1. Population Growth and Regulation

14. Exponential Growth Curves

15. Exponential Growth Curves

17. Effect of Death Rates on Population Growth No deaths 10% die between doublings 25% die between doublings bacteria

22. Lemming Population Cycles

24. The S-Curve of Population Growth (biotic potential) Carrying Capacity Exponential Growth Equilibrium (environmental resistance) Number of Individuals Time

29. The Effects of Exceeding Carrying Capacity

37. Population Cycles in Predators and Prey

38. Experimental Predator– prey Cycles

42. Population Distributions: Clumped

44. Population Distributions: Uniform

46. Population Distributions: Random

50. Survivorship Curves

57. Human Population Growth

59. Pop. Growth Rates: Developed & Developing Countries Developing Countries Developed Countries

65. Generalized Age-Structure Diagrams Post-Reproductive (46-100 y old) Reproductive (15-45 y old) Pre-Reproductive (0-14 y old) Expanding Stable Contracting

66. Age Structures Compared

67. Age Structures Compared

70. Population Growth by World Regions 0 0.5 1 1.5 2 2.5 3 -0.5 World Average 1.4% Developing Countries 1.7% Africa 2.4% Latin America/Caribbean 1.8% Asia (excluding China) 1.7% China 0.9% North America 0.6% Developed Countries 0.1% Europe -0.1% Natural Increase (annual %)

73. The End