Red-Tailed Hawk, Coyote, Massasauga Rattlesnake, Western Meadowlark, Deer Mouse, Skunk, Snakeweed Grasshopper, Eastern, Cottontail, Dogbane Beetle, Switchgrass, Prairie Clover, Milkweed Plant, Wild Rye
7. On the trophic pyramid below, write the organisms from the cards that belong in each trophic level.
8. Use your charts from #2 to write the total energy available at each trophic level.
9. Calculate the available energy and energy lost at each level using the following steps in the example. Write your
calculated percentages for each level transfer in the table below.
Trophic Pyramid:
1. Red-Tailed Hawk, Coyote
2. Massasauga Rattlesnake
3. Western Meadowlark, Deer Mouse
4. Skunk
5. Snakeweed Grasshopper, Eastern Cottontail
6. Dogbane Beetle
7. Switchgrass, Prairie Clover, Milkweed Plant, Wild Rye
Total Energy Available:
1. 200,000 kcal
2. 40,000 kcal
3. 10,000 kcal
4. 2,000 kcal
5. 500 kcal
6. 100 kcal
7. 50 kcal
Energy Lost:
1-2 (80%)
2-3 (75%)
3-4 (80%)
4-5 (75%)
5-6 (80%)
6-7 (50%)
Percentage of Energy Transfer:
1-2: 80%
2-3: 75%
3-4: 80%
4-5: 75%
5-6: 80%
6-7: 50%