3 Evolution and behavior 9-9-09-1

3 Evolution and behavior 9-9-09-1 - Ecology 203 Overview...

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Unformatted text preview: Ecology 203 Overview Geographic Distributions Geographic Distributions Populations Communities Ecosystems Applications Gregg Hartvigsen Introduction Evolution and Ecology Overview Evolution and Ecology Behavioral Ecology Organisms attempt to maximize fitness Fitness = “The reproductive success of an individual ” success of an individual…. = “The genetic contribution by an individual’s descendants to future generations of a population ” generations of a population. Those are pieces of it…… Fitness Absolute fitness = number of offspring produced by a specific genotype produced by a specific genotype after one generation. Better: Relative fitness = number of offspring Relative fitness = number of offspring produced by a specific genotype after one generation compared to (or “relative to”) the average for all genotypes. Krebs 2009, pg 20 If a bird has five chicks it may have high or low fitness. Why?...
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This note was uploaded on 07/11/2010 for the course BIO 209 taught by Professor Hartvigsen during the Spring '09 term at SUNY Geneseo.

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3 Evolution and behavior 9-9-09-1 - Ecology 203 Overview...

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