Homework: Unit 4 of EOG packet, ?’s 6-12 Complete Park Analysis DateSessionActivitypage 4/ Population Dynamics Notes3 Population Dynamics practice4 4/17, 20 3Ecosystem Roles and Relationships5 Relationship Stories Video Ecosystems 6 Park Analysis7

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 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 ProducerConsumerDecomposer Make their own foodConsumes other organisms for food Break down dead organisms AutotrophsHeterotroph Plants, some algaeBears, Lions, InsectsBacteria, fungi Heterotroph Family…….the Vores! HerbivoreEats plants CarnivoreEats animals (meat) OmnivoreEats plants and animals DetritivoreEats dead organisms

Major relationships in ecosystems PredationCompetitionCooperationSymbiosis When one species uses another for food Predator eats prey Helps maintain healthy prey population Example:Example

Major relationships in ecosystems PredationCompetitionCooperationSymbiosis When one species uses another for food Predator eats prey Helps maintain healthy prey population The struggle between individuals or different populations for a limited resource Compete for: Food Shelter Mates Example:Example

Major relationships in ecosystems PredationCompetitionCooperationSymbiosis When one species uses another for food Predator eats prey Helps maintain healthy prey population The struggle between individuals or different populations for a limited resource Compete for: Food Shelter Mates 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 PredationCompetitionCooperationSymbiosis When one species uses another for food Predator eats prey Helps maintain healthy prey population The struggle between individuals or different populations for a limited resource Compete for: Food Shelter 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

+

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

Park Analysis 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.