Unit 6 Day 6 Food Webs in Action.

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Presentation transcript:

Unit 6 Day 6 Food Webs in Action

Opener The cattle egret (a bird) forages in pastures and fields among livestock such as cattle and horses, feeding on the insects stirred up by the movement of the grazing animals. Are the egret’s benefiting? Being harmed? Or Nothing is happening to them? Are the grazing animals benefiting? Being harmed? Or Nothing is happening to them? What type of symbiotic relationship do these animals have? 12 minutes

Agenda Go over 3 FRQs from the test Modeling Ecosystem Interactions Yellowstone Food Web Predictions: Impact of the Wolf Testing Predictions Video Reading

Important Dates May 29th May 31st seniors, you will be tested on Lab Report Due Ecosystem Assessment May 31st seniors, you will be tested on Blood sugar regulation and Endocrine System Cancer and the Cell Cycle Enzyme Structure and Function The Nerve Cell May 31st juniors, will take the Oaks Science Test June 6th junior finals, you will be tested on

Questions 1-3

Building A Food Web First: Then: MAKE A FOOD WEB You have 15 minutes. Read the description of each Yellowstone organism Cut out individual pictures Organize into Producers and Consumers Organize Consumers by Trophic Level Then: MAKE A FOOD WEB Use arrows to show the DIRECTION of the flow of energy Make as many connections as possible Also: look for other types of species interactions: Symbiosis Competition You have 15 minutes.

Posters Each group will present their poster to the other groups Look to see what is similar and different Then we will move on…

Trophic Cascade When a change at the top or bottom of the food chain moves through the entire food chain Food web=multiple, intersecting food chains

Making Predictions What would happen if the WOLF was removed from the ecosystem? What species would be affected? What would the effect be? Then, what would happen if the WOLF was re-introduced to the ecosystem? You have 10 minutes: Record predictions on a T-Chart on whiteboard

“How Wolves Change Rivers”

Reading What to do: Read the article Mark the text: Underline/highlight text that Margin notes: what species was affected? How? (+/-) 30 minutes