1. Ecology review

2. The search for limiting factors

8. A biome is defined as, "a major regional or global biotic community, such as a grassland or desert, characterized chiefly by the dominant forms of plant life and the prevailing climate." There are a wide variety of biomes, including tundra, tropical and temperate rainforest, taiga or boreal forest, temperate forest, grassland, shrubland, savanna, and desert to name a few. Biomes are generally created by the interplay of temperature and precipitation in a given region on the Earth.

12. Grassland,Chaparral,Savanna, and Taiga

13. Tundra,Tropical forest, Wetlands, and Temperate forest

19. Responding to a threat

21. Chemical threat from injured fish

23. Zebrafish learned to associate smell of Pike with alarm substance

24. Evidence of evolution. Only garter snakes in coastal areas eat banana slugs

25. Energy cost and behavior

27. Male polymorphism

29. Altruism, the female is closer to her relatives and sounds arlams more frequently

31. Population dynamics

34. I and II density dependent and III density independent

35. Trade -off between reproduction and survival

38. K-selection on the S-curve

47. Lizards evolved to live in different communities based on original variations in the population

48. Trait shift

49. Batesian mimicry -harmless mimics harmful

50. Mullerian Mimicry - two unpalatable species mimic each other

51. Which is more diverse?

52. Food chain

53. Food web

54. Keystone predators- keep population in check

55. Otters are keystone

57. Succesion

58. Succession- Ecosystem changes over time after a disaster

59. Energy and chemical flow through a web. Energy is lost while chemicals recycle

62. Nitrogen limiting factor in the salt marsh

63. Only 33 Joules used for growth of new biomass

64. Rule of 10

65. Highest trophic level has least energy

72. Mauna Loa Lake

74. Ozone depletion

76. Since this picture was published the dolphin has gone extinct