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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.