In natural populations, individuals often are distributed more or less discontinuously to form numerous colonies, and individuals may be exchanged between adjacent or nearby colonies.
在自然种群中，个体往往分布不连续，从而形成或多或少的聚居点，相邻或邻近的聚居点之间有一定的个体交流。
It's in these populations that we begin to see real changes in the genetic makeup of natural coloring.
正是在这些种群中，我们开始看到自然色彩的基因构成发生了真正的变化。
But it's hard to tell in most natural populations whether inheritance is due to DNA sequence variation or epigenetic changes.
但在自然界大多数种群中，很难判断遗传是否源于DNA序列改变或者表观基因变异。
In some regions, natural disasters or misguided policies, or both, compound already severe situations and render them catastrophic for the most discriminated and marginalized populations.
在某些地区中，自然灾害或不当的政策或是两者皆有之的情形不仅加剧了本已严峻的形势，还使那些最受歧视或处于社会边缘的人群遭受更大的灾难。
With time, natural selection will tend to flush the deleterious SNPs out, as it has done — relatively speaking — in African populations.
假以时日，自然选择会逐渐清除有害的SNPs，就像它曾经对非洲群体——相对而言——所作的那样。
Malthus argued that natural populations grow at an exponential rate, whereas the increase in food supply is linear.
Malthus论证说，自然群体的数量是呈指数级增长的，而食物供应的增加却是呈线性的。
With few natural predators, they have been rapidly expanding in Caribbean and Atlantic waters, voraciously preying on local fish, shrimp and crab populations across the region.
狮子鱼的天敌极少，主要以小鱼、虾和螃蟹味主食，它们在加勒比海和大西洋海域迅速繁殖起来。
If we take from the wild we must do it in ways that allow natural populations to recover and last long into the future.
如果我们在野外，我们必须采取的这样的方式使自然种群的恢复和持续，一直持续到未来很长的时间里。
Association mapping is one of the important ways to detect QTLs and reveal genetic bases of target traits in the natural populations.
利用自然群体进行关联分析是检测目标性状qtl、揭示其遗传基础的有效方法。
One of the most universal phenomena of all natural populations is their variability in Numbers in space and time.
自然种群最普遍的现象是其数量在时间和空间上的变异性。
Pathogenic fungi are common in natural plant populations, which exert impacts of the size, structure, dynamics, genetics and evolution of host plant populations.
病原菌在自然植物种群中普遍存在，其对寄主植物的生长发育，对寄主植物种群的大小、结构、动态、遗传和进化等都有重要影响。
Results the predominant antibody of serogroup was Sejroe with positive rates of 34.13% and 25.82% in patients and natural populations respectively in these areas.
结果该地区自然人群及病人血清抗钩端螺旋体抗体现以赛罗群棉兰型为主，其阳性率分别为34.13%和25.82%。
Significant difference was found in natural enemies community and populations among vegetations with different degree of coverage.
发现不同植被覆盖度内的飞蝗天敌群落和数量有明显的差异。
A principal challenge in testing the role of natural selection in speciation is to connect the build-up of reproductive isolation between populations to divergence of ecologically important traits.
检验自然选择在物种形成中的作用的一个主要挑战是，将生殖隔离的出现与有着生态学重要性的特征联系起来。
We conducted an extensive field survey of current geographic distribution of their natural range, and in situ and ex situ conservation status of the remnant populations of the two genera.
本研究通过野外调查，了解了中国秤锤树属与长果安息香属植物的地理分布、濒危现状及其迁地保护状况。
Five basic steps that can reduce the risk for communicable disease transmission in populations affected by natural disasters are summarized in an online table (Appendix table).
在附录表里总结了灾后减缓传染病传播的五个基本步骤。
Five basic steps that can reduce the risk for communicable disease transmission in populations affected by natural disasters are summarized in an online table (Appendix table).
在附录表里总结了灾后减缓传染病传播的五个基本步骤。
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