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Let’s Take Notes on the Do Now.

Let’s Take Notes on the Do Now. Do Now. LISTEN! ANSWER 3 TO 5 NOW- I WILL MARK YOUR PAPER, YOU WILL TURN IT IN WITH NOTES FOR CREDIT. Choose 3 – 5 to answer. What happens to a population (number of individuals) of deer if: All the females reproduce? There is no corn this year?

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Let’s Take Notes on the Do Now.

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  1. Let’s Take Notes on the Do Now.

  2. Do Now • LISTEN! ANSWER 3 TO 5 NOW- I WILL MARK YOUR PAPER, YOU WILL TURN IT IN WITH NOTES FOR CREDIT. • Choose 3 – 5 to answer. What happens to a population (number of individuals) of deer if: • All the females reproduce? • There is no corn this year? • There is a forest fire? • There are too many deer in a small forest? • About half of the females reproduce?

  3. Monday, November 7, 2011 • LESSON STEPS: • DO NOW: SMILEY FACES MEAN YOU GET POINTS FOR ANSWERS WRITTEN DURING THE FIRST 10 MINUTES • NOTES ON THE DO NOW: PARTICIPATION FROM CLASS • POPULATION GROWTH CURVE: HANDOUT • MORE NOTES • TURN IN NOTES FOR CREDIT TODAY (ACCEPTED TOMORROW BY REQUEST)

  4. What happens to a population (number of individuals) of deer if…All the females reproduce? • EXAMPLE: This year: 40 deer in the forest. • All the females (20) reproduce: • ?(how many babies does one female have? Does it matter?) • …Students say: one female has one baby… If all females have twins this year, then there will be 40 babies. • Maybe 60 deer next year? (40 adult + 20 babies) • Maybe 80 deer next year? (40 adult + 40 babies)

  5. What happens to a population (number of individuals) of deer if…All the females reproduce? • Maybe 60 deer next year? (40 adult + 20 babies) • Maybe 80 deer next year? (40 adult + 40 babies) • …IF there are 2 babies for every 2 adults (1 male + 1 female -> make 2 babies) …THEN the population will be “STATIC” or unchanging. (except… you must also have a couple of extra babies to replace the deer that die this year)

  6. Question: what is a STATIC population?? • (ten points for a correct answer) • (combine with the previous 2 screens of notes for 30 points earned so far?) • ? • LISTEN! Finish answering this question. Staple your Do Now to your notes. Hand the notes to DIAMONDso I can grade them. • NEXT we’ll start the homework page together.

  7. Populations in Ecosystems • Increased rapidly…. EXPONENTIAL GROWTH • It stabilized for three years. • . • . • . • . • . • . • Density – independent: Those factors that affect all individuals in a given area, such as fire, floods, adverse weather conditions, volcanic eruptions, landslides Density – dependent: Those factors that operate according to the size of the populations, such as water, sunlight, soil nutrients, space, amount of food available, waste materials, disease

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