Invasive Species Effects

Invasive species cause negative effects on ecosystems. They can alter the chemical makeup of nearby waters, the abundance of resources, and they even change the food web. Invasive species impact similar existing species mostly through competition for food (and other things). There is no predator that naturally keeps invasive species in check because nobody around them is used to them being there filling in niches all over the place and taking other species jobs. This gives invasive species an advantage when resources become scarce. Ultimately, this leads to a decrease in species variation as the area invaded becomes less populated by native species and more taken over by invasive species. Invasive species also cause major expenses. These invaders