For instance, with its pollen bee colonies can pollinate other plants and keep them reproducing.

例如，蜂群的花粉可以给其他植物授粉，帮助它们繁殖。

They are believed to be linked to the collapse of bee colonies across Europe.

据悉这些物质与整个欧洲蜜蜂族群死亡有关。

For decades, bee colonies have been decreasing in America though they've been growing elsewhere.

几十年来，尽管蜂群在其他地方在增长，但在美国一直在减少。

These statistics are from the United States which currently has less than half the bee colonies it did in 1950.

这是美国的数据，目前美国的蜂群数量不到1950年的一半。

It also had an unexpected consequence. It destroyed Florida's bee colonies. The colonies are used to pollinate the nation's agriculture.

这也产生了意想不到的后果。飓风摧毁了佛罗里达州的蜂群。而这些蜂群的用途是为美国农业授粉。

The insecticide the seeds had been treated with resulted in a toxic dust cloud that killed 12,000 bee colonies in the region.

这种被杀虫剂处理过的种子产生了有毒的粉尘云，杀死了该地区的1.2万个蜂群。

From the middle of the last century until now, U.S. bee colonies have declined from about 6 million to less than 3 million.

从上世纪中叶到现在，美国蜜蜂的数量从大约600万只下降到不到300万只。