ollowing hypothetical scenario. Be sure to include all four trophic levels in the pyramid, and provide the total biomass of living things found at each level. Be sure to include units, and label each trophic level. The shape of your pyramid should be based on the biomass of each trophic level. Levels with more biomass should be drawn wider, and levels with less biomass should be drawn thinner. Note that your biomass pyramid may or may not be a true pyramid. Scenario: Hickory Run Nature Reserve is a 150-acre conservation area filled with plants and animals native to the Mid-Atlantic region of the United States. A baseline study was done to determine the total biomass of producers and consumers living on the reserve. Baseline data will be compared to data collected in future years to determine trends in
Construct a biomass pyramid for the following hypothetical scenario. Be sure to include all four trophic levels in the pyramid, and provide the total biomass of living things found at each level. Be sure to include units, and label each trophic level.
The shape of your pyramid should be based on the biomass of each trophic level. Levels with more biomass should be drawn wider, and levels with less biomass should be drawn thinner. Note that your biomass pyramid may or may not be a true pyramid.
Scenario: Hickory Run Nature Reserve is a 150-acre conservation area filled with plants and animals native to the Mid-Atlantic region of the United States. A baseline study was done to determine the total biomass of producers and consumers living on the reserve. Baseline data will be compared to data collected in future years to determine trends in species accumulation or loss. This comparison is important because the region surrounding the reserve is experiencing a high rate of human development that may be impacting the natural productivity of the reserve.
The results of the study are found in table below. Data provided is from a line-transect survey that provided the best representation of plants and animals found on the reserve, from a depth of six inches below the surface of the ground to the forest canopy. Microscopic organisms were not included in the survey.
Biomass of Organisms Found in Hickory Run Nature Reserve
|
Species |
Type |
Biomass (dried) g/m2 |
|
Shagbark hickory |
Producer |
1000 |
|
Sugar maple |
Producer |
500 |
|
Beech |
Producer |
500 |
|
Dogwood |
Producer |
150 |
|
Spicebush |
Producer |
75 |
|
Bloodroot |
Producer |
50 |
|
Grasses |
Producer |
100 |
|
Mosses |
Producer |
50 |
|
Ferns |
Producer |
100 |
|
Insects |
Herbivore |
500 |
|
Mammals |
Herbivore |
700 |
|
Birds |
Herbivore |
300 |
|
Reptiles |
Secondary consumer |
200 |
|
Amphibians |
Secondary consumer |
250 |
|
Mammals |
Secondary consumer |
400 |
|
Insects |
Secondary consumer |
500 |
|
Birds |
Tertiary consumer |
200 |
|
Mammals |
Tertiary consumer |
300 |
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