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。
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.
这个故事讲述的是恢复了种群数量的小狐狸，以及一生致力于保护灰狐的人类。
This is the story of the little fox that has come back, and the people who have dedicated their lives to protecting it.
再假设，种群迁往一个地方——如尼罗河上游，那里的人的特点是身材高大。
Suppose this population migrates to a region, like the Upper Nile, where it is an advantage to be very tall.
为什么我们是仅存的人类种群？
或许属于这种群体中的人们彻底地改变自己的行为，并在很多方面袒护同胞就显得并不足为奇。
Perhaps it's not surprising people in these groups radically change their behaviour, preferring members of their own group over others in many ways.
例如中美洲的玛雅人，是当时最进步也是最成功的人类种群之一。
The Maya of Central America, for example, were among the most advanced and successful people of their time.
这个群岛国家富含有许多生物群落，从亚热带物种群落到亚寒带物种群落，应有尽有，这一切对那些正在寻找新奇的，具有商业价值的重要物种的人来说是躲在兴奋的一件事情。
The archipelago provided a number of biomes, from sub-tropical to sub-Arctic, which contained a rich array of botanical delights for those in search of new and commercially important species.
当时的人数甚至不及现在濒临灭绝的黑猩猩（21000头）和大猩猩（25000头）的有效种群大小（即能生育的个体数量）。
That number is smaller than current figures for the effective population size (or number of breeding individuals) for endangered species such as chimpanzees (21, 000) and gorillas (25, 000).
Barzilai总结了他关于东欧犹太人的研究，并不仅仅因为他们比其他种群中的人们长寿或是产生了更多的百岁老人，他们并没有。
Barzilai centered his studies on Ashkenazim not because they live longer or produce more centenarians than other ethnic groups. They don't.
长期的人为干扰，导致其种群数量急剧减少，目前调查地区仅存不到600株。
Due to human destruction its population is decreasing rapidly with less than 600 plants in the investigation area.
曾经有很多这样的人，但是现在他们成为了濒危的种群。
There used to be a lot of them, but now they are a dying breed.
这一研究结果对大袋鼠的人工繁育和种群保护有一定的指导意义。
These results would be of help for the artificial breeding and population conservation for the Macropus.
上述结果可为鳙鱼种群的生化遗传结构分析以及鳙鱼的人工育种提供基础资料。
The above results provide basic information for the biochemical genetic survey of bighead carp populations and artificial breeding of bighead carp.
研究结论如下： 沙棘是一个良好的人工林天然化灌木物种，在黄土丘陵区该种群更新良好。
Hippophae rhamnoide is a nicer shrub species for plantation becoming savageness. This population could renew very well in Hilly-gully region of Loess plateau.
本文以蚕豆和蚕豆蚜构成的人工种间关系系统为对象，研究了蚜虫种群动态和植物生理变化的关系。
The Experiments were carried out to study the relationship dynamics of Aphis craccivora population and Vicia faba between physiological stress on the basis of plant-insect experimental system.
调查影响疟疾流行的人群及地理分布特征，暴发点分布、流行程度等社会、经济和自然因素，以及媒介按蚊的种群和密度。
Influence factors of malaria epidemic were investigated, including population features, geographical distribution, epidemic focus and intensity, and the species of Anopheles.
千人基因组计划旨在发现多个人类种群中发现基因型、为所有形式的人类DNA多态性提供精确的信息。
The aim of the 1000 Genomes Project is to discover, genotype and provide accurate haplotype information on all forms of human DNA polymorphism in multiple human populations.
人首先是一种群居动物，然后才是一个理智的人。
鳄类的人工饲养在世界上是一种新型产业，它有二种饲养方式，但都必须具备种群、食物、资金和技术四个基本要素。
Crocodilian farming is a relatively new industry in the world, there are two ways of crocodilian farming which must contain the four principal resources of stock, food, money and technique.
鳄类的人工饲养在世界上是一种新型产业，它有二种饲养方式，但都必须具备种群、食物、资金和技术四个基本要素。
Crocodilian farming is a relatively new industry in the world, there are two ways of crocodilian farming which must contain the four principal resources of stock, food, money and technique.
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