1. Unit 2: ECOLOGY!!!!

2. Ecosystems: Everything is Connected Dead leaf falls from a tree into a stream Bacteria and fungi start to eat the leaf Insects will start to physically break down the leaf Motion of stream will also break down the leaf Caddisflies will catch and eat the pieces

3. Algae and river plants will also eat the leaf Predator insects eat insects that ate the leaf Birds will eat the predator insects While nesting in trees, these birds excrete droppings that provide nutrients that can be used by the tree to form a new leaf.

4. What is an Ecosystem? Def: all the organisms living in an area together with their physical environment. Examples An Oak forest in NE Pennsylvania A coral reef in the Pacific Ocean

5. Coral Reef

6. Oak Forest

7. Vacant Lot

8. Components of an Ecosystem Biotic and Abiotic factors OrganismsPopulationsCommunities

9. Ecosytem Def: All the living and nonliving things in an area

10. Biotic Factors Biotic Factors: The living parts & ONCE living parts of an ecosytems Includes all the Plants and animals

11. Biotic Factors Include: Dead Organisms Dead parts of an organism Leaves An organism’s waste products

12. Abiotic Factors Def: The non-living parts of an ecosystem Includes:AirWaterRocksSandLightTemperature

13. What’s in an Ecosystem? All the living and nonliving things in an ecosystem Examples:GardenLog

14. Garden

15. Log

16. Rainforest Rain Tree Frog Human Tourist Spider Monkey Soil Moist Air Rocks Monkey Poop Dead Toucan bird Waterfall Sunlight Dead branch

17. Rainforest Rain Tree Frog Human Tourist Spider Monkey Soil Moist Air Rocks Monkey Poop Dead Toucan bird Waterfall Sunlight Dead branch

18. Desert SandCactus Gila Monster MountainMoonlight Dead Rattlesnakes Urine Clouds Temperature Hair Gravel

19. Desert SandCactus Gila Monster MountainMoonlight Dead Rattlesnakes Urine Clouds Temperature Hair Gravel

20. Activity Pick two ecosystems to compare and contrast. Find the similarities and differences between abiotic and biotic factors in your two ecosystems Time: 4 minutes

21. Drill Time! Complete Homework #5 on page 11 Independent, silent work Time: 4 minutes

22. Biodiversity

23. Def: The variety of living things in an ecosystem

24. Types of Biodiversity High Biodiversity An ecosystem that has a large variety of plants and animals An ecosystem that has a large variety of plants and animals Think: Different Think: Different Low Biodiversity An ecosystem that has very few different plants and animals Think: Same

25. High or Low Biodiversity? Over 1,00 species of insects live in just one kind of rainforest tree, and the rainforest contains over 250,000 different kinds of plants

26. High or Low Biodiversity Many plants and animals have difficulty surviving in the scorching heat of the desert

27. High or Low Biodiversity Wetlands support a wide variety of species. Plant life flourishes in the wetlands

28. Drill Time Complete Practice #6 and Homework #6 Low volume group work Time: 4 minutes

29. Bill Nye the Science Guy A short video (23 minutes) on biodiversity Fill out video worksheet slip Don’t forget your NAME!!