The reasons for the growth of the human population may be different , but the pattern may be surprisingly similar 决定人口数量的原因也许和细菌不同，但增长的过程却是类似的。
Under these conditions the growth of human population was also automatically limited by the limitations of food supplies 在这种条件下，人口的增长自然而然受到食品供应的限制。
These colossal changes in the composition and dynamics of the human population by and large escape public notice 人类人口的组成与动态发生了这些巨变，大体而言，并没有引起大众注意。
Human population never grew with such speed before the 20th century and is never again likely to grow with such speed 在20世纪之前，人类人口从来没有以那麽高的速率成长过，以后大概也不会了。
The study mainly points to an overall expansion in the human population over the past 40 , 000 years to explain the genetic data 这项研究主要认为重要观点是指在过去四万年的人口的扩张以解释基因数据。
Furthermore , study of these haplotypes makes it possible to trace the origins of founder mutations and to track human populations 此外，研究这些单纯型，让科学家能够追溯创始者突变的起源和族群的变迁。
The study of the characteristics of human populations , such as size , growth , density , distribution , and vital statistics 人口统计学对人口特征，例如数量、增长情况、密度、分布和人口动态统计等进行研究的学科
First is the exponential growth of the human population . world population has doubled since 1950 , and now stands at 5 , 600 million 从罗马尼亚的黑海水域到美国的路易斯安那湾流，伴们与盟邦们正建立起合作的桥梁。
The increasing pace of diversity loss thus imperils the " ecosystems services " that many human populations depend on for survival , the study says 研究表明,生物多样性丧失的步骤的持续加快危及许多人类赖以生存的生态系统
Over half of the human population lives within 100 kilometres of the sea . most of this population lives in urban areas that serve as seaports 全球有超过一半人口居住在沿海100公里的范围以内，其中大部份住在海港附近的城市区域。
