Most grains are used as food either for people or for livestock. But the increase in human consumption has been slowing for decades as population growth moderates.

大多数谷物一般都用作人类食品或者家畜饲料，但数十年来随着人口增长趋于缓和，人类谷物消耗量的增长已逐渐减缓。

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The steadily growing world population and increasing incomes creates higher demand for meat, but at the same time leaves limited space for expansion in livestock production.

世界人口的不断增长和收入的提高都导致对肉类消费有更高的需求，但同时对扩大畜牧生产的空间造成限制。

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In Niger, more than 7 million people, about half of the population, lost their crops and livestock in a severe drought.

在尼日尔，约占总人口一半的700多万人在一次严重旱灾中失去了庄稼和牲口。

youdao

The higher intake of livestock products, the report says, is the result of rising population, urbanization and increasing affluence in many parts of the world.

VOA: standard.2010.02.22

In 1783 an Icelandic volcanic fissure erupted and killed 25% of the Icelandic population and 50% of the livestock.

FORBES: When Opportunities Erupt

But ranchers and farmers in Wyoming have long argued that wolves prey on their livestock and want to be able to control the population.

BBC: Wyoming drops federal protection of gray wolves

Mr Parzer and Dr Moczek looked at beetles from the east and west of Australia (where it was deliberately introduced to deal with the dung of non-native livestock) and North Carolina, together with an aboriginal population from Italy.

ECONOMIST: Evolution