Homework:Unit 4 of EOG packet, ?’s 6-12Complete Park Analysis

Date Session Activity page

4/15-16 2 Population Dynamics Notes 3

Population Dynamics practice 4

4/17, 20 3 Ecosystem Roles and Relationships 5

Relationship StoriesVideo Ecosystems

6

Park Analysis 7

8.L.3 Understand how organisms interact with and respond to the biotic and abiotic components of their environment8.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 environment8.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 RolesProducer Consumer Decomposer

Make their own food Consumes other organisms for food

Break down dead 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 ecosystemsPredation Competition Cooperation Symbiosis

When one speciesuses another for food

Predator eats prey

Helps maintain healthy prey population

Example: Example Example Example

Major relationships in ecosystemsPredation Competition Cooperation Symbiosis

When one speciesuses another for food

Predator eats prey

Helps maintain healthy prey population

The struggle between individuals or different populations for a limited resource

Compete for:FoodShelter Mates

Example: Example Example Example

Major relationships in ecosystemsPredation Competition Cooperation Symbiosis

When one speciesuses another for food

Predator eats prey

Helps maintain healthy prey population

The struggle between individuals or different populations for a limited resource

Compete for:FoodShelter Mates

An interaction in which organisms work in a way that benefits them all.

Example: Example Example Example

Cooperation

Cooperation is an interaction in which organisms work in a way that benefits

them all.

Major relationships in ecosystemsPredation Competition Cooperation Symbiosis

When one speciesuses another for food

Predator eats prey

Helps maintain healthy prey population

The struggle between individuals or different populations for a limited resource

Compete for:FoodShelter Mates

An interaction in which organisms work in a way that benefits them all.

A relationship between individuals of two DIFFERENT species that live together in a close relationship.

Mutualism + +Parasitism + -Commensalism + 0

Example: Example 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:CompetitionCooperationPredator/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=IHssoS3whxMhttps://www.youtube.com/watch?v=2jXxtQRy47Ahttps://www.youtube.com/watch?v=BXCvLzDNWz0

Park Analysishttp://www.bbc.com/future/story/20140128-how-wolves-saved-a-famous-park

CHOOSE ONE, PART A:

• Describe the habitat and niche of the Yellowstone Park wolves.

• Describe the habitat and niche of the Yellowstone Park elk.

CHOOSE ONE, PART B:

• Explain the re-introduction 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.