Question

case study
interpreting the food web
what information can you get from your food web?
using the food web you constructed, you should be able to make observations about the eating habits of the animals in your case study.
match the role of each of the following organisms. (click on each organism to learn more)
what role do these organisms play in their environment?
red squirrel\tcrossbill\tlodgepole pine
consumer\tconsumer\t\ttype of organism
\t\t\tnutrient source
autotroph\t\therbivore\ttype of consumer
heterotroph

Explanation:

To determine the roles:

• Lodgepole Pine: It is a plant, so it is an Autotroph (produces its own food via photosynthesis), its nutrient source is Sunlight, Water, Carbon Dioxide (for photosynthesis), and it is a Producer (not a consumer).
• Red Squirrel and Crossbill: They are animals, so they are Heterotrophs (depend on other organisms for food). As they eat plants (like the pine), they are Herbivores (type of consumer), and their nutrient source is Plants (Lodgepole Pine).

For the dropdowns (matching roles):

• Type of Organism for Lodgepole Pine: Autotroph (since it makes its own food).
• Type of Organism for Red Squirrel and Crossbill: Heterotroph (they rely on others for food).
• Nutrient Source for Lodgepole Pine: Sunlight (and water, CO₂, but sunlight is a key energy source for photosynthesis). For Red Squirrel and Crossbill: Lodgepole Pine (or plant matter from it).
• Type of Consumer for Red Squirrel and Crossbill: Herbivore (they eat plants).

Answer:

• Lodgepole Pine:
• Type of Organism: Autotroph
• Nutrient Source: Sunlight (and water, CO₂)
• Type of Consumer: Producer (not a consumer)

• Red Squirrel:
• Type of Organism: Heterotroph
• Nutrient Source: Lodgepole Pine (plant matter)
• Type of Consumer: Herbivore

• Crossbill:
• Type of Organism: Heterotroph
• Nutrient Source: Lodgepole Pine (plant matter)
• Type of Consumer: Herbivore

(Note: For the dropdowns in the interface, select these options accordingly. The key is recognizing autotrophs (producers, plants) vs heterotrophs (consumers, animals) and herbivores as plant - eating consumers.)