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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 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. • 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 • 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 • 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 • 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
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 • 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 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.