FA2008 - BILD 3 - Lecture 08 (Popluation Ecology - 04)

FA2008 - BILD 3 - Lecture 08 (Popluation Ecology - 04) -...

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11/6/08 1 BILD 3 midterm curve (8 AM lecture) A - 128 – 150 (> 20% of scores) B - 112 – 127 (> next 30%) C - 82 – 111 (> next 40%) Median – 111 (C+) (74% of the points) Mean – 109 (73% of the points) Your final letter grade will be based on your TOTAL number of points. The curve will change between now and the end of quarter, as quizzes, activities, clickers points and the final are included. BILD 3 midterm curve (5 PM lecture) A - 118 – 150 (> 20% of scores) B - 104 – 117 (> next 30%) C - 78 – 103 (> next 40%) Median – 103 (C+) (69% of the points) Mean – 101 (67% of the points) Your final letter grade will be based on your TOTAL number of points. The curve will change between now and the end of quarter, as quizzes, activities, clickers points and the final are included. Overview - Population Ecology I. Population density II. Population dispersion III. Demography - Life tables IV. Life Histories V. Population growth Exponential Logistic VI. Population regulation VII. Human population growth Δ N Δ t = r max N ( K N ) K According to the logistic growth equation, a. The number of individuals added per unit time is greatest when N is close to zero b. The growth rate (r max ) increases as N approaches K c. Population growth ( ) is zero when N = K d. The population grows exponentially when K is small e. The birth rate (b) approaches zero as N approaches K Δ N Δ t VI. Population regulation What environmental factors stop a population
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FA2008 - BILD 3 - Lecture 08 (Popluation Ecology - 04) -...

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