支持这一观点的是，长期存在的顶极群落通常比先锋群落有更复杂的食物网和更多的物种多样性。

Support for this idea came from the observation that long-lasting climax communities usually have more complex food webs and more species diversity than pioneer communities.

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实现生物多样性和陆地食物供应目标的一种选择是用更少的土地生产更高的产量，从而腾出土地用于保护目的。

One option for moving toward both biodiversity and terrestrial food supply goals is to produce greater yields from less land, thereby freeing land for conservation purposes.

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每天食物种类要丰富多样。

Eat a variety of foods daily.

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For example, nowhere in the world would people consider eating a rock, because a rock is non-food across all cultures; but aside from that, there's great variability and so social construction part of this is very important.

举例来说,世界上没有哪里的人会想吃石头,因为不管在哪种文化中,石头都不能当做食物,但是除此之外,各地的食物丰富而多样,所以社会意识是非常重要的一部分

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The variety is important.

食物多样性很重要

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So the fact is those lab animals have a hard-wired preference for foods that are high in fat and high in sugar, primarily because of the energy density that those foods bring to one, and then the variety is important because you get a mix of nutrients.

事实上 实验动物对高脂肪高糖的食物,有着强烈的偏爱,而这种爱基于,该类食物能给我们提供高能量,多样性很重要,因为你能摄取多种营养

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选