相关例句

• Human behaviour, however, is having a detrimental impact on animal migration.(然而，人类行为正在对动物迁徙产生不利的影响。)
• Without more research, we can't predict if Assisted Migration will work for any given species.(没有更多的研究，我们无法预测辅助迁移是否适用于某一特定的物种。)
• Migration is a complex issue, and biologists define it differently, depending in part on what sorts of animals they study.(迁徙是一个复杂的问题，生物学家对此有不同的定义，定义的方法部分取决于他们研究的动物种类。)
• Surprisingly, Bailyn suggests that those who recruited indentured servants were the driving forces of transatlantic migration.(令人惊讶的是，贝林认为那些雇佣契约仆役的人是跨大西洋移民的驱动力。)
• They have led some birds to give up on migration.(它们导致一些鸟类放弃迁徙。)
• Seasonal migration is another form of escape, especially for large mammals or birds.(季节性迁徙是另一种逃避方式，特别是对大型哺乳动物或鸟类来说尤为如此。)
• Migration is usually defined as "permanent or semipermanent change of residence".(移民通常被定义为“永久或半永久的居住变化”。)
• Considerations of this sort lead to the development of migration flow.(这类考虑导致了移民流动的发展。)
• From this evidence it was deduced that there had been three major waves of migration across the Bering Strait.(从这个证据可以推断，横跨白令海峡的大型移民潮曾经有过三次。)
• However, when the lemmings' food supply becomes too low to support the population, a singular migration commences.(然而，当旅鼠的食物供应变得太少而无法维持种群时，一次特别的迁徙就开始了。)