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Let’s Take Notes on the Do Now.

Learn how deer populations fluctuate in response to different factors through an engaging lesson plan. The notes cover scenarios like female reproduction, limited resources, and environmental disasters, aiding in understanding population growth patterns. Gain insights on density-independent and density-dependent factors.

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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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