需要很多种土生昆虫给当地植物授粉。
Many of the indigenous insects are needed to pollinate the local plants.
蜜蜂是食物链的重要组成部分，因为开花植物的授粉依赖于昆虫，而蜜蜂是最有效的授粉昆虫。
Bees are a critical part of the food chain because flowering plants depend on insects for pollination and the honeybee is the most effective.
实验表明，昆虫能充当苏铁科植物、罕见热带植物、棕榈状热带植物的授粉者。
Experiments show that insects can function as pollinators of cycads, rare, palmlike tropical plants.
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