But when you have a large population, well, the whole population can't just get up and move to follow a wild herd of animals.
但是当你所属的种群人数众多时，就不能整个种群一起追踪一群野生动物。
The idea of a world population crisis is therefore unlikely, although population pressure might have arisen in some areas.
尽管在一些地区可能出现了人口压力，世界人口危机是不太可能发生的。
Newman notes that Portland has about the same population as Perth and had a similar population density at the time.
纽曼指出，波特兰的人口与珀斯大致相同，而且它们当时的人口密度相近。
It is there that most of the world's population lives and it is there the population growth over the next decades will be the greatest.
那里是世界上大多数人口居住的地方，也是未来几十年人口增长最多的地方。
The population of the world continues to increase, but in some areas the population is falling.
世界人口继续增加，但在一些地区人口正在下降。
Even if the new population is of a different species, it can approximately fill the niche vacated by the extinct population and keep the food web intact.
即使新的种群属于不同物种，它也可以大致填补已灭绝种群空出的生态位，保持食物网的完整。
As a result, the nutrition of the general population improved tremendously and population soared in the early 1800s and so the shift of power from southern to northern Europe continued.
结果，广大民众的营养状况得到了极大的改善，人口数量在19世纪早期激增，因此从南欧向北欧的权利转移也得到了延续。
Low prey population levels then provide inadequate food for the predators, causing the predator population to decrease.
较少的猎物数量为捕食者提供了不足的食物，导致捕食者数量减少。
The weasel population also increased, following the growth of the chipmunk population.
黄鼠狼也随着金花鼠数目的增加增长了。
China is the world's most populous country with a population of 1.1 billion, which makes up approximately a quarter of the world population.
中国是世界人口最多的国家，有11亿，约占世界总人口的四分之一。
The nearer a society approximates to zero population growth, the older its population is likely to be-at least, for any future that concerns us now.
一个社会的人口增长率越接近零，它的人口就可能越老龄- - -至少对任何能关系到我们现在的未来是这样的。
THOMAS MALTHUS first published his “Essay on the Principle of Population”, in which he forecast that population growth would outstrip the world’s food supply, in 1798.
托马斯马尔萨斯在1798年首次发表的《人口论》中,他预测,人口的的增长将超越世界粮食供应能力.
Our population continues to grow, even as the shark population declines, so there are more chances of us encountering marine predators.
我们的人口一直在增长，而鲨鱼的数量却一直在下降，我们碰到这些食肉动物的可能性就更高了。
The other thing I have down is population, although the population of the U.S. has been pretty steady -that pink line looks awfully steady -and I have interest rates.
我还做了另外一个数据，就是人口数，而美国的人口数量一直都很平稳，粉色的那条线看起来非常平稳，我还做了利率的数据。
The number of yellow fever cases has increased over the past two decades due to declining population immunity to infection, deforestation, urbanization, population movements and climate change.
在过去二十年中，由于人群对疾病感染的免疫力下降、砍伐森林、城市化、人口流动和气候变化等因素的影响，黄热病病例数呈增加趋势。
Then we have the exclusion area, then we have the low population zone and then the population distance.
然后我们还有些禁止区域，还有低人口区域，还有人口距离。
China, with the largest population in the world, also ranks first in agricultural population.
中国拥有世界上最多的人口，农业人口也是世界第一。
It's unpopular to apply sustainability to the concept of population growth, as the word "population" evokes worries about state control and limits on reproductive freedom.
由于“人口”这个词会导致对于国家控制以及生育自由限制方面的忧虑，将可持续性加到人口增长的概念上并不为人所乐见。
Each time the bedrock of his support has been the indigenous population, which makes up around half of Bolivia's population.
每次支持他的基本盘都是原住民人口，构成玻利维亚人口一半左右。
Many European countries fail to make the most of their working-age population, even as that population is poised to shrink.
尽管许多欧洲国家的人口已经开始减少，适龄劳动力人口的就业却仍不充分。
In terms of obesity rate, the U.S. population is not far off from the overweight population model in this study.
按照美国目前的人口肥胖率，研究中的超重人口模型并非遥不可及。
In terms of obesity rate, the U. S. population is not far off from the overweight population model in this study.
按照美国目前的人口肥胖率，研究中的超重人口模型并非遥不可及。
In 1970 Japan's urbanisation ratio (the proportion of urban population to total population) was still just 53 per cent.
1970年，日本的城市化率(城市人口占总人口的比率)仅为53%。
Most of the population is ethnically Albanian (95% of the population). There is a Greek minority (3%).
人口中的大部分是阿尔巴尼亚人(人口中的95%)，少数是希腊人(3%)。
It also reduced climate dependence of growth rate of population (after A.D. 1400), postponed the time of population decrease, and accelerated subsequent population recovery.
人口增长对于气候变化的相关程度有所减弱(公元1400年之后)，表现为时间上的延缓和之后人口回复的加速。
The Canary Island population also shows genetic differences from the mainland population.
而加那利群岛上的居民也表现出了与大陆居民基因上的不同。
Finland has an estimated population of 5 million. About 93.4% of the population are Finns and 5.5% Swede.
据估计芬兰人口约有5百万，大约93.4%是芬兰人，5.5%是瑞典人。
ANd short of removing at least 80% of the people, the landcan not support the population and the population can not afford toimport goods.
而且，如果这个国家不能减去人口的80%，那么它就无法支撑它的人口。
ANd short of removing at least 80% of the people, the landcan not support the population and the population can not afford toimport goods.
而且，如果这个国家不能减去人口的80%，那么它就无法支撑它的人口。
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