and the character of denaturing gradient gel electrophoresis (DGGE) method is also discussed.
目的 掌握自然种群白纹伊蚊幼虫在广州地区的孳生分布特点，为白纹伊蚊自然种群变动的监测与控制提供依据。
Objective To realize the distribution characteristics of Aedes albopictus larva in Guangzhou, which is the basic for the surveillance and control of natural population of Ae. albopictus.
介绍粗糙集理论的基本概念及特点，尝试将其与震害预测工作联系，建立一种群体震害预测模型。
This paper introduce the basic concept and character of rough set theory, and attempt to combine seismic damage prediction, then set up a model of congregated seismic damage prediction.
目的了解广州市城区蚊虫自然种群幼虫的孳生地类型及种群分布特点。
Objective to find out the types of the breeding places of the mosquito larvae and the distribution characteristics of the natural mosquito population in urban area of Guangzhou.
取代的是，他们争论在一个多种族社会中黑人可以和其他人种群体共存，这个社会包容各种不同肤色、特点的群体，彼此间相互尊重。
Instead, they argued, blacks ought to coexist with other groups in a plural society containing different and distinctive communities living in mutual respect.
取代的是，他们争论在一个多种族社会中黑人可以和其他人种群体共存，这个社会包容各种不同肤色、特点的群体，彼此间相互尊重。
Instead, they argued, blacks ought to coexist with other groups in a plural society containing different and distinctive communities living in mutual respect.
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