Name: Date: ______

Food Chains, Food Webs and Energy Pyramids

Station 1:

Algae / Fungi/Bacteria / Raccoon
Alligator / Heron / Sunfish
Bladderwort / Mosquito / Tadpoles
Carp / Orchid / Water Snake
Frog / Plankton

Station 2:

1.  What organism(s) are producers?

2.  Which organism(s) are secondary consumers?

3.  Which organism(s) are tertiary consumers?

4.  Which organism(s) are quaternary consumers?

5.  Which organism(s) are decomposers?

6.  What would happen to the carp if there were lots of frogs? Explain why.

7.  What would happen to the alligator if there were no mosquitoes? Explain why.

8.  What would happen to the orchid if there were no algae? Explain why.

Station 3

1.  There are two organisms that are occupying multiple niches. Identify the organisms and the niches they occupy.

Station 4

Station 4 (Continued)

1.  Which niche has the highest number of organisms?

2.  Is it a lot more or a little more?

3.  Which niche has the fewest organisms?

4.  Is it a lot less or a little less?

5.  Describe the pattern you see in the totals.

Station 5: Use the picture to answer the following questions below

1.  Identify the organism(s) that areproducers:

2.  Identify any organism(s) that areherbivores:

3.  Identify any organism(s) that are carnivores:

4.  Identify any organism(s) that are omnivores:

5.  List at least 5 of thefood chainsby writing the organism's name and drawing a line that points to the next organism in the food chain.

Station 6

Using the Venn Diagram below, fill in the information about food webs and energy pyramids, identifying how they are similar and different.

Station 1: Identifying Niches in Food Chain

On your answer sheet, write P for Producers, PC for Primary Consumers, SC for Secondary Consumers, TC for Tertiary Consumers, QC for Quaternary Consumers, and D for Decomposers. Use the food chains written here to help you.

·  Orchid à mosquito à frog à raccoon à alligatorà fungi/bacteria

·  Algae à mosquito à carp à alligatorà fungi/bacteria

·  Bladderwort à carp à heron à alligatorà fungi/bacteria

·  Plankton à tadpoles à sunfish à water snake à alligatorà fungi/bacteria

Station 2: Identifying Niches in Food Web

Food Web Example:

Fungi/Bacteria

Raccoon Alligator

Frog Carp

Mosquito

Orchid Algae

Now answer the questions on your answer sheet.

Station 3: Turning Food Chains Into Food Webs

Look at how I combined the two food chains below to make a food web.

2 food chains:

·  Orchid à mosquito à frog à raccoon à alligatorà fungi/bacteria

·  Algae à mosquito à carp à alligatorà fungi/bacteria

Food Web:

Fungi/Bacteria

Raccoon Alligator

Frog Carp

Mosquito

Orchid Algae

Using all of the 3 food chains below, draw a food web on your answer sheet.

·  Bladderwort à carp à heron à alligatorà fungi/bacteria

·  Orchid à crayfish à alligatorà fungi/bacteria

·  Algae à snails àwater snakes à heron à fungi/bacteria

Station 4: Food Pyramids

Examine the components of the deciduous forest ecosystem in the chart below. Write each organism in the correct component of the energy pyramid on your answer sheet. Add the total number of organisms in each level and write your total in the box to the right of each level of the pyramid.

Organism / Niche / Quantity in deciduous forest ecosystem
Deciduous trees / Producer / 3456
Ferns / Producer / 541
Berry bushes / Producer / 720
Wild flowers / Producer / 2670
Grasses / Producer / 609
Chipmunk / First order heterotroph / 1320
Deer / First order heterotroph / 30
Foxes / Second order heterotroph / 180
Opossum / Second order heterotroph / 210
Rabbit / First order heterotroph / 386
Wolves / Third order heterotroph / 20
Hawk / Third order heterotroph / 30
Woodpecker / Second order heterotroph / 310
Owl / Second order heterotroph / 190
Chickadee / First order heterotroph / 643
Snakes / Second order heterotrophs / 111
Frogs / Second order heterotrophs / 183
Toads / Second order heterotrophs / 234
Insects / First order heterotrophs / 2180

Station 5: Food Web Analysis

Direction: Use the food web picture below, answer the questions on your answer sheet.

Station 6: Venn Diagram Food Web vs. Energy Pyramid

Using the Venn Diagram on your answer sheet, fill in the information about food webs and energy pyramids, identifying how they are similar and different.

Extension:

Food chains of the Everglades

Add these food chains to the food web you created at Station 3.

·  Bladderwort à turtle à alligatorà fungi/bacteria

·  Algae à carp à fungi/bacteria

·  Orchid à rabbit à heron à alligator

·  Plankton à crayfish à water snake à alligator à fungi/bacteria