Transcript Ecology Ch16 - lifesciencemszyb


Producers
 Autotrophs;
make their food
using sunlight or
chemical energy
 Example: Plants,
Algae, Bacteria

Consumers
 Heterotrophs; get
their energy by
eating producers
or other
consumers
 Example:
Animals, Fungus,
Bacteria


A decomposer is an
organism that
breaks down dead
organisms.
Example:
worms

A fungus is an
organism that
decomposes
material.
Example:
mushrooms


An herbivore is an
animal that eats
only plants.
Example:
cows
A carnivore is an
animal that eats
only meat.
Example:
tiger


An omnivore eats
both plants and
meat.
Example:
people

Trophic levels
are a level of
organization
that
represents
where an
organism is
on the food
chain.
What is a food chain?
A food chain is the series
of steps by which energy
is transferred through an
environment from the
producers to the
consumers
Energy comes from the …
Energy for land and most
water food chains comes
from the sun.
As energy moves through the
food chain…
Energy that is captured by
producers is passed on
to consumers, but much
of it is lost.
Only 10% of all energy
captured by a group on
a food chain is able to be
passed on to the next
level
Energy (>>>)
is lost at each
level of the
food chain
and energy
pyramid.)
MewTwo captures 1 calorie of
Pikachu’s energy by eating him
Pikachu captures 10 calories of
Charmander’s energy by
eating him
Charmander captures 100
calories of Bulbosaur’s energy
by eating him
Bulbosaur captures 1,000
calories of the sun’s energy

A food web
shows all of the
food chains
connected to each
other within an
ecosystem.

How is a food chain similar to and different
from a food web?
Food
Chain
Example:
•Shows one
path of energy
transfer.
Food Web
•Shows paths
of energy
transfer.
•Shows many
paths of
energy
transfer.