Fifthly, we need to consider the effect on the local population.

第五，我们必须考虑对当地居民的影响。

《牛津词典》

This, in turn, has a major effect on their diet, leading scientists to speculate that the ability to learn population-specific hunting methods could be driving the animals' genetic development.

这进而对它们的饮食产生了重大影响，促使科学家们推测，学习特定种群狩猎方法的能力可能推动了这些动物的基因发育。

youdao

Population bottlenecks can have the same effect.

人口瓶颈具有相同的效应。

youdao

She explains that the strategy did not work as predicted because of what's called a population level effect.

VOA: standard.2010.03.22

"She would come down to our graduation ceremonies and it was incredible the effect she had on the entire population of the base, We all loved her!

VOA: standard.2010.05.15

"When you can't say for sure whether all the women in the advance provision group actually used the medication, then you're kind of looking at population level effect of a strategy, not the individual effect of a medication."

VOA: standard.2010.03.22

The Islamists had cut off the road south and the population - in effect held hostage inside the town - was preoccupied with staying out of trouble and hunkering down in their homes to avoid the daily air strikes from the French military against the Islamists positions.

BBC: Africa

On January 1st China's FTA with ASEAN, the world's biggest by population, came into effect.

ECONOMIST: Regional economic integration has a long, long way to go

The economic effect of population decline will, in all probability, be severe, long-lasting, and evident soon.

FORBES: Is China Running Out Of Workers?