Download ecosystem relationships

Date
Session
4/15-16
2
4/17, 20
3
Activity
page
Population Dynamics Notes
3
Population Dynamics practice
4
Ecosystem Roles and Relationships
5
Relationship Stories
Video Ecosystems
6
Park Analysis
7
Homework:
Unit 4 of EOG packet, ?’s 6-12
Complete Park Analysis
8.L.3 Understand how organisms interact with and
respond to the biotic and abiotic components of their
environment
8.L.3.1 Explain how factors such as food, water, shelter, and
space affect populations in an ecosystem.
8.L.3.2 Summarize the relationships between producers,
consumers and decomposers including the positive and
negative consequences of such interactions including
–
–
–
–
Coexistence and cooperation
Competition (predator/prey)
Parasitism
Mutualism
8.3.3 Explain how the flow of energy within food webs is
interconnected with the cycling of matter (including water,
nitrogen, carbon dioxide, and oxygen)
TLW identify ecosystem relationships using
scenarios and videos, then summarize how they
impact each other and the ecosystem thru a quick
write.
8.L.3 Understand how organisms interact with and
respond to the biotic and abiotic components of their
environment
8.L.3.1 Explain how factors such as food, water, shelter, and space
affect populations in an ecosystem.
8.L.3.3 Summarize the relationships between producers,
consumers and decomposers including the positive and
negative consequences of such interactions including
• Coexistence and cooperation
• Competition (predator/prey)
• Parasitism
• mutualism
Ecosystem Roles
Producer
Consumer
Decomposer
Make their own food
Consumes other organisms Break down dead
for food
organisms
Autotrophs
Heterotroph
Heterotroph
Plants, some algae
Bears, Lions, Insects
Bacteria, fungi
Heterotroph Family…….the Vores!
Herbivore
Eats plants
Carnivore
Eats animals (meat)
Omnivore
Eats plants and animals
Detritivore
Eats dead organisms
http://www.youtube.com/watch?v=C6sFP_7Vezg
Major relationships in ecosystems
Predation
Competition
Cooperation
Symbiosis
When one species
uses another for
food
Predator eats prey
Helps maintain
healthy
prey population
Example:
Example
Example
Example
Major relationships in ecosystems
Predation
When one species
uses another for
food
Predator eats prey
Competition
Cooperation
Symbiosis
The struggle
between individuals
or different
populations for a
limited resource
Helps maintain
healthy
prey population
Compete for:
Food
Shelter
Mates
Example:
Example
Example
Example
Major relationships in ecosystems
Predation
When one species
uses another for
food
Predator eats prey
Competition
The struggle
between individuals
or different
populations for a
limited resource
Helps maintain
healthy
prey population
Compete for:
Food
Shelter
Mates
Example:
Example
Cooperation
Symbiosis
An interaction in
which organisms
work in a way that
benefits them all.
Example
Example
Cooperation
Cooperation is an interaction in which
organisms work in a way that benefits
them all.
Major relationships in ecosystems
Predation
When one species
uses another for
food
Predator eats prey
Competition
The struggle
between individuals
or different
populations for a
limited resource
Helps maintain
healthy
prey population
Compete for:
Food
Shelter
Mates
Example:
Example
Cooperation
An interaction in
which organisms
work in a way that
benefits them all.
Symbiosis
A relationship
between individuals
of two DIFFERENT
species that live
together in a close
relationship.
Mutualism + +
Parasitism + Commensalism + 0
Example
Example
http://www.youtube.com/watch?v=GNfv_7M-R8c
+
+
Commensalism
-one organism benefits, the other is unaffected
+
0
+
--
Commensalism
Relationship Scenarios
Identify each relationship as:
Competition
Cooperation
Predator/prey (who is who)
Symbiosis (what type: M, C, P)
Identify:
Producer, consumer, autotroph, heterotrophs,
organisms, population, community, biotic, abiotic,
cooperation, competition, predator/prey, describe
habitat, describe niche of one organism.
https://www.youtube.com/watch?v=IHssoS3whxM
https://www.youtube.com/watch?v=2jXxtQRy47A
https://www.youtube.com/watch?v=BXCvLzDNWz0
Park Analysis
http://www.bbc.com/future/story/20140128-how-wolves-saved-a-famous-park
CHOOSE ONE, PART A:
CHOOSE ONE, PART B:
• Describe the habitat and
niche of the Yellowstone
Park wolves.
• Explain the reintroduction of wolves
into Yellowstone Park
changed the niche of
the Elk.
• Compare and contrast
the niche of two
populations in
Yellowstone park that
occupy the same
habitat.
• Describe the habitat and
niche of the Yellowstone
Park elk.