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Lecture 17

Lecture 17 Human Population Ecology

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Department
Biology
Course
BIO220H1
Professor
Doug Thomson
Semester
Winter

Description
Lecture 17 BIO220 Human Population EcologyIf rates constant birthimmigrationdeathemigration growth is densitydependent exponentialDNdTrNExponential growth if r0Simplest model of densitydependent regulationDNdTrNKNK Kcarrying capacity sigmoid growth logistic modelHuman projection from Allee etal predicted logistic modelReality more like exponentialExtrapolating from logisticpoor predictionStatisticaloExtrapolating beyond range of data always dangerousoLogistic not law just possible hypothesis for densitydependent growthBiologicaloLogistic allows no overshootsoLogistic assumes r K to be constantsHuman trajectory cant be modeled simplyGrowth r depends on fertility rates
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