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Investigation 2, Part 2. Video Population Study. Warm up. Are you a member of a community? More than one? Are you in two different communities when you are at home and school? Can you be anywhere that you are not in a community? It depends on the limits of the community, but most likely yes.

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investigation 2 part 2

Investigation 2, Part 2

Video Population Study

warm up
Warm up
  • Are you a member of a community? More than one?
  • Are you in two different communities when you are at home and school?
  • Can you be anywhere that you are not in a community?
    • It depends on the limits of the community, but most likely yes.
    • They can be thought of as 2 different communities OR two locations in the same community.
    • Probably not. You will always be IN a community even if you are not a MEMBER of a community. Ex: swimming in the ocean.
ways to study ecosystems
Ways to Study Ecosystems
  • Bring a population in the lab to study. The population is isolated from the ecosystem in which it naturally lives.
  • Create a mini version of the ecosystem. This allows you to study how the populations interacts with the abiotic parts.
  • Study the population in it’s natural surroundings. This means traveling to where the population lives.
    • We are going to watch a movie made in 1984 about Jane Goodall who did this with chimpanzees.
movie
Movie
  • Please review page 13.
  • You can fill in this sheet as we watch the movie.
  • Some questions are not addressed specifically in the movie. You will have to take what you have learned so far and apply it to the questions being asked.
  • Notice at the end of the move how Jane Goodall uses the word community. Toward the end, she uses it in the common rather than the scientific sense.
review
Review
  • Question 1:
    • 26 years, 1960
  • Question 2:
    • Binoculars, tape recorder, camera, field notes
    • Find a high viewing point, indirect observations
  • Question 3:
    • Three
    • To study the impact of learned behavior over time and compare
  • Question 4:
    • Observational: you go to population and study
    • Experimental: Limited focus and controlled outcome
review1
Review
  • Question 5:
    • Use of tools, ate meat, nonverbal communication, aggressive
  • Question 6:
    • Biotic: termites, baboons,
    • Abiotic: storms, rainwater in trees, empty cans
  • Question 7:
    • Individual: Flo
    • Population: The Chimps
    • Community: All the chimps, baboons, termites, plants
    • Ecosystem: The community and all the interactions both biotic and abiotic
more questions
More Questions
  • Did Jane become part of the community of chimps?
    • When she revealed herself to the chimps, she became part of the community and the interaction changed over time.
  • How did her presence affect the chimps?
    • At first they would hide and be afraid
    • Then they stayed close to her
    • Later they came to camp for food
    • This caused aggressive behavior
more questions1
More Questions
  • Why do you think Jane chose to study in Africa rather than in a zoo?
    • She wanted to learn about their life in the wild and how they acted naturally in their natural surroundings.
  • How did she use the term “community” in the movie? Did she use it scientifically?
    • She used it in a way meaning “social community.” A better term would have been population.