Endangered Species Project
 You
are going to be making an
informational presentation about an
endangered species and its habitat
 For next class:

Come up with 3 endangered species that
you would like to work on
Food Chains!
Outline
 Trophic
levels
 Food Chains
 Game
 Food Webs
 Game
Why do we eat?
To gain energy!
Trophic Levels
Who eats what?
Primary Producer
 Organisms
in sunlight

Through photosynthesis
 Mostly

that produce energy by taking
plants or other green things
Examples: trees, algae, some bacteria
Consumer
 An
organism that eats another organism
to get food
 There are different types of consumers:




Herbivores
Carnivores
Omnivores
Decomposers
Types of Consumers Herbivores
 Herbivores

eat only plants
Take up the energy produced by plants
 Examples:
parrotfish
rabbit, caterpillar, koala,
Herbivore Examples
Types of Consumers Carnivores
 Carnivores

eat only meat
Eating other consumers thereby gaining
their energy
 Examples:
lion, shark, pelican, wolf
Carnivore Examples
Types of Consumers Omnivores
 Eat
both plants and meat
 Can
take advantage of different food sources
 Examples:
bears, pigs, humans, raccoons
Omnivore Examples
Types of Consumers Decomposer
 Organisms
that break down dead or
decaying organisms

Decomposers play a SUPER important role
in the ecosystem because they allow for
nutrients and energy to be recycled
 Examples:
fungi, worms, bacteria
Decomposer Examples
Review – Producer? Consumer?
Decomposer?
Algae = Producer
Rabbit = Consumer
Lion = Consumer
Mushroom = Decomposer
How are all these creatures
linked together?
 We
can show energy flow from one
organism to the next with food chains
But is it really THAT simple?
Food Webs
 In
any habitat you will have numerous
food chains and these can be linked to
create a food web!
Berries → butterfly → frog → snake → buzzard
Plantain → grasshopper→ frog → snake → buzzard
Berries → chickadee → fox