5 biotic and abiotic factors 9-14-09

5 biotic and abiotic factors 9-14-09 - 9/14/2009 Ecology...

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Unformatted text preview: 9/14/2009 Ecology 203 Overview Geographic Distributions Populations Communities Ecosystems Applications Gregg Hartvigsen 1 9/14/2009 Geographic Distributions Analyzing Geographic Distributions Limiting Factors: Biotic Limiting Factors: Abiotic Distribution and Abundance Gregg Hartvigsen 2 9/14/2009 Estimating the home range of an animal that forages using a “random walk” 3 9/14/2009 Estimating the home range of an animal that forages using a “random walk” asym = 28.20316 , SE = 0.5908952 Shelford’s Law of Tolerance (Know Liebig’s Law of the Minimum, p 55) 4 9/14/2009 = strain collected on serpentine soil Serpentine Normal ? 5 9/14/2009 Common Serpentine soil species Geographic Distributions Analyzing Geographic Distributions Limiting Factors: Biotic Limiting Factors: Abiotic Distribution and Abundance Gregg Hartvigsen 6 9/14/2009 Biotic Factors that Limit Distributions: 7 9/14/2009 Cane Toad 8 9/14/2009 Two modes of dispersal Diffusion Jump Dispersal Site of release N Distance Model using diffusion equations 9 9/14/2009 Modeling Biological Control Agents Reid’s Paradox = ? 10 9/14/2009 Why are there seasons? Assuming the Earth, with its atmosphere and other features, goes around sun, what else is necessary for there to be seasons? 11 ...
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5 biotic and abiotic factors 9-14-09 - 9/14/2009 Ecology...

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