FLOW OF ENERGY

Draw a food web representing the flow of energy in an ecosystem. Investigate how changes in an ecosystem affect a food web. Imagine an ecosystem with the following populations: Level of Food Chain Types of Organisms Producers: berry bushes fruit trees oak trees maple trees Primary consumers: rabbits mice squirrels crickets ants grasshoppers Secondary consumers: foxes owls spiders hawks Tertiary consumers: wolves bears Draw a food web representing the flow of energy in the ecosystem. Be sure to include all of the populations. If necessary, research each animal’s diet to determine its place in the food web. After completing your food web, upload a picture of your poster. You will then answer the questions that follow. 1. If the ecosystem is balanced, which populations should be the largest? Which should be the smallest? 2.Imagine a group of hunters kills half of the rabbit population. How will it affect the other organisms? 3. Imagine disease kills 85 percent of the wolf population. How will it affect the other organisms? 4. Imagine a foreign mountain lion species is introduced into the ecosystem. How will it affect the other organisms?