1. Ecology oikos + ology “study of home” Ernst Haeckel

2. Ecology How organisms interact with each other and their environment.

3. Ecology – the social movement

5. Individual

6. Population

7. Community

8. Ecosystem

9. Population Ecology Winter deer count

10. Community Ecology Stream survey

11. Ecosystem Ecology Measuring abiotic factors

12. Chapter 53 -- Population Ecology

13. Populations have range

14. Cattle egret Populations can increase their RANGE

15. Populations can be large ……

16. Populations can be small ……

17. Iriomote Wildcat Felis iriomotensis Inhabits only one small Japanese island

18. Devil’s Hole pupfish

19. Cyprinodon diabolis Devil’s Hole pupfish

20. The entire habitat for Cyprinodon daibolis. Devil’s Hole, Death Valley

21. California Condor (Gymnogyps californianus)

22. Random Dispersion

24. Uniform Dispersion

26. Clumped Dispersion

29. Example: a survivorship curve Demography

30. and Fitness Life History

31. Salmon spawning migration

32. Life History Salmon spawning migration

33. Life History Salmon spawning

34. Life History the end

35. Newly hatched salmon fry the pay off Life History

36. Semelparity Life History Breed once and die

37. Reproductive adult plant Seedling (life history success) Agave (century plant) Semelparous organisms

38. Life History Iteroparity

39. r-selected: Atlantic cod (Gadus) k-selected: spiny dogfish (Squalus) r and k selected life history strategies r k

40. k-selected: redwood tree r-selected: dandelion r and k selected life history strategies r k

41. Population growth

42. Fur seal population recovery

43. Laboratory Demonstration of Exponential Growth

44. Density Dependent Factors

45. Density Independent Factors

46. An exponential curve, still on the up swing Human population growth

47. Population Structure

48. Environmental Footprints