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Lec23 - Population Community Ecology Tuesday population...

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Population & Community Ecology: population structure & growth limitations on growth // natural fluctuations community ecology properties of a community interspecific interactions competition symbiotic relationships Ecological Succession stability - response to disturbances Tuesday 11/29/11 Quiz on Tuesday – 10pts - will cover today & Thurs lecture - will post study questions after class Thurs - will be able to use notes
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Population ecology & causes of these changes
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Population Growth - how population size changes over time Exponential growth -- Logistic growth - fig 33.3
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Population Growth - what factors influence growth? G = r = N = K =
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Carrying Capacity: # of individuals an environment can support Environmental resistance: - fig 33.3
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Natural fluctuations in population size: most long-term studies show population size determined by multiple factors key selective long-term studies are
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Human Population Growth: exponential growth “unlimited” resources Ecological Footprint:
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