Trophic level- Where an organism
belongs in the food chain
Ecological Pyramids
• Pyramid of Energy
All energy comes from the sun
Plants use the sunlight to
create sugar and oxygen
Plants are called
PRODUCERS
because they
produce their own
food from the sun.
Some organisms eat the plants
Organisms that eat
plants are called
st
1 level
CONSUMERS
Other organisms eat the organisms
that eat the plants.
Organisms that eat
organisms that eat
plants are called
nd
2
Level
CONSUMERS
Some organisms eat the organisms
that eat the organisms that eat the
plants
Organisms that eat
organisms that eat
organisms that eat plants
are called
rd
3
level
consumers
DECOMPOSERS/
DETRITAVOIR
live on the dead
and rotting remains
of both plants and
animals
ENERGY FLOWS
FROM
Sun
Producer
1st level consumer
2nd level consumer
3rd level consumer
detritavoir/
decomposer
Arrows Points in the Direction
that Energy Travels
12 pictures minimum, each picture must
have at least ONE LABEL each. Labels
must include (but are not limited to) the
following:
•
•
•
•
•
•
•
Producer – Plants
Herbivore- primary consumer
Carnivore- secondary consumer
Top Carnivore- tertiary (third level) consumer
Omnivore- (primary or secondary?)
Scavenger- consume dead carcasses
Detritivoirs- consume detritus (litter, dung)
– Ex. Ants, beetles
• Decomposer- complete the final breakdown
– Ex. Bacteria, fungus
Food Web Essay
• 1 page, 3 paragragh
• Tell a story of a food web from the point of
view of ENERGY. Include and underline the
following terms:
•
•
•
•
Herbivore- primary consumer
Carnivore- secondary consumer
Top Carnivore- tertiary (third level) consumer
Detritivoirs- consume detritus (litter, dung)
– Ex. Ants, beetles
• Decomposer- complete the final breakdown
– Ex. Bacteria, fungus