1. Welcome Back Future Scientists!

2. http://www.learnnc.org/lp/pages/4769

3. Part I- Introduction! GET OUT YOUR BRAINPOP SHEETS AND ECOLOGY GO NOTES!

4. Who studies Ecology? Ecologist The study of organisms and their environment.

6. Biotic Factors Living (bio=life) Example- Plants, animals, predators. Abiotic Factors Non-living (“a”- opposite) Example- Sun, dirt temperature.

7. 5 Levels of Ecology 5 1. Organism 2. Population 3. Community 4. Ecosystem 5. Biosphere

8. 1. Organism 1 living thing. Example- 1 giraffe

9. 2. Population 2 or more of the same species Example- 2 or more giraffes

10. 3. Community 2 or more different species, living Example- Zebras, giraffes and trees

11. 4. Ecosystem Living and nonliving Examples- zebra, giraffes, tree, sun, water, dirt.

12. 5. Biosphere Can support life Example: sphere- circle bio- life Earth!

13. BrainPop! Ecosystems!!

14. INTERACTIONS IN ECOLOGY

15. 1. COMPETITION HABITAT WHERE IT LIVES EXAMPLE? IN A TREE NICHE WHAT IT DOES (IT’S JOB) EXAMPLE? COLLECT ACORNS

16. What reduces Competition? By having organisms with different niches

17. 2. PREDATOR/PREY PREDATOR EATS Example? PREY GETS EATEN Example?

18. Prey/Predator Cycle PREY  PRED  PREY PRED WHY? (GETTING EATEN) (NO FOOD) WHY? (NO EATERS) (HAVE LOTS OF FOOD!)

19. CYCLIC REPRESENTATION OF PREY/PREDATOR RELATIONSHIP

20. The cycle is: Density Dependent Depends on the size of the population

21. 3. SYMBIOSIS Close and often long-term interactions between different species. THREE different types of symbiotic relationships.

22. BrainPop! Symbiosis

23. MUTUALISM BOTH ORGANISMS BENEFIT EVERYONE IS HAPPY!!!! Example?

24. Mutualism Ex. Flowers and their pollinators Honey Guide and Honey Badger Humans and E.coli

25. COMMENSALISM 1 BENEFITS, 1 IS UNAFFECTED Example?

26. Commensalism Ex. Barnacles on whales Fish hitching a ride on sharks Clownfish and sea anemone (could be mutualistic) Spiders build their webs on plants

27. PARASITISM 1 BENEFITS, 1 HARMED  EXAMPLES? **PARASITES MUST HAVE HOSTS- IF THE HOST DIES, SO DO THEY.**

28. Ticks Fleas Leech Mosquito