Trophic Levels 13.3-4

Producers Primary Consumers Secondary Consumers Tertiary Consumers

Trophic Levels

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

How did you do Producers 1o Consumers 2o Consumers 3o Consumers Algae Salps Krill Comb Jelly fish Fish Sea Lions Great white shark

Autotroph Heterotroph Producers Primary Consumers Herbivore Carnivores Secondary Consumers Tertiary Consumers

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

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

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

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

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