You notice a new, beautiful aquatic plant growing in a local lake. This species has not been seen in the lake before. After doing some research, you believe the plant is a water hyacinth. These plants are not native to the lake and tend to grow in large quantities on the surface of the water. The plants grow and form dense areas of plant material, which blocks sunlight from passing through the plants. Predict the effects of the introduced species on the community structure of the lake ecosystem.