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Feb 17, 2011 Tear out Parts 3 & 4 of HW pkt, hand in w/ name on it (attach all answers & diagrams/graphs) How are exponential and logistic growth similar?

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Presentation on theme: "Feb 17, 2011 Tear out Parts 3 & 4 of HW pkt, hand in w/ name on it (attach all answers & diagrams/graphs) How are exponential and logistic growth similar?"— Presentation transcript:

1 Feb 17, 2011 Tear out Parts 3 & 4 of HW pkt, hand in w/ name on it (attach all answers & diagrams/graphs) How are exponential and logistic growth similar? How are they different? In the real world, what model of growth is shown for populations? Why?

2 Q: What about human populations?
Demography is the study of human populations Influenced by many things that don’t impact other populations in nature Technology, medicine, agriculture, sanitation

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4 Q: What about human populations?
Growth rate peaked in the 60s and has been decreasing Population is still rising, just not as quickly as before

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6 Q: What about human populations?
Often times, we look at the age structure in order to determine growth Lots of young people = rapid growth Lots of older people = negative growth (lots at and/or beyond reproductive age) About equal young and old = stable/slow growth

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8 Miniature Earth World Population Simulation World Population Clock

9 Activities Population Graphs: Farmed Salmon vs. Wild Salmon
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