Transcript This relationship is an example of

Unit 7: Ecology 3/21/12
EQ: What are the different roles in an
ecosystem?
Objective: SWBAT define ecosystem roles and
recognize them in a case study
IA: What is carrying capacity? Define the term
Roles in an Ecosystem
Producers
Consumers
Use outside energy like the Sun to
make energy rich molecules
Cannot make their own energy. They
obtain energy from eating other
organisms
Chlorophyll in plants do photosynthesis
to take the Sun’s energy and produce
carbohydrates and sugar.
Four categories of Consumers:
Herbivores: eat only plant matter
Ex:
Examples of Producers:
Carnivores: eat only other animals
Ex:
Omnivores: eat other animals and plants
Ex:
Decomposers: break down and recycle
formerly living matter. Other animals may
use the recycled food
Ex:
Activity:
• Watch each clip
– Identify the producers and consumers
– If you identify a producer, select which type of
producer it is.
Homework
• Make vocabulary cards for producer,
consumer, herbivore, omnivore, decomposer,
and carnivore
• Bring in or draw a picture of a producer,
consumer, herbivore, omnivore, decomposer
and carnivore.
– The picture must be colorful and cannot be larger
than 4 inches if possible.
– Write your name on the back of each picture
Activity
• Ecosystem Roles Mobile
Unit 7: Ecology
3/26/12
EQ: How has human impact shaped forest
ecosystems?
Objective: SWBAT read an article about Love
Canal and understand the environmental
impact human actions can have
IA: Quiz
Activity: work on RAFT draft/final publication
Unit 7: Ecology
3/26/12
EQ: How have environmental disasters shaped
America?
Objective: SWBAT illustrate by creating a RAFT
an organisms perspective when a forest
ecosystem is changed
IA:Quiz
One-Pager
1) Annotate text: circle and share phrases that
were meaningful to us
2) Make a visual representation of our reading
3) Write two questions that are related to our
visual representation
4) Ask two questions to the author or share
two observations about the story
Closing
• Share our one pagers, comments and
questions to have a class discussion
Unit 7: Ecology 3/27/12
EQ: What relationships do organisms have in the
environment?
Objective: SWBAT identify symbiotic
relationships in case studies
IA: What does it mean to cooperate?
Symbiosis
• SYMBIOSIS is the interaction between two
different organisms living together
– HOST- usually the LARGER of the two organisms
– SYMBIONT- usually the SMALLER member
THE THREE SYMBIOTIC
RELATIONSHIPS ARE...
PARASITISM
MUTUALISM
COMMENSALISM
COMMENSALISM
• Is a relationship between the
host and symbiont, where
the symbiont benefits and
the host is neither helped
nor harmed.
• The symbiont benefits by
receiving transportation,
housing, and/or nutrition.
Mutualism
• Is a relationship between
the host and a symbiont,
where both organisms
benefit and neither is
harmed.
• The relationship can be
long or short term.
PARASITISM
• Is a relationship where
the Symbiont lives in/on
the Host
• The Symbiont (or
Parasite) BENEFITS
• The Host is HARMED
Activity
• In each scenario, determine the form of
symbiosis. Write the form and describe why.
In this photo the “cleaner fish”
receives nourishment by dining
off of the parasites and
remaining food debris in the
eel’s mouth. Is this an example
of…
PARASITISM
MUTUALISM
COMMENSALISM
Clownfish are frequently found in
the tentacles of sea anemones. Sea
anemones capture their prey by
paralyzing them with their
tentacles. However, the clownfish
produces a mucus that prevents
the tentacles from harming it. By
dwelling amongst the tentacles the
clownfish receives a protected
home. This relationship is an
example of …
PARASITISM
MUTUALISM
COMMENSALISM
The birds in the picture are
munching on tiny parasitic
insects located on the rhino.
The relationship between the
birds and the rhino is an
example of…
PARASITISM
MUTUALISM
COMMENSALISM
Lampreys are primitive fish with
limited digestive systems. They
attach to and feed on the body
fluids of fish with more advanced
digestive systems, often leading
to the death of the host fish. This
relationship is an example of…
PARASITISM
MUTUALISM
COMMENSALISM
Orchids grow on the branches
of high trees. These orchids
get more water and sunlight
than those on the ground. The
tree is unaffected by the
orchid’s presence. This
relationship is an example of…
PARASITISM
MUTUALISM
COMMENSALISM
Unit 7: Ecology 3/28/12
EQ: What relationships do organisms have in the
environment?
Objective: SWBAT define predator/prey, graph
changing populations and identify trends
IA: Quiz!
Predator v. Prey
• A predator is an organism that eats another
organism.
• The prey is the organism which the predator
eats.
Activity
• Graphing deer and wolf populations
Unit 7: Ecology
3/ /12
EQ: How is an animals habitat different than its
niche?
Objective: SWBAT differentiate between an
organisms habitat and niche
IA: Can a predator also be a prey? How?
Habitat vs. Niche
• Habitat - The place where an
organism lives. A habitat is often
thought of as the organism's
address.
– Examples: A lion’s habitat is a
savanna. A monkey’s habitat is a
rain forest. A cactus’s habitat is in
the desert.
• Niche - An organism’s way of
life. A niche is considered to be
an organism’s occupation.
– Examples: A lion’s niche includes
where and how it finds shelter
and food, when and how often it
reproduces, how it relates to
other animals, etc.
Create Your Own Creature
Name:
What does it eat? Is it an omnivore,
carnivore, herbivore, decomposer?
What are it’s predators?
What are it’s prey?
Does it cooperate with any other organisms?
What form of symbiosis is this?
Habitat:
Niche:
Is this animal threatened? How can we
protect it?
Closing
• Share out creatures!
Test Review
• Pretest
• What do I need to study?
• Questions
Definitions to Know
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Habitat - The place where an organism lives. A habitat is often thought of as the organism's address. Examples: A
lion’s habitat is a savanna. A monkey’s habitat is a rain forest. A cactus’s habitat is in the desert.
Niche - An organism’s way of life. A niche is considered to be an organism’s occupation. Examples: A lion’s niche
includes where and how it finds shelter and food, when and how often it reproduces, how it relates to other
animals, etc.
Ecosystem - All the living organisms in a given area as well as their physical environment -- usually made up of
many complex interactions.
Abiotic factors - Non-living parts of an ecosystem. Examples: caves, rain and other water sources, minerals, etc.
Biotic factors - The living parts of an ecosystem. Examples: animals, plants, insects, sponges, fish, etc.
Biome - A geographic area characterized by specific plants and animals.
Predation - An interaction where one species consumes another.
Population - All the species that live in an area and make up a breeding group.
Community - All populations in a given area.
Predator - An organism that feeds off of other organisms.
Prey - An organism that is consumed by another organism.
Competition - An interaction among living things where two populations compete for the same resources and
territory.
Parasitism - An interaction among living things where one species benefits from the expense of another.
Mutualism - An interaction among living things where both species benefit from the relationship.
Commensalism - An interaction among two living things where one species benefits from the relationship and the
other is not affected.