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Ecology, Evolution and Diversity

Ecology, Evolution and Diversity. General Biology I. The two hour version. Part 1. Steven Mark Norris. steven.norris@csuci.edu. http://faculty.csuci.edu/steven.norris/. Biology. bio + logia. =. “study of life”. Biology. “skin-in”. “skin-out”. Biology. “skin-out”.

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Ecology, Evolution and Diversity

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  1. Ecology, Evolution and Diversity General Biology I The two hour version Part 1

  2. Steven Mark Norris steven.norris@csuci.edu http://faculty.csuci.edu/steven.norris/

  3. Biology bio + logia = “study of life”

  4. Biology “skin-in” “skin-out”

  5. Biology “skin-out”

  6. Biological Themes Evolution “Nothing in biology makes sense except in the light of evolution.” Theodosius Dobzhansky

  7. Biological Themes Ecology

  8. Biological Themes Bio-diversity

  9. Science

  10. Western Science Plato and Aristotle Raphael, ca. 1510 The Vatican

  11. Sir Francis Bacon (1561-1626) Trusting our senses

  12. Natural Philosophy Sir Isaac Newton (1643-1727) Robert Boyle (1627-1691) Robert Hooke (1635-1703)

  13. Natural Philosophy “Let it not suffice to be book-learned, to read what others have written and to take upon trust more falsehood than truth, but let us ourselves examine things as we have opportunity, and converse with Nature as well as with books.” John Ray -- 1691 (1627-1705)

  14. Natural Theology William Paley - 1802 Natural TheologyEvidences of the Existence and Attributes of the Deity, collected from the Appearances of Nature

  15. Natural Science C. Darwin C. Lyell L. Pasteur A. Einstein

  16. The Scientific Method …..

  17. The Scientific Method ….. Hypothesis (= theory) Prediction and test Support or reject Proven or Truth

  18. Vacuum tubes Transistors

  19. Integrated Circuits

  20. US Navy Computer 1945 Notebook - 2008

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

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

  23. Individual

  24. Population

  25. Community

  26. Ecosystem

  27. Population Ecology

  28. Populations have attributes

  29. Populations can be large ……

  30. ….populations can be small. Devil’s Hole, Death Valley

  31. Life History and Fitness

  32. Life History Salmon spawning migration

  33. Life History Salmon spawning migration

  34. Life History Salmon spawning

  35. Life History the end

  36. Life History Fitness = the pay off Newly hatched salmon fry

  37. Broad range of live history strategies

  38. Community Ecology

  39. Communitiesand community interactions

  40. Competition

  41. Everyone loses when they compete

  42. Competition

  43. Resource Partitioning

  44. Niche Koala Bear Very narrow dietary niche

  45. Niche Racoon Very broad dietary niche

  46. Competition and niche Barnacles

  47. Competition and niche

  48. Predation (+/-)

  49. Predation

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