This means that cane toads are numerous enough to suck up all the insects from the biota.

这意味着甘蔗数量足以吸食生物群中所有昆虫。

Greg says: Cane toads are so numerous that they suck up all the insects from the biota.

格雷格说：甘蔗数量众多， 以至于它们吸食生物群中所有昆虫。

If the structures increase the overall abundance of prey in the environment, then they may provide the sustainable new foraging opportunities for these biotas.

如果整体大环境中猎物大量增加, 那它们就以为生物种群提供新觅食机会。

That they suck up all the insects from the biota. Cane toads are so numerous that they suck up all the insects from the biota.

他们吸食生物群中所有昆虫。甘蔗数量众多，以至于它们吸食生物群中所有昆虫。

We aren't sure why more animals haven't been able to put these microbes to work for them; perhaps it's because their guts don't have the right chemical composition or because other biota already living there are hostile towards newcomers.

我们不确定为什么更多动物不能让这些微生物为它们工作；也许是因为他们内脏没有正确化学成分， 或者因为已经生活在那里其他生物群对新来者充满敌意。