专业化和提高产量的努力导致了生物多样性的减少。

Specialisation and the effort to increase yields have resulted in the decrease of biodiversity.

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也有人暗示，在气候变迁中，物种的消失应该是一个值得担忧的问题。但历史中在地球的升温期，生物的多样性在增加并未减少。

Loss of species from climate change has certainly been suggested as a possible concern as well, but biodiversity in the Earth's warming periods has increased, not decreased historically.

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As we'll talk about later in the class, the biodiversity has shrunk so what used to be hundreds of varieties of corn is now just a few.

像我们后面所要提到的,玉米种群的生物多样性已经从曾经的,几百种减少到了现在的几种

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 biodiversity has shrunk for various reasons of profitability and as a consequence of that things like corn crops, and the orange crops in Florida are particularly susceptible to certain environmental conditions, certain pests, and certain types of blight.

生物多样性的减少源自利益的驱动,和玉米一样,佛罗里达的柑橘作物很容易受到,一定环境条件的影响,还有虫害和枯萎病

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选