The ISTP team's research demonstrates that the population and job density of cities rose or remained constant in the 1980s after decades of decline.
ISTP团队的研究表明，在经历了几十年的衰退后，城市人口和工作密度在20世纪80年代上升或保持不变。
Targland plans to halt this population decline by blocking the current access routes into the desert and announcing new regulations to allow access only on foot.
塔格兰德计划通过封锁目前进入沙漠的通道，并宣布新的规定，即只允许步行进入沙漠，来阻止这种人口的减少。
If the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease would likely decline.
如果这些其他物种的种群数量增加，蜱类捕获细菌的数量就会减少，因此感染莱姆病的人数就会减少。
Fears are now being voiced that the planned construction of an oil pipeline across the lake's bottom might revive pollution and cause the fish population to decline again.
现在有人担心，计划修建的穿越湖底的输油管道可能会重新造成污染，导致鱼类数量再次下降。
With a decline in starfish predators, the starfish population can increase.
随着海星捕食者的减少，海星的数量会增加。
The question of whether the decrease in plant fecundity caused by the spraying of pesticides actually causes a decline in the overall population of flowering plant species still remains unanswered.
喷洒杀虫剂导致的植物繁殖力下降是否真的会导致开花植物物种总数的下降，这个问题仍然没有答案。
These fish and snails have themselves experienced a decline in population because of overfishing by humans.
由于人类的过度捕捞，这些鱼和蜗牛的数量已经有所下降了。
In the following sections, we verify our hypothesis and evaluate the role of climate change on war outbreak and population decline with empirical data at global and continental scales.
在以下的章节中，我们将以实证数据在大陆和全球的范围内验证验证我们的假说，评价气候变化对于战争爆发和人口下降的影响作用。
Beginning in 2004 the percentage of the world's population that became ill with TB in a given year flattened and then began a slow decline.
从2004年开始，在给定的年份中全世界因结核病而病倒的人口百分比不再增长，随后开始缓慢下降。
In a given area, the worst will usually be over in four to six weeks as the virus rushes through a susceptible population, cases peak and infections decline with equal speed.
在既定区域，最坏的情况是，当病毒急匆匆地冲向易感人群后的四到六周内，病例数到达顶峰，接着匀速下降。
What matters most for Japan’s economic growth prospects is the decline in its working-age population, those aged 15-64, which has been shrinking since 1996.
对日本经济增长前景最重要的影响因素是其工作年龄人口数量的下降。 工作年龄人口是指15~64岁间的人，自1996年以来一直在下降。
The dynamics vary significantly by region, with some regions, notably Europe, facing the prospects of a rapid decline in population and labor force.
各地区的发展趋势差异很大。有些地区，主要是欧洲地区，面临人口和劳动力急剧减少的前景。
Businesses needed to bring more old people and women into jobs, to counter the decline in the working-age population.
企业需要让更多的老人、妇女投入工作，以针对性地解决工作年龄的人口减少的问题。
Overall "we estimated the decline in this pig-nosed turtle population to be more than 50% since 1981," said Professor Eisemberg.
总体而言“我们估计从1981年以来猪鼻龟数量的下降超过了50%，”艾森·博格教授说道。
In some case, non-native species of oysters are introduced after a population decline, and they bring with them diseases that further kill off the native oysters.
在一些例子中，非本土种类的牡蛎会在本土数量下降后引入，它们随身带来的疾病会进一步杀死光本土牡蛎。
Toni Kern, a fisheries expert, said the consistent decline means the population has long-term problems, not cyclical declines and recoveries.
渔业专家托尼·克恩表示，数量持续下降意味着龙虾种群数量是个长期性的问题，而不是周期性的下降和回弹。
The lack of data on bee health has been a hurdle in identifying the causes of the population decline, the Commission has said.
委员会表示由于缺少蜜蜂健康数据将会影响对于蜜蜂数量下降原因的确定。
After decades of emigration and decline, Poland's Jewish population is growing again, as children sheltered in secret by gentile families during the war rediscover their roots.
移民数量在经历了几十年的下降之后，波兰犹太人的数量开始增加，因为很多得到好心人帮助幸免于难的犹太儿童开始寻根之旅。
The latest version of the department's annual State of the Birds report shows that nearly a third of the nation's 800 bird species are endangered, threatened or suffering from population decline.
该部门年度鸟类报告的最新数据显示，美国大约800个鸟类物种的三分之一由于种群数量减少而濒临灭绝。
As birth rates decline, the proportion of children shrinks and the working-age population bulges, as is happening now in Africa. That can kick-start industrialisation.
在生育率下降的同时，儿童数量的减少和适龄工人数量的增加，可刺激非洲的工业化进程。
It was the first country in the world to experience long-term population decline, starting in the late 18th century.
它是世界上第一个经历长期人口衰落的国家——从十八世纪就开始了。
In 2008, the estimated per capita TB incidence was stable or falling in all six WHO regions. However, the slow decline in incidence rates per capita is offset by population growth.
2008年，结核人均估计发病率在世卫组织所有6个区域中趋于稳定或下降，但是人均发病率缓慢下降被人口增长所抵消。
HIGH PROPERTY COSTS and a series of hurricanes have helped cause a 4 percent population decline.
高额的财产保险成本和一系列的飓风使当地人口锐减4%。
He teamed up with Walter Scheidel, a Stanford classicist and historian, to create a model of population growth and decline based on coin-hoard data gathered over the years.
他与WalterScheidel合作，Walter Scheidel是斯坦福的一个古典学者与历史学家。他们发明了一个人口增长模型，这个模型基于钱币藏匿的数据，这一工作已进行多年。
The population, currently about 127m, has already started to decline.
其现有人口为1.27亿，且已开始减少。
The cat's population is on the decline, mostly due to loss of habitat from deforestation. (See a picture of rare clouded leopard cubs born at a Virginia zoo.)
云豹的数量目前正在下降，绝大多数原因是来自其栖息地的森林砍伐。
Demographers believe Russia's population of 144 million will decline to 115 million by 2050, and one expert said it could fall as low as 77 million.
人口统计学家相信到2050年俄罗斯的人口将由目前的1.44亿人减低到1.15亿，有个别观点认为最低可能到达0.77亿人。
The economic slump has meant a growing share of the world's population is going hungry, after a steady decline since 1970.
自从1970年以来，在这种经济平稳下降之后，经济衰退意味着全世界人口中饥饿人数将增长。
In 1998, the labor force started to shrink, and a decade later, the country's population began to decline.
到了1998年，劳动力人数开始缩水，并且十年之后，国家人口数开始下降。
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