1. Biodiversity
Friday, December 5, 2014

2. Do Now Homework Finish the back of the worksheet for homework Do Now
What is biodiversity?
What is an ecosystem?
What are 2 things that you learned yesterday?

3. Objectives
SWBAT describe the impacts that animals have on the ecosystem.
Essential Question
What are advantages to maintaining the biodiversity in an ecosystem?

4. Vocabulary
Ecosystem
A community of living organisms in conjunction with nonliving components

5. Wolves
Wolves were almost extinct in Yellowstone National Park. About 20 years ago, wolves were reintroduced. What do you think has happened to the biodiversity in the park since then?
Turn and talk with your table?

6. The Ecosystem of Yellowstone
How Wolves Change Rivers
A/B - How did the wolves change the ecosystem?
C/D - Take notes on living components and nonliving components of an ecosystem
A/C turn and talk, B/D turn and talk
Living
Nonliving

7. Biodiversity worksheet
First side of the page (page 20)
Unscramble the words to complete the sentences
First table to finish (with everything correct) gets a prize
Be careful not to speak too loudly so that the other tables hear you
Ecosystems
What message does this video communicate?

9. How Whales Change Climate Think about the following questions
Where are whales on the food chain?
How are whales changing their ecosystem?
What will happen without the whales?
What will happen without the smaller fish or the phytoplankton?
Does biodiversity create a healthy ecosystem? Why?

10. Threatened to extinct Threatened Species Endangered Species
Species which are vulnerable to endangerment
IUCN Red List - 10,838
Endangered Species
Considered at risk of extinction
IUCN Red List – 6,940 species
Extinct Species
The end of a species (death of the last individual)
*IUCN – International Union for the Conservation of Nature

12. Answer the Essential Question
What are the advantages to maintaining the biodiversity in an ecosystem?

13. Exit Ticket
The beaver is a very unique animal. The beaver changes the ecosystem the most besides humans. Beavers create dams, which create swamps and ponds. What impact do beavers have on the ecosystem?