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Unit 7: Ecology 3/21/12

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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. Activity: . Watch each clip Identify the producers and consumers - PowerPoint PPT Presentation
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HomeworkMake vocabulary cards for producer, consumer, herbivore, omnivore, decomposer, and carnivoreBring 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 pictureRoles in an EcosystemProducersConsumersUse outside energy like the Sun to make energy rich molecules

Chlorophyll in plants do photosynthesis to take the Suns energy and produce carbohydrates and sugar.

Examples of Producers:

Cannot make their own energy. They obtain energy from eating other organisms

Four categories of Consumers:Herbivores: eat only plant matter Ex:

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 clipIdentify the producers and consumersIf you identify a producer, select which type of producer it is.

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 ofPARASITISMMUTUALISMCOMMENSALISM

ActivityEcosystem Roles MobileUnit 7: Ecology 3/26/12EQ: How has human impact shaped forest ecosystems?Objective: SWBAT read an article about Love Canal and understand the environmental impact human actions can haveIA: QuizActivity: work on RAFT draft/final publication

Unit 7: Ecology 3/26/12EQ: How have environmental disasters shaped America?Objective: SWBAT illustrate by creating a RAFT an organisms perspective when a forest ecosystem is changedIA:Quiz

One-PagerAnnotate text: circle and share phrases that were meaningful to usMake a visual representation of our readingWrite two questions that are related to our visual representationAsk two questions to the author or share two observations about the storyClosing Share our one pagers, comments and questions to have a class discussionUnit 7: Ecology 3/27/12EQ: What relationships do organisms have in the environment?Objective: SWBAT identify symbiotic relationships in case studiesIA: What does it mean to cooperate?SymbiosisSYMBIOSIS is the interaction between two different organisms living together

HOST- usually the LARGER of the two organismsSYMBIONT- usually the SMALLER member

THE THREE SYMBIOTIC RELATIONSHIPS ARE...

PARASITISM

MUTUALISMCOMMENSALISM

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.

MutualismFor example, in the photo above, the host flower benefits by being pollinated by the traveling butterfly. The symbiont butterfly benefits from the nectar that it extracts from the flower.

15PARASITISMIs a relationship where the Symbiont lives in/on the HostThe Symbiont (or Parasite) BENEFITS The Host is HARMED

For example, the tick in the picture above is a parasite. It benefits by extracting blood from its human host. The human is harmed because

16ActivityIn 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 eels mouth. Is this an example ofPARASITISMMUTUALISMCOMMENSALISM

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 PARASITISMMUTUALISMCOMMENSALISM

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 ofPARASITISMMUTUALISMCOMMENSALISM

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 orchids presence. This relationship is an example of

PARASITISMMUTUALISMCOMMENSALISM

Unit 7: Ecology 3/ /12EQ: How is an animals habitat different than its niche?Objective: SWBAT differentiate between an organisms habitat and nicheIA: Can a predator also be a prey? How?Habitat vs. NicheHabitat - The place where an organism lives. A habitat is often thought of as the organism's address. Examples: A lions habitat is a savanna. A monkeys habitat is a rain forest. A cactuss habitat is in the desert. Niche - An organisms way of life. A niche is considered to be an organisms occupation.Examples: A lions 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 CreatureName:

What does it eat? Is it an omnivore, carnivore, herbivore, decomposer?

What are its predators?

What are its 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?

ClosingShare out creatures!Test ReviewPretestWhat do I need to study?QuestionsDefinitions to KnowHabitat - The place where an organism lives. A habitat is often thought of as the organism's address. Examples: A lions habitat is a savanna. A monkeys habitat is a rain forest. A cactuss habitat is in the desert. Niche - An organisms way of life. A niche is considered to be an organisms occupation. Examples: A lions 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.


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