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Trophic Levels 13.3-4
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Producers Primary Consumers Secondary Consumers Tertiary Consumers
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Trophic Levels
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On a piece of paper, copy the chart below
On a piece of paper, copy the chart below. While watching the video, fill in all the creatures into their appropriate category. Producers 1o Consumers 2o Consumers 3o Consumers 4o Consumers
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How did you do Producers 1o Consumers 2o Consumers 3o Consumers
Algae Salps Krill Comb Jelly fish Fish Sea Lions Great white shark
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Autotroph Heterotroph Producers Primary Consumers Herbivore Carnivores
Secondary Consumers Tertiary Consumers
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Now, take the new terms and place them under each column they belong to.
Autotroph, Carnivore, Herbivore, Heterotroph Producers 1o Consumers 2o Consumers 3o Consumers 4o Consumers Algae Salps Krill Comb Jelly fish Fish Sea Lions Great white shark
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Now, take the terms below and place them under each column they belong under.
Autotroph, Carnivore, Herbivore, Heterotroph Producers 1o Consumers 2o Consumers 3o Consumers 4o Consumers Algae Salps Krill Comb Jelly fish Fish Sea Lions Great white shark Autotroph Heterotroph Herbivores Carnivore
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They show the flow of energy Length limited by available energy
Food Chain Linear They show the flow of energy Length limited by available energy
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Food Web • Producers • Primary consumers • Secondary consumers
• Expanded • More complex • Producers Major plants • Primary consumers Animals that eat plants • Secondary consumers Animals that eat herbivores • Higher consumers More complicated because they may be both secondary and tertiary • Decomposers Fungi, bacteria that eat the dead
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10% of energy available at
ECOLOGICAL PYRAMIDS energy transferred energy lost Pyramid of energy • Least Energy = top consumers • Most Energy = producers 10% of energy available at each trophic level is converted into new biomass at above level Pyramid of numbers • Least = top consumers • Most = producers Pyramid of Biomass tertiary consumers secondary primary producers 5 5000 500,000 5,000,000 tertiary consumers secondary primary producers 75 g/m2 150g/m2 675g/m2 2000g/m2
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