查询词典 populations

The table of contents include 6 parts, background to the study of evolution, patterns and history, evolutionary processes in populations and species, character evolution, macroevolution: evolution above the species Level, human evolution.

内容分为6部分，进化研究的背景，模式和历史，种群和物种的进化过程，进化特征，宏观进化：物种水平上的进化，人类进化。

The research areas of the Department include: Comparative ecology, physiology of plant populations, ecosystem science, community ecology, population biology, evolutionary genetics, macroevolution and systematics etc.

该系的研究领域包括：比较生态学、植物种群生理学、生态系统科学、群落生态学、种群生物学、进化遗传学、宏观进化和系统分类学等。

The pressures come from expanding populations, dam projects that flood tribal lands, and political and economic conflicts threaten the culture, lands, and lives of such groups as the Quechua of Peru, the Malagasy of Madagascar and the Ainu of Japan.

压力来自不断扩张的人口，淹没部落土地的水库项目以及威胁到文化、土地和一些族群的生命的政治和经济冲突。这些族群像秘鲁的盖秋亚人、马达加斯加的马尔加什人以及日本的阿伊努人。

Malthus argued that natural populations grow at an exponential rate, whereas the increase in food supply is linear.

在书中，马尔萨斯认为自然界中人口是以指数方式增长的，而食物的增长却是线性的。

Thus, in the Malthusian reading, populations always and inevitably outstrip their resource bases, and people are condemned tosuffering and misery as a result.

因此，马尔萨斯察觉，人口总和不可避免地将超过资源基础，结果人们将被谴责遭受到痛苦和苦难。

Marine mammal expert and World Wildlife Fund spokesperson, Dr Tom Arnbom, 50, from Stockholm, Sweden, thinks the bears in these images could be part of only two growing populations in the world

7楼海洋哺乳动物专家和世界野生生物基金会的发言人汤姆Arnbom博士，50岁，在瑞典斯德哥尔摩，认为在这些图像上的北极熊可能是在世界上仅有的两个种群数量得到增长的其中之一

The genetic relationship between two canine populations is closer than their genetic relationships with the marmot population.

三。在研究的三个人蚤地理种群中，寄生家犬的两个种群在遗传关系上比较接近；寄生旱獭的种群和前两者之间的遗传关系较远。

As housing needs grow along with urban populations, governments and developers are increasingly keen on "green" projects, writes Maryann Bird.

住宅需求随着城市人口的增长而上升，政府和开发商对"绿色"项目越来越感兴趣了--玛莉安。

The association is stable, and the Wolbachia strain is maternally inherited at high frequency. It is capable of inducing complete cytoplasmic incompatibility, which should facilitate its invasion into natural field populations and its persistence over time.

由于登革热病毒需要在蚊虫体内孵育几周的时间才能变得具有感染性，因此研究人员提出，缩短蚊虫的寿命可以有效地减缓登革热及其它相似且致命性病毒的传播。

Maximal chain lengths of S. costatum were greater in natural populations than in the batch culture.

自然群体的最大细胞链长度比批次培养的最大细胞链长度要大。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。