8 Population Growth 9-25-09

8 Population Growth 9-25-09 - Just the Multiple Guess...

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Unformatted text preview: Just the Multiple Guess Normality: p < 0.001 Median = 75 Mean = 73.5 sd = 0.124 IQR = 0.1625 Ecology 203 Overview Geographic Distributions Geographic Distributions Populations Communities Ecosystems Applications Gregg Hartvigsen Populations Population parameters (C8) Population growth (C9) Population growth (C9) Competition (C10) Predation (C11) Herbivory and Mutualism (C12) Disease and Parasitism (C13) Regulation of Populations (C14 Regulation of Populations (C14) Harvesting Populations (C15) Pest Control (C16) Conservation Biology (C17) Population parameters (C8) Overview of population growth How big is a population? How big is a population? Demography Iteroparity vs Semelparity Semelparous plants Agava Lobelia Iteroparity vs. Semelparity Iteroparity = repeated bouts of Iteroparity repeated bouts of reproduction (often perennials) Semelparity = single bout of reproduction – adults die (often annuals) Isn’t one of these a better strategy? Cole’s Paradox (Lamont Cole, 1954) = there isn’t much of a difference between having an annua between having an annual strategy vs. perennial strategystrategy vs....
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8 Population Growth 9-25-09 - Just the Multiple Guess...

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