Invasive Species: More Than Just a Thorn in the Side

First, invasive species outcompete native species. It’s not a fair fight since invasives have many adaptations that allow them to survive and outcompete the native species. Habitats are diminished by losses of diversity when invasives invade. For example, the bush honeysuckles leaf out much earlier than our native honeysuckle. They usually have flowered before most native shrubs leaf out. This can confuse our native pollinators and lead to poor pollinator survival. Our native bumblebees are extremely important for our native flowering plants and even our garden crops.

http://www.backwoodssportsman.com/state-news-1.html